ASP800-Manual
Contents
1. d Be 1 SET DAW SESSION SAMPLE RATE TO MATCH ASP800 MASTER ALSO ENSURE iD14 IS SET TO EXTERNAL ADAT CLOCK IN iD APPLICATION amp YOUR OPERATING SYSTEM SELECT MASTER SAMPLE RATE BY PRESSING THE LOCK SWITCH TO CYCLE THROUGH FOUR AVAILABLE SAMPLE RATES 44 1 to S6kHz wee iD140001 OPTICAL N tet chia 2 une w 12VDC 1 25A HOST 1L OUT 2R ASP800 ADAT OUTPUT TO iD14 ADAT INPUT SET DAW SESSION SAMPLE RATE amp MASTER CLOCK SAMPLE RATE IN DAW amp UA APOLLO UNIVERSAL AUDIO LINE INPUT a ka Kaka ka kaka ka SSI es Sg eg AL SY PRESS LOCK UNTIL FLASHING GREEN WILL TURN SOLID ONCE LOCKED TO EXTERNAL APOLLO BNC CLOCK OUT SOURCE ON BNC TO ASP800 CLOCK INPUT ASP800 ADAT OUTPUTS TO APOLLO ADAT INPUTS TERMINATE BNC WITH 750 19 CLOCKING CONFIGURATION UA APOLLO MASTER ASP800 audient By gt rae Antelope SET MASTER SAMPLE RATE VIA ORION FRONT PANEL SWITCHES OR SET IN DAW SESSION ORION ASP800 ADAT OUTPUTS TO ORION ADAT INPUTS PRESS LOCK ON BOTH AN ji ASP800 SLAVES UNTIL FLASHING GREEN WILL TURN SOLID ONCE LOCKED TO EXTERNAL SOURCE ON BNC TERMINATE BOTH BNCS WITH 75Q IF SINGLE POINT CONNECTION TO EACH ASP800 SET MASTER SAMPLE RATE VIA ORION FRONT PANEL SWITCHES OR SET IN DAW SESSION ORION BNC CLOCK OUT TO ASP800 CLOCK INPUTS Olle AN a a Al DEO Wi2. N E PRESS LOCK ON BOTH ASP800 SLAVES UNTIL FLASHING GREEN WILL TURN SOLID ONCE LOCKED TO EXTERNAL SOURCE ON BNC TERMINATE LAST DEVICE IN DAISY CHAIN AT 75Q CLOCKING CONFIGURATION ANTELOPE ORIONS2 MASTER amp DAISYCHAIN 20 OPECIFICATIONS MICROPHONE PREAMPLIFIER measured to balanced DB25 analogue outputs MIC GAIN SWITCHABLE PAD LINE GAIN PHANTOM POWER MIC EIN CMRR MAXIMUM INPUT LEVEL INPUT IMPEDANCE Mic INPUT IMPEDANCE Line FREQUENCY RESPONSE CROSSTALK THD N OdBu 1kHz SNR XLR COMBI FEMALE 1 4 TRS JACK DISCRETE JFET D I Oto ZO dB extra gain stage for more 15 dB all channels front panel switchable 10 to 60 dB 25 to 45 dB inc PAD 48V 4V 10mA channel lt 127 0 dBu gt 80 dB 100HZz to 2kHz 20 dBu 35 dBu with PAD gt 2k Q balanced approx 2 2k QJ gt 8k Q balanced approx 8 6k OJ 0 5 dB 10Hz to 100kHz min gain lt 90 dBu 10Hz to 10kHz lt 0 003 YO 5 dBu mostly 3rd harmonic gt 90 dB min gain Pin 2 Hot Pin 3 Cold amp Pin 1 Shield Tip Hot Ring Cold amp Sleeve Shield measured via microphone preamplifier circuitry D I GAIN MAXIMUM INPUT LEVEL INPUT IMPEDANCE D I FREQUENCY RESPONSE THD N OdBu 1kHz SNR 1 4 TS JACK O dB unity gain O to 70 dB 17 dBu 1 Meg Q unbalanced 0 5 dB 10Hz to SOkHz lt 0 01 BO dBu mostly 2nd amp 3rd gt
3. This ensures you get the most tone from your instrument and when pushed the JFET circuit will provide a touch of 2nd and grd harmonic distortion and with the option of adding HMX and IRON to your D I channels ASPGSOD is not short of features that can provide your instrument with some colour 9 Input Conditioning In order to correctly condition input signals ASP8O00 provides 48V Phantom Power and 15dB PADS on all inputs as well as polarity reversal on the first two inputs 1 Phantom Power Phantom power can be supplied on a per channel basis by pressing the 48V switch This supplies power to your microphones at 48V 4v 10mA per channel and is suitable for any phantom powered condenser mics or ribbons with on board active head amps etc 2 Polarity Reverse Polarity reverse 160 degrees can be applied on the RETRO channels to ensure that multimic setups sound as full as possible ALWAYS REMEMBER TO CHECK PHASE 3 1adB PAD Each channel on ASPSOQO features a 19dB attenuator designed to maintain source and load impedances and offer an inaudible attenuator from a tonal point of view Reducing the signal level from very hot microphones by 15dB will provide immense headroom when tracking loud sources audient gt 180 degrees 180 degrees out of phase cancellation Checking Phase To check phase coherency on multi mic setups first always use careful microphone placement and then press
