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“SIX-PACK” OPERATORS’ MANUAL

6

Auto:

When selected, Auto disables the Attack and Release controls and

continually optimises the attack and release times to suit the d

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of the material being processed. In general, this setting will produce

the least obtrusive level control on signals with widely varying

dynamics or complete mixes.

Gain:

 

The  output level may be attenuated or amplified by up to 20dB to

compensate for level changes caused by compression and limiting.

This  control comes before the Peak limiter detector and this fact

should be taken into account when setting the Peak limiter threshold.

Gain Reduction

Meter:

An eight segment LED bargraph meter continuously monitors the gain

reduction applied by the compressor/limiter over the range 0 to 30dB.

Output

Level Meter 

This is an 8 segment LED bargraph level meter that monitors the level

of the output signal over the range -20dB to +15dB.

Bypass:

 

This switch causes a 'hard-wire' bypass function of all signal

processing for this channel, where the input socket is routed directly

to the output socket. This feature enables the unit to pass audio even

with no power applied to the “Six-Pack”. Normally the switch is used

to compare the raw unprocessed signal verses with any expansion,

compression and limiting of the audio input.

When in bypass the level metre shows the unmodified input signal

coming into that particular channel.

PEAK LIMITER

Level:

Sets an absolute limit to the level that the output signal will not

be permitted to exceed. This limiter is very fast acting enabling

it to control any peaks without audible distortion. If the output

signal is so high as to cause the limiter to operate for more than

20mS, the system gain is automatically reduced to bring the

signal back within range. The system gain is then returned to

normal over a period of approximately one second. The

compressor Gain control should be used to ensure that the peak

limiter operates only rarely if at all, if it is to be used purely for

peak protection. Alternatively, it may be deliberately driven into

limiting to produce creative effects. The red LED comes on

when the limiter is active.

Содержание SIX-PACK

Страница 1: ...Y CONSIDERATIONS page 1 INTRODUCTION page 2 INSTALLATION page 2 POWER CONNECTION Page 2 AUDIO CONNECTIONS Page 3 CONTROL DESCRIPTIONS page 5 OPERATION page 8 IF A FAULT DEVELOPS page 10 CONTACTING DRAWMER page 10 TECHNICAL SPECIFICATION page 11 BLOCK DIAGRAM page 12 ...

Страница 2: ...one number copy of the original sales invoice and a detailed description of the problem Drawmer will not accept responsibility for loss or damage during transit This warranty is void if the product has been damaged by misuse modification or unauthorised repair THIS WARRANTY IS IN LIEU OF ALL WARRANTIES WHETHER ORAL OR WRITTEN EXPRESSED IMPLIED OR STATUTORY DRAWMER MAKES NO OTHER WARRANTY EITHER EX...

Страница 3: ...127 2 1991 SHEET III 250 VOLT WORKING TIME DELAY TYPE AND BODY SIZE OF 20mm x 5mm THE MAINS INPUT FUSE MUST BE RATED AT T500mA CAUTION MAINS CABLE DO NOT ATTEMPT TO CHANGE OR TAMPER WITH THE SUPPLIED MAINS CABLE CAUTION SERVICING DO NOT PERFORM ANY SERVICING REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN ...

Страница 4: ...t when the power is off Powered by a universal switch mode power supply the SixPack operates from mains voltages between 85 250v eliminating the need to make any changes when touring and allowing the unit to remain fully operational during large fluctuations in the mains power supply INSTALLATION The Six Pack is designed for standard 19 rack mounting and occupies 3U of rack space Avoid mounting th...

Страница 5: ...evels of disturbance such as found close to a TV or radio transmitter we advise that the unit is operated in a balanced configuration The screens of the signal cables should be connected to the chassis connection on the XLR connector as opposed to connecting to pin1 The Six Pack conforms to the EMC standards Ground Loops If ground loop problems are encountered never disconnect the mains earth but ...

Страница 6: ... SIX PACK OPERATORS MANUAL 4 Connecting the Six Pack to a 5 1 Surround Mixing Desk ...

Страница 7: ... be selected depending on the material being processed Percussive material with little or no reverb is generally treated using a faster release setting whereas material with slow decays or a significant amount of added reverberation will usually respond better to a longer release setting COMPRESSOR Threshold Determines the input level above which gain reduction will be applied and may be set in th...

Страница 8: ...l processing for this channel where the input socket is routed directly to the output socket This feature enables the unit to pass audio even with no power applied to the Six Pack Normally the switch is used to compare the raw unprocessed signal verses with any expansion compression and limiting of the audio input When in bypass the level metre shows the unmodified input signal coming into that pa...

Страница 9: ...left Therefore pressing link on channel 2 will link channels 1 and 2 with channel 1 being the master channel In addition pressing link on channels 2 and 3 will link channels 1 2 and 3 with channel 1 being the master All channels show Master or Linked status Channel 1 is always a master channel The following diagram shows the more commonly used linking configurations ...

Страница 10: ...ng Compressing during a mix does increase the subjective level of tape and other background noises during pauses and quiet passages but unless the noise contamination is serious the expander section will be able to attenuate it to a very high degree without compromising the wanted signal At this point the Auto control may be switched off if it is desired to set the attack and release times manuall...

Страница 11: ...he Peak Limiter Level control so that the limiter LED only lights briefly on extreme signal peaks Alternatively set the Peak limiter Level to the desired value and then adjust the compressor Gain control to ensure minimum limiter activity If required the expander may be used on its own with the compressor and limiter functions disabled The Peak limiter has no sep Level control fully clockwise will...

Страница 12: ...hone number copy of the original sales invoice and a detailed description of the problem Authorised returns should be prepaid and must be insured All Drawmer products are packaged in specially designed containers for protection If the unit is to be returned the original container must b the equipment should be packaged in substantial shock proof material capable of withstanding the handling for th...

Страница 13: ...xpander Off Wideband 22Hz 22KHz CCIR ARM IEC A Q Pk CCIR AV 90dB 95dB 95dB 97dB 84dB RMS 88dB 93dB 93dB 95dB 82dB DISTORTION 100Hz 1KHz 10KHz Unity Gain 4dBu input 0 03 0 02 0 03 14dBu input 10dB Gain Red 0 1 0 1 0 1 POWER REQUIREMENTS 115Volt or 230Volt at 50 60Hz 9 Watts FUSE RATING 32mA for 230Volt 63mA for 115Volt CONFORMING TO BS EN 60127 2 1991 SHEET III FUSE TYPE 20mm x 5mm Class 3 Slo Blo ...

Страница 14: ... SIX PACK OPERATORS MANUAL 12 BLOCK DIAGRAM ...

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