For monitoring I need to drive sound of multiple soundcards into one and single amp with 4 inputs and 4 outputs

No routing, input 1 goes to output 1, and so on.

My speakers (4): 15-100w 8ohm FR 90Hz-20kHz (+-3dB) 87dB

Could you recommend me a simple solution ?

Something like the unit below would be great. But it's a unit for headphones and I think it won't provide the 100w I would like to send to the speakers.

alt text


  • should be tagged soft-question
    – Sklivvz
    Dec 19, 2010 at 23:48
  • 3
    @Skliwz - What's that? Dec 20, 2010 at 6:00
  • Unfortunately all of the inexpensive rack-mount, powered mixers on the market appear to be stereo (two 100 watt channels), so you would need two units to get four channels. Dec 20, 2010 at 6:36
  • @Robert: Thanks. I've been told a simple car audio amp could do it. Regardless the impedance. So I'll try that, and if it doesn't work, I'll buy that Brad suggests below.
    – Pierre 303
    Dec 20, 2010 at 16:21
  • @neilfein: a way of tagging questions with no objective answer
    – Sklivvz
    Dec 21, 2010 at 8:03

2 Answers 2


The ART SLA4 should meet your needs. Not the cheapest amp around, but it fits in one rack unit and is of high quality.


If that is too expensive for you, just plug in whatever amps you like that aren't. You don't need to run all four channels in one amp.


I use the Behringer Eurorack RX1602. It's simple and cheap (100£) and does the job.

http://www.berhinger.com/EN/Products/RX1602.aspx alt text

  • Nice machine, but it has only 1 output (stereo). I need at least 4. And 4 inputs.
    – Pierre 303
    Dec 19, 2010 at 23:56
  • I don't understand, if you have four channels at line level, what's preventing you from plugging them in directly in the amp? How many line ins do you need to mix?
    – Sklivvz
    Dec 20, 2010 at 0:14
  • As stated in the original question: no routing. (So no mixing.)
    – Pelle ten Cate
    Dec 21, 2010 at 9:39

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