View User`s Manual - Acoustic Amplification
Contents
1. set to boost 12 dB or cut 12 dB frequencies at 100 Hz Controls the lowest fundamental frequencies of your bass to enhance warmth and deep full tones 4 Midrange frequency control set to boost 12 dB or cut 12 dB frequencies at 500 Hz Allows you to add thickness and body to your bass tones 5 Ahigh frequency control set to boost 12 dB or cut 12 dB frequencies at 10 kHz Adds or subtracts the high end attack of slap style sounds or picking 6 1 4 2 conductor line out jack allows you to send a live signal to a mixing console or a recording device 7 This 3 conductor 1 8 media input Jack will allow you to plug in a CD MP3 player or any other source so you can play along or rehearse To control the volume of the source adjust the output volume of the device We suggest you turn the volume all the way down then plug in and adjust the volume according to your taste 1 8 3 conductor jack for plugging in headphones When used it will disconnect the internal speaker 9 When this jewel light is lit your amp is on and ready to be played 5 www acousticamplification com AB50 USER S MANUAL FEATURES Heavy weight Cloth Grill Heavy Duty Woofer for Enhanced Bass Response High Frequency Tweeter for Clarity amp Articulation A 2 A i i n ATA MU PAN S NO eras o N UT AUI fu Vald Rugged amp Comfortable Handle Easy to Read Control Panel Protective2. AU 53125 ibm 15 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way 16 WARNING To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture 17 When a mains plug or an appliance coupler is used as the disconnect device the disconnect device shall remain readily operable acoustic EN TABLE OF CONTENTS WARRANTY gt esoo RAPERE NU mS IER EEEES RPSL SEES PI Er 2 IMPORTANT SAFETY INSTRUCTIONS 3 WELCOME xus REOR BUE alate naa she eee ama eha eee ee REUS ex 5 OUR MISSION ca essee deve sas ee see e ACE EE ee 5 TAKING CARE OF YOUR BASS AMPLIFIER 5 FRONT PANEEL n a xu a ie qe CoG 6 FEATURES ust ae eua due aa ua eu ae uue set 7 SPECIFICATIONS 42422054 ori at alakeha de eee eee ae 8 SIGNAL FLOW DIAGRAM ne na IRR RR nn 8 l www acousticamplification com REA 5 ARE a 1 py a i x 5 m A af Lats fl Hu Dual A WELCOME AND CONGRATULATIONS Congratulations on your purchase of the AB5O the first amplifier designed specifically for acoustic electric bass guitars Founded as the Acoustic Control Corporation in Van Nuys California in 1969 Acoustic has been the rig of choice for many legendary touring professionals Users include some of music s premier rock jazz and fu
3. Long Lasting Covering e CA Power Switch Fuse Holder amp Power Cord Socket acoustic mm Model AB50 Output Power 50W 8 ohm 500mW 32 ohm Frequency Response 20 20KHz Total Harmonic Distortion 1 0096 0 0596 Hum and Noise 60 dBV 55 dBV Input Impedance 10K ohms Input Levels 10 dBV All measurements made at 1 kHz 10 dBV EQ controls flat and volumes Max 0 dBV Tone controls EQ Centers 60 Hz 800 Hz 10 kHz AC Power Requirements 80W 7W 15 5 Deep 15 5 Wide 16 Tall including feet 39 37cm Deep 39 37cm Wide 40 64cm Tall including feet 33 Ibs 15 Kg 1 x 10 250mm Woofer 1 x 2 51mm Tweeter SIGNAL FLOW DIAGRAM INPUTS left mono TIP Dimensions English Dimensions Metric Weight Lbs Metric Speakers i DRUM VOLUME SLEEVE E conditioner sieeve Tweeter i 1 E Crossover Lo ja H AUX VOLUME Speaker TIP L Preamp RING R conditioner TY T right TIP SLEEVE Power Amp 50 Watt Limiter Conditioner 3 Band EQ LINE IN NOTE Headphone jack Headphones 1 8 output 1 8 input i turns off speakers TIP L i when used TIP L Headphone TIP SWITCH RING R RING R Amp y SLEEVE LI x SLEEVE www acousticamplification com Accoustic Electric Bass Amp Output to speakers Output to headphones Actual response is tailored for acoustic bass A
4. SE NOISE OVER TIME The U S Government s Occupational Safety and Health Administration OSHA has specified the following permissible noise level exposures DURATION PER DAY HOURS 8 6 1 2hr or less SOUND LEVEL dB 97 100 103 This symbol is intended to alert the user to the presence of CAUTION n air RISK OF ELECTRIC SHOCK non insulated dangerous voltage within the products enclosure DONDT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO This symbol is intended to alert the user to the presence of important NOT REMOVE CHASSIS NO USER SERVICEABLE operating and maintenance servicing instructions in the literature PARTS INSIDE REFER SERVICING TO QUALIFIED accompanying the unit SERVICE PERSONNEL According to OSHA any exposure in the above permissible limits could result in some hearing loss Hearing protection must be worn when operating this amplification system in order to prevent permanent hearing loss Apparatus shall not be exposed to dripping or splashing Objects filled with liquids such as vases shall not be placed on the apparatus Read all safety and operating instructions before using this product All safety and operating instructions should be kept for future reference Read and understand all warnings listed on the operating instructions Follow all operating instructions to operate this product This product should not be used near water i e bathtub sink swimming pool wet
5. acoustic AB50 USER S MANUAL 30 WATT ACOUSTIC ELECTRIC BASS AMP acoustic FCC Statements 1 Caution Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment 2 Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures eReorient or relocate the receiving antenna eIncrease the separation between the equipment and receiver eConnect the equipment into an outlet on a circuit different from that to which the receiver is connected eConsult the dealer or an experienced radio TV technician for help Three 3 Year Limited Warranty Subject to the limitations set forth below Acoustic amp hereby represents and warra
