Forté 1A - buzz problem!!!

lukesound · 18th February 2009, 04:01 PM

Hello,

I have a buzz on a left channel on my Forté 1A

I have tried to detach it from the preamplifier, but the buzz remains.
The buzz is perfectly audible from my listens point.

The two channels work to the same temperature ( touching with the hand ) and I do not feel losses of balance.

Someone of you knows the reason?

Thanks

Luca

Nelson Pass · 18th February 2009, 08:35 PM

Most of the time it is a ground loop issue. Create a pair of
RCA shorting plugs and use them on the inputs. If the noise
persists, then it's the channel. If it goes away, it's a ground
loop.

lukesound · 18th February 2009, 10:29 PM

Thanks Mr. Pass,

I make the test that it indicates to me...

Regards

lukesound · 20th February 2009, 09:43 AM

Hello Mr. Pass,

I have made a test with these net filters:
http://www.systemsandmagic.com/index_file/500_en.htm

Now all good!

Probably it is only a problem of the net electrical worker of my house.

Thanks of all!

Luca

18th February 2009, 04:01 PM	#1
lukesound diyAudio Member Join Date: Feb 2008	Forté 1A - buzz problem!!! Hello, I have a buzz on a left channel on my Forté 1A I have tried to detach it from the preamplifier, but the buzz remains. The buzz is perfectly audible from my listens point. The two channels work to the same temperature ( touching with the hand ) and I do not feel losses of balance. Someone of you knows the reason? Thanks Luca

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
opamp hum and buzz problem	zeus_threat	Analog Line Level	12	31st July 2008 04:34 PM
Melos triode and computer as source: BUZZ BUZZ BUZZ	zigo3	Tubes / Valves	4	28th November 2007 02:11 AM
buzz problem please help...	hugobors	Solid State	2	21st October 2006 06:32 PM
buzz problem	adason	Tubes / Valves	5	16th February 2006 01:17 AM
problem with my forte ft-1	yanl	Pass Labs	0	13th January 2005 10:25 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

18th February 2009, 08:35 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	Most of the time it is a ground loop issue. Create a pair of RCA shorting plugs and use them on the inputs. If the noise persists, then it's the channel. If it goes away, it's a ground loop.

18th February 2009, 10:29 PM	#3
lukesound diyAudio Member Join Date: Feb 2008	Thanks Mr. Pass, I make the test that it indicates to me... Regards

20th February 2009, 09:43 AM	#4
lukesound diyAudio Member Join Date: Feb 2008	Hello Mr. Pass, I have made a test with these net filters: http://www.systemsandmagic.com/index_file/500_en.htm Now all good! Probably it is only a problem of the net electrical worker of my house. Thanks of all! Luca

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)