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Peavey SP-3

How old? If they look like this I wouldn't bother:
images?q=tbn:ANd9GcQAP5sa12OMFMLm-5NIHfHj6DJXsrsDBATqI-F_hN61PBDH_t5M.jpg



But if they look like this then they are totally usable provided you have an EQ to tune them (also, they sound MUCH better bi-amped with an external x-over):
DV019_Jpg_Regular_601391_V.jpg
 
Played hundreds of gigs through the old SP-3's. With some EQ, they can sound quite good, if you don't try and run the whole band through them with no subs. If I still had them, and cash was an issue, I'd be using them for sure. Pretty bullet proof....heavey suckers tho.
 
I am probably being unfair. If I had the choice I would not use old SP3s when there are other boxes like the Yamaha Club series on the used market for very little money that outperform the SP3 by leaps and bounds. But if it's a choice between SP3s and nothing, I can make them work...it just takes EQ and Advil, both in strong doses.
 
...the actual SP-3 boxes are pretty decent and would be worthy candidates for speaker/driver upgrades...for example if you installed an Eminence Delta pro 15A the mid definition would be pretty intense, for the compression driver upgrade Parts Express has a inexpensive yet amazing 1" screw on driver
Here's the compression driver [Invalid or Expired Link Removed]

and heres the Eminence speaker mentioned http://www.eminence.com/speakers/speaker-detail/?model=Delta_Pro_15A


Of course doing a retrofit like this will cost a few bucks with the added issue of heavy and bulky cabs, however if the retrofit was indeed done and you had a dedicated sub (or didn't attempt to force lows into them) you'd end up with an extremely loud yet amazingly clean pa speaker that exhibits a pretty flat response.
 
[Dragging zombie thread to something like awareness...]

So, in the spirit of Don Quixote, I am attempting this same task, mainly 'cuz it's a project that I'm not paying for materials on, and my band is broke. :) These will be used solely for vocals, and only in the garage play space, not looking to haul these anywhere. So, not looking to spend large here, we have a tight budget.

The compression driver listed above is no longer available from Parts Express-Any suggestions on similar?

Also, if anyone has some of these sitting in a dusty corner and wouldn't mind selling one of the crossovers, I'd be ok with that. ;)

The cabs themselves were in a bad way, redoing those already.
 
[Dragging zombie thread to something like awareness...]

So, in the spirit of Don Quixote, I am attempting this same task, mainly 'cuz it's a project that I'm not paying for materials on, and my band is broke. :) These will be used solely for vocals, and only in the garage play space, not looking to haul these anywhere. So, not looking to spend large here, we have a tight budget.

The compression driver listed above is no longer available from Parts Express-Any suggestions on similar?

Also, if anyone has some of these sitting in a dusty corner and wouldn't mind selling one of the crossovers, I'd be ok with that. ;)

The cabs themselves were in a bad way, redoing those already.

You probably don't need to replace the entire compression driver. most of the time it's just a bad diaphragm, which is easy to change.

 
You probably don't need to replace the entire compression driver. most of the time it's just a bad diaphragm, which is easy to change.




Thanks. Turns out, after some testing, the drivers all seem ok. My real problem now is the broken crossover. I see something similar from Parts Express for around $50 for one from Eminence, much better than the $180 Peavey wants.

Any other suggestions?
 
Thanks. Turns out, after some testing, the drivers all seem ok. My real problem now is the broken crossover. I see something similar from Parts Express for around $50 for one from Eminence, much better than the $180 Peavey wants.

Any other suggestions?

Unless the x-overs are totally cooked (i.e. signs of burnt components) you may be better off having them repaired instead of replaced.