Bi-Amping Options B&W 801 Series 2


New to me Bowers & Wilkins floor-standing full-range monitors with two sets of binding posts.
Currently have dual MC252 solid-state amps (with autoformers) connected as follows: (1) to both bass drivers and (1) to midrange and treble drivers.

Meanwhile, I have a Rogue Audio Stereo 100 sitting idle (although I could hook it up to my vintage Warfedales). I’m wondering if I would be better served by bridