Caspian DSP
Contents
1. After disconnecting your DSP from the mains supply the cabinet and front panel may be cleaned with a lightly dampened soft cloth or chamois leather Avoid using abrasives or solvents EU DIRECTIVES ROKSAN equipment is designed to comply with the legal provisions of EU Directives 89 3336 EC and 72 23 EC The standards which have been applied are those which were in force at the time of the introduction of this product This product bears the CE mark This product is compliant to EN 60065 This product must be earthed Please ensure that other equipment connected to it is earthed according to the manufacturer s instructions Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 2 of 14 ENGLISH iea E a 5 Sc ESTOS AC MAINS SUPPLY Your Caspian DSP is set to operate from a fixed supply voltage which is marked on a label next to the mains input plug Before connecting the mains lead please check that your mains supply corresponds to this label as below 230V Products vesc eae Voltage Range 220V 240V 115V Products een eene Voltage Range 100V 120V The mains lead supplied with this product has an IEC mains socket which plugs into the IEC connector on the unit s rear panel The other end is normally attached to the appropriate mains plug for your country In the UK this is the standard UK13A plug This plug chould ordinarily not be removed from the lead If you do remove it please dispose2. Distortion 1kHz 1Volt Output 0 0396 Signal to Noise Ratio A Weighted 97dB Power Source 100V 120V 50Hz 60Hz 220V 240V 50Hz 60Hz Power Consumption lt 35W Dimension 432 x 430 x 70 W x D x H mm 432 x 430 x 80 including feet Weigth 10 Kg paea DIGITAL Manufactured under license from Dolby Laboratories Licensing Corporation Dolby Pro Logic and the double D symbol are trademarks of Dolby Laboratories Confidential Unpublished Works 1992 1997 Dolby Laboratories Inc All Rights Reserved DIGITAL SURROUND Manufactured under license from DTS Technology LLC Additionally licensed under the following US Patent 4 451 942 amp National Patent Applications derived from PCT US95 00959 Aditional US and forign patents pending DTS and DTS Digital Surround are trademarks of Digital Theater Systems Inc All rights reserved Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 14 of 14 ENGLISH
3. FL Display OONOARWN gt ROKSAN Caspian DSP Surround Sound Processor Rear Panel View ANALOGUE INPUT ANALOGUE OUTPUT eur 5 CHANNEL inpuTPfinpuTE jinru v S I CHANNEL OUTPUT REFER TO UstRMANUAL c DIGITAL INPUT l C ACI RF cont R O K S A NEZ EH THIS APPLIANCE AN SURROUND SOUND switcH Must Be ORT PROCESSOR i voi i BE Q x AUTION AC INPUT Sr SUB Sr COAXIAL l COAXIAL OPTICAL ONLY WITH SAME TYPE FU 1 23 4 5 6 789 10 11 12 13 14 15 16 17 18 19 1 Analogue Input 1 By Passed 5 1 Channel 2 Analogue Input 2 By Passed 3 Analogue Input 3 4 Analogue Input 4 5 Tape Output 6 FL amp FR Main Left and Right channel Ouputs 7 SL amp SR Left and Right Surround channel Outputs 8 Centre channel Output 9 Subwoofer Output 10 Main Centre Surround Speaker and Subwoofer LFE setting switches 11 Digital Output Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 4 of 14 ENGLISH 12 AC 3 RF Digital Input 13 Coaxial Digital Input 2 14 Coaxial Digital Input 1 15 Optical Digital Input 16 Video Switching Link Output 17 Mains Power Connector 18 Mains Power Fuse Holder 19 Mains Power Switch ROKSAN Caspian DSP Surround Sound Processor Remote Handset ROKSAN Caspian 1 Input Selector Back 1 3 2 Input Selector Forward 3 Volume Control Up 2 4 4 Volume Control Down 5 Setup Test Tone Signal 6 Setup Signal Out
4. connections interconnects Check setting on rear panel 10 Can t select desired processing mode for example DSP is in ProLogic instead of 5 1Channel Source material not compatible Source equipment not set to desired mode Disc menu not set to desired mode Not Applicable Check source menu and set mode accordingly Check disc menu and set accordingly Only stereo sound when you want surround sound Source material not encoded for surround sound Downmix selected Not Applicable Select PLG or 5 1 as appropriate Remote handset does not work Handset signal path obstructed Battery weak or wrongly inserted Handset transmission angle too wide Room lighting sunlight excessive Remove obstruction move handset Replace battery observe polarity Operate handset in front of the DSP Darken room Unit powered but no response from either the front panel or the remote handset AC Mains voltage spike surge Switch unit off at the rear panel and wait for a couple of minutes and switch it on again Hum from speakers Incorrect Grounding Check Mains polarity on all equipment Check grounding of TV Monitor etc ESAS NE CEN e Rudi There are no user serviceable parts inside your Caspian DSP If a fault should develop refer any servicing to your appointed ROKSAN retailer distributor or approved service agent Your ROKSAN Caspian DSP is guaranteed against any defect in materials and workm