4. li i A we Aa oz Hi Z 18dBu 1 4 288 2 SRA WORD 2 b CLOCK SMUX ALWAYS REPLACE FUSE V TH SAME TYPE em A L a 100 120V T1A 220 50V T500mA XLR MIC TRS LINE INPUTS 75 OHM TERMINATION BON mt kl kaa pan Line inputs are available on combi XLR TRS Z E MAINS IEC INPUT Terminates the workclock line at gt 48kHz Split Ports Ch 1 4 and 5 8 jack inputs padded into the mic pre Please select your mains line voltage ASP800 when last device in chain by rotating the fuse holder and lining up the text to the white arrow sample rates and then external sync with LOCK switch OAFETY INFORMATION Important Safety Instructions Please read all of these instructions and save them for later reference before connecting the mains IEC power cable and powering up ASP8OO To prevent electrical shock and fire hazard follow all instructions on the rear of the ASPSOD ELECTRIC SHOCK gen so DE CHOC plow oz me ej THIS EQUIPMENT MUST BE EARTHED DO NOT EXPOSE TO RAIN OR MOISTURE ASP800 does not contain any user serviceable parts inside and in the event of a failure A CAUTION ATTENTION please contact audient support so that we can arrange suitable service www audient com support A 1RU ventilation space above the unit is recommended and it is not advised to run the unit in a rack above hot units such as valve outboard and multichannel AD DA converters without suitable ventilation space around the unit
5. 2 Si R E MON nn Oo The LED metering on the ASP800 will show signal present at 38dBFS with a peak LED warning of potential overloads at 2dBFS However please rely upon the recording destination for accurate metering ideally you should never be so close to light the PEAK LED 16 SETUP CLOCKING Clocking with the ASP8UD There are two ways to integrate ASP8UD into your system digitally e AsaMASTER clock source internal clock e Asa SLAVE device external clock Master Clock Operation INTERNAL Assuming that you are connecting the ASPGSOD digital output to a DAW recording interface with ADAT inputs the ASP8 amp 00 can be set as MASTER clock source as follows select the appropriate sample rate on the front of ASP800 by pressing the SAMPLE SATE switch 1 The selected internal clock sample rate will be displayed by the YELLOVV LEDS 44 1 48 88 2 or SGKHz Ensure that your DAW recorder session is set to the same sample rate and that the clock source Is set to external digital ADAT input to allow your downstream device to receive master clock from ASP800s ADAT output Your DAW recorder should automatically follow the sample rate set on the front of the ASP800 Source Format 44100 0 Hz SAMPLE RATE 96 n pa ADAT OUT Si S y y Aa Wa l 1 8 lt 4 k 1 8 S 3 Pa ott 759 en JX J DESIGNED IN ENGLAND MADE IN CHINA CONNECT DIGITAL
6. Ensure side air vents are not covered The linear power supply design features a custom toroidal transformer that will accept any A C line voltage from 100v to 250v 50 60Hz Therefore the unit will work happily anywhere tn the world but you must ensure that the correct voltage is selected via the rotary fuse holder and the fuse Itself is correct for your region Consult a qualified technician if you suspect difficulties Do not attempt to tamper with the power supply or mains voltages HAZARDOUS TO HEALTH WARNING TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE NO USER SERVICEABLE PARTS INSIDE PLEASE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL audient Important Safety Instructions T pi 3 4 D 6 7 10 11 12 13 14 19 Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this equipment near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s Instructions Do not install near any heat sources such as radiators heat registers stoves or other equipment including amplifiers that produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong a
7. RETRO CHANNELS EXAMPLE SETTINGS audent utilises a magnetic core to create a number of non linear effects that have helped shaped the sound of classic 1970 s equipment These include e Transient shaping due to magnetic hystersis memory effect where the core stores energy e Low frequency saturation due to the magnetic core of the transformer filling up with magnetic energy e Phase shift amp airy frequency response changes caused by resonances within the core and incorrect damping e IRON also uses two discrete Class A MOSFET amplifiers that provides sloppy drive to the core and gain recovery after magnetic saturation Both of these stages add their own sweet harmonic distortion to create the special sauce audient A j DL nat 1 N j ie AAA Vy ANY oa ave i li 4000 L iit Ni LA kl kid id 20 00 Hz 100 00 10000 00 RON MIN mm IRC audient DWA i C2 es P so SATURATION B ke a lt CLASS A beiim CLASS A MOSFET HENE 1 1 600 Q BRITISH MOSFET lt TRANSFORMER IRON IRON IN OUT sa sa se sen e sa sa sa aa u sea a a a ee GANGED CONTROL FOR COMPLEX CIRCUIT VARIATION DRIVE VARIABLE LOADING amp RESONANCE LI 13 Combining amp provides ASPa8UD with the tonal ability to shape the source and move around THE TRIANGLE OF TONE This method of mapping the colouration allows you to voice the neutral preamp t
