4 ohm or 8 ohm tap on old tube amps?

I agree with Mechans here...Using a 4 ohm tap won't hurt anything with 8 ohm speakers...I have usually found 8 ohm taps work best, even with 4 ohm speakers...but your milage will very much vary on this...just try it..

I find in general the higher the impedance tap used the better the sound. As Mechans says just try both taps, your opinion may differ.Trust what you hear.
Regards,

You can decide which tap you like better based on person taste, but you should also listen for which tap gives better power transfer. One tap should sound more powerful and that is the tap that matches best with your speakers.

Since speakers are not a consistent impedance over there whole frequency range you really have to try both taps and see which you prefer.
Alan

One advantage of using the 4- versus 8-Ohm tap is that the amp will have twice the damping factor so the bass probably will sound better damped...which may be better or may be worse.
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