tweeter question

[toque_101]

So I finished my first pair of DIY speakers. The Audax HT surrounds. Anyway, got them together and they sound great, but noticed that one didn't quite sound right. Turns out the tweeter is dead, the negative terminal is really loose and doesn't make connection. So, I have to send it back and get a new one. But, now I still really want to listen to them!! I was wondering if it is safe to run one speaker without a tweeter and the other one with a fully functioning one? Thanks a lot.

[sreten]

no worries, sreten.

[Svante]

Originally posted by sreten
no worries, sreten.

Hmm... My first reaction was also " this is perfectly OK" and probably it is. I mean, tweeters burn all the time. But then it struck me, what if there is a second order filter in the tweeter section ans no conjugate links etc. That would make a perfect series resonator without the tweeter, and at one frequency the impedance of the speaker would be the DC resistance of the coil ie some 0.5 ohms.

I don't know this particular design, it is possible that the filter doesn't look like this, and also I have never heard of an amplifier that broke because the tweeter did.

So, probably it is safe anyway, but to be on the safe side, you could remove the tweeter section of the crossover filter.

Sreten?

[sreten]

the Audax HT rears have a 5R/15R L-pad, so no worries, I assumed.

They do have a 2nd order CL filter, with the L-pad afterwards.

sreten.

[sardonx]

You have to be careful with some tweeters. One of my lpg26t's kept cutting out. Then i noticed that the actual voice coil wire had come disconnected from the negative terminal. I was surprised lpg wouldn't route the wire differently so that it wasn't exposed. The wire is sooo thin. I managed to solder it back to the terminal though and have covered the exposed voice coil wires with silicon (caulking) on all terminals.

[toque_101]

The terminal cup I have allows me to bi-amp if I want but has a bar that you use to connect the two pos and neg terminals to single amp. So i removed the bar and now only running power to the woofer crossover.

Also, I was thinking about it and the tweeter negative terminal was a little loose even before I put the speakers together. I'm using disonnect terminals to connect to the speakers and they go on a little tight so taking them off probably screwed up the neg terminal.

I'm not too worried about it.

[Svante]

Originally posted by sreten
the Audax HT rears have a 5R/15R L-pad, so no worries, I assumed.

They do have a 2nd order CL filter, with the L-pad afterwards.

sreten.

Ok, so then there is no danger.

[toque_101]

they actually don't have an L-pad, but like I said, I effectively disconnected the tweeter portion of the crossover by getting rid of that bar on the terminal cup. thanks for your help guys....