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ToolMod® Pro-Audio Module System

TM222 - Stereo Mastering Compressor

12

Technische Specifications

Format    

ToolMod Module Size 4U  

Versions    

TM222h - horizontal faceplate

 

 

TM222v - vertical faceplate

 

Power Supply  

Tool-Series Standard  

 

 

Supply Vo/- 25 V and + 48 V Phantom (not used in this module) 

 

 

Current Consu/- 160 mA *) 

 

 

Inputs    

balanced, grounded (electronically balanced), Stereo  

 

 

nominal Level  

 

+ 6 dBu - Gain  

 

 

maximum Level  

 

 + 30 dBu - Gain  

 

 

Input Impedance    

20 Hz - 20 kHz, > 10 k

  

 

 

nominal Source Impedance  

 50 

 

 

 

CMRR 

  

 

15 kHz > 65 dB, typical 75 dB 

 

 

 

 

 

1 kHz > 80 dB, 40 Hz > 90 dB  

Outputs    

balanced, grounded (electronically balanced), Stereo  

 

 

nominal Level  

+ 6 dBu  

 

 

maximum Level  

 + 30 dBu  

 

 

Source Impedance   20 Hz - 20 kHz, < 50 

 

 

 

Load Resistance  

 1200 

 for P

max

 +30 dBu, 

 

 

 

 

  600 

 for P

max

 + 27.5 dBu,

 

 

 

 

  300 

 for P

max

 + 22 dBu

 

 

Load Capacity 

   6 nF || 2 k

 @ 20 kHz THD = 1 %, + 30 dBu

 

 

 

 

 15 nF || 2 k

 @ 20 kHz THD = 1 %, + 26 dBu

 

 

 

 

 20 nF || 2 k

 @ 20 kHz THD = 1 %, + 22 dBu

 

 

CMRR (IEC)  

> 40 dB, 40 Hz - 15 kHz 

 

 

Gain 

  

internally calibriert to 0 dB +/- 0.3 dB without regulation,

 

 

Fill all to the left, Gain @ 0 dB

 

 

Gain control range 

 +/- 20 dB

 

 

(the Gain pot controls the output level and does not alter the compression) 

 

 

Frequency 

3 dB limits < 10 Hz to > 150 kHz  

(

without regulation) 

Response  

Power Bandwidth for Headroom 

 + 30 dBu from 10 Hz to > 50 kHz  

 

 

Linearity 

 

±

 0.2 dB without regulation from 20 Hz to 50 kHz

 

Phase Respone  

20 Hz-20 kHz < +6/-10°  

 

 

THD 

  

 + 28 dBu, 40 Hz ... 20 kHz, < 0.1 %,

 

 

max. THD @ + 30 dBu < 1 %

 

 

(without Regulation - THD under regulation is determined by the frequency,

 

 

and by the attack- and release-time settings and the actual gain reduction) 

 

Crosstalk  

 70 dB, 40 Hz ... 15 kHz  

 

 

unweighted Noise  <= -91 dBu without regulation @ 0 dB Gain

 

 

(RMS,  22Hz-22kHz, Ref: 0 dBu = 775 mV) 

weighted Noise 

 <= -95 dBA without regelation @ 0 dB Gain 

 

 

(AVG, DIN-A-Filter, Ref: 0 dBA = 775 mV @ 1 kHz)

Dynamic Range 

>= 121 dB without regulation @ 0 dB Gain, 

 

 

(relating to RMS S/N value 22Hz-22kHz)

Control Voltage

Rejection  

 70 dB  

Содержание TM222

Страница 1: ...2 Stereo Mastering Compressor comes with many additional functions to achieve high loudness gain without the typical compres sor sound The module is best suited for mastering dynamics proces sing and as master compressor for mixing The TM222 is available in horizontal and vertical versions Both ver sions are electrically identically and differ only in the lettering of the faceplate and the orienta...

Страница 2: ... Steps 2 to 5 are interim values between the two extremes Use Crest to set the basic characteristic of the compres sor In most cases the interim values 2 to 5 are the best choice The crest setting al so determines the minimum attack and release time This is only important if you se lect RMS or position 5 ATTACK determines the attack time of the compressor This pot determines the attack time of the...

Страница 3: ...itry keeps the output level constant independent of the THR Ratio and Attack setting With autogain you don t need to readjust the output gain after a set ting has been changed The AUOGAIN OFF switch disables the function The reference level for the compensation can be internally adjusted The factory standard setting is 6 dBu 4 dBV You can specify other levels with the order Autogain and gain ope r...

