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Since its introduction, the Alesis 3630 Compressor has become the most
popular dynamics processor ever made. The reason is easy to understand: it provides two
independent full-featured compressor/ limiters in one rack space while offering excellent
sonic quality for any application from studio recording to live sound or broadcast. The 3630
offers Ratio, Threshold, Attack and Decay controls to customize its compression response for
even the toughest signals. You can also choose between RMS and Peak compression styles, plus
Hard and Soft Knee dynamic curves for every application from subtle gain control to
in-your-face punch. As an independent dual-channel compressor, the 3630 offers separate
controls for two different source signals. Plus, two fully independent gates with threshold
and rate controls allow you to easily and efficiently stifle unwanted ambient noise. Other
advanced dynamics processing features such as precise signal metering, a sidechain for
keying or ducking effects and stereo linkable operation make the 3630 the most powerful
compressor in its class.
Specifications
(Each channel)
Input Impedance:
greater than 100k ohms, unbalanced
Max. Input Level:
10VRMS (+22dBu)
Dynamic Range:
118dB, A-weighted
Signal to Noise Ratio:
>100dB
Headroom:
18dB <0.05% @ +4dBu, A-weighted with 6dB compression, any switch setting, nominal attack and release times
Distortion:
<0.05% @ +4dBu, A-weighted with 6dB compression, any switch setting, nominal attack and release times
Threshold of Limiting:
-40dBu to +20dBu
Peak Mode Attack Time:
0.1ms - 200ms
Peak Mode Release Time:
50ms - 3S
RMS Average Mode Attack and Release Times:
Program dependent
Compression Ratio:
1:1 - :1 with selectable hard or soft compression knee
Gate Threshold:
Continuously open to 10dBu
Gate Rate Time:
20ms - 2S
Output Impedance:
470, unbalanced
Output Gain Control Range:
-20 to +20dB
Nominal Output "Zero" Level:
+4dBu or -10dBV, switchable
Indicators:
12-segment gain reduction LED display with -1 to -30dB range, 12 segment LED input/output (selectable) level display with -30 to +6dB range, Gate open/close LEDs
Additional Controls:
Stereo/dual mono link switch, bypass switch
Input Connectors:
1/4" phone jack
Output Connectors:
1/4" phone jack
Sidechain Connectors:
1/4" TRS jack
Power Requirements:
External 9 VAC Transformer, UL and CSA Approved
Dimensions:
(WxHxD) 19"x1.75"x4"
Weight:
2.6 lbs.