Sound Performance Lab MMC2 User's Manual
Contents
1. Audio Precision INPUT OUTPUT PHASE vs 09 20 05 11 50 46 Audio Precision INPUT OUTPUT PHASE vs 09 20 05 11 54 00 FREQUENCY FREQUENCY 30 MMC2 Channel 5 DirectPre InsertRetum to Monitor Out A 430 MMC2 Channel 6 DirectPre Insert Return to Monitor Out A 20 p 200 p 10 MIS LI KH SK 0 0 EE 10 mundi DI E DA d E d La ANN e 20 e 207 g E g E 30 30 40 40t 50F 50 60F 60 70 E 70 E 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Hz Measures phase difference between Input to DUT and Output from DUT Measures phase difference between Input to DUT and Output from DUT Optimize to see the entire range Optimize to see the entire range SPL IN OUT PHASE at2c SPL IN OUT PHASE at2c Audio Precision INPUT OUTPUT PHASE vs 09 20 05 11 56 19 Audio Precision INPUT OUTPUT PHASE vs 09 20 05 11 57 48 FREQUENCY FREQUENCY 30 MMC2 Channel 7 DirectPre Insert Return to Monitor Out A 30 MMC2 Channel 8 Direct Pre InsertRetum to Monitor Out A 20 p 205 p 10 ao EN E PEL SH 00 EH 0F pr m m noz NEM m d 5 d KC PS e 20 e 20 g E g E 30 30 40F 40F2. C Output VA NM Option Master Bay Sequence Position Da MasterBay Processor Selection Processor Processor Processor Processor Processor Processor Processor Processor Store Recall Recall Bypass The MMC2 can optionally be complemented with an automated insert box called MasterBay The MasterBay consists of an 8U insert box and a remote control panel Up to eight 8 channel processors can be connected to the insert box which is operated by the MasterBay remote panel With the MasterBay the engineer can specify up to four routings called sequences which can be stored and re called The remote panel provides a button for each of the eight external processors Depressing these in sequence switches among choices in processor signal flow Next to the buttons is a seven segment LED display indicating the current position of the processors in the sequence The mastering engineer can use this feature to compare between sequences in a varying order or to compare the same type of processors such as in the case of an equalizer from Manufacturer A and one of Manufacturer B Three memory banks are available which allow an active signal flow sequence to be compared instantly at a push of a button with three others for a total of four If the optional MasterBay is connected the MMC 2 s Insert On switch activates the MasterBay or switches it to hard bypass Rear
3. D A n TITTTTTTTTTTT TTTT i N n TITTTTTTTTTTTITTTTT N 50 100 200 500 1k 2k 5k Hz 10k 20k Frequency Response from 20k to 20 Hz F4 firstto set0 dBrat kHz The 2 Ch Ampl Function Reading meter BW is set to 10 Hz gt 500kHz so the bandwidth is the same as the Level meter Optimize for detail Pegel In Outat2c Dynamic Range Max input level Audio Precision generator limit 30 dBu THD amp Noise 24 dBu Recording Out Monitor Out Send Input impedance balanced Welwyn precision resistors transformerless Output impedance balanced CMR trimmers transformerless Dimensions Front panel Housing incl connectors H x W x D Weight Power Supply 2130 dB 30 dBu 110 dBu 108 dBu 110 dBu 20 kOhm 75 Ohm 19 inch 11U 51 6 X 48 2 X 52 cm 20 3 X 19 x 20 5 inch 35 kg 77 lb For optimal audio quality and dramatically reduced inductive disturbance interference the MMC2 s power supply is divided into two parts The external part houses a toroidal transformer the linear power supply is built into the MMC2 housing Input voltage Fuses external transformer Fuses internal power supply Power consumption Noise Dimensions ext transformer Weight ext transformer 110 120 V 60 Hz or 220 240 V 50Hz 5 AT slow 62
