built new towers, background hissssssss??

idqracing · 1st February 2005, 10:26 PM

Hello everyone! Ive been lurking around here for a while now and have a question or two for you all. I am currently a college student and i wanted a decent stereo for me and my roommates to enjoy so instead of just buyin something from best buy i decided to start bulding my own, this was about a year ago.

In my current towers i have Peerless csx 8" woofers, vented, with DAYTON DC28F-8 1-1/8" SILK DOME TWEETER and VIFA TC18WG-15-08 7" INFINITY WOOFER on the mids. the peerless subs are 100hz and lower, and the tweeter and mid are separated at 2.5K. I love how they sound, they get lower than i had expected but i have some dislikes about them.
when i have the volume off or nothing playing at all there is a hissing noise coming from the tweeter and from the mid it sounds like an air leak in a hose

if any one has any suggestions for me that would be great!!

pinkmouse · 1st February 2005, 10:31 PM

Sounds like a problem further up the chain, probably your amp as the hiss stays when you turn the volume down, but it could be your source. The speakers themselves will not make this noise alone.

usekgb · 1st February 2005, 10:33 PM

I'm afraid the problem isn't with your speakers. In fact, it tells me that your speakers are doing their job exactly as they are supposed to. This hiss is coming from the rest of your stereo system. This is noise that is often caused by lesser stereo components, which is being amplified by your new speakers. If you want the hiss to go away, I'm afraid you'll need to upgrade to better stereo components. Or, even better, build yourself a gainclone using brian's LM4780 board. This is a very quiet amp which makes almost no noise on it's own. If you do this and are still getting hiss, the problem is from your source components. This may mean getting a better CD/DVD player.

Welcome to the unending world of DIY and they everlasting search for better sound through DIY.

Cheers,
Zach

RJ · 2nd February 2005, 02:21 AM

I was getting hiss & hum from my amp one day. It turned out to be a corroded RCA jack. I twist and turned it on the female connector till it went away.
Next day I bought a new one.

idqracing · 2nd February 2005, 06:49 AM

thanks alot!! i kind of figured that would have been the problem. right now i dont have the money to buy a new amp/preamp, or a different reciever. is there any amps that i could build that would be in a college students price range and power them adequetly?

1st February 2005, 10:26 PM	#1
idqracing diyAudio Member Join Date: Aug 2004 Location: asdf	built new towers, background hissssssss?? Hello everyone! Ive been lurking around here for a while now and have a question or two for you all. I am currently a college student and i wanted a decent stereo for me and my roommates to enjoy so instead of just buyin something from best buy i decided to start bulding my own, this was about a year ago. In my current towers i have Peerless csx 8" woofers, vented, with DAYTON DC28F-8 1-1/8" SILK DOME TWEETER and VIFA TC18WG-15-08 7" INFINITY WOOFER on the mids. the peerless subs are 100hz and lower, and the tweeter and mid are separated at 2.5K. I love how they sound, they get lower than i had expected but i have some dislikes about them. when i have the volume off or nothing playing at all there is a hissing noise coming from the tweeter and from the mid it sounds like an air leak in a hose if any one has any suggestions for me that would be great!!

1st February 2005, 10:31 PM	#2
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Sounds like a problem further up the chain, probably your amp as the hiss stays when you turn the volume down, but it could be your source. The speakers themselves will not make this noise alone. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

1st February 2005, 10:33 PM	#3
usekgb diyAudio Member Join Date: Feb 2003 Location: Salt Lake City, UT, USA	I'm afraid the problem isn't with your speakers. In fact, it tells me that your speakers are doing their job exactly as they are supposed to. This hiss is coming from the rest of your stereo system. This is noise that is often caused by lesser stereo components, which is being amplified by your new speakers. If you want the hiss to go away, I'm afraid you'll need to upgrade to better stereo components. Or, even better, build yourself a gainclone using brian's LM4780 board. This is a very quiet amp which makes almost no noise on it's own. If you do this and are still getting hiss, the problem is from your source components. This may mean getting a better CD/DVD player. Welcome to the unending world of DIY and they everlasting search for better sound through DIY. Cheers, Zach __________________ Ahhhhhhhhh...............That's what that button does.

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2nd February 2005, 02:21 AM	#4
RJ diyAudio Member Join Date: Oct 2004	I was getting hiss & hum from my amp one day. It turned out to be a corroded RCA jack. I twist and turned it on the female connector till it went away. Next day I bought a new one.

2nd February 2005, 06:49 AM	#5
idqracing diyAudio Member Join Date: Aug 2004 Location: asdf	thanks alot!! i kind of figured that would have been the problem. right now i dont have the money to buy a new amp/preamp, or a different reciever. is there any amps that i could build that would be in a college students price range and power them adequetly?

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