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Can anyone help me rebuild a crossover? Mystery parts and some unknown variables.

post #1 of 3
Thread Starter 

I got a couple of pairs of Yamaha outdoor speakers. They sound blown. I think they let the bare speaker wire touch each other and now I just get distorted sound from the tweeter. I opened them up and found a capacitor (2.2uf 100v) and an unlabeled inductor. I think I can rebuild this crossover but I cant figure out the specs for the inductor. 

 

If I know some of the driver or speakers specs can someone help me figure out the inductor value?

 

The capacitor is listed above

 

The speaker has 2 drivers connected by a cheap 2 piece crossover

The drivers are a 1/2' PEI dome tweeter (marked NSAW150)

and a 5" full range driver (NSAW190)

2 way acoustic suspension speaker

 

2.2uf 100v cap

mystery inductor

 

85db sensitivity into 6ohms

 

If the crossover is irreperable can we figure out the driver specs so I can use them for another project?

 

Thanks in advance everyone!

post #2 of 3
Quote:
Originally Posted by bundee1 View Post
 

I got a couple of pairs of Yamaha outdoor speakers. They sound blown. I think they let the bare speaker wire touch each other and now I just get distorted sound from the tweeter. I opened them up and found a capacitor (2.2uf 100v) and an unlabeled inductor. I think I can rebuild this crossover but I cant figure out the specs for the inductor. 

 

If I know some of the driver or speakers specs can someone help me figure out the inductor value?

 

The capacitor is listed above

 

The speaker has 2 drivers connected by a cheap 2 piece crossover

The drivers are a 1/2' PEI dome tweeter (marked NSAW150)

and a 5" full range driver (NSAW190)

2 way acoustic suspension speaker

 

2.2uf 100v cap

mystery inductor

 

85db sensitivity into 6ohms

 

If the crossover is irreperable can we figure out the driver specs so I can use them for another project?

 

Thanks in advance everyone!

 

Crossovers sooooooooooooooooooooooooooooooooo rarely fail. 

 

Speaker drivers almost always fail. Like if you look at them sideways and fart. Poof, there they go. If you are supremely unlucky the speaker surrounds can become UV damaged and then you dont even need to play them for them to fail. 

 

If you short out your power amp it may also fail. 

 

That being said, I would make sure the speaker drivers and amplifier are functional before you do any work on the crossovers or anything else. Use VERY VERY VERY low power and test tones at appropriate frequencies for each driver - dont put bass into a tweeter.

 

In the event that the speaker drivers and amp are OK (miraculous) I would start your journey into rebuilding the crossover by checking the caps. Or just replacing them. 

 

When you see people going fappity fap fap fap over rebuilt crossovers or aftermarket crossovers they are doing so because the new crossovers change something (better parts or outright different design), or replace caps that are no longer within design specs. 

post #3 of 3
Thread Starter 
The amp is fine its just a crappy wiring setup. 2 wires keep touching because its just jerry rigged. The cap doesnt seem damaged but ill switch it anyway.
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