4. 50F sor 60F 60F 70 n 70 E 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Hz Measures phase difference between Input to DUT and Output from DUT Measures phase difference between Input to DUT and Output from DUT Optimize to see the entire range Optimize to see the entire range SPL IN OUT PHASE at2c SPL IN OUT PHASE at2c 13 Measurements INPUT OUTPUT PHASE vs FREQUENCY Audio Precision 09 20 05 14 40 05 40 MMC2 Input to Monitor Out Channel 1 8 Ap 30 X 20 A 10 0 40 50 Qoo 1 3 Spey INTO 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Measures phase difference between Input to DUT and Output from DUT Optimize to see the entire range SPL IN OUT PHASE at2c Audio Precision INPUT OUTPUT PHASE vs 09 20 05 15 06 51 FREQUENCY 307 MMC2 Input to REC Out Channel 1 8 D 25 K A 20 a LL im ine co LT 15 LESS d 10 e g 5 E RH 0 E 7 10 15 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Measures phase difference between Input to DUT and Output from DU
5. Volt PWS 2AT slow 1A 230V 1 6AQ110 120 V 100 dBu 60 V Width 15 cm 5 9 10 inch Depth 24 5 cm 24 1 2 inch Height 7 cm 2 3 4 inch 4 2 kg 9 24 lbs Specifications Power Supply Warranty SPL electronics GmbH SPL products are warranted only in the country where purchased through the authorized SPL distributor in that country against defects in material or workman ship The specific period of this limited warranty shall be that which is described to the original retail purchaser by the authorized SPL dealer or distributor at the time of purchase SPL does not however warrant its products against any and all defects 1 arising out of materials or workmanship not provided or furnished by SPL or 2 resulting from abnormal use of the product or use in violation of instructions or 3 in products repaired or serviced by other than authorized SPL repair facilities or 4 in products with removed or defaced serial numbers or 5 in components or parts or products expressly warranted by another manufacturer SPL agrees through the applicable authorized distributor to repair or replace defects covered by this limited warranty with parts or products of original or improved design at its option in each respect if the defective product is shipped prior to the end of the warranty period to the designated authorized SPL warranty repair facility in the country where purchased or to the SPL factory in Germany in the o
6. to a minimum With the MMC 2 digital sources can be connected to a digital router which outputs the selected source through the preferred DA converter This ensures that the sound quality remains comparable and is not affected by converter differences High quality analog outboard processing consistently proves itself superior to digital processing The analog concept allows for problem free integration of such analog processors Monitors and power amplifiers are almost exclusively analog in design Yet another converter at this point in the chain only degrades monitoring signal paths Furthermore DSD signals cannot be monitored on a digital monitoring that operates in PCM Technology SPL s new SUPRA operation amplifiers are used throughout the MMC2 s design They perform at an industry benchmark of 120 volts and their devel opment alone took four years The SPL SUPRA op amp achieves a signal to noise ratio of 116dB with a headroom of 34dB The dynamic range amounts to 150 dB with a frequency bandwidth of 200 kHz With such specifications the MMC2 rides comfortably beyond the require ments of either the current maximum 24 bit 192kHz PCM or 1 bit 256 fs DSD formats while a digital technology in which the MMC 2 could become a bottle neck is not foreseeable Signal Flow insert send return bal drivers and receivers 4x STEREO STEREO RECORDING INPUTS OUTPUTS balanced PHASE Bala nce T
7. EC OUT e e 5 e e e e e Please note The display output signals are REC OUT M CH es SS phase reversed 180 this does not matter in metering n n EP un n Z o 11 Measurements Audio Precision INPUT OUTPUT PHASE vs 09 20 05 11 41 11 FREQUENCY 40 MMC2 Channel 1 DirectPre InsertRetum to Monitor Out 30 E Ap 20 VaN 10 es LT mN So 1 77 ITA TT d 10 e ji g 2057 30 40E 50E 60 70 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Measures phase difference between Input to DUT and Output from DUT Optimize to see the entire range SPL IN OUT PHASE at2c Audio Precision INPUT OUTPUT PHASE vs 09 20 05 11 47 37 FREQUENCY 30 MMC2 Channel 3 Direct Pre InsertRetum to Monitor Out A 20 E p 10 A 00 el SA LU I 10 uh e 20 g i E Y 30 40 N 50E 60F 70 E 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Measures phase difference between Input to DUT and Output from DUT Optimize to see the entire range SPL IN OUT PHASE at2c 12 Audio Precision INPUT OUTPUT PHASE
