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Which external cross-over x-over to consider?

I would like to use an active x-over with balanced and single ended i/outputs between pre and power amps for a sub(Martin L. Depth) and my merlins, crossing over at around 40hz.
I never realized that there are a bunch of extrenal x-overs to choose from. Which ones would be of higher quality?
Here are some I have found, but I am sure there are many more:
Marchand's xm126 & xm-44,
nht's x1 & x2,
Bryston's 10b,
Mark levinson LNC,
deqx pdc-2.6,
Audio Research EC21.
If there are others worthy of looking at let's hear about them.
pedrillo
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rauliruegas
13,060 posts
 
Dear Pedrillo: IMHO I think that you already owned through your ML sub and I think too that its high pass filter is really good.

Why do you think you need an additional external crossover?

Regards and enjoy the music.
Raul.
pedrillo OP
560 posts
 
Rauliruegas,
The one thing it doesn't have is balanced inputs and outputs. I like how my sims (pre & power amps) sound in balanced mode.
tiger
313 posts
 
ARC, great sound and ability to get support in the usa
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gregm
3,405 posts
 
The one thing it doesn't have is balanced inputs and outputs. I like how my sims (pre & power amps) sound in balanced mode.
I would enjoin you to consider a second subwoof instead of an external electronic xover. Sonically, there will be little if any perceptible difference between balanced & SE at low frequencies. There will be perceptible & significant difference b/ween one & 2 subwoofs.

Anyway, amongst the units you list, the Marchand is the usual culprit, well made, good sound, & dependable.
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