 
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
|
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
65.116.16.162
Ok, I'm coming to the end (or just beginning?) of my audio obsession. I've progressed over the past year from building a home theater with existing components to new components and speakers, to a small bedroom home theater (with leftover pieces), to a dedicated 2 channel system, to outboard amps for the theater. Anyway, I just purchased an Acurus A200x3 to finish off the center and rears of my theater. It had an annoying buzz, which really concerned me. I did some research, and also contacted the previous owner. Both led me to a "cheater plug". Amazing that an amp can go from an annoying buzz you can hear from the listening position, to DEAD silence with a cheater plug.
Ok, so not the OCD takes over. The Carver M-500 that runs the front L&R has an extremely low level buzz that you can hear when you bend down and put your ear to the tweeter. After reading up on the ground loop issues, I reversed the plug, and found one way is quieter than the other, but no DEAD silent. Is this something I just have to know is there, since I can't hear it from the listening position, or is there a solution? My 2 channel isn't as simple. The Carver TFM-45 amp/CT-6 pre has a buzz that is noticeable if you are close to the speaker. (ie: not bending over with your ear to the tweeter) It's a little newer than the M-500, and has a 2 pronged polarized plug that I can't reverse in the outlet. Again, any ideas to lower/eliminate the buzz? Power conditioner? All of these amps are on the same circuit (dedicated outlet for equip), but not the same outlet. My lights are on a seperate circuit. Oh, and both Carver amps were refurbed/recapped.
Any ideas or suggestions would be greatly appreciated.
Follow Ups:
I don't know if I have a problem, or corrected one. Got home at lunch and disconnected the interconnects from the amp and turned it on. I got a minor amount of hiss out of the left speaker, but a louder hiss with a little hum out of the right. I pulled the interconnects from the pre-also and then replaced both ends and twisted 360*. Fired it all back up, and it was quiet. If I put my ear next to the tweeter, I can hear the hiss, but nothing from the listening position, or while standing near the speaker. Maybe the rca jack for the right side has a loose connection inside. Once I finish the amp stand I'm working on, I'll pull the top off and take a closer look. The joys of vintage audio equipment!
I have the same problem. A power conditioner quieted the noise but didn't eliminate it. You used to be able to hear it from 6' away, now you have to put your ear up to the speaker. The remaining noise is caused by induction in one pair of my interconnects. I had a 2 meter run going to my DVD player. I found that the noise went away when the cables were unplugged from the pre-amp, regardless of whether or not the dvd player was connected at the other end. After little more investigating I noticed that the interconnects were running parallel with the BIG power cord from my line conditioner. Simply moving the interconnects away from the power cord solved the problem. In your case, since you are experiencing noise on multiple systems, I assume that the bulk of the noise you are hearing is due to dirty power, maybe a DC component in the A/C. I purchased the Monster Power HTS2600 for $300. I am not a big fan of Monster products but I didn't have a lot of money, and it worked.
| FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
||||||||||||||
This post is made possible by the generous support of people like you and our sponsors:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]