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Dahlquist LP-1 Passive/Active crossover

Does anyone have any expereince using the Dahlquist LP-1 Passive/Active crossover in place of the stock passive crossover with Magnepan 20R speakers? I have been using a Bryston 10B "standard" active crossover to replace the passive crossover in my 20Rs setting the high pass at 300Hz/6db slope, and the low pass at either 100Hz/12db slope or 150Hz/18db slope. I recently acquired the DQ LP-1 and was curious if it would work.
bbro
rodman99999
6,202 posts
 
Bbro- You'll have much cleaner sound if you find either(new) polypropylene or polystyrene caps for the hi pass filters. If you need impedence matching resistors: use Vishay bulk foil. I got mine from Michael Percy. WBT makes some really nice RCA jacks for PCB mounting, that are perfect for the DQLP-1(no modification needed to install). I've forgotten the part number, but will look it up later, if you're interested.
rodman99999
6,202 posts
 
The WBT-0234s were what I installed to replace the cheesy, original RCAs in my DQLP-1: (http://www.wbt.de/index.php?id=73&backPID=73&tt_products=59)
spatialking's avatar
spatialking
612 posts
 
I agree with the need to replace the RCA jacks. Forget the sound improvement, the intermittent sound there - sound gone "Feature" will drive you nuts!

I do have a schematic I made for it in PDF format, if anyone needs it. Just drop me an email and I will send it to you.
spatialking's avatar
spatialking
612 posts
 
Also, I found the original owners manual which I scanned into pdf format and I also have a schematic for an upgrade to it which I have been using for some years now. If anyone wants them they are welcome to them. Just shoot me an email.
summerdog76
2 posts
 
Hi does anyone know where I can find instruction manuals for the DQ 1W subwoofer and the DQ LP1 Crossover? Thanks
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