8. 85 dB min gain Tip Hot amp Sleeve Shield BALANCED ANALOGUE LINE OUTPUTS ground sensing compensation scheme MAXIMUM OUTPUT LEVEL OUTPUT IMPEDANCE 8 CHANNEL DB25 22 dBu lt 2000 ground sensing 100Q unbalanced 25 Pin Tascam Format HMX MOSFET SATURATOR THD N O dBu Min Drive 1 kHz THD N O dBu Max Drive 1 kHz NOISE Min Drive FREQUENCY RESPONSE WAVESHAPING 0 385 2nd amp 3rd only 2 73 2nd to 4th dominate 73 dBu like an old tube amp 30 to 150Hz low frequency emphasis bump see below Asymmetrical Tube like soft clipping HMX offers a valve tube like soft clipping that is pre and de emphasised with passive filtering to achieve a fat low frequency response with a softened midrange It uses three cascased MOSFET class A amplifiers to reach high levels of musical distortion but the output level is always held constant so your ears are not biased by loudness Some extra noise will act as a nice analogue dither when inside the DAW why use a plugin to add analogue modeled noise when you can have the real thing WEIGHT 4 5 ka A D CONVERTER measured under AES 1 7 CHIPSET DIGITAL REFERENCE LEVEL FREQUENCY RESPONSE CROSSTALK THD N 1 dBFS 1kHz THD N 6 dBFS 1kHz DYNAMIC RANGE PEAK LED LINEUP SIGNAL LED LINEUP DIGITAL OUTPUT ADAT 8 CHANNEL SMUX CLOCK VWORDCLOCK INPUT POVVER SUPPLY LOW NOISE SHIELDED LINEAR PSU FANLESS QU
9. HMX amp IRON colouration tools it operation 100 110 220 8 230V Glossary oy also makes a great mixing tool too Introduction BOX CONTENTS In your ASP800 packaging you should find the following items e ASP800 e Mains IEC Cable e Quick Start Guide Please visit lownloads to get the latest version of the quick start guide and this manual Watch listen to our example video content and grab useful things like a session recall sheet etc SESSION Sa Os audent me B Scene The integrated power supply in ASP8OD will accept the main line voltages found around the globe 100 110 220 8 230 Va c To configure the unit please just pull out and rotate the fuse holder to the appropriate line VIN voltage for your region Of couse please use PLEASE CHECK FUSE RATING the appropriate mains IEC cable Ske VO TAE ETON CONNECTING THE IEC amp POWERING ON THE UNIT We hope that you enjoy using ASPSOD 100 120V ke T1A SLOWBLOW 220 250V A C T500MA SLOWBLOW wherever you are and may it aid you in making great sounding music AN 80 QUICK START GUID CHANNEL MIC PRE ADC WITH HMX AND IRON Von EV1 0 audient audient HARDWARE OVERVIEW SAMPLE RATE INDICATORS 48V P
10. audio product designed for consumer use Audient Ltd has conformed where applicable to the European Union s Directive Keo 2002 95 EC on Restrictions of Hazardous Substances ROHS as well as the fiw following sections of California law which refer to RoHS namely sections 23214 10 20214 10 2 and 58012 Health and Safety Code Section 42475 2 Public Resources ures sA Sa ge ape ON G AE n p Microphone Preamplifiers amp Line Inputs ASP800 features 8 impeccably optimised Class A micprohone preamplifiers which are the same as the ASP8024 our flagship analogue console for the last 18 years Featuring a discrete 8 transistor front end and an all new 2nd gain stage the mic pre is optimised for O to 70dB gain with an EIN equivalent input noise of 127 0 dB The frontend has high input headroom and will be happy to accept any level from your microphone collection Microphone inputs are provided on the rear panel using Combi XLR connectors here the 1 4 Combi Jack connector provides a padded balanced line input input impedance gt BkQ directly into the mic pre stage attenuated by 10dB which is summed into the micpre signal path and offers a great way to integrate keyboards amp drum machines etc These Combi Jack line inputs run through the mic preamp providing a slightly sweeter tone due to the 2nd and ord harmonic THD in the mic pre and have access to POLARITY REVERSE 15dB PAD as well as HMX and IRO