5. e Master Volume To control the overall volume use the Up and Down VOLUME arrow buttons 3 4 on your Remote Handset e Mute Mute button 15 on the Remote Handset reduces the output of your Caspian DSP by approximately 30aB This feature is particularly useful when you wish to answer a call or simply have a brief conversation Additional Signal Processing Features Setup Your Caspian DSP also includes additional features that allow you to tailor your system to your specific requirements These include features such as DAC Input Level Trim Dynamic Range Compression 5 1 Channel Level Trim and Centre Surround channel Delay DAC Input Level Trim Sources connected to Analogue Inputs 3 and 4 of your Caspian DSP can have different fixed output levels which may result in substantial changes in loudness or overload the input This feature makes it possible to accommodate these level differences Your Caspian DSP allows you to Trim Set the Input Level from 0 to 12 dB in 1dB increments Simply select the desired source and then press 9 DAC on your Remote Handset and adjust the level up or down using the 7 amp 8 amp buttons of the Remote Handset Repeat this procedure for the other Input you wish to adjust Note if the overload light 8 glows red you need to reduce the input level Dynamic Range Compression Dynamic range is defined as the difference between the quietest sounds to the loudest peaks of programme material If you
6. 2 is stereo and is for connection to source equipment with only stereo output signal for example a compact disc or cassette player and connections are made as follows Right Channel R Red Left Channel L White e Analogue inputs 3 amp 4 which are stereo can also be connected to analogue sources with Pro Logic output Surround Sound coded signal for example a video cassette recorder During playback of a video with Pro Logic Surround Sound the Caspian DSP will automatically switch to Pro Logic decoding and output in Pro Logic Surround Sound mode Digital Inputs There are 4 Digital Inputs 3 with RCA Phono Sockets and 1 with Fiber Optic Toslink Socket e AC 3IRF This input is intended for connection to the RF output of your Dolby Digital DTS Laser Disc player This input has an in built RF demodulator that processes the audio signal stored on Dolby Digital DTS encoded laser discs If the laser disc has been encoded with 2 channel information you will only be able to select Dolby Pro Logic or 2 channel stereo mode for playback If however it has been encoded with 5 1 channel information your Caspain DSP will automatically switch to Dolby Digital or DTS 5 1 channel mode e Coaxial 75 Ohm There are two 75 Ohm coaxial inputs to receive digital signal from equipment such as a DVD player or DSS receiver If the source material was encoded with 2 channel information you will only be able to select Dolby Pro Logic or 2 channel stereo mode
7. If the Centre speaker is in line with the front Left and Right speakers time delay must be added to the Centre channel to move it back electronically and align the arrival time of sound from the Centre channel to coincide with that of the front Left and Right You should add 1 millisecond of time delay for every 30cm 1 ft the Centre channel speaker is closer to you than the front Left and Right speakers To adjust the Centre channel delay time select 10 DELAY on the Remote Handset on first press the Display reads Centre channel Time Delay mS then adjust using the 7 amp 8 amp buttons of the Remote Handset to set the desired time delay Centre channel time delay can be adjusted from 0 to 5 milliseconds in 1 millisecond intervals See Diagram below Surround Channel Delay Dolby Digital delivers a discrete signal for each channel and there is no need to delay the surround channels to create a precedence effect to keep the soundstage focus in front of you Sounds from the surround and front channels should arrive at approximately the same time As a result Dolby Digital material only requires a 0 to 15 milliseconds surround delay range compared to 15 to 30 milliseconds recommended for Dolby Pro Logic To adjust the delay time for the surround channels select 10 DELAY on the Remote Handset on second press the Display reads Surround channel Time Delay mS then adjust using the 7 amp 8 amp buttons of the Remote Ha
