2. amps-preamps
  3. 156741-122106

Repair help please

Hi everyone,

I bought a refurbished Dayton Audio SA 1000 subwoofer amp that I hope is worth fixing.

After a few weeks, it started to cause a pop sound at volume levels approaching moderate and above.

A few weeks later, I noticed it happening more often when raising the volume from a lower (low enough to speak to someone in the room) to moderate level.

The unit also developed a noticeable mechanical hum and made the subs pop quite loud the last 2 times when powered off.

Parts Express reimbursed me with no need to ship mine back as they can't do anything with refurbished returns.

Duke at Audio Kinesis immediately shipped me a brand new replacement before I had a chance to send him a check!
Beginning to think the worst part of missing Axpona is not having the opportunity to meet Duke in person!

So I have a working Dayton now.
Such a nice amp!  Would be great to have the other one repaired.

Anyone else experience this? Is it worth fixing?  

System:
Laptop ->USB -> Hegel H190 ->RCA->Dayton SA1000 -> 4 subs in Series/Parallel 



  
hleeid

Showing 3 responses by hleeid

hleeid OP
219 posts
 
I connected the subs as indicated by Duke:

Dayton Right  (Top posts) output -> 4 post sub -> 2 post sub
Dayton Left  (Bottom posts)  output -> 4 post sub -> 2 post sub

Should be at 4 ohms.

Dayton user manual page 3:
8. Speaker Outputs
Speaker level output connections carry the amplified signal
to the subwoofer drivers. Binding posts will accept bare wire,
banana plugs, or spade plugs. Two sets of outputs are provided
so multiple systems can be connected. When using
both outputs the combined load must have a minimum of 4
ohms impedance!

Should the impedance be different? 
hleeid OP
219 posts
 
Appreciate the long shot.  
There are a few local places I can look into.

I like the experiment idea though!  Never opened up any components.

Would be good to have the opportunity to examine the parts, see what/how things need to be cleaned, etc. 
Watch some videos on this, ...
hleeid OP
219 posts
 
@rodman99999 - I'll take a look when I open it up.  Would replacing a filter capacitor be expensive? Complicated?
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