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Original Message

Re: Direct Volume CDP into OTL amp?

Posted by bryan on December 23, 2004 at 07:18:33:

Thought I should mention one other thing. If you are new to OTLs, you might not know about the importance of speaker impedence. This might even be more important since you won't have extra gain from an active linestage. And if your speakers have low sensitivity (especially with the S30). With OTLs, speakers should be a minimum 8 ohm impedence, and the flatter the curve the better. So you might want to also consider some ZERO autoformers from Paul Speltz, which can boost the speaker impedence up to the optimal 16 ohms. Even if your speakers are 8 ohms, ZEROs make a big difference. If your speakers are 4 ohms, ZEROs are a must.