Страница 4: ...the compressor to modifiy the behavior of the compressor under regulation Like the audio inputs and outputs the side chain insert inputs and output are electronically balanced and have the impedances levels and headroom The side chain output signal is always present while the side chain in sert input is selected by the SIDE CHAIN INSERT switch The O P TO S C switches the signal at the side chain i...

Страница 5: ... 2 adjusting the Attack Time Now turn the Attack pot all to the right Due to the very long attack time almost no regulation takes place anymore since it simply takes to long for the compressor to re act Turn the attack pot slowly to the left until you here the compression come up again and find a setting that lets the transient pass thru without causing regulation but is fast enough to fade up the...

Страница 6: ...disappears Such a setting is absolutely necessary to increase the density and therefore the subjective impression of higher loudness However with a release time setting in that range another problem appears that limits the minimum release time With short release time settings and low frequencies the control voltage which is actually the rectified audio input signal is no dc voltage but a dc voltag...

Страница 7: ... part of the compression characteristic below the threshold and the 2 1 characteristic above threshold is no high enough to cause a big difference in the behavior 8 adding parallel Compression After trying soft knee reduce the threshold and or increase the ratio again and ad just a compression that is a little too high but take care that you make a mental note of the old setting It depends on the ...

Страница 8: ...nger attack time setting may cause higher deviations With longer attack times the output level depends on the level of the short peaks that pass the compressor without causing re gulation Therefore the resulting real gain reduction differs from the calculated value that results from the setting of threshold and ratio Without an additional dynamic cir cuit it is not possible to calculate the precis...

Страница 9: ...ent left channel 2 connect TRS OUT b EQ compartment right channel with TRS IN b Compressor compartment right channel With these connections the switch SIDE CHAIN INSERT selects the order of equalizer and compressor SIDE CHAIN INSERT not pressed EQ Compressor SIDE CHAIN INSERT pressed Compressor EQ Some notes It is not necessary that eq and compressor are installed next to each other or in the same...

Страница 10: ...feedback regulation Important Notes for Feedback Operation The control range of the Ratio pot is different with feedback regulation The maximum Ratio with the Ratio pot all to the right is 3 1 With feedback regulation the O P TO S C switch causes an internal feedback from out put to input DO NOT USE THE O P TO S C SWITCH IF YOU USE FEEDBACK REGULATION ...

Страница 11: ...ions in the 1U high and 4U high Frame The above image shows the rear panel of the of a 1U high frame If the module is in stalled in the compartments 1 and 2 the connectors are allocated as follows Input left XLR IN1a Output left XLR OUT1a Input right XLR IN2a Output right XLR OUT2a Side Chain Insert Input left TRS IN1b Side Chain Insert Output left TRS OUT1b Side Chain Insert Input right TRS IN2b ...

Страница 12: ...Bu 15 nF 2 kΩ 20 kHz THD 1 26 dBu 20 nF 2 kΩ 20 kHz THD 1 22 dBu CMRR IEC 40 dB 40 Hz 15 kHz Gain internally calibriert to 0 dB 0 3 dB without regulation Fill all to the left Gain 0 dB Gain control range 20 dB the Gain pot controls the output level and does not alter the compression Frequency 3 dB limits 10 Hz to 150 kHz without regulation Response Power Bandwidth for Headroom 30 dBu from 10 Hz to...

Страница 13: ...atio Pot LT Int long Time Integration with 0 3 sec Attack Time and adjustable Recovery Time up to 25 sec Increases the static Release Time depending on the density of the Signal Autogain automatic Gain Correction depending on the Threshold Ratio and Attack Settings active at Threshold Setting below 0 dB 6 dBu factory Standard AUTOGAIN OFF disables Autogain Side Chain Insert electronically balanced...

Страница 14: ... Conformity Manufacturer Fa Karl Juengling Type of Equipment Audio Signal Processor Product ToolMod Pro Audio Module System consisting of Modules Mounting Frames Power Supply Units and Accessories Compliance Engineer Gerd Juengling Test Basis EN50081 1 1992 EN50082 1 1992 EN61000 3 3 1995 EN60065 1993 Class1 EN61000 3 2 2000 EN60065 2002 EN55013 2001 EN55020 2002 73 23 EWG 93 68 EWG We hereby decl...

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