Amp/Preamp Asylum Looking for a new Amp or Preamp? If you're after tubes, post over here. |
|
Hello,What would cause my powered subwoofers to "thump" when the power amp comes out of standby mode?
To clarify:
I first turn on my tube preamplifier and let it power up, stabilize, and come out of mute mode.
I then bring the power amp out of standby mode and it stabilizes and powers up.
The powered subwoofers (one for each channel) are connected to the preamplifier's RCA pre-out terminals. The subs are left in standby mode and use RCA interconnect signals to trigger to power up.
The thump happens when the power amp "clicks" on from standby mode and it only happens to the subwoofers, not the main speakers.
To make things complicated, the thump doesn't happen every time; occasionally there is no thump. I haven't been able to come up with any cause-and-effect relationship though.
I know I could just turn the subwoofers completely off each time and then turn them back on after the power amp comes out of standby mode but I like the convenience of using the DC trigger feature.
Any ideas?
Regards,
Tom
Edits: 04/13/17
This post is made possible by the generous support of people like you and our sponsors:
Topic - Why do subwoofers thump when turning on power amp? - tketcham 09:17:51 04/11/17 (28)
- RE: Answer.... - BigguyinATL 07:24:30 04/13/17 (3)
- RE: Answer.... - tketcham 09:33:18 04/14/17 (1)
- Here's the easy solution... - tketcham 14:33:15 04/15/17 (0)
- RE: Answer.... - airtime 10:54:54 04/13/17 (0)
- Oh the thump - airtime 07:18:20 04/13/17 (3)
- RE: Oh the thump - tketcham 09:38:08 04/14/17 (2)
- RE: Oh the thump - bare 10:10:43 04/14/17 (1)
- RE: Oh the thump - SpotcheckBilly12345 13:09:18 04/14/17 (0)
- RE: Why do subwoofers thump when turning on power amp? - Inmate51 22:31:44 04/12/17 (4)
- RE: Why do subwoofers thump when turning on power amp? - tketcham 05:48:21 04/13/17 (1)
- RE: Why do subwoofers thump when turning on power amp? - Inmate51 10:37:15 04/14/17 (0)
- RE: Why do subwoofers thump when turning on power amp? - John Elison 02:15:04 04/13/17 (1)
- RE: Why do subwoofers thump when turning on power amp? - tketcham 05:40:22 04/13/17 (0)
- RE: Why do subwoofers thump when turning on power amp? - airtime 16:17:17 04/11/17 (5)
- RE: Why do subwoofers thump when turning on power amp? - tketcham 19:22:16 04/11/17 (0)
- RE: Why do subwoofers thump when turning on power amp? - John Elison 16:36:13 04/11/17 (3)
- RE: Why do subwoofers thump when turning on power amp? - tketcham 18:55:26 04/11/17 (1)
- RE: Why do subwoofers thump when turning on power amp? - John Elison 20:15:42 04/12/17 (0)
- RE: Why do subwoofers thump when turning on power amp? - G Squared 16:44:29 04/11/17 (0)
- Just in their nature to thump - Dynobot 15:48:58 04/11/17 (4)
- RE: Just in their nature to thump - tketcham 19:18:44 04/11/17 (3)
- RE: Just in their nature to thump - John Elison 20:22:20 04/12/17 (1)
- RE: Just in their nature to thump - tketcham 05:42:23 04/13/17 (0)
- :-) - Dynobot 20:10:34 04/11/17 (0)
- Suggest you leave the preamp on mute - kavakidd 14:34:37 04/11/17 (3)
- Great suggestion... - tketcham 15:52:58 04/14/17 (1)
- Glad to be of help - n/t - kavakidd 21:08:42 04/14/17 (0)
- RE: Suggest you leave the preamp on mute - tketcham 19:26:45 04/11/17 (0)