On Sep 22, 8:00*am, "Dave, I can't do that"
wrote:
Hi All,

I have a Panasonic SAHT670 that has worked well for quite a few years
and it kinda died. The details are in my other post here "Panasonic
Home theater unit - mods?"

I am wondering if I just buy a new stereo amplifier and use the
existing 5.1 speakers. I have
4 x 6-Ohm - 55-Watt for FR, FL, RR, RL
1 x 6-Ohm - 160-Watt Center
1 x 8-Ohm - 220-Watt Subwoofer.

So here's what I am thinking and ignoring any technical rights and
wrongs of mixing speaker impedance. {grin} I am not an audiophile and
never have the volume cranked up high.

The Stereo amp I am looking at has...
2 x 3-Ohm speaker outputs.
1 Subwoofer 1v-120K (I think it was) output.

What I would like to do is serial and parallel the 5 speakers. The FR,
RR and the FL, RL are easy, but the Center has two tweeters so it is
important for highs I am guessing, so I would like to incorporate that
too.

Leave out the center channel. I don't see how you would drive it in
phase given only two amplifiers. In terms of the driving amplifier,
the nominal impedance applies only to the piston band region of the
woofer, and only part of that. (Voice coil inductance raises driver
impedance.)

I can get a 100-Watt plate amp and attach that to the back of the
subwoofer box, so that's easy.

You can afford three channels but not four?



I looked at 5.1 amps and/or receivers and they are out of my price
range right now.

Too bad. What I have done on a tight budget is buy pro grade equipment
second-hand.