8. Multichannel Mastering Console MMC2 Sources Speaker Management Monitors D Soloto LFE to Stereo Dim1 63 LJILJA IIc Vee 10 dB C Ad I Stereo Stereo Stereo im2 Return A Return B B 0 dB M CH M CH Mono Ster Mono Dim3 Input A Input B L R Operation LS RS A 30 dB M CH M CH H Return A Return B n B aa 1 M CH M CH Return Return MMC2 C Multichannel Mastering Console Insert Return _ Master Fader Fader Fader On On 5 5 6 6 7 7 s Rev Fader Fader On On 5 6 s 7 7 7 s Rev Fader Fader On On s 4 7 7 7 RS Trim On 8 Rev Fader Fader On On 5 5 5 5 6 i 6 6 7 7 7 7 s F7 Monitor Level PY Ryo Tim on Ryo m on CJ Input J C Model 2486 C Output Manual Multichannel Mastering Console MMC 2 Model 2486 Manual Manual Version 1 10 2005 R amp D Wolfgang Neumann The information in this document has been carefully verified and is assumed to be correct However Sound Performance Lab SPL reserves the right to modify the product described in this manualat any time Changes without notice This document is the property of SPL and may not be copied or reproduced in any manner in p
9. Panel XLR Wiring Metering Out 0000000 M 2 n i a o Pin Wiring XLR Inputs INPUT ST amp M CHA 0j 1 Ground 2 hot 3 cold 0000000 M S 3 dae a a o INPUT ST amp M CH B Pin Wiring XLR Outputs 1 Ground 2 hot 3 cold n 0000000 Rio Please refer to the service documentation for EDAC wiring 4 o LFE pooooooo M cH METERING OUT Mess URN D p di M B 000000000000 E x 000000000000 Ml INSERT RETURN MB iNsERT SEND 2 a 2m xm Metering Out Connector VU metering displays for the channels 1 8 can be connected to the DB25 socket on the rear panel stereo channels 1 and 2 STEREO RETURNS vu outPUTS Metering always follows selection If an input is amp o e e e e o o selected input trim On switch activated the B B m Qe 22 EI E i trimmed input signal is displayed The direct MONITORA Reo om M Select a return to display a return signal e e e e e e input signal pre input trim is displayed when B w y a Source Input button flashes press twice MONITOR B tereo S Z o Lu n a m ae lt Zu cu On channel 1 and 2 the VU Signal is routed also to the XLR pair R
10. RIM ON INSERT TRIM ON MASTER bal drivers REVERSE input switch BYPASS switch FADER ON switch receivers TRIM control switch TRIM control MASTER 2x passive 10 dB relay 10 dB FADER 2x M CH M CH RECORDING INPUTS OUTPUTS balanced bal drivers 2X STEREO RETURNS bal receiver 2x STEREO MONITOR OUTPUTS bal drivers Monitoring Speaker Management ON SOLO MONO SOLO TO CENTER L C R TO LFE STEREO M CH OPERATION 4x MONITOR SELECTION DIM MUTE 2x M CH M CH MONITOR RETURNS OUTPUTS bal receiver bal drivers Front Panel Sources M CH M CH Return A Return B M CH M CH Return C Return D Solo to Center Speaker Management pongia Operation EN MMC2 Multichannel Mastering Console Master Fader Monitor Level Model 2486 Control Elements Sources The Sources section provides selection options for several stereo and multichannel input and return sources The returns are ideally suited to select recorders DAW audio players and so on All Input buttons allow for switching
11. T Optimize to see the entire range SPL IN OUT PHASE at2c INPUT OUTPUT PHASE vs FREQUENCY Audio Precision 09 20 05 15 10 44 430 MMC2 Input to REC Out Channel 1 24 XL R 25 20 15 d 10 o g 5 0 5 15 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Measures phase difference between Input to DUT and Output from DUT Optimize to see the entire range SPL IN OUT PHASE at2c Audio Precision THD N vs AMPLITUDE 09 20 05 12 12 45 MMC 2 CHANNEL 1 8 Direct Pre InsertRetum to Monitor Out 00 Ap 40 30 20 10 0 10 20 30 dBu Cyan onlyon Green LF band Yellow LMF band Red MF band Magenta HMF band Blue HF band THD N VS AMPL 2CH at2c Measurements Audio Precision MASTER FADER GAIN FREQUENCY RESPONSE 09 21 05 09 44 19 10 MMC2 MONITOR GAIN CH 1 8L R 0 02 20 50 100 200 500 1k 2k 5k 10k 20k Hz Frequency Response from 20k to 20 Hz F4 first to set 0 dBr at kHz The 2 Ch Ampl Function Reading meter BW is set to 10 Hz gt 500kHz so the bandwidth is the same as the Level meter Optimize for detail Pegel In Outat2c Audio Precision MASTER FADER GAIN FREQUENCY RESPONSE 09 21 05 09 27 55 0 2 MMC2 MASTER FADER SET 0dB CH 1 8 E Ap 0 15E 0 17 NES 0 spa