11. drive amp recovery amplifiers for a very complex but subtle palette of tone The frequency response has an air boost present that is manipulated with secondary loading of the 1 1 transformer to replicate the magic of the 70 s adding the smooth zingy air to high frequencies that can add to perceived depth in the top end Combine with HMX for big tone from ASP8OD DIMENSIONS 1RU 482mm x 286 5mm x 44mm 27 DIMENSIONS 440 4mm z LA co co a 250 4mm Gi O 2 Boca o Dp SAMPLE O 88 2 O 48 cain O 44 1 PK o o 1 GAIN PK O o 1 GAIN oH DO Seo cao cao o 10 o 10 o 10 PK GAIN PK GAIN GAIN o Q 6 PK Si S 800 FY a a CO 4 MAGNETIC DRIVE T PK SIG S PK SIG a A gt S ki MOSFET DRIVE e D I TE audient 44mm MULTICHANNEL PREAMPLIFIER Ti SATURATOR ADC HARMONIC 0 SIG 48V PAD SIG 48V PAD SIG 48v PAD SIG 48V PAD SIG 48v PAD SIG 48V PAD D I e audient 482mm Weight 4 5kg 0 gam 19 MAGNETIC DRIVE O gam 19 ee BLOCK DIAGRAM gt Z Pa 2 I a o l Lu Z Z q I Oo Sa l W Z Z q I Oo 2 x da x L ml a 2 H Z Wi a k w Z A I z h m 2 Z q IL O u lt a LI Z Z q IL O CH1E CH2 RETRO CHANNELS z 6 x a
12. x 2 a a 2 T z m ol LL Z Z a G u ki t uv LU Z Z T 6 AT audient opolo ot 8 CHANNEL GROUND SENSING ANALOGUE BALANCED OUTPUTS 130 00 00 0 0 0 0 0 0 010 2530000000000001 TOTAL SYSTEM GAIN QO 70dB LINE DRIVER OdB TO A D CARD 8 CHANNEL GROUND SENSING ANALOGUE BALANCED OUTPUTS Pa audient LINE OUTPUTS 1 8 HMX MOSFET SATURATOR TOTAL SYSTEM GAIN 0 70dB IRON MAGNETIC SATURATOR OdB POLARITY REVERSE LINE DRIVER ASP800 ANALOGUE OUTPUTS TASCAM FORMAT DB25 TO A D CARD STANDARD CHANNELS SIGNAL amp PEAK METERING PRISTINE 8 CHANNEL PCM CONVERTER 8 CHANNEL SMUX ADAT OPTICAL OUTPUTS PEAK 2dBFS SIGNAL 38dBFS 1 2 3 4 5 6 7 i L ii ii Li l li lui lui li Li Z zZ Ze aid a L OO CHANN CHANN BUILT IN 116 apa DYNAMIC RANGE i W CHANN CHANN CHANN CHANN PCM4204 ADC ASP800 BLOCK DIAGRAM 23 TROUBLESHOOTING FAQ Troubleshooting e My microphones are not producing signal If required double check that phantom power is turned on via the front panel switch try swapping XLR cables then double check all connections to the recorder interface e Cannot clock the ASPSOD from an external clock source or you are experiencing clicks 6 pops Double check that you have set the clock source to external by using the front panel SAMPLE RATE switc
13. ADAT OUTPUT TO YOUR INTERFACE RECORDER Audient iD22 Clock source Audient Internal Clock Default l4ch 24bit 17 Slave Clock Operation EXTERNAL You may have a studio master clock source such that all digital devices synchronise to your session sample rate or perhaps you would like the ASPSODO to follow your DAW recorder session sample rate so that you do not have to reconfigure the unit when you flip between sessions at different sample rates In order to do this you must set the ASP800 digital card to SLAVE to an external clock source Press the SAMPLE RATE switch 1 until it is flashing green external clock mode Ensure that your master clock source IS connected via a 5Q coaxial BNC cable to the Word Clock input on ASPSOD 3 with a valid clock signal present here the green LED in the SAMPLE RATE switch should become solidly lit indicating external lock lf ASP800 Is the only or last device in the clock chain fed from the master clock go ahead and press the 75Q termination switch 2 to ensure that the clock line is loaded properly to stop any transmission line effects If using a BNC T Bar to distribute clock Signals to various devices please ensure the last device in the chain is terminated 750 audent MASTER CLOCK SOURCE 1 BNC OUTPUT to ASP800 WORD CLOCK INPUT 9 75O COAX CABLE eyo wR Cae ADAT OUT CONNECT DIGITAL OUTPUT ADAT TO YOUR DAW RECORDER 18
14. Current Alesis Digital Audio Tape Analogue to Digital Converter Audio Engineering Society AES Digital Audio Format Analogue Signal Processing Digital Audio Workstation Digital to Analogue Converter Decibel Decibel measured using an A Weighting Filter Decibel referenced to 0 77 5Vrms 0 dBu Decibel Full Scale 2 Pin DSUB Connector Analogue Tascam Format Direct Current Direct Injection Instrument Input Declaration of Conformity Equivalent Input Noise Frequently Asked Questions High Pass Filter Harmonic Saturation High Voltage Hertz cycles per second measurement unit of frequency Input Output Reference to Vintage Audio Transformer Core Material Junction Field Effect Transistor Light Emitting Diode Metal Oxide Semiconductor Field Effect Transistor O Unit of Resistance Restriction of Hazardous Substances sony Philips Digital Interconnect Format sample Multiplexing Total Harmonic Distortion Noise Tip Ring Sleeve 1 4 Jack Balanced Tip Sleeve 1 4 Jack Unbalanced Universal Serial Bus Volts Extra Live Return Extremely Low Resistance Canon X Series Latching Resilient Rubber Compound or make up your own Ohms Q Input Impedance can be varied by adjusting Z switch es
