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» Termpro Audio Forum » Installer's Corner » Advanced Topics » forcing amps to be "strapped"

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Author Topic: forcing amps to be "strapped"
[meph]
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i have 2 old orion225hcca's.. they require a bridging module to bridge the channels. i got to thinking, that all you do to do that is invert the phase on one of the channels, correct?

i have a bridging module built for two amps. on its outputs (2sets of course) one channel is inverted on both. could i feed one amp the normal signal, and the other the inverted signals. then both channels on one amp would be normal, and both on the other would be inverted. now all i'd have to do is find a way to get the amps to run together, right?

can anyone tell me how i could do this? =)
and if it can or cannot be done, please explain how.. thx

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Posts: 2794 | From: NW, Indiana | Registered: Jun 2000  |  IP: Logged | Report this post to a Moderator
Eric
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Good question meph...

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Posts: 904 | From: Francisco, IN | Registered: Nov 1999  |  IP: Logged | Report this post to a Moderator
[meph]
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come on smart guys.. help a brotha out.. =)
ttt

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Mr.Dank
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One day I was bored, so I tried inverting a channel using a crossover so that I could bridge the amp.

the orion 2350 is still sitting in my garage. someday I will get it fixed.

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Posts: 1259 | From: Fullerton. CA ,USA | Registered: Oct 1999  |  IP: Logged | Report this post to a Moderator
[meph]
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lol....
well. thats why i did w/ my orions. i had a bridging module built that inverted one channel. then i bridged the amp.

but i need 2 amps to act as one =) that kind of bridging, not just channels..

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ShadowStar
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Meph-

The reason amplifier channels can bridge is because one channel may produce say +10v. If you invert the other channel, it will produce -10v. This makes the current through the speaker go up and drives the speaker harder.

However. With two bridged amps, you already have one voltage swing. If you try to bridge this with another amp, the maximum voltages are STILL +10v and -10v. So you can't bridge more than 2 single ends (single ends being a single channel not incorporated into any other channels)

ShadowStar

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Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999  |  IP: Logged | Report this post to a Moderator
ShadowStar
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My computer sucks.

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Still looking for that CHEAP Thunderdome :D

Got Ears? Get Oz!

You can't build a reputation for what you're GOING to do.. But you can build one for TALKING about it!

-Eclipse-Rockford Fosgate-Oz Audio-Precision Power Inc.-AudioControl-Stinger-Tsunami-Clifford

It's all about knowledge, love and respect.


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S10XtremeNLow
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uhm need a briding module for the 225? i've got a 400bdg that i ain't using
-brandon

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Posts: 52 | From: Syracuse, NY | Registered: Jun 2001  |  IP: Logged | Report this post to a Moderator
   

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