12. art or full without the authorization of SPL Limitations of Liability In no event will SPL be liable for any damages including loss of data lost profits cost of cover or other special incidental consequential or indirect damages arising from the use of the unit however caused and on any theory of liability This limita tion will apply even if SPL or an authorized dealer has been adviced of the possibility of such damage Sound Performance Lab SPL electronics GmbH P O Box 12 27 D 41368 Niederkruechten Germany Phone 49 2163 983 40 Fax 49 2163 983 420 Email info soundperformancelab com Internet www soundperformancelab com 2005 SPL electronics GmbH All rights reserved Technical specifications and appearance are subject to change without notice Contents Fadel ssaa ear 4 aru 5 FrontPanel sano 6 Control Elements 5 m eie tein rece tes 7 Sources Input THINS aaa 7 Insert Return Speaker Management Monitors eene 8 Before you operate the unit first check carefully whether the local voltage setting corresponds to the setting on the external transformer Before switching on external transformer and MMC2 the MMC2 must be connected to the external transformer with the supplied multicore lead Pay attention to a secure connection The MMC2 and the external transformer should be situated away from heat sources and direct sunlight MMc 2 a
13. between the input monitoring mode and the output monitoring mode Press once the input button is permanently illuminated The output signal after the Master Fader is monitored Press again the Input button flashes The input signal after the input Phase Reverse switch is monitored This way you can easily compare what comes in and what goes out of the console IMPORTANT Selecting the return monitoring mode overrules input and output moni toring modes NOTE All MMC 2 buttons allow for individual labeling 7 Sources Stereo Stereo Input A Input B Stereo Stereo Return A Return B M CH M CH Input A Input B M CH M CH Return A Return B M CH M CH Return C Return D N P EN Input Trims 7 An input selected in the Source section is routed to the Input Trims section This section a aa a provides On and Phase Reverse switches a high grade ALPS potentiometer with 41 B e steps and 10dB gain range allows for input trimming a o Lio Trim on C Control Elements Insert Return a Speaker Management Solo to LFE to JL ES HE HOR Mono Stereo Mono M CH Mono L R Operation LS RS Operation Lt o Ry o La M Monitors Stereo Dim 1 A 10 dB Stereo Dim 2 B 20 dB M CH Dim 3 A 30 dB M CH B Insert Return The MMC2 offers an Insert Return point after the Input Trims to include external pr
14. ee i Y 50 100 200 500 1k 2k 5k 10k 20k Hz Frequency Response from 20k to 20 Hz F4 first to set 0 dBr at kHz The 2 Ch Ampl Function Reading meter BW is set to 10 Hz gt 500kHz so the bandwidth is the same as the Level meter Optimize for detail Pegel In Outat2c Measurements Audio Precision LFE to LCR cal to 10dB 09 26 05 15 29 10 Ap 20 17 5 15 12 5 10 7 5 5 2 5 ba N 50 100 200 500 1k 2k 5k 10k 20k Hz Frequency Response from 20k to 20 Hz F4 firstto set0 dBrat1kHz The 2 Ch Ampl Function Reading meter BW is set to 10 Hz gt 500kHz so the bandwidth is the same as the Level meter Optimize for detail Pegel In Outat2c Audio Precision MASTER FADER GAIN FREQUENCY RESPONSE 09 21 05 09 35 34 MMC2 MASTER FADER SET 0 12 6 dB CH 1 8 6 4 2 0 02 2 6 8 20 50 100 200 500 1k 2k 5k 10k 20k Hz Frequency Response from 20k to 20 Hz F4 firstto set 0 dBrat1kHz The 2 Ch Ampl Function Reading meter BW is set to 10 Hz gt 500kHz so the bandwidth is the same as the Level meter Optimi
