Topic: audio upgrade - 6 ohms speakers

[luis]

i was listing down this afternoon the possible replacement of my Tannoy Fusion 3, 2 channel set-up.  i had in my list: b&w, MA and PSB.  i noticed when i upgrade my speakers to mid-level: Rx1, Rx2, Image T5 the Nominal Impedance changes from 8 to 6.  i have two amps: (1) sr heac07 (vaccum tube ) with 8 ohms and 4 ohms speaker in (2) nad 326bee with + and - speaker in "minimum speaker impedance 4 ohms"

my questions are (1) for vaccum tube where do i put the positive 8 ohms or 4 ohms? (2) for nad 326, since it has one positive in, what's the difference using between an 8 ohms speaker vs a 6 ohms speaker?

pa-advice naman mga master guru.

tia...      

[edison]

The general rule I think is to match the amplifier impedance with the speaker impedance for a perfect match,  however some amplifier can accept 4 ohms impedance (this is better than amplifier that can accept only 8 ohms). In your question, you can connect it in the 4 ohms terminal of your amp since your speaker is 6 ohms the amp can easily run on your 6 ohms impedance speaker. In the tube amp, if you connect it to the 8 ohms terminal, your amp will heat-up faster than normal. But in the 4 ohms terminal, it can easily drive your 6 ohms speaker.

[luis]

thanks sir Edison!!!

will keep that in mind, cheers...