Thread: CERWIN VEGA D9's (NEED HLP)!!!!!!!

OK, So I recently purchased a vintage set of Cerwin Vega D9's off Craigslist.

Against my better judgement I met the guy in a parking lot, mainly because we lived about 300 miles apart and he agreed to meet halfway. They were in really nice condition and of course the seller guaranteed they worked perfect. Subwoofer appear to have been re-coned at some point.

I get them home and both blow fuses at anything past half volume. I'm trying to play 1980's hairband music at high levels. They both blow pretty fast at any loud volumes.

Here's a little run down.

I'm trying to turn the mancave into a Jam room.

I currently have a set of Pioneer HMP-100's (Well there the 200-Watt version) and they sound awesome. Very clean at high volumes. I also have a set of (JBL-4312) studio monitor speakers. They sound great, but not the best for loud music.

I have an Adcom pre-amp, and am using my laptop as the music source.

I am currently running the Pioneer's and JBL's together. I have the Adcom pre-amp, and (2) Adcom 555II power amps. I've split the signal out of the pre-amp to the (2) Adcom power amps. I'm using the CD input on the pre-amp for my laptop.

The Pioneer's and JBL's work fine with this set-up and have no issues at all. Since I wanted more volume, I was going to replace the JBL's with the Cerwin Vega D9's.

Well. they blow fuses each and every time. I'm using the correct factory fuses, (250V 2.5Amp slow blows), even bought some factory Cerwin Vega d9 fuses on ebay. I also tried some (3mp) slow blows, and got same result. When the fuses blow they are super hot when I remove them.

I actually tried new speaker cable coming off just one amp and taking everything else out of the equation.

I'm at a lose and need guidance, as I'm fairly new to the whole vintage audio stuff. I'm at the point now that I'm pretty sure they will have to be taken in for repair, which won't be easy as I live in a small town and the nearest repair place is either Atlanta (120 miles away), or Nashville, (110 miles away).

Any help would be greatly appreciated.

Thanks in advance.

Too much power? If I recall, the prevailing amps/receivers I used to see driving Cerwin Vega’s were max 40-50 wpc, and usually very clean. Aren’t CV’s super efficient, like 90+ db/watt?

I think fuses normally protected from clipping as well, but might also prevent too much power driving them? Just a guess……


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