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Author Topic: Bridged amps and stereo playback  (Read 6847 times)

Tim Halligan

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Re: Bridged amps and stereo playback
« Reply #20 on: October 14, 2016, 01:27:30 pm »

One could make a very inexpensive Y cable with resistors built in, somebody probably does.

Thanks Ivan for pointing out the mistake in my initial post.

I actually did know that...I just neglected to type it in a clearer way.

As to the JR quote...I've actually seen a pre-made Y cable with the appropriate resistors built in...I'm fairly sure it was marketed under the name "Summer Y" or "Summing Y" down here...but it could've just as easily been something cobbled together by one of the local SR companies. It was donkeys' years ago.

Cheers,
Tim
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Jamin Lynch

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Re: Bridged amps and stereo playback
« Reply #21 on: October 14, 2016, 01:28:35 pm »

Perhaps what is eluding you is in many cases the amp will deliver it's full two channel output to the single load.

As an example of a good reason to use the  bridge mono option, I use one four channel NU4-6000 per side to drive my mains, a bridged pair for the 2x8 ohm lows, one channel for mids, one channel for highs.

If I were to use one channel for each 8 ohm low speaker, each would get only 440 watts peak. The same two channels bridged mono driving a four ohm pair deliver 3000 watts peak, almost 6 dB more "whoopee", a Really Big Deal at 40 Hz, where a 6 dB increase in SPL sounds twice as loud.

Good enough reason for me, and the NU4-6000 run cool with all channels driven to full tilt boogie in the hot summer sun, now turning into the hot fall sun here in sunny (when hurricanes are not wrecking things) Florida.

Art

Something wasn't "eluding me" ....I was "eluding to" something.
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Art Welter

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Re: Bridged amps and stereo playback
« Reply #22 on: October 14, 2016, 01:53:19 pm »

For me anyway, if this is just background break music I'd just play one side and be done with it.
Don,

There are countless songs mixed with hard-panned tracks, if you don't properly combine left/right, you get a random lack of something or other.

While reading your reply, was listening to Jimi Hendrix' "If 6 were 9".
The main vocals are only in the right channel, guitar left.
Which channel do you choose to omit, vocals, or guitar?

Right is wrong, but Hendrix played right hand guitars left handed...

Art

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Tom Roche

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Re: Bridged amps and stereo playback
« Reply #23 on: October 14, 2016, 03:14:41 pm »

Something wasn't "eluding me" ....I was "eluding to" something.

Elude vs. allude

Art made two points in short order.  It's all good.  :)
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Jerome Malsack

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Re: Bridged amps and stereo playback
« Reply #24 on: October 14, 2016, 03:31:16 pm »

http://forums.prosoundweb.com/index.php/topic,161058.0.html

Jeff has two JBL speakers and the amp is an Itech 2000. 
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Jeffrey l jones

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Re: Bridged amps and stereo playback
« Reply #25 on: October 14, 2016, 03:47:19 pm »

http://forums.prosoundweb.com/index.php/topic,161058.0.html

Jeff has two JBL speakers and the amp is an Itech 2000.

XTI2000 & XTI 4000
JBL SR4735X
Yamaha SW118V
Just fell the JBL's need more than 650watt apiece
The XTI's have built in limiters.
« Last Edit: October 14, 2016, 03:52:00 pm by Jeffrey l jones »
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Jamin Lynch

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Re: Bridged amps and stereo playback
« Reply #26 on: October 14, 2016, 04:08:26 pm »

Elude vs. allude

Art made two points in short order.  It's all good.  :)

Dat dern spel sheker.  :o Gotta blame it on something
« Last Edit: October 14, 2016, 04:18:15 pm by Jamin Lynch »
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Mark Wilkinson

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Re: Bridged amps and stereo playback
« Reply #27 on: October 14, 2016, 04:39:36 pm »

This is an extremely old topic.. maybe perform a search.

JR

John,  are you suggesting that we shouldn't try to help on old topics?

If that's not your suggestion, why quote me ?  :)
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John Roberts {JR}

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Re: Bridged amps and stereo playback
« Reply #28 on: October 14, 2016, 05:31:13 pm »

John,  are you suggesting that we shouldn't try to help on old topics?

If that's not your suggestion, why quote me ?  :)
I believe I wanted to make the point that this is a very old topic that has been explained at length numerous times.

You just happened to be the vehicle for me to make that point, I like to quote so my comments make sense in context.

Sorry if you feel singled out, I assure you I mean nothing other than what I said. This is a very old topic that has been well explored.

I even played along for a while.

Carry on without me... this time.

JR
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Tim McCulloch

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Re: Bridged amps and stereo playback
« Reply #29 on: October 14, 2016, 06:23:25 pm »

http://forums.prosoundweb.com/index.php/topic,161058.0.html

Jeff has two JBL speakers and the amp is an Itech 2000.

No such thing as an Itech 2000.  XTi, CE, maybe some ComTech, but not ITech.

Edit PS. Beaten to the punch.
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Re: Bridged amps and stereo playback
« Reply #29 on: October 14, 2016, 06:23:25 pm »


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