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why do you have the big power amps?

87dB ain't all that. 90wpc to them would easily blow a house into the neighbouring hood.

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davidro said:
87dB ain't all that. 90wpc to them would easily blow a house into the neighbouring hood.

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Oh...maybe I take the comment too seriously but I put multi-kWs into 100dB/W/m speakers and subs and my garage is still standing. :dunno:
 
I have three 200 WPC amps -- a Dynaco ST-416 with the C-100 capacitor bank, a Dynaco ST-400, and a Heathkit AA-1640. Each of them was non-functional when I got it, and each one ended up in my basement repair shop because the price was too good to resist. I paid $100 for the ST-416 and C-100, if memory serves, and had to rebuild one channel in the amp. The other two amps were freebies, given to me by an audiophile friend who got sick of seeing them in his "tough dog" pile. They all work now, and recently I've been using the ST-400 to drive a pair of EPI M180s. With a CD player directly driving the amp, the combination sounds terrific. The amp never gets anywhere close to clipping; all it does is deliver clean power to those sweet vintage EPIs.
 
I bought a Phase Linear 700 as an experiment. I also had this idea to use it for the bottom end of a bi-amp rig if I ever want to go that route. Unfortunately I don't care for the sound of it, so its been used as a preamp stand for the last few months. Its also got pretty miserable bass response, so it may not work out for the bottom end amp either. I run a 30 watt per channel tube amp instead, and it sounds much better to me. I don't listen at much volume, so even with 1/10 the power per channel, I don't really lack for headroom, even on 88 db efficient speakers.
 
ok guys heres the scoop.talked to my brother .I have 2 choices .a Yamaha p2250 at 170 wpc into 8 ohms at .007 thd. the other one is a halfer 230 at 175 wpc into 4 ohms at .04 thd. so given these 2 choices which would you recommend.i will be using the preamp section of my Yamaha ca 1010 .I took those specs off the internet and Yamaha didn't show 4 ohm rating though it can handle it.the halfler on the other hand rates at 115 wpc for 8ohm then jumps up to 175 for 4.
 
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Six of one, half-dozen of the other.

I'd probably go with the Yamaha just because I have some Yamaha and it's good, clean stuff.

FWIW, the distortion specs between those two are immaterial if you're looking at that.
 
gadget73 said:
I bought a Phase Linear 700 as an experiment. I also had this idea to use it for the bottom end of a bi-amp rig if I ever want to go that route. Unfortunately I don't care for the sound of it, so its been used as a preamp stand for the last few months. Its also got pretty miserable bass response, so it may not work out for the bottom end amp either. I run a 30 watt per channel tube amp instead, and it sounds much better to me. I don't listen at much volume, so even with 1/10 the power per channel, I don't really lack for headroom, even on 88 db efficient speakers.
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An outfit called White Oak Audio is supposed to make these over into pretty decent sounding amps, tho I have no personal experience.

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I remember when 60 WPC was a big tube amp, and 100-125 WPC of solid state power was supposed to be all anyone would ever need at home, if that.
Just serviced a Mac MC75 and, my having taken a couple hard falls since the last go-around, was suprized how heavy it had gotten since.
I'd have to be looking at Class 'D' if I ever needed 'big' power.
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The amps 'heat sinks' double as a house heater during the winter.


If you had a BIG listening space, or Power Hungry speakers... you need power!

Regular space (home), normal 8 ohm 'Big Box' speakers: 130W RMS works just fine.

It's always nice to have More Power in reserve though. Your not limited.
 
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