8. ROKSAN Caspian AIV Digital Surround Sound Processor USER MANUAL DIGITAL its SURROUND ROKSAN AUDIO LIMITED 6 NORTHFIELD INDUSTRIAL ESTATE BERESFORD AVENUE ALPERTON MIDDLESEX HAO 1NW ENGLAND TEL 44 0 208 900 6801 44 0 208 900 6802 FAX 44 0 208 900 0734 IN ses Congratulations on your purchase of the ROKSAN Caspian DSP A V Digital Surround Sound Processor This processor is designed and manufactured to the highest specification and rigorously tested to offer you many years of trouble free service Your Caspian DSP is at the heart of you re A V system Its correct installation set up and operation will have a profound influence on the sonic performance of the entire A V system installation Please read the contents of this manual thoroughly It will help you to understand your A V equipment better and enhance your Audio Visual experience This manual is divided into the following sections Safety Instructions Introduction Cautions Installation Processing Set up Operation Troubleshooting Guarantee Specifications UNPACKING Included in the packing of your Caspian DSP you will find e One mains lead fitted with the correct mains power plug for your country e One information pack and warranty card e DSP remote control handset and two AAA bateries After removing these items please retain all packing materials Correct packing is necessary for transportation of your Caspian DSP MAINTENANCE
9. anship for a period of two years from the date of purchase This guarantee only becomes effective if the warranty card is validated by the ROKSAN authorised retailer from whom the equipment was purchased and returned to ROKSAN within 28 days of purchase This guarantee excludes 1 Damage caused due to accident misuse neglect and incorrect installation adjustment or repair 2 Liability for damage or loss during transit from the retailer or purchaser to ROKSAN or its authorised distributor for the purposes of repair or inspection Carriage costs to ROKSAN shall be borne by the consignor All claims under this guarantee must be made through an authorised ROKSAN retailer If equipment returned for repair to ROKSAN is found on inspection to comply with the product specification ROKSAN reserves the right to make a charge for examination and return carriage Uorised servicing will void this guarantee Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 13 of 14 ENGLISH EUSCUUIDSTO ogee CU 05v pud No of Inputs 1 Analogue By passed 5 1 Channel 1 Analogue By passed 2 Analogue 1 AC 3 RF 2 Digital Coaxial 1 Digital Optical No of Outputs 1 Tape 1 Digital Coaxial 5 1 Channel FL FR C SL SR and SUB Remote Handset Yes Frequency response Front 5Hz 20kHz Surround 100Hz 20kHz Centre 100Hz 20kHz Subwoofer LFE 5Hz 100Hz Harmonic Distorsion 0 00296 By Passed 0 00596 I M
10. equency Signal Management are selected Ls Rs C SUB Low Frequency Effects LFE e Subwoofer Output OFF Bass Frequencies below 100Hz mixed with FL amp FR Channels By setting the 3 switch to OFF low frequencies below 100Hz are routed to the Main Left amp Right speakers and the subwoofer output is muted Subwoofer output ON from below 100Hz By setting the 3 switch to ON low frequencies below 100Hz from all 5 1 channels are routed to the subwoofer output Centre Channel Speaker Setting e Centre Speaker ON If using a Centre channel speaker set the 2 switch to ON Centre channel information will be processed separately and routed to the Centre channel output E Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 8 of 14 ENGLISH e Centre Speaker OFF If not using a Centre channel speaker set the 2 switch to OFF Centre channel information will be mixed to the Main Left and Right channels and signal output to the Centre channel will be muted Left and Right Surround Speaker Settings e Surround Speakers ON If using Left and Right Surround speakers set the 1 switch to ON Surround channels information will be processed separately and routed to the Left and Right Surround channel outputs SL SR e Surround Speakers OFF If not using Surround speakers set the 14 switch to OFF Surround channels information will be mixed to the Main Left and Right channels and signal out
11. esignated to drive your main L amp R speakers This output will then send the correct signal for either Surround Sound Main Speaker L amp R or just L amp R stereo listening e Centre C Connect this output to one input on your Caspian 5 channel Power Amplifier or any other Power Amplifier designated to drive the Centre channel speaker in your A V Surround Sound system e Surround SL amp SR Connect this output to two inputs on your Caspian 5 channel Power Amplifier or any other Power Amplifier designated to drive the L amp R Surround Sound Speakers Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 6 of 14 ENGLISH e Subwoofer SUB Connect this output to the designated input of a suitable Active Subwoofer for Low Frequency Effects when listening in 5 1 Channel surround sound If you are not using a subwoofer your Caspian DSP can be set to compensate for this by mixing and routing the low frequency signals to the Main L amp R speakers Digital Output Your Caspian DSP has a Coaxial Digital Output to facilitate digital recording Video Switch Output To simplify switching the output of the selected video source to the input of the TV Monitor Projector your Caspian DSP provides a video switching output that can be connected to an optional Caspian Video Switching Unit This unit will then perform the task automatically as different inputs video sources are selected on your Caspian DSP For more
