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Yamaha B2 speaker selector

belgianbrain

AK Subscriber
Subscriber
I've been messing with my new B2. Power board was already recapped. I replaced some 2SC458 and some zener diodes and popped in some new relays. Old relays looked good but I happened to have some new ones for this unit and they looked better, so in they went.

Still waiting on the 22,000uF caps from Percy audio. Fine tuned all the settings and hooked it up.

YES. I understand the hype now. This thing has a quality to the sound that escapes expression in English. It does sound a smidgen better than the M2 I used to have and I believe it sounds better than my Bryston 3BSST, which was virtually tied with the M2 in my view.

One thing I find interesting is that this amp can accommodate 4 Ohm speakers, but when you hit the speaker selector for the second set, the first set pops out. Why would it prevent you from using two 8 ohm speaker sets?

I use a sub with my NS-1000s with cutoff set at 70Hz just to get the really deep floor rumble. As I understand it, a powered sub presents as a virtually open circuit to an AMP, so running this sub in parallel with the speakers doesn't add much load to the AMP. BUT, the B2 won't let me do it.

Now I'm wondering if I should just hook my sub up to my speaker binding posts. Thoughts?
 
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^^^ yeah the B-2 only lets you use one set of speakers at a time. I would not connect a passive sub in parallel to another set of speakers as I would not load up the B-2 ^^^
 
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