Can Music Reference MR9 drive Tannoy DMT 215 II

Roger's amps are designed take advantage of light loading. Using the 4 ohm tap on an 8 ohm speaker will decrease power output (20%) or so, but lower distortion and provide additional benefits. I believe in addition to a 4 ohm tap the RM-9 has a 2 ohm tap. So try them all.

I am still at work. It is only 3PM here in Hawaii. Will do it tonight. @Clio09 - The RM 9 has 4 6 and 8 omhs so I will try all of the taps later. Thanks.

I use my RM9 with excellent results on all my speakers.

Everything from B&W 801's to Quad 57's(very carefully)

The Acoustats and ET speakers are the hardest loads but no problem at all.

All on 4 ohm tap.

Cheers

Okay to achieve 2 ohms on the RM-9 all you have to do is hook up the positive lead on the 8 ohm tap and the negative lead on the 4 ohm tap. Do this for each channel. Then connect the corresponding ends to your speaker binding posts. I have done this with my RM-10 so it should work on your amp too. If you go over to the Music Reference frum on Audio Circle you will find more information on light loading.

That is a good tech you taught me Clio09. Will try that. @ Cr0517. Thanks. I did have the MR9 to drive the Acoustat. It sounded really good and nature but lack of bass. I then have to usu Martin Logan sub to get bass. Now the DMT 215 is too much bass so hope that with light loading would help.
Thanks.