Soundstrean Reference 405

mike49504 · 22nd December 2010, 07:29 PM

AMp powers up and idles perfectly. I cleaned all switches All 4 chennels work great.

The Mono1 and Mono 2 channels for subs Have 31.68 volts of DC on the outputs none of the outputs test bad in the board . Any ideas?

mike49504 · 22nd December 2010, 07:38 PM

Ok i guess nevermind i reflowed the solder on the driver board and amp works perfectly now.

gisewhcs · 22nd December 2010, 09:40 PM

That was exactly the same fault I had with my girlfriends Ref.405, but in one of the smaller channels.
Does yours have a turn-off pop on the wooferchannel too?
It's just a turn-off pop, that's what made me curious.
What I read so far, that's common to many older Soundstream amps.

I posted a threat here, but never had the time to take it out of my girlfriends booth and look further.

807tubenut · 23rd December 2010, 02:30 AM

Yea, Iv got a rack of old SS gear, many of them exhibit the turn off pop, I have corrected this with a large value cap held on the remote signal wire, and in extreme cases, have installed speaker protection relays. plus a good resistor across the output terminals can help to

22nd December 2010, 07:29 PM	#1
mike49504 diyAudio Member Join Date: Sep 2006	Soundstrean Reference 405 AMp powers up and idles perfectly. I cleaned all switches All 4 chennels work great. The Mono1 and Mono 2 channels for subs Have 31.68 volts of DC on the outputs none of the outputs test bad in the board . Any ideas?

23rd December 2010, 02:30 AM	#4
807tubenut diyAudio Member Join Date: Jun 2010 Location: SinCity	Yea, Iv got a rack of old SS gear, many of them exhibit the turn off pop, I have corrected this with a large value cap held on the remote signal wire, and in extreme cases, have installed speaker protection relays. plus a good resistor across the output terminals can help to __________________ All my battles have been won, But the war has just begun.

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22nd December 2010, 07:38 PM	#2
mike49504 diyAudio Member Join Date: Sep 2006	Ok i guess nevermind i reflowed the solder on the driver board and amp works perfectly now.

22nd December 2010, 09:40 PM	#3
gisewhcs diyAudio Member Join Date: Sep 2007	That was exactly the same fault I had with my girlfriends Ref.405, but in one of the smaller channels. Does yours have a turn-off pop on the wooferchannel too? It's just a turn-off pop, that's what made me curious. What I read so far, that's common to many older Soundstream amps. I posted a threat here, but never had the time to take it out of my girlfriends booth and look further.

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