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Hissing sound coming from tweeters

Right now I'm experiencing a hissing noise coming from the tweeters on my Klipsch RF7II's, and can't figure out what is causing the noise. It's almost like a white noise that is there when the amplifiers are powered on and is not affected by changes in volume.

My system consists of an Oppo BDP-83 blu-ray player, Ayre K-5xe preamp, and two Emotiva UPA-1 mono blocks. My cables are Audioquest King Cobra and Audioquest Emeralds. I would greatly appreciate any help resolving this problem. The hissing sound is very annoying. Thanks.
cfaille
cfaille OP
23 posts
 
Thanks for all the helpful information. I'm at work right now, but when I get home tonight I will disconnect the amps from the pre-amp to determine if this is just a noise floor issue. I understand that the Ayre pre-amp might not pair well with the cheap Emotivas, or maybe the Emotivas have too much gain for my sensitive Klipsch speakers. Once the music is on you dont hear the hiss and it sounds amazing. The hiss is most annoying when you're trying to watch a blu-ray during a quiet scene.

@Herman: In this hobby you can't always afford to buy all the nice gear in one purchase. I just picked up the Ayre and will be looking to upgrade my mono amps in the future. I am 25 years old and my system is a work in progress.
herman
1,974 posts
 
.

Yes sir, pay as you go. It wasn't a criticism, it was a suggestions. Sorry if it came off any other way.

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cfaille OP
23 posts
 
No worries Herman, I appreciate the suggestions and didn't take it as criticism. What kind of amps would you recommend to go with highly sensitive speakers? I probably couldn't go wrong with an Ayre power amp to match my pre-amp, but I'm open to other suggestions.
herman
1,974 posts
 
,

Since you asked......

An SET amp is in my opinion the only amp to pair with them. Bottlehead is a great value if you can solder and follow directions, and you can easily learn to solder. There is a used pair of monoblocks for sale here now (no affiliation)

http://www.audiogon.com/cgi-bin/cls.pl?ampstube&1327718278&/Bottlehead-Paraglow-II-2A3-cus

http://www.bottlehead.com/store.php?crn=44

If it were me I would have put my money in a nice amp first and used a cheap passive pre until I could afford a better preamp. You just might find you really don't need an active preamp.

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cfaille OP
23 posts
 
I was originally using a Marantz 2270 as a pre-amp, but began having some serious problems with it after it was "refurbished". I demoed a couple pre-amps, one was the Ayre K-5xe and the other was an NAD C326BEE. The difference between the two was night and day so I picked up the Ayre on Audiogon (the hi-fi store wanted $2,800 + 9.8% sales tax for a demo model).

I would have to hear the Bottleheads and see if I like them. I have always liked the sound of Mcintosh amps, but they are out of my price range for now.
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