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Tube DIY Asylum: A high quality(simple) linestage for passive biamping? by Vaughn

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A high quality(simple) linestage for passive biamping?

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Hello all...

I am putting together an "Econowave" system with Selenium D220ti compression drivers driven
by a 2A3 amp and JBL LE14A woofers driven by (probably) a Behringer A500. I would like to passively biamp these drivers and drive both amps from a high quality linestage.

I have been thinking one of the 12B4A or 5687 schematics floating around but I am not sure
if these would have sufficiently low output impedance to drive both amps without any problems.

I would also like it to be a relatively simple design. I have built Eric Barbour's "Brute Force in a Linestage" before and, while it worked, it was something of a monstrosity.

I would like one that has decent PSRR as I HATE hum(sorry to yell like that!). I really don't want to go solid state for my linestage so I need recommendations please!


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Topic - A high quality(simple) linestage for passive biamping? - Vaughn 13:11:27 12/26/08 ( 15)