15. nd transformer need sufficient air circu lation Avoid installation in environments exposed to vibrations dust heat cold moisture or electrical and magnetic fields Do not install the unit in proximity to power amplifiers or digital processors You may consider placing it near other analog gear Such placement can prevent interference from Word Clock MIDI etc MonitoriLeveli snai isa ie 9 Option MasterBay sissi zare 10 Rear Panel XLR Wiring Metering Out ccce 11 Measurements i 12 18 Specifications Power Supply 4 eese eee nennen 19 Warranty scali a OON EUR Erde DASS ata 20 Installation Security Advices Do not open the case You may risk severe electric shock and may damage your equipment Leave repairs and maintenance to a qualified service technician Should any objects fall inside the case unplug the power supply and contact a quali fied technician To avoid electric shock or fire hazards do not expose the unit to rain or dampness Incase of lightning unplug the power supply Never force a switch or knob Use a lint free cloth for cleaning Avoid any cleaning agents as they may damage the finish use an acid free cleaning oil instead e Support the back of the unit when it is being mounted BB Fade In Master Fader The MMC 2 multichannel mastering console completes the range of SPL 120V mastering consoles Housed in a 19 11U rack mount chassis
16. nitor Level is controlled with a custom made eight tiered potentiometer The MMC 2 does not employ DACs step ladders or VCAs for this function and the specifica tions of this potentiometer are substantially better than either of these other options ever could be the maximum tolerance is 0 5 dB over the entire control range The control range reaches from oo dB to 4 dB Master Fader This fader features the same potentiometer of the Monitor Level for dynamic mastering purposes and fine tuning the overall level from 10 dB to 80dB Each output channel must be activated by the Fader On switch in the respective Output Trim section to be controlled by the master fader With this control s extremely fine level settings the engineer can attain every ounce of recording headroom The result thanks to these controls of infinite resolution is an unparalleled excellence in dynamic mastering Output Trims The Output Trims are based on the same high quality ALPS potentiometers like in the Input section and the gain range also covers 10dB Each output can be activated or deactivated separately with the ON switch the Fader On switch routes each output to the Master Fader Control Elements Monitor Level Master Fader LEA Lio 3 40 23 3 Fader 4 On 5 6 T 8 d 9 10 qp 10 Trim On Rio 101 2 23 Fader On 4 5 6 7 8 9 10 dg 10 Trim On
17. ocessing equipment into the signal path Monitoring Monitoring functions comprise a Speaker Management section a Monitors selection section and the Monitor Level fader 1 Speaker Management Each loudspeaker can be activated or deactivated by a dedicated switch and each is labeled with its respective loudspeaker position A Solo switch is placed underneath each speaker switch To alleviate channel compar isons a Solo to Center function allows for monitoring of each channel through the center speaker The Solo to Center function can only be activated if a speaker is previ ously switched to solo If a surround sound mix does include separate LFE subwoofer signals the LFE to L C R switch distributes an LFE signal factory standard 10 dB level to the L C R channels Two Operation Mode buttons are provided to change the MMC2 configuration from stereo to multi channel operation For improved operational safety and to switch off all monitoring functions other than L R the Stereo button must be pressed before starting a stereo mastering job The Monitor section offers three mono functions 1 Mono L R 2 Mono LS RS not available in stereo mode 3 Mono Lt o Rt o not available in stereo mode 2 Monitors The Monitors section allows for selection of two stereo and two multichannel speaker sets Three different Dim levels 10 dB 20dB and 30dB and a Mute switch can be activated for the selected set Monitor Level The Mo
