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Vincentt's avatar

Could someone walk me through every thing on the back of my amplifier?

Asked by Vincentt (7439 points ) February 22nd, 2013

Someone gave me her old amplifier (Kenwood KR-A4050), so now I’m looking into getting some speakers and a subwoofer. I have around zero knowledge of audio systems.

Preferably, I’d like to hook up four speakers and a subwoofer. However, browsing around the internet I’m starting to be afraid that I won’t be able to connect the latter. I’d like to understand more of what everything on the back of the amplifier does, so I was hoping someone could walk me through it.

The back looks like this.

So I believe the A and B rows are for connecting different sets of two speakers? And to connect a subwoofer, I’d need a line out/pre out or something? Please enlighten me.

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3 Answers

RocketGuy's avatar

It has only L and R channels. A and B are speaker sets, but A left and B left will be the same (same for A right and B right) so no surround sound. Good for sending stereo sound to e.g. 2 rooms.

You can get a subwoofer that takes high level (speaker) inputs. I use speaker set B on my system with that kind of subwoofer.

blueiiznh's avatar

Your amp support stereo. There are plenty of speaker systems that can range to low frequency audio spectrum.
BestBuy one of many
JL Audio
Bose Acoustimass

Typically match your components in cabability

muhammajelly's avatar

You can connect a subwoofer. What you need is a passive crossover like in the picture at http://en.wikipedia.org/wiki/File:Passive_Crossover.svg only you need 8 inputs and 10 outputs. The 8 inputs are Left A+ A- B+ B- and Right A+ A- B+ B-. The 10 outputs are Left A+ A- B+ B- and Right A+ A- B+ B- for high frequency and a single + – or low frequency (which you connect to the subwoofer). You could use one exactly like in the picture (they are common) but you would need 4 subwoofers or to somehow combine their outputs.

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