15. GATE This switch changes the converter reference level so that OdBFS 12dBu or 18dBu This feature is provided to match the input level to that of your audio interface For example if using ASPGOO with one of our own interfaces you should set it as follows ID22 Professional 18 dBu 1014 Prosumer 12 dBu 19 JETUP setting Levels amp Gain ASP800 has plenty of analogue headroom running internally on 15V DC rails The unit can deliver up to 22dBu at the analogue output DB25 on the rear of the unit Which is enough to drive most standalone A D converters into full scale overload However it would be typical in modern digital recording situations that ASP800 is using our own internal pristine 116dB ADC converters to produce a digital output for recording via the built in ADAT digital output In this case the ASP8 amp 00 has a variable digital line up reference of 18dBu or 12dBu OdBFS full scale which you can select depending upon the line up level of your Interface and whether you have the OdBFS ADC Callibration switch engaged see page 15 As a target guide we would recommend that you turn up the ASP800 gain pots to produce a 10dBFS peak signal level in your DAW when recording This will maintain plenty of headroom which often makes things sound better To do this adjust the gain knob on ASPSOO whilst observing the metering in your interface or DAW application audent r 2 ra
16. HANTOM POWER HMX ENGAGE ENGAGE POLARITY REVERSE SIGNAL PEAK METERS Sample rate switch green when using Stable regulated supply for your mics Engages Colour Stage 1 Engages Colour Stage 2 SU oe ee UREE Ag le PEAK 2dBFS SIG 38dBFS external clock source toggle through 4 internal g Pply tor y 7 in phase and as full sounding as possible MULTICHANNEL PREAMPLI HARMONIC SATURATOR aoe OC e 5 MAGNETIC DRIVE D I G ET DRIV G ka te GAIN MOSFET DRIVE DISCRETE JFET D I INPUT Sounds fantastic on guitars amp basses HMX DRIVE IRON DRIVE Sweep between SWEET and THICK Sweep between SPARKLE and GROWL li OF pea 7 ith this TRANSFORMER SON On PO on vi tones with this Class A MOSFET drive tones witn tnis SFO based drive 415dB PAD POWER INDICATOR All 8 Channels feature a PAD for WARNING increased headphone when tracking SWITCHABLE MAINS always replace with same type DB25 ANALOGUE OUTPUTS BNC WORDCLOCK INPUT MON pa eye ae Ane TET sat the mile p e ante mi MO at ADC REFERENCE CALIBRATION m F or 7 outboard gear or analogue recorders available on rear panel switch OUT OdBFS 18dBu iD22 Professional IN QdBFS 12dBu iD14 Prosumer OY otel yiis E Reer MAINS VOLTAGE A C 50 60Hz 35W y a t fy Ss LINE OUTPUTS 1 8 FI F jan a E aaa SE A O j i Y kee X A f t NE 4 230 ee DESIGNED IN ENGLAND MADE IN CHINA ozi 8 1 8 8
17. IET OPERATION INTERNAL D C POWER RAILS SWITCHABLE MAINS VOLTAGE FUSE o0 sans microphone preamplifiers Burr Brown PCM4204 24 bit PCM Selectable via Rear Panel 0 dBFS 18 dBu iD22 Professional 0 dBFS 12 dBu iD14 Prosumer 0 1 dB 20Hz to Fs 2 Nyquist lt 110 dBFS 1kHz 8 lt 90 dBFS 10kHz 0 0015 96 5 dB 0 0009 101 dB 113 5 dB un weighted 116 0 dB A weighted 2 dBFS moves with reference level 38 dBFS moves with reference level 44 1 to 96 0 kHz Internal Crystal or External Source 750 BNC switchable 75Q termination CUSTOM TRANSFORMERS 35W Maximum Consumption 15V 48 32V amp 9V 100 110 220 or 230Va c 500mA UK or 1A US Time Delay T Slow Blow Type IRON TRANSFORMER SATURATOR THD N O dBu Min Drive 1 kHz THD N O dBu Max Drive 1 kHz THD N LF B00 Hz NOISE Min Drive FREQUENCY RESPONSE WAVESHAPING 0 11 2nd amp 3rd mostly 0 006 cleans up as driver load changes Complex variance with level and frequency distorts bass content 84 dBu like a 2 tape machine 4k to 15kHz rising air boost resonance see below Symmetrical Magnetic Loop Transient Shaping amp Phase Shift IRON provides a complex variable effect with one simple control that can shift phase tighten sub frequencies slew transients and distort low frequencies with symmetrical magnetic core saturation There is also a small amount of asymmetrical saturation present in the
