Xenon 200.4 bridged @ 12 ohms?

Audiophiliac · Post by **Audiophiliac** » Mon Sep 21, 2009 4:28 pm

I am wondering how the 200.4 and XeLoad would react to a 12 ohm mono load.

Post by **stipud** » Mon Sep 21, 2009 6:32 pm

Impedance below 8 ohms bridged causes a normal drop in power. So with 400w at 8 ohms, 16 ohms would be 200w. 12 ohm mono should be a good 300w in that case.

Audiophiliac · Post by **Audiophiliac** » Mon Sep 21, 2009 6:40 pm

That is about what I was hoping. About perfect for my sub stage. 200x2 on the front is a bonus.

Thanks!

denim · Post by **denim** » Tue Sep 22, 2009 8:35 am

12 is an odd load, what are you using that is showing a 12 ohm load? Should I guess some JL subs?

bogart · Post by **bogart** » Tue Sep 22, 2009 8:38 am

several dual 3's in series would do it....I am not sure how the amp will react to that impedence. There is a load so it should work....but I don't know if a xenon would be the amp to do it with as they have a funny audio path and it just may not like load above 8 ohms....

bogart · Post by **bogart** » Tue Sep 22, 2009 8:40 am

dual 6? why not run a lower impedence and just watch the gain....remember....amps don't blow speakers as some would like to believe....people blow speakers.....if you are in control and know the system your sub should be fine no matter the impedence load. Just don't clip the driver and it won't fail.....

Post by **stipud** » Tue Sep 22, 2009 9:11 am

Speakers should not be run in series... only voicecoils.

denim · Post by **denim** » Tue Sep 22, 2009 5:07 pm

The Sound Splinter Orphan 8 is a SVC 6.

Audiophiliac · Post by **Audiophiliac** » Tue Sep 22, 2009 5:08 pm

I am going to be running a trio of old school RFA124 subs. 3 4 ohm subs. So its either ~1.33 or ~12.

Audiophiliac · Post by **Audiophiliac** » Tue Sep 22, 2009 5:27 pm

stipud wrote:Speakers should not be run in series... only voicecoils.

Why? Just a couple upsides of running at 12 ohms is a higher damping factor and lower distortion. I am not worried about either, but I see no downside to wiring in series vs. parallel.

Post by **stipud** » Wed Sep 23, 2009 7:13 am

Audiophiliac wrote:
stipud wrote:Speakers should not be run in series... only voicecoils.
Why? Just a couple upsides of running at 12 ohms is a higher damping factor and lower distortion. I am not worried about either, but I see no downside to wiring in series vs. parallel.

Unlike parallel wiring, which puts each speaker in a separate circuit, with series wiring all the speakers are part of the same circuit. The impedance of the first speaker varies the signal applied to the second, and so on.

Don't forget that impedance is not constant, and varies heavily based on frequency played, as well as several other factors. Three speakers, even the same model from the same manufacturer, will all have slight differences in their impedance curves. These differences in the speakers electromagnetic properties cause interference. This is not an issue with wiring voicecoils in series, since they move in the same direction, have generally the same moving mass and much more similar electromagnetic properties as the other voicecoil on the same sub.

I highly recommend that you only wire speakers together in parallel. This way all the speakers have their own circuit, so their slight electromagnetic differences do not apply to the other speakers. Dual voicecoils themselves may be done in series, but only on the same subwoofer. While series wiring is POSSIBLE, I would not recommend it for high fidelity. The higher damping and lower distortion you would achieve by running the higher load would be moot compared to the amount of distortion a series circuit would give you.

Personally with those subs I would recommend running two in stereo. The third will make an inaudible difference to your volume, and causes you to have only two poor options for wiring.

Audiophiliac · Post by **Audiophiliac** » Wed Sep 23, 2009 7:26 pm

Hmmm.....well I have been thinking of running only 2 of them to save some space. I understand your logic behind what you are saying. I just cannot seem to find any similar discussions on the subject here, on DIYMA, CCA, BCAE1, etc.....oh well.

I can always sell one or build a HT sub with it.