mcintosh amps any one can explain impedance taps

It matches the output impedance to the speaker's impedance. In theory, such a match affords better performance and power transfer.

Kal

Always try to match the speakers impedance. This is a very nice feature from McIntosh. I had a 7270 for 18 years until I went to tubes. Good luck.

You may want to check your speaker specs and select the tap close to the minimal value of the speaker impedance curve. Impedance is generally spec'd at a nominal value but the impedance of all speakers varies with frequency. For example, I use the 4 ohm taps to drive nominally 8 ohm speakers that dip to a little over 3 ohms. .

my maggies are 4 omhs so the 2 omh tap is the best match right I see the meters on amp not going as high when useing the the 2 omh taps