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respond less to the bass, allowing it to do its job of controlling the vocals.

On the other hand, you might want to have a vocal or a drum beat
deliberately “duck” the rest of the mix for special effect. Tune the

Note that none of this external equalization is audible as such.

external

equalizer to the frequencies of the instrument you want to emphasize, then
adjust the 'COMPRESS' control so that the compressor only operates
when those frequencies are present.

5) The Stereo Width doesn't work

Is the 'ON' switch in (LED on)?

Is only one input connected?

Is the programme material mono?

6) Too much noise

Is the 'Input Gain' control too high (eg: the input signal is too small)?

Is the noise already present in the input signal? (Try removing the

input).

Is the 'Make Up Gain' control too high (eg: when lots of compression is

being used)?

Try using the GR Hold function to compensate for compressor-

accentuated noise.

7) Sounds distorted

Is the 'Input Gain' control too high?

When using the compressor, is the Release control set too low?

Is the GR Hold on with the control set too low?

1) No Power (no lights work)

Is the power supply plugged in (both ends)?

Is the mains power on?

Has a mains fuse blown?

2) The Inputs don't work

Is the source connected to the jack inputs on the back of the unit?

Is the 'Input Gain' control turned up?

3) The compressor doesn't work

Is the 'Comp' switch in (LED on)?

Is the 'Compress' control turned up enough?

Is there enough signal, as set by the 'Input Gain' control, to drive the

compressor?

Is the 'Slope' control turned up enough?

4) Too little or too much compression

Turn the 'Input Gain' control up or down respectively, to adjust the

signal level to the compressor.

Turn the 'Slope control up or down respectively.

Troubleshooting

Technical Specification

Input impedance

Line: 20kohm

Pre-amp overall gain

-6dB to +15dB

Compression ratio

1:1 to 10:1

Compressor attack time

1 msec to 100 msec
(adaptive)

Compressor release time

0.1 sec to 3 sec (adaptive)

GR Meter

8 segment bargraph

VU Meter

8 segment bargraph

Nominal output levels

+4dBu/-10dBv

Output impedance

75ohm

Output Level switch

12dB attenuation

Power supply

12V ac mains adaptor

Power consumption

12W

Mechanical

220W x 44H x 180D (overall)

Weight

1 kilo

Common mode rejection

70dB

Equivalent input noise

-95dBu (unweighted)

Distortion

0.001% (below Compressor
threshold)

Frequency response

10Hz to 70kHz (-3dB)

Maximum input before clipping

+19.5dBu

Headroom before clipping

+19.5dBu

Compression threshold

-6dBu to +22dBu (variable)

(variable)

GR Hold threshold

-10dBu to -50dBu (variable)

Stereo Width range

Mono / stereo / wide stereo
(variable)

Noise Floor

-95dBu (typical, with 0dB
Input and Make Up gain)

Содержание mc2

Страница 1: ...mp Here ON ON 12 VU GR 8 4 0 4 9 15 24 ON STEREO WIDTH GR HOLD dB 2 S 15 W 6 M 8 4 0 2 4 8 16 6 14 2 10 4 12 RELEASE COMP STEREO OPTICAL COMPRESSOR COMPRESS COMPRESS SLOPE ATTACK MAKE UP GAIN INPUT GAIN 0 3 3 2 0 1 1 sec 10 5 50 100 1 ms 3 1 10 1 1 1 5 1 2 1 4 20 9 15 10 0 4 oo dBu 30 50 10 20 40 25 dBu 8 20 0 3 16 12 5 dB PEAK 2 2 m mc 8 8 6 6 4 4 2 2 ...

Страница 2: ...77 563 6335 fax 310 323 0900 email info joemeek com UK Unit 4 Minerva Court Woodland Industrial Estate Torquay TQ2 7BD tel 44 0 1803 612700 fax 44 0 1803 612009 email info joemeek com Joemeek is manufactured and marketed under the direction of Written by Allan Bradford MSc ...

Страница 3: ...TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICINGTO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol within equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to person...

Страница 4: ...Equipment directive 2002 96 EC WEEE This directive seeks to ensure that waste electric and electronic equipment is disposed of in an environmentally responsible manner at the end of its life cycle PMI Audio Group takes seriously its obligations under this directive to take back WEEE affected products and from 13th August 2005 will mark all such products with the crossed out wheeled bin symbol Busi...

Страница 5: ...idth ON switch turns the Stereo Width function on The LED lights when active VU METER 8 Led bargraph shows the output signal level in dB at any given moment GR METER 8 Led bargraph indicates the amount of gain reduction in dB which is taking place at any given moment INPUTS Balanced line level inputs on S C INSERT unbalanced Send and Return jack allows you to patch other pieces of equipment into t...

Страница 6: ...inging it forwards This can actually improve vocals for example bringing them out in front of a mix making them sound denser more even and more confident 2 Crank Up The Volume Raising the average volume of whole mixes means they can be heard in noisy environments such as vehicles and factories Boosting the average level is what makes radio stations sound LOUD and the same technique is used on TV c...

Страница 7: ...desirable as a special effect and that is another way in which the envelope of a sound can be modified The mc2 Release is variable from 100mS up to 3 seconds giving a wide variety of effects MAKE UP GAIN sets a static amount of amplification to restore the level of the signal after compression Correctly adjusted there will be no change in perceived volume as the COMP in out switch is operated How ...

Страница 8: ... recordings where a lot of unwanted background noise is present With a signal present set the compressor to give a moderate amount of gain reduction and wait for gaps between the music or program material You should then hear the noise increase as the compressor s gain returns to the level set by the MAKE UP GAIN control Next switch on the GR Hold and repeat that section of the program Adjust the ...

Страница 9: ...ce connected to the jack inputs on the back of the unit Is the Input Gain control turned up 3 The compressor doesn t work Is the Comp switch in LED on Is the Compress control turned up enough Is there enough signal as set by the Input Gain control to drive the compressor Is the Slope control turned up enough 4 Too little or too much compression Turn the Input Gain control up or down respectively t...

Страница 10: ...vided in paragraph 1 above or continued use of the product shall constitute an unqualified acceptance of such Product and a waiver by Purchaser of all claims thereto 3 Exceptions to Limited Warranty PMI shall have no liability or obligation to Purchaser with respect to any Product subjected to abuse negligence accident modification failure of the end user to follow the operating and maintenance pr...

Страница 11: ...ER REASON WHATSOEVER Information in this User Guide is subject to change without notice No part of this User Guide may be reproduced or transmitted in any form or by any means electronic mechanical or by any other means for any purpose without the express written permission of PMIAudio Group PMIAudio Group may have trademarks copyrights or other intellectual property rights covering the subject ma...

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