Alesis 3630 Compressor

Item # EFF3630
| Mfg # 3630COMPRESSOR
| UPC # 694318000915
Our Price: $99.99
Retail: $199.00 | You Save: 49%
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Alesis 3630
Since its introduction, the 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.

(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.

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Product Warranty Information

Tel: (401) 658-5760; Alesis Website | Product Registration | Website Contact; 1 year Parts and Labor


All instruments in our catalogs and on our shopping site carry the manufacturers' warranties against defects in parts and workmanship. Should a defect occur within the manufacturer's warranty period, contact us immediately.

We will be glad to help facilitate the repair or replacement as specified by the manufacturer. The manufacturer will determine whether the defect is covered under their warranty; we do not make that determination.

Please note: U.S.-based manufacturers WILL NOT honor warranties for items sold and shipped outside the U.S. Also, if a school, school district, or board of education purchases an instrument and resells it to an individual, the manufacturer considers the warranty to be void. Warranties are extended only to the original purchaser!

All warranties, stated or implied are held with the product manufacturer and they vary from item to item. Consult the documentation that came with your product for details in addition to the information below.
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Established in 1980, Alesis was founded on innovative semi-conductor chip technology and award winning industrial designs that allowed entry level musicians and recording artists to afford professional studio recording products that were never affordable before.