Axiom Home Page Forums General Discussion Technical Questions Connecting Hifi system to HT system

yes, the pre-amp is surplus but I already had it before. I bought the rotel stereo amp to power the m80s because my older rotel amp was busted. I liked how the rotel gear sounded together so I figured I could try and save myself from buying new speakers for now by combining the two.

I contacted Yamaha's tech support before buying the m80s and they told me that although the rx-v3800 would support 4ohm speakers, they couldnt guarantee it would work with all speakers. Takes a little longer to shut down when watching movies, but when I put in cds like "Olé by John coltrane" or Cachaito lopez (cuban bass player) it takes about 4-5 minutes before the yamaha shuts itself off.

Should have bought a Denon

Thats another story. I needed to change my yamaha rx-v1400 without "anybody" noticing

I do agree with everyone else about using the Yamaha as a pre pro with the Rotel amp, I bet it will sound great.

If you changed the setting for the speaker impendence try it back at 8ohm. If you haven't then you could always try changing it to 6 or 4. I think it is on page 33 of the manual where it says you can use 4ohm speakers... Good luck.

This is your best option.

Al, as you can tell from some of the replies, it's rather puzzling why all this is necessary. The bottom line, not going into lab tests and user reports which have been linked before, is that the 3800 has a very powerful amplifier, including output into 4ohms, and even lesser units(including Yamahas)have been driving 4ohm speakers more demanding than the M80s(which are a relatively easy 4ohm load because of above-average sensitivity and relatively flat impedance)to more than "medium" listening levels. Note what Graeme(Hay)pointed out about the impedance setting and be sure that ventilation is adequate. Also, it might be worthwhile to carefully redo the wiring to the M80s in case a loose strand might be causing an intermittant short due to sound vibrations. Of course there's also the possibility that your particular unit is defective.

Be that all as it may, although it wouldn't solve the 3800 mystery, the simplest immediate solution would be, as already suggested, to use the 3800 front channel pre-outs to drive the Rb-1070.

Thanks for all the answers guys.

I did redo all the wiring not so long ago with 10-gauge 5T00UP blue jean speaker cables. And I did set the Yamaha receiver to 4 ohms. I will try to have someone look at it, but even better I'll try and see if I couldnt try another rx-v3800 with my m80s.

I don't think you want to change the Yamaha switch to 4ohms, as your reducing its available power. Most AVR's with a 4, 6, or 8 selection switch are best left on 8, at least that is my understading from JohnK and others on this forum.

I agree with Randy--you hardly ever want to switch it to 4 ohms.