Dan Thompson wrote on Mon, 15 May 2006 15:20 |
Steve Oldridge wrote on Sun, 14 May 2006 23:30 | I've running a pair of SP2's bi-amped for tops and what a difference when compared to full range. Horns were replaced with Selenium DT10i's, but kept the BW 15's... They perform vey well.
STeve
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I run older SP2G's and am interested in your comment about bi-amping vs full range. Can you qualify the "what a difference" comment? Describe the improvement. It sounds like it may be worth the trouble to pursue that option. I'll take input from anyone on this issue (fullrange vs bi-amping).
Dan
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Dan,
bi-amping [by default] will give better clarity and separation of the specific frequency ranges sent to the drivers due to the signal be split - at the crossover point - and amplified prior to getting to the driver vs. a passive split at speaker enclosure. I can't provide you all the 'tech' details, but it's probably due to crossover type (24 vs 12db slopes, active/passive, etc.). I do know that bi-amped will always sound better. Perhaps someone can give you the techincal explanation.
In my case, I'm running a [stereo] tri-amp system, thru a BDX 234XL x-over, so everything above the mono LF split (around 100Hz) goes into the SP2's. The MF/HF split is set at 1.8Khz (per Peavey recommendation). So the Peavey BW 15" gets 100-1.8Khz and the Seleniums horns get the rest above 1.8K.
The SP2's have 2 NL4 Speakons, in parallel, on each box. Each SP4 has +1/-1 wired to the 15" and +2/-2 wired to the horn direct (or is it the other way around..?? I forget. Wired it up in standard manner some time ago).
I have a back plate on the amp rack with FOH L and R outs (NL4's) wired up from both amps. It's a quick hookup and it also allows different wiring if for some reason I need to run bridged or in some other config.
Steve