12. for playback If however it was encoded with 5 1 channel information your Caspain DSP will automatically switch to Dolby Digital or DTS 5 1 channel mode e Fibre Optic Toslink This input can receive digital signal from Mini disc CD or DVD players with Toslink output option If the source material was encoded with 2 channel information you will only be able to select Dolby Pro Logic or 2 channel stereo mode for playback If however it was encoded 5 1 channel information your Caspain DSP will automatically switch to Dolby Digital or DTS 5 1 channel mode OUTPUT CONNECTIONS Audio Outputs Your Caspian DSP has 6 RCA Phono Sockets to output the 5 1 Surround Sound Audio channels and 1 Tape output 2 channel L amp R audio e Tape Output This has a fixed output level suitable for analogue recordings such as recording on to compact cassette Connect this output to the input of your Tape recorder 5 1 channel outputs These are calibrated and controlled by settings such as Level Trim Time Delay and Low Frequency Effects Depending on the type of source programme and user selection the output could vary from Dolby Digital or DTS 5 1 channel to Dolby Pro Logic or even 2 channel stereo These outputs are Main stereo channels FL amp FR Centre channel C Surround channels SL amp SR and the Subwoofer output SUB e Main FL amp FR Connect this output to two inputs on your Caspian 5 channel A V Power Amplifier or any other Power amplifier d
13. information refer to your ROKSAN Caspian retailer or appointed distributor IMPORTANT NOTE It is recommended to use high quality cables such as ROKSAN HDC 02A Analogue and HDC 01D Digital interconnects which are fitted with high quality ROKSAN connectors to ensure optimum performance of your home theatre system Analogue Digital Input Input Digital Input D Y pem ACSIRF e oo0 oo0 F e STEREO 44KHZ PCM PRO LOGIC DD DOLBY 2 0 5 1 SURR DTS AUDIO 3 2 LFE DOWNMIX STEREO DTS AUDIO 2 0 BY PASS DD DOLBY 2 0 DD DOLBY 3 2 LFE SUB FL FR FL FR FL C FR 1 C C PLG lt gt 2CH Down mix S mono SL SR 5 1 2CH Down mix Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 7 of 14 ENGLISH CAU AUR Your Caspian DSP is a high performance Digital Sound Processor that is used for Surround Sound Analogue and Digital Input Output control and Speaker settings Before operating your Caspian DSP using front panel or remote handset controls you must configure the system speaker settings This is outlined and carried out as described below Bass Management Configurations Setu Please refer to rear panel view on Page 4 You will find an array of 3 switches 10 on the rear panel of your Caspian DSP By setting these individual switches to ON or OFF different speakers and Low Fr
14. itry to automatically route and down mix the Centre Left and Right surround and Subwoofer channel information to the front Main Left amp Right channels for stereo playback Any source programme that is coded for 5 1 Channel or Pro Logic Surround Sound can be down mixed to 2 Channel Stereo from either the Remote Handset 12 2CH or the front panel 4 2CH e Pro Logic You can decode any source material encoded in Dolby Surround Lr Rr matrix into Dolby Pro Logic using this function Simply push the 5 PLG button on the front panel or the 13 PLG on the Remote Handset e 5 1 Channel Source material encoded in 5 1 Channel Dolby Digital DTS will set your Caspian DSP automatically to Dolby Digital DTS processing If the signal is down mixed to 2 channel stereo you can revert back to 5 1 Channel by simply selecting the 6 5 1 button on the front panel or the 14 5 1 on the Remote Handset Notes on Automatic and Manual Operation of the Caspian DSP Processing Modes When first switched on the DSP will revert to the last selected input setting You can only change processing modes when a source connected to your Caspian DSP is playing You can only select the Pro Logic mode with a 2 channel PCM or Dolby Surround encoded source material The 2 Channel mode is automatically selected whenever a stereo source is playing You can select the 2 Channel mode and down mix a 5 1Channel ProLogic encoded source to stereo Ord Oo Nass
