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Hello,I am doing some experiments, bi-amping my Tannoy System1200, because the need of more power for the 12" DC drivers is obvious.
First of all, the crossover frequency for the horn is 1.3 kHz. Going below - with an active crossover - is no good idea, because
the horn will get unlinear. This is part of the Tannoy DC philosophy.
The musical improvement is simply astonishing to my ears. I have found out, that this even gets better, when both amps have a similar tonal behaviour. So I am going to use a 845 SET together with my existing 300B SET amp. At the moment I am using a KT88 PP in triode mode for LF, which btw. provides quite nice results.Does anyone have experience or some thoughts regarding this issue ?
Follow Ups:
I've heard fantastic improvements with active crossovers, much more than the mere increase in power. Much more clarity--as if layers of distortion have been removed. Just my two cents worth.
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Tin-eared audiofool and obsessed landscape fotografer.
http://community.webshots.com/user/jeffreybehr
Sorry, it means "by the way" as motorbruce already wrote.
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Tin-eared audiofool and obsessed landscape fotografer.
http://community.webshots.com/user/jeffreybehr
BTW = By The Way
I haven't had any experience biamping yet but I'm headed that direction. The Tannoy Yahoo group has a group buy going on a pcb to make an active crossover. I'm thinking that I'll try driving my Tannoy Reds with a 45SET and maybe try a 300BSET on the bottom end. Just thoughts so far.
That also seems to be a great idea ! The key factor is driving the Tannoys to make them really sing. For best performance they need more power, than a single triode amp normally can provide. So biamping them with two triode amps could be the way to go. And this is not a matter of just playing louder. Just my 2c.
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