Elysia alpha compressor Manuel d'utilisateur

ALPHA COMPRESSOR ALPHA COMPRESSOR

10In the middle of the unit, right below the gain reduction meters, there are three buttons to set the distinct operating modes of the alpha compresso

11Link ModeIn link mode, both channels of the alpha compressor can be coupled and operated with the con-trollers and switches of the left control pane

12Stereo CompressionIn order to get a rst impression of the sonic qualities and the control characteristics of the alpha compressor, only the contro

13BASICS – Auto FastAuto Fast (Attack)The Auto Fast function causes an automatic shortening of the attack time on fast and loud signal peaks. This e

14BASICS – Feed Forward & TransformerFeed ForwardThis function makes it possible to switch the junction of the sidechain alternatively behind

15Soft ClipGain ReductionM/S Mode ActiveChannel LinkMixGainEQ FreqHzSC GaindBSC FreqEQ GainAuto FastFeed ForwardOnAuto Fastx10OnTransformerDirectCompr

16BASICS – Sidechain FilterSidechain FilterThe sidechain lter allows frequency-dependent shaping of the compression process by giving specic frequ

17BASICS – Audio FilterAudio FilterThe audio lter is placed behind the compressor in order to avoid unwanted inuences on the detection circuit of

18BASICS – Mix ControllerSoft ClipGain ReductionM/S Mode Active Channel LinkMix GainEQ FreqHzSC GaindBSC FreqEQ GainAuto FastFeed ForwardOnAuto Fast

19Soft ClipGain ReductionM/S ModeActiveChannel LinkMixGainEQ FreqHzSC GaindBSC FreqEQ GainAuto FastFeed ForwardOnAuto Fastx10OnTransformerDirectCompre

2The manufacturer reserves the right to change the contents of this document and/or the associated products at any time without the provision o

20181,53,05,01216201,02,04,06,08,59,511147,51,01,52,01618203,04,05,06,07,58,59,5111214Soft ClipGain ReductionM/S ModeActive Channel LinkMixDir10%20306

21181,53,05,01216201,02,04,06,08,59,511147,51,01,52,01618203,04,05,06,07,58,59,5111214Soft ClipGain ReductionM/S Mode ActiveChannel LinkMixDir10%20306

22181,53,05,01216201,02,04,06,08,59,511147,51,01,52,01618203,04,05,06,07,58,59,5111214Soft ClipGain ReductionM/S Mode ActiveChannel LinkMixDir10%20306

23181,53,05,01216201,02,04,06,08,59,511147,51,01,52,01618203,04,05,06,07,58,59,5111214Soft ClipGain ReductionM/S Mode ActiveChannel LinkMixDir10%20306

24181,53,05,01216201,02,04,06,08,59,511147,51,01,52,01618203,04,05,06,07,58,59,5111214Soft ClipGain ReductionM/S ModeActive Channel LinkMixDir10%20306

25181,53,05,01216201,02,04,06,08,59,511147,51,01,52,01618203,04,05,06,07,58,59,5111214Soft ClipGain ReductionM/S Mode Active Channel LinkMixDir10%2030

26 Threshold OsetThe analog audio level of the alpha compressor depends on the studio environment it is used in. In the ma-jority of cases it depends

27REFERENCE – Attack & Auto Fast AttackAttackHere a burst signal (a sine tone that is boosted by 12 dB for a period of 100 ms) is used to demo

28ReleaseThis gure is based on a very fast attack time; the gain reduction is about -7 dB. The burst lasts for 25 ms and then follows the release ph

29Ratio FeedbackThe alpha compressor works with a soft knee characteristic with rising gain reduction values at increasing ratios. The scale on the

3WARNING: High Voltage• Risk of electric shock.• Do not open chassis.• Refer service to qualied service sta only.• Before connecting the device

30EQ Gain LowFor this measurement the center frequency was set to 1.8 kHz and the EQ gain controller was set to dierent positions between 0 and full

31EQ FrequencyThis diagram shows a variation of center frequencies with the EQ gain controller turned fully clock-wise (HI). The x10 button shifts the

32SC Low PassThis diagram shows some settings of the sidechain frequency controller (SC Freq) in low pass mode (LP). If the lter is set a

33MixThis measurement diagram shows a fade from the original to the compressed signal (direct and compressed buttons active). The gain controller was

34APPENDIX – Level ProblemsLevel ProblemsNo SignalThis problem might be caused by balanced wiring. If the signal almost completely drops when the a

35Technical DataFrequency Response: <10 Hz – 200 kHz (-0.5 dB)THD+N @ +15 dBu, 20 Hz - 22 kHz:Stereo Mode (Direct) 0.0039 %Stereo

36WarrantyConditions and limitationsThe alpha compressor is covered by a limited warranty for a period of 5 years against defects in parts and labor f

37181.53.05.01216201.02.04.06.08.59.511147.51.01.52.01618203.04.05.06.07.58.59.5111214Soft ClipGain ReductionM/S Mode Active Channel LinkMixDir10%2030

38„Let there be sound“And there was sound. (AC/DC)TCHAIKOVSKY‘S NEWS

4Dear friend of audio culture,First of all, we would like to thank you sincerely for choosing the alpha compressor as your new mastering tool. From no

5INDEXBASICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6ControlsBoth channels of the alpha compressor are absolutely identical regarding their electronic design. Therefore both sides of the front panel hav

7EQ On: activates the Niveau Filter. In the signal path, this special EQ is placed after the com-pressor section, thus it will not inuence this secti

8BASICS – ConnnectorsConnectorsMains moduleThis module combines the line cord connector, the on/o switch, the fuse holder with in-tegrated 230/115

9Getting StartedNever fear! With its many options and quite a lot of controllers the alpha compressor might look a little tricky at rst sight. In pra