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In Reply to: RE: Analog Planet Visits ARC with 20.7's as their reference posted by TitaniumTroy on June 20, 2016 at 20:21:49
Hi fellow inmates,
I wonder what arc amp was being used to drive the Magnepan 20.7 . I did not see it in the video made by Michael Fremer of Analog Planet .
Mondial
Follow Ups:
The amp driving the 20.7 is the REF150. It is in the video but is easily missed. Look for it when Michael first enters Warren's evaluation room. It is in the back of the room away from the rest of the equipment.
Hi Kentaja ,
Thanks , you have a sharp eye. I was expecting that the 20.7 were driven at least by REF 250 or the REF750 monoblocks. Or their DS450 M Class D amp monoblocks. I know the REF 150 will be able to drive it but w/ authority? Maybe one can get away listening at low level. I thought the 20.7 are hard to drive & needs a lot of current to sound good. But they said planars although hard to drive are purely resistive loads and will work w/ tube amps .
Mondial
I did see it in the video but I already knew where it was at. I visited ARC in February and the set-up has not changed since then.
Warren and I listened to the 20.7 driven by the REF150 for about an hour. Lots of dynamic music played at moderate to loud levels. The REF150 seemed to drive the 20.7 nicely. Warren told me he feels the REF150 is the sweet spot in their current REF series of amps. This is a smallish listening room compared to their main listening room.
I had not heard the large Magnepan for many years and this was my first time listening to the 20.7. An incredible speaker especially when driven by a complete ARC Reference system.
& compared to your Soundlab U1s?
Jeremy
Hi Kentaja ,
I also had the audio research factory tour back in 2007 . When Warren made me listen in the big room , he was using the REF 110 driving Wilson Max 2's . It sounded glorious like wise . But we did not play symphonic spectaculars , just small ensemble music and vocals. During that time Warren's favorite was the REF 110 .
Mondial
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