OK to run 4 speakers w/ Spec 4?

[SBinLilRock]

I recently aquired two sets of Klipsch Cornwalls. I was planing to power them with a spec1/spec4. I would run the speaker wire out of the spec 4 back to the spec 1, then have the two speakers set up where I can A/B/or play both at once.

My concern is when playing both at once, there will be a 4-ohm load on the amp (if my understanding is right). I think the spec 4 should be fine, but I would like some back up opinions

 

[xlbee]

So, if anyone here says "yeah, it's fine" and you hook it up that way and have a problem, you will be a very unhappy camper but it won't be their fault.

What I will say is that in the service manual, the SPEC 4 is calibrated to 200 watts per side with 4 ohm dummy resistors. Here's the thing: if the thermal compound on your output transistors has dried out or if the heat sinks are blocked or if they are covered with a layer of dust, they may not be able to shed the heat properly and you could end up with a thermal breakdown.

So, if your SPEC 4 is "up to spec", you should be fine.

Also keep in mind that the power meters on the front panel are calibrated to 8 ohms. Actual power output will be approximately double (minus internal losses) into 4 ohms.

 

[SBinLilRock]

No, I would never place blame on anyone else for my action. I just wanted opinions on if my thinking was correct--as I am by no means an expert. The spec 4 is in great condtions, and is very clean. The guy I purchased it from about a year ago had it serviced. I bought it from Dallas Vintage Audio. It has performed great so far. I've had it hooked to a pair of Klipsch RF-7 II's.