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Post by toecheese on Jun 17, 2007 21:57:35 GMT -7
I'm going to use my EP2500 to drive a pair of Q18s. I've got too many choices and could use some advice: - Should I get the dual-1 or dual-2 ohm Q18s.
- How should I wire them with my EP2500? Parallel or Bridged?
From other reading on this board, even though the EP2500 can do 2-ohm loads, I shouldn't do it. So, that means 4-ohm. Even that means I have choices in the speaker config. Should I wire dual-2s in series and run one on each output channel? Should I run all 1s and wire all of them in a bridged configuration? Right now I'm leaning towards dual-2s, each wired in series (4O), and driven off an individual channel of the parallel EP2500. That gives me separate gain and filter, though I don't need that. I struggled with this when I did my Tempests: farzanegan.org/ht/2006/04/infinitely-baffled-wiring.html. I think I'll end up with the same thing- but instead of wiring the VCs in parallel, I'd do them in series (to end up with 4 again). Suggestions?
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Post by ThomasW on Jun 17, 2007 22:01:38 GMT -7
EP2500 don't really like 2 ohm loads.
Fi will custom build your drivers as SVC 4 ohm units if you tell them you're using them in an IB
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Post by toecheese on Jun 17, 2007 22:04:25 GMT -7
I've got a message into Scott at Fi and am waiting to hear back. I asked about what the 'custom' IB configuration is- is that it? I'm guessing he does just what I was suggesting- puts the VC in series to get a 4Ohm load?
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Post by txsmoke on Jun 19, 2007 9:19:21 GMT -7
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Post by penngray on Sept 12, 2007 7:40:26 GMT -7
really?
I have been using the EP2500 in bridged mode getting 2400W to drive 4 Q18s wired to 2 ohms
Note:always needed a cleanbox to increase the signal from my receiver.
Maybe its time to change the wiring.
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Post by ThomasW on Sept 12, 2007 8:06:05 GMT -7
Behringer publishes no 2 ohm bridged specs for the EP series amps, this tells us something ..... Obviously the amps will drive that load, but it's probably not the best idea if/when there are other options. Bridging doubles the distortion.... The ideal situation is running a configuration that provides the best balance of power, lowest distortion and lowest workload on the amp. Sometimes that's possible, other times it's not...
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Post by penngray on Sept 12, 2007 8:08:15 GMT -7
Thanks, I have opened up my project thread again to discuss my option.
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