15. ndset to set the desired time delay The amount of delay can be adjusted from 0 to 15 milliseconds in 5 millisecond increments i e for every 3 ft It may prove beneficial to set this delay one increment higher if the surround speakers are relatively close to the listening area For Pro Logic surround delay can be adjusted from 15 to 30 milliseconds in 5 millisecond increments Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 11 of 14 ENGLISH Subwoofer Front Right Centre 1 ft 2 1 mS Surround Left Surround Right CENTRE SURROUND CHANNEL DELAY SETTING Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 12 of 14 ENGLISH PIR OUBEESH CU TING NECK KORR Muell If you suspect that your ROKSAN Caspian DSP is not operating properly first check all connections carefully Below are some likely encountered problems with suggestions for possible cure The list is not exhaustive If you have any unresolved problems please consult your appointed ROKSAN retailer or distributor SYMPTOM LIKELY CAUSE SUGGESTED REMEDY No power AC Mains lead not inserted properly Unit not switched on at rear panel Ensure AC Mains lead is fully inserted Switch unit on at rear panel No output on one or all channels Master volume fully down Missing or bad connection bad lead Incorrect speaker settings Check volume level Check all
16. of it safely so that it cannot be plugged into a mains socket whilst in a potentially dangerous condition We suggest that you obtain from your dealer a complete replacement lead Should you move to another area where either the mains voltage or the mains plugs are different from those as supplied with your DSP please contact the appointed ROKSAN distributor for assistance Please observe correct mains polarity at all times The DSP mains fuses are located on the rear panel next to the IEC mains connector They must only be replaced by the fuse of the type and rating as described on the fuse rating label on the rear panel of the unit This product requires connection to earth ground The earth wire in the UK this is colour coded green yellow of the mains cable supplied with your DSP must be connected to a suitable earthing point established for this purpose by your electricity supply company If you are in any doubt consult a qualified electrician If the equipment is likely to be unused for some time unplug it from the mains supply GENERAL CAUTIONS FCC WARNING This equipment may generate or use Radio Frequency energy The user may lose the right to operate this equipment if unauthorised modifications are made INTERFERENCE Properly installed this unit should not cause harmful interference to radio communications There is however no guarantee that such interference will not occur in a specific installation If interference arises
17. put Level Trim 5 6 7T Setup Level Delay Down TEST TONE 8 Setup Level Delay Up d 9 Setup DAC Level 7 m 10 Setup Delay 9 ZUN I G 10 11 High Level Compression SET UP 12 2 Channel Down mix Ais ado Se By 13 Pro Logic Surround Sound 11 MSN EG 14 14 5 1 Channel Surround Sound 12 ee 13 15 30 dB Mute OPERATION 16 Power On Standby 15 16 CONNECTING MAINS POWER Please refer to rear panel view on Page 4 The moulded IEC connector of the supplied mains lead should be plugged into the socket 17 on the rear of the unit and then plugged into the mains supply The Mains power switch 19 is on the rear panel of the DSP This switch is normally left ON If the unit is likely to be unattended for a long period switch it OFF and unplug the mains lead from the mains supply INPUT CONNECTIONS Analogue Inputs There are 4 Analogue Inputs with RCA Phono Sockets and Inputs 1 2 are by passed Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 5 of 14 ENGLISH By Passed First two Analogue inputs By Pass the Digital sound processing and are only volume controlled e Analogue Input 1 is 5 1 Channel and connections are made as follows Right Channels FR SR Red Left Channels FL SL White Centre Channel C Yellow Subwoofer SUB Orange This input can be used in stereo mode by connecting the Left and Right signals from the stereo source to the FR amp FL Inputs e Analogue Input
18. put to the Surround channels will be muted SL SR NOTE Centre and Surround speakers at all times are considered SMALL and low frequencies bellow 100Hz are filtered from the Centre and Surround channel outputs Only the Main Left and Right speakers or the Subwoofer can receive low frequency information DIO es Coss ia ane Sta Please refer to the front panel view on page 4 After connection to the Mains supply switch the Caspian DSP on at the rear panel It will enter STANDBY and the STANDBY LIGHT 7 glows red Front Panel and Remote Handset Controls Operation You can control operations of your Caspian DSP from either its front panel or the Remote Handset The Remote Handset gives you complete access to all these operations while only six functions are available on the front panel Refer to front panel view on page 4 and the Remote Handset view on page 5 Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 9 of 14 ENGLISH e Standby On Switch On your Caspian DSP from either the Remote Handset 16 or the front panel 1 and the Main FL Display will light indicating Dolby Surround Sound for a few seconds and then revert to the last volume setting and selected input IMPORTANT WHEN FIRST SWITCHED ON CHECK THE DSP VOLUME SETTING e Input Selection Select your desired source from either the Remote Handset 1 2 or the front panel 2 3 e Down mix This mode instructs the decoding circu