18. N colouration on RETRO channels 1 G 2 k ai ga le GAIN SIG 448V 2 CPL DO vid e PRI OR a NT A aa a HARDWARE FEATURES Discrete JFET D I Instrument Inputs ASP800 features two discrete Class A JFET D I inputs Channels 1 amp 2 Plugging into these jacks will automatically select the D I signal over the signals present at the rear Why JFET Junction Field Effect Transistors are known for their sweet tone and tube like properties when overdriven You will often find JFETs used in guitar pedals and such for this very reason They sound good and can provide just a touch of sweetness and larger than life tone JFETs also have a very high input impedance often approx 1017 Q and this makes them ideal for buffer circuits that do not load down the source device In the case of electric guitars or basses with vintage style passive pickups the output impedance of the instrument can often be 6 000 to 40 0000 depending upon volume and tone pot positions Typically we should provide a load that is 10 times the source to create a true bridging system Therefore we need at least a 400kQ load to get the most signal and tone from our instruments It should then come as no surprise that most classic valve guitar amplifiers have a very high input impedance 1MegQ We designed the JFET input on ASP800 to have a 1MegQ input impedance and thus match the loading effect found on classic guitar amplifiers
19. audent CHANNEL MIC PRE amp ADC as a AE ay POR Ae ine Yi en PANES SM Ap SO KAYEN WITH HMX AND IRON ao A ena este MULTICHANNEL PREAMPLIFIER HARMONIC SATURATOR ADC USER MANUAL v1 0 connect with us facebook com audient G w twitter com audientworld www audient com youtube com audienthampshire audient WELCOME amp THANK YOU CONTENTS Pe Thank you for purchasing Box Contents 1 gt a T a a this audient product Features include ASP800 Overview a ns m HM ASPGSOO is an audio powerhouse designed e 8 x Superb Class A mic preamplifiers Safety Information I a to transform your sessions into world class Lj 8 recordings making it the perfect addition to e All channels feature 15dB PADS for Declaration of Conformities So e your audio interface increased headroom when recording sl Hardware Features 8 ASP800 provides 8 channels of Audient s e All channels feature Combi XLR inputs Microphone amp Line Inputs 8 N renowned console mic preamps class with 1 4 TRS Line Inputs available Instrument Inputs 9 leading Burr Brown converter technology Input Signal Conditioning 10 two JFET D l s and two RETRO channels with e 2 x Discrete JFET instrument inputs RETRO Channels 11 revolutionary tone control HMX 12 e 2 x RETRO Channels with dual stage IRON 13 ASP800 uses a custom power toroid and colour saturation controls HMX and The Triangle of Tone 14 linear powe
20. aulty workmanship only During the warranty period audient will repair at its discretion or replace the faulty unit provided it is returned carriage paid to an authorised audient service centre We will not provide warranty repair if in our opinion the has resulted from unauthorised modification misuse negligence or accident We accept liability to repair or replace your ASPSOUD as described above We do not accept any additional liability This warranty does not affect any legal rights you may have against the person who supplied this product it is additional to those rights Warranty Limitations This warranty does not cover damage resulting from accident or misuse The warranty is void unless repairs are carried out by an authorised service centre The warranty is void if the unit has been modified other than at the manufacturer s instruction The warranty does not cover components which have a limited life and which are expected to be periodically replaced for optimal performance We do not warrant that the unit shall operate in any other way than as described in this manual Audient Ltd Aspect House Herriard Hampshire RG25 2PN Tel 44 1256 381944 United Kingdom www audient com 26 AC ADAT ADC AES ASP DAW DAC dB dBA dBu dBFS DB25 D C D I DoC EIN FAQ HPF HMX HV Hz I O IRON JFET LED MOSFET Ohm RoHS 5 PDIF SMUX THD N TRS pes USB V XLR A audient Amperes Alternating
21. ent level If you have any questions with regard to the repair please contact Audient Ltd In the event your ASP8OO needs to be repaired it is necessary to contact Audient Ltd prior to shipping and a Return Materials Authorization RMA number will be assigned This number will serve as a reference for you and helps facilitate and expedite the return process When the unit is returned please include this RMA number along with a description of the fault inside the packaging box Audient requires that shipments be pre paid for in warranty repairs we will cover the return shipping To request an RMA access technical support amp FAQs ask for troubleshooting assistance or make an enquiry please visit