6. basement etc Only use dry cloth to clean this product Xe E dee Me c qn c3 Do not block any ventilation openings it should not be placed flat against a wall or placed in a built in enclosure that will impede the flow of cooling air 8 Do not install this product near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 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 are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Do not break the ground pin of the power supply cord 11 Only use attachments specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used exercise caution when moving 13 Unplug this apparatus during lightning storms or when unused for a long period of time 14 Care should be taken so that objects do not fall and liquids are not spilled into the unit through the ventilation ports or any other openings L
7. ge turn off the AB50 s power switch and all related devices prior to connecting or disconnecting cables HANDLING AND TRANSPORT e Never apply excessive force to any parts e Unplug cables by gripping plugs firmly Do not pull on cables e Physical shocks caused by dropping or bumping can result in serious damage CLEANING e Clean with a dry soft cloth A slightly damp cloth may be used to remove stubborn grime and dirt e Never use cleaners such as alcohol or thinner ELECTRICAL INTERFERENCE e The AB50 contains electronic circuitry that may cause interference if placed too close to radio or television receivers If this occurs move the AB50 further away from the affected equipment SERVICE AND MODIFICATION e There are no user serviceable parts in the 50 e Do not attempt to open the AB50 or make any change to circuits or parts This will void the warranty acoustic FRONT PANEL CHANNEL 1 CHANNEL 2 CHANNEL 1 CHANNEL 2 MID HIGH LINE OUT gt s LINE HEAD KN 1 L IN PHONES DAN E pos AYAV Nm S Nm S O INPUT INPUT votume f eouALIzATION 1 acoustic AB50 0 0 0900 Combo 1 4 2 conductor dual bass inputs with integrated XLR mic jacks 2 Channel volume level control If you are using a bass guitar with an on board preamp set its level to mid position before increasing these controls otherwise distortion may occur 3 Active low frequency control
8. nk bassists and many of the original Acoustic rigs are still cranking out massive tone on stages world wide Now you own a piece of the Acoustic legacy so turn it up and enjoy what pros have known about for years Welcome to Acoustic the Pro s Tone OUR MISSION The Acoustic design philosophy is simple It s simple to operate simple to maintain and its Fast Tone technology allows you to dial up great sound in an instant This way of thinking is part of every amp we make That s why many legendary bassists worldwide have used Acoustic to develop their trademark sounds If you re new to Acoustic amps we encourage you to get in tune with its rich heritage and join the long line of Acoustic users and endorsers who would never consider playing through anything else TAKING CARE OF YOUR BASS AMPLIFIER LOCATION e To avoid deformation discoloration or more serious damage do not expose the unit to direct sunlight high temperature sources or excessive humidity POWER SUPPLY e Turn the power switch off when the 50 is not in use e The AC adapter should be unplugged from the AC outlet if the AB50 will not be used for an extended period of time e Avoid plugging the AC adapter into an AC outlet that is also powering high consumption appliances such as electric heaters or televisions Also avoid using multi plug adapters since these can reduce sound quality cause operation errors and result in possible damage e To avoid dama
9. nts that the components of this product shall be free from defects in workmanship and materials including implied warranties of merchantability or fitness for a particular purpose subject to normal use and service for three 3 years to the original owner from the date of purchase Retailer and manufacturer shall not be liable for damages based upon inconvenience loss of use of product loss of time interrupted operation or commercial loss or any other incidental or consequential damages including but not limited to lost profits downtime goodwill damage to or replacement of equipment and property and any costs of recovering reprogramming or reproducing any program or data stored in equipment that is used with Acoustic products This guarantee gives you specific legal rights You may have other legal rights which vary from state to state Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you Acoustic P O Box 5111 Thousand Oaks CA 91359 5111 All trademarks and registered trademarks mentioned herein are recognized as the property of their respective holders 0807 8010 2 www acousticamplification com TT ACOUSTIC ELI _ USER S MANUA IMPORTANT SAFETY INSTRUCTIONS EXPOSURE TO HIGH NOISE LEVELS MAY CAUSE PERMANENT HEARING LOSS INDIVIDUALS VARY CONSIDERABLY TO NOISE INDUCED HEARING LOSS BUT NEARLY EVERYONE WILL LOSE SOME HEARING IF EXPOSED TO SUFFICIENTLY INTEN
10. t full output nominal All controls down All controls at 12 o clock All Inputs Acoustic electric bass inputs to achieve full output Aux to achieve full output Line In to achieve full output 3 band 12 dBV At full output At idle
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