Got an issue here that I can't figure out, hoping someone out here can point me in the correct direction. I own a Yamaha RX-A3030. I only use it for a preamp in a 11.2 configuration. I have separate dedicated amplifiers for each audio channel. There is NO speakers directly attached to the 3030 whatsoever, only using the preamp outs.
My issue is when listening to program audio, doesn't matter if it's a bluray, dvd, or music, when at high volume settings, sometimes as low as +4dbm, the receiver will just turn off. When it's turned back on, the volume has reset to -40dbm every time. This is obviously a protection circuit kicking in, however, since I'm not using any of the amplifiers, there isn't any logical reason I can see for the protection circuit to kick in.
I've called Yamaha, they say it due to the protection circuit being set to "electronically" listen for certain frequencies to hit certain levels, and when they do, the receiver turns off, resets the volume control to a lower limit to keep from damaging a person's ears or speakers. They don't offer any other technical advise on this. The manual states if the unit turns off during playback, turn down your volume. (duh) currently I can only get around 90-95 db out of my system, when I should be able to hit 130db (c weighted) with crystal clear audio. I was able to acheive this before with my old 3020 unit. This 3030 is nice, except this protection.
I owned a Yamaha RX 3020 previously, and didn't have this issue at all. This seems to be a new feature in the RX-A3030 only.
Has anyone seen this before? Any ideas on how to bypass this issue? Does the Yamaha CX-A5000 have this same protection circuit? I'm planning on upgrading to the a5000 if I can't get this fixed.
Any thoughts are greatly appreciated.