19. rear panel will be omitted from the cycle 5 1 Channel Level Trim This feature similar to the Test Tone simply trims the level for each speaker without a test tone applied Press 6 LEVEL TRIM on your Remote Handset and each time selected it will cycle through Left Centre Right Right Surround Subwoofer and Left Surround channels Main 5 channels can be trimmed in level by 12dB the Subwoofer channel by 10dB NOTE Any channels set to OFF by the Bass Management Switch 10 on the rear panel will be omitted from the cycle IMPORTANT You should first apply Test Tone for relative loudness adjustment and then if the Maximum output level is not sufficient increase each speaker signal output by the same amount For example 3dB for each speaker as you cycle through them Centre Surround Channel Delay It is important that sound from Centre and Surround channels arrive at the same time as the Front Left amp Right channels to the listening position Ideally the speakers are placed equi distant from your listening position Generally however this may not be practical and it is compensated by electronic delay introduced to the Centre and Surround channel signals Centre Channel Delay Use a tape measure or a string to determine the distance from each speaker to your favourite listening position If the distance from the Centre speaker to your listening position is the same as the front Left and Right speakers set the time delay to 0 mS
20. which you can determine by switching the unit off and on you could try to remedy matters by the following e Re orient oor re locate the receiving antenna e Increase the distance between the DSP and receiver e Connect the unit to a different mains circuit from that of the receiver e Consult your ROKSAN appointed dealer or an experienced Radio TV technician for help and advice LOCATION Your Caspian DSP should be located in a well ventilated area and kept away from sources of heat dust and humidity and from direct sunlight The DSP may be positioned either as afree standing unit or alongside another audio video product Never place the DSP on carpet or any surface likely to hinder normal ventilation Never allow liquids or other objects to fall into the unit This unit contains no user serviceable parts Do Not remove any panels or attempt to service it yourself Unauthorised servicing will void the warranty Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 3 of 14 ENGLISH D D RM D gu ROKSAN Caspian DSP Surround Sound Processor Front Panel View 2 3 COAXIAL 1 STEREO 44 1 KHZ VOLUME 23 dB ROKSAN 4 INPUT gt Caspian 4 5 6 2 CH A V Surround Sound Processor VS Standby On Button Input Selection Backward Input Selection Forward 2 Channel Downmix Pro Logic Surround Sound 5 1 Channel Surround Sound Standby Indicator Light Overload Indicator Light Main
21. wish to listen to your system at low levels simply reducing the volume would cause the quietest passages to become inaudible The Dynamic range compression allows you to hear everything at low volume including the quietest passages This feature is especially useful for late night listening or when you want to play material at moderate levels without missing any of the programme s content Roksan Audio Itd All specifications are liable to change without notice E amp OE Page 10 of 14 ENGLISH Simply select 11 HLC on your Remote Handset and each time selected the dynamic range would cycle through OFF 25 50 and 100 compression Channel Test Tone In a properly configured home theatre system all speakers produce the same sound pressure level at the main listening position This is set up by using the Test Tone feature Press 5 TEST TONE on your Remote Handset and each time selected it will cycle through Left Centre Right Right Surround Subwoofer and Left Surround channels Ideally an SPL meter should be used to determine the sound pressure level at the listening position and for every speaker the relative level can be adjusted by pressing 7 or 8 on the remote hand set If an SPL meter is unavailable simply listen to the loudness of the Test Tone and adjust accordingly Main 5 channels can be adjusted in level by 10dB the Subwoofer channel by 10dB NOTE Any channels set to OFF by the Bass Management Switch 10 on the
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