www audient com support AUDIENT HELP DESK WELCOME TO AUDIENT HELP DESK Thanks for visiting the Audient Help Desk We ll be adding to the Knowledge Base regularly with useful hints trouble shooting guides and FAQs You can also submit a request or send us an email at support audient zendesk com or call us in office hours 0900 1700 GMT Mon Fri on 44 0 1256 381944 Submit a request _ Ev va Ba L J litres e UT Po AA ri AN mama po TT e J HA t 1 w AL X Vit ASPOO8 25 WARRANTY audient Warranty Statement Your ASP800 comes with a manufacturer s warranty for one year 12 months from the date of despatch to the end user The warranty covers faults due to defective materials used in manufacture and f
22. fect that adds punch similar to hysteresis in magnetic tape IRON like all transformers exhibits phase shift at the audible extremes and as is the case in many of the British 1970 s classics a subtle boost in the high frequencies from 4 to 15kHz smoothly rolling off towards SOkHz which adds dimension and that sounds like a record top end IRON loves transient information FEED IT IRON uses a 1 1 custom transformer 11 HMX creates lots and lots of musical distortion Described as THD total harmonic distortion we see a fundamental signal stimulating the stage into saturation and the output adding 2nd 3rd amp 4th harmonics predominantly These are equivalent to a musical octave up an octave G a fifth and an octave amp a perfect fourth All musically related and not dissonant Therefore HMX sounds FAT MUSICAL amp LARGER THAN LIFE HNMIX also uses pre and de emphasis filtering to bump up low frequency colouration and this is part of the reason why it loves bass 803 and bass synth so much The three Class A gain stages saturate in series to provide smooth asymmetrical distortion that has been sweetened at each stage audient audient V O ri lt CASCADED MOSFET SATURATORS PRE EMPHASIS FILTER HNX Ss LO HI GAIN STAGE II DE EMPHASIS FILTER GAIN a i HMX STAGE Ill 7 OUT DOWN COMPENSATED OUTPUT LEVEL 12 VINTAGE TRANSFORMER DRIVE
23. h press it until it is flashing green This selects external clock mode and the unit is ready to accept an Incoming clock source via the BNC input From here double check your master clock Source and ensure it IS connected via a 70Q BNC coaxial cable to the ASP8UU BNC wordclock input Providing that you have a valid clock source ASP800 should sync to it without issue and the SAMPLE RATE led in the switch will turn to solid illumination This shows that the unit is locked If you experience pops amp clicks double check any master slave device configurations and cabling A system should only have one master clock audent FAQs For more information and service information support please search our online Help Centre which can be found here www audient com support Audient Home My activities Submit a request Sign in For technical support please create a ticket in our online support system Zendesk which can also be found in the Support section of our website see link above ANE audient AUDIENT HELP DESK WELCOME TO AUDIENT HELP DESK Please consult the warranty statement on page 2 7 for further information regarding service requirements and our policies 24 SERVICE Service Information ASP800 contains no user serviceable components please refer to qualified service personnel for diagnosis and repair Your warranty will be void if you tamper with the device at compon
24. owards THICK SLOW HARD PUNCHY or anywhere in between A powerful tool for both recording amp mixing via the mic line linputs a MAGNETIC DRIVE COLOURED 14 HARDWARE FEATURES OUTPUTS Analogue DB25 Line Outputs ASPGSODU features 8 analogue ground sensing line driver outputs on DB25 These fully balanced outputs use the same sense circuitry as our proven ASP amp 8024 flagship console insert sends etc and offer a simple yet elegant output stage for driving into whatever analogue destination you are feeding such as a standalone A D converter or analogue mixing console These outputs are wired as Tascam DB25 standard with lt 2000 output impedance and 22dBu maximum level ASP800 ANALOGUE OUTPUTS TASCAM FORMAT DB25 audent LINE OUTPUTS 1 8 Digital Output ADAT SMUX The digital card also provides simultaneous ADAT optical output on the rear of the unit with full 6MUX double speed capability For 44 1 or 48kHz operation a single optical cable should be connected to either ADAT ports This will provide all 8 channels on a single port and you can use both ports at the same time for redundant recording For 88 2 or 96kHz operation two optical cables should be used for full 8 channel operation with four channels carried on each O dBFS ADC Calibration mae ee ADAT OUT ne X Aa ma Q A AS S Wi ro A L 8 lt 48k 1 8 Hi Z 18dBu fe gt 88 2k 5 8 am 75 12dBu
