2. amps-preamps
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Amplifier speaker relay problems.

Hi, I am working on an Niko Alpha II amplifier it is an older amp with the two large VU meters on the front. There is a problem when powering up that one chanel may not work. I have tracked this down to a relay that is in the speaker output path and is 24volt dc with two normally open contacts. It is on a printed circuite board and I wish to change it as cleaning did not help and I am afraid it may be degrading sound when working if not providing a good path. I uderstand this relay helps prevent thump on powerup and the sound from dithering out on shut down. Thank You for any advice.
guycom

Showing 4 responses by guycom

guycom OP
20 posts
 
Thank You for your reply, I did not realize that this relay also may offer protection, Though I am sure it is a mechanicle/contact problem with the relay itself do to the fact that if I tap the relay on top the chanel restores.
Thanks again, Guycom
guycom OP
20 posts
 
So Just let me know if I have this correct. Remove the relay and run the two normally open swich legs thrue a 1/2 amp fuse.
Thank You,
Guycom
guycom OP
20 posts
 
Thanks Bob I will give that a try first,
Regards, guy
guycom OP
20 posts
 
Update- crocus cloth worked. Also corected a low left channel at slight volumes. Thank you both for the advice regards, Guy
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