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Alesis 3630 Compressor RMS/Peak Dual Channel Compressor/Limiter with Gate

Alesis

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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.