In Reply to: Re: Cary 300 SEI with HUM in Noise Floor posted by Paul Joppa on March 9, 2007 at 18:31:45:
It is not ground loop type hum - no CATV anywhere in sight. It is an "audible buzzing" sound in the noise floor which is always there (either usig headphones or monitors). I've adjusted bias - no luck. So, if not tubes, bias, or transformer - then may be as you say. How do I measure for hum voltage across output terminals? I would have thought Cary could have done this while the amp was with them - they simply deny it's a problem = very frustrating!
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Follow Ups
- Re: Cary 300 SEI with HUM in Noise Floor - daleda 18:55:33 03/09/07 (11)
- Re: Cary 300 SEI with HUM in Noise Floor - Paul Joppa 23:32:33 03/09/07 (10)
- Re: Cary 300 SEI with HUM in Noise Floor - daleda 07:58:49 03/10/07 (9)
- Re: Cary 300 SEI with HUM in Noise Floor - Sherlock 09:47:44 03/10/07 (8)
- Re: Cary 300 SEI with HUM in Noise Floor - daleda 13:11:11 03/10/07 (7)
- Re: Cary 300 SEI with HUM in Noise Floor - Sherlock 10:17:18 03/11/07 (0)
- Re: Cary 300 SEI with HUM in Noise Floor - recstar24 22:28:41 03/10/07 (5)
- Re: Cary 300 SEI with HUM in Noise Floor - Paul Joppa 15:12:07 03/11/07 (2)
- Re: Cary 300 SEI with HUM in Noise Floor - recstar24 15:43:05 03/12/07 (1)
- Re: Cary 300 SEI with HUM in Noise Floor - Paul Joppa 21:59:31 03/12/07 (0)
- Re: Cary 300 SEI with HUM in Noise Floor - daleda 12:44:50 03/11/07 (1)
- Re: Cary 300 SEI with HUM in Noise Floor - SETdude 14:36:54 03/11/07 (0)