Axiom Home Page Forums General Discussion Advice from Axiom Owners High pitch from speakers?

While watching the LOTR trilogy last saturday, which was awesome by the way, there were some scenes that had a VERY high pitch to them. Can't really descibe it, everything still sounded clear, but in some scenes a very high pitch was in the background. I couldn't get up to see which speaker was making the noise, I know it was the mains/centre channel.

Now, would this be a cause of the DVD player or the receiver? COuld this be a bad signal via optical from the DVD player? Or is it a bad amp? Just curious, it was so loud at times that it was giving me headaches. I asked my wife about it today, she didn't recall hearing it .

I know it wasn't just me...I would just like to know what the cause is. Is there anyway for me to narrow it down?

Yes; have your wife listen to determine where the sound is coming from.

Wear earplugs?

No, really...have you tried any other DVD's? Music DVD's?

It HAS happened on other DVDs, I noticed it more on Return of the King. It happened often on ROTK, I thought mabey it was the 4ohm impedance of the centre channel being on all day long. So I turned down the volume about 5 db for ROTK, didn't seem to help. I also felt the amp on the top, it was warm to the touch, but not hot by any means. This is after a whole day of LOTR...

I might try another DVD player I have with a coaxial audio out, play the same scene I was noticing it in and see if that is the problem. I actually have a 5 year warranty return for any reason on my RX-V659. So I am going to wait until the replacement comes out next year, and take mine in for that high pitch squealing, and hopefully get a new model that has HDMI audio...

-Hutz

I see the RX-V661 is out, has HDMI 1.2a...will this support TrueHD DD from HD DVD? Also, I currently have 100 watts/channel with my centre channel being 4ohms with 2 M2's wired in parallel...the new 661 is only 90 watts/channel, will this be able to handle my 4ohm load as good as my 659?

Question about Coaxial digital cable. Can this be a regular composite cable? I have tons of those kicking around...another alternative owuld be to take the coaxial cable I am using for my sub, and switch that with a composite cable...would that work?

Thanks all!

Hutzal,

Yes, you can use any coaxial composite cable for coaxial digital audio over normal lengths--a few meters, 6 feet or a bit--with no problems.

Regards,

thanks Alan, I will try a different output from my dvd player tonite...

It certainly sounds like something is getting in the signal path, be it interference from anything from long speaker cables picking up radio frequencies, to a power supply hum which could be from virtually any component (my computer monitor has a high pitched whine similar to the one on my mother's 27" RCA tv and a friend's 17" Flatron monitor...all from the power supplies) or a faulty DAC in the dvdp.
Switching out various components should help you to isolate the problem but don't forget to have a listen to anything that is plugged in, not just the dvdp and receiver.