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B&W 804s + Atma-Sphere M60 MkIII.2

I am setting a second audio room where I got B&W 804s. I just heard Atma-Sphere M60 with a Mervil VSM, the soundwas excellent. The details and sound stage is fantastic. I don't have a chance to try it with my B&W 804s that's why I would like to ask you whether the matching system between 804s and MA60 would work out? I mean in term of power and ease of driving 804s?! I know 804s requires some serious power. I tried it with Denon POA-A1HDCI for home media room and was just ok! besides it sounds very good with Mcintosh MC402 which is no wonder!
I like the sound of Atma-Sphere M60 MkIII.2 and always wanted to have an OTL amp but the question relies on low impedance ability of these amp?! 804s nominal impedance is 8ohm but it goes down to 3.5ohm for lower mid range frequency. I also thought to associate a Velodyne sub for getting more bass.

I would appreciate your feedback.

cheers,
Michel.
michelzay

Showing 4 responses by swampwalker

swampwalker's avatar
swampwalker
5,138 posts
 
Call Ralph at Atmasphere. He has heard his amps on most speakers out there and will give you the straight poop. One of the real good guys in this field.
swampwalker's avatar
swampwalker
5,138 posts
 
Lewinskih01- you make a good point, although many people report excellent results running them single-ended either w a conventional RCA termination (w shorting pin in the XLR jack) or w an XLR-terminated (aka pseudo-balanced) connection.
Not to get too far off point, but can you tell us whether you are running stereo subs or dual mono subs. If the latter, do you think that the same "rules" apply to stereo subs.
swampwalker's avatar
swampwalker
5,138 posts
 
"I wasn't aware the Supremas had passive subs."
Yep, two 8" isobarik loaded in each lower cabinet. You can very their crossover to the Royal Master monitors w a jumper, 50 or 60 hz, IIRC. I've been driving the monitors w VAC Ren 30/30 or Doshi-modified Lectron JH-50 and using a variety of ss amps on the sub, crossing over actively w NHT X-1.
swampwalker's avatar
swampwalker
5,138 posts
 
Thx, Lewinskih01. I am interested because my Ref 3A Supremas have passive subs and I have always wondered if I should drive the sub cabinets with a stereo or mono signal, downstream from an active crossover/bass management device.
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