System Inpendance & Amplifier Design

[davepenney]

Hi there,

I’m still very new to all this, and trying to work out the transformer power for the amplifier (I’m using Brian Bells LM 3886)Kit.

The system I’m intending to build is the Zaphaudio Seas L15RLYP / 27TFFC System

http://www.zaphaudio.com/audio-speaker12.html

It suggests System impedance does not drop below 7 ohms. So is this therefore a 7ohm speaker?

If this is the case I would lean the transformer towards 22v secondarys producing higher rails of around 34v is this correct?

also any opinions on this match of these speakers / amp is appreciated. ie well they have enough power.

many thanks