25. r supply that provides a very low IRON Analogue Line Outputs 15 noise floor and the unit itself is completely Pe be AOU e 7 W silent due to the fanless operation e Balanced DB25 analogue line outputs d Setup 16 ou RETRO Channels 1 8 2 feature two e Clean amp stable 48V Phantom Power on Adjusting Levels amp Gain 16 i a unique variable harmonic colour controls every channel Clocking Internal 17 per channel HMX amp IRON Designed to Clocking External 18 r emulate tones often associated with 1960 s e 7OdB of clean gain split across two gain Clocking Example Systems 19 tube designs and the coveted transformer stages for increased gain bandwidth zing of British audio in the 1970 s HMX 8 specifications 21 NM IRON will add new dimension to your audio e Polarity reverse to enable phase f OAT by providing warm sparkly tones Better still coherent recording on the first two Dimensions 22 Be Z you can combine them to get anywhere in channels perfect for kick snare or m between overheads Block Diagram 23 i so Soe Just plug in your mics guitars keyboards e Integrated Burr Brown PCM4204 ADCs Trouble Shooting amp FAQ 24 ef i Sa and drum machines and you re ready to go with 116dB dynamic range and SMUX s w so GET CREATIVE and start thinking BIG ADAT outputs for 96kHz operation Service 25 JA W DANS AREER Be ASP8OO is a great recording tool but with e Fanless low noise linear PSU for global Warranty amp Contact 26 a i our new
26. re provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect power cords from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the equipment Only use attachments accessories specified by the manufacturer For products that are not rack mountable Use only with a cart stand tripod bracket or table specified by the manufacturer or sold with the equipment When a cart Is used use caution when moving the cart equipment combination to avoid injury from tip over Unplug this equipment during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the equipment has been damaged In any way Such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the equipment the equipment has been exposed to rain or moisture does not operate normally or has been dropped For products that are a mains powered device The equipment shall not be exposed to dripping or splashing and no objects filled with liquids such as vases shall be placed on the equipment DECLARATION OF CONFORMITIES HARDWARE FEATURES audient We Audient Ltd declare that the product the ASP800 to which this declaration relates is in material conformity with the appropriate CE standards and directives for an
27. the switch on the channels to find the fullest most solid low frequency representation of the source On drum kit recordings typically you may find either the kick drum out of phase with the overheads or the underneath snare mic out of phase with the top snare mic etc so move mics first and then use the polarity reverse switch to find the best compromise 10 HARDWARE FEATURES HMX uses discrete Class A MOSFET circuitry to produce smooth musical distortion HMX is an asymmetrical saturation stage reminiscent of valve saturation but has also been voiced to produce some heavy low frequency waveshaping and subtle frequency response shifts that look very similar to tape head bump 2 9dB 50Hz HMX offers very high levels of 2nd to 4th harmonic distortion and is prominent in even order harmonics for a rich larger than life sound The HMX knob allows control over the amount of distortion added but it also compensates for added level during the drive phase therefore enabling accurate A B comparison without perceived loudness bias HMX loves bass Try it out when mixing too i _ MOSFET DRIVE MAGNETIC DRIVE CHANNELS IRON uses a custom made British 1 1 6000 transformer with a discrete Class A MOSFET drive network to create symmetrical harmonic distortion reminiscent of magnetic tape distortion Using IRON MAGNETIC DRIVE provides a low frequency saturator along with a subtle transient smearing ef
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