Amp/Preamp Asylum

Mixing 4 and 8 ohm speakers

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dbphd

I drive a pair of 4 ohm KEF Reference 107/2s with a Proceed HPA-3 amp (500 watts/channel into 4 ohms, 250 into 8 ohms). I'll be adding an 8 ohm KEF R 600C center speaker. The HPA-3 is essentially 3 amps, each with its own power supply, that share a chassis. Need I have concern about mixing output impedances? Of course, I'll match levels with an SPL meter.

db

Follow Ups:

RE: Mixing 4 and 8 ohm speakers - Mr645 13:09:41 03/22/15 (0)
Should be fine. I have a Parasound 5 channel amp driving 2 8 ohm Vandersteens and a 4 ohm M&K. I use two channels for each Vandersteen and one channel for the M&K. Been working for 15 years.
RE: Mixing 4 and 8 ohm speakers - fantja 15:05:40 03/21/15 (0)
It will be fine-db.
RE: Mixing 4 and 8 ohm speakers - BCR 12:10:45 03/21/15 (0)
The center channel is a separate amp so it does not matter what the rating of the speaker hooked up to it is. Don't worry it will be fine!

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