Tweeter problem, can you help?

[wilsonj]

Hi Guys,

recently I built a centre speaker based on the Proac 2.5clones. I have also done the mod of removing the ferro fluid and coating the cone with damar varnish.

All has been well, until I dismantled the speaker the other day in anticipation of rebuilding the xover. The parts didn't arrive, so I quickly put it back together to use in the interim. But now I find that the tweeter is quieter and at medium volume crackles/distorts.

Any ideas what went wrong? All the xover components are a litle close together. And I am pretty sure the polarity was right.

Could I have got the terminals too hot when soldering??

Tweeter is the Scanspeak 851300

Any help appreciated. I don't really want to buy a new tweeter.

Thanks

Regards

Jamie

 

[pinkmouse]

Sounds like a loose connection or a dry solder joint somewhere. You may have damaged the driver, but if you were reasonably careful, then that's unlikely. I personally always use crimp terminals on tweeters to avoid that problem.

 

[wilsonj]

OK thanks Al,

I will check for dry joints. And I might use crip terminals in the future too. I really hate heating up such small wires like that.

Having all the inductors really close to each other wouldn't cause this problem would it?

Regards

Jamie

 

[pinkmouse]

Having all the inductors really close to each other wouldn't cause this problem would it?

To be honest, I don't know! 🙂

I was always aware from my first speakers onwards, that inductive coupling could be a problem, so I have never built compact crossovers. Therefore, I have never actually experienced any problems, so I don't actually know how they would show themselves.