18. riginal packaging or a replacement supplied by SPL with all transportation costs and full insurance paid each way by the purchaser or owner All remedies and the measure of damages are limited to the above services It is possible that economic loss or injury to person or property may result from the failure of the product however even if SPL has been advised of this possibility this limited warranty does not cover any such consequential or incidental damages Some states or countries do not allow the limitations or exclusion of incidental or consequential damages so the above limitation may not apply to you Any and all warranties express or implied arising by law course of dealing course of performance usage of trade or otherwise including but not limited to implied warranties of merchantability and fitness for particular are limited to a period of 1 one year from either the date of manufacture Some states or countries do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to you This limited warranty gives you specific legal rights and you may also have other rights which vary from state to state country to country SPL electronics GmbH 41372 Niederkruechten Germany
19. the MMC2 features the same unique 120 volts rails like the MMC1 and DMC dual channel mastering console to achieve the optimum audio performance The purpose of the development was the creation of mastering consoles that would be superior in audio quality to all known and foreseeable audio formats whether analog or digital Such consoles would provide both for an unaltered reproduction of the sonic quality of high resolution playback formats like SACD and in the process remain a safe capital investment for many years The MMC2 is conceived as the center of a mastering environment to provide speaker management sources and returns connectivity input and output trimming pure analog multichannel master fader and monitor level setting As an option the MMC2 can be supplemented with the SPL MasterBay to provide an automated 8 x 8 channel insert routing of external processors Digital audio formats have undergone continuous development and change and will continue to do so With the degree of incompatibility created by the format war between PCM and DSD the need for a technology that is supe rior in dynamic range headroom and sound quality to either or any other such format is obvious and the only solution is discrete analog technology in its most advanced implementation Moreover additional prerequisites speak for the employment of high perform ance analog technology The number of necessary AD DA conversions should be reduced
20. vs 09 20 05 11 45 44 o FREQUENCY 440 MMC2 Channel 2 DirectPre Insert Return to Monitor Out 30 Ap 20 10 TT TAN 0 Il Spo an 50 100 200 500 1k 2k 5k 10k 20k Hz 50k 100k Measures phase difference between Input to DUT and Output from DUT Optimize to see the entire range SPL IN OUT PHASE at2c Audio Precision INPUT OUTPUT PHASE vs 09 20 05 11 49 20 o FREQUENCY 430 MMC2 Channel 4 Direct PreJnsert Return to Monitor Out 20 Ap 10 0 ri N e 50 100 200 500 1k 2k 5k 10k 20k Hz 50k 100k Measures phase difference between Input to DUT and Output from DUT Optimize to see the entire range SPL IN OUT PHASE at2c Measurements
21. ze for detail Pegel In Outat2c 16 Measurements Audio Precision GAIN FREQUENCY RESPONSE 09 21 05 09 19 30 Ap 20 MMC2 PRE TRIM POT CH 1 8 17 5 15 12 5 10 7 5 5 2 5 8 a e 100 200 500 1k 2k 5k 10k 20k Hz Frequency Response from 20k to 20 Hz F4 first to set 0 dBrat kHz The 2 Ch Ampl Function Reading meter BW is set to 10 Hz gt 500kHz so the bandwidth is the same as the Level meter Optimize for detail Pegel In Outat2c Audio Precision GAIN FREQUENCY RESPONSE 09 21 05 09 25 35 Ap 20 MMC2 REC TRIM POT CH 1 8 17 5 15 12 5 10 7 5 5 2 5 0 spa 2 5 x a TTT TTT TTTTTTT 8 50 100 200 500 1k 2k 5k 10k 20k Hz Frequency Response from 20k to 20 Hz F4 first to set 0 dBr at kHz The 2 Ch Ampl Function Reading meter BW is set to 10 Hz gt 500kHz so the bandwidth is the same as the Level meter Optimize for detail Pegel In Outat2c Measurements 18 Audio Precision MASTER MONITOR GAIN FREQUENCY RESPONSE ba MMC2 MONITOR GAIN CH 1 2 PAD 10 20 30dB LR 09 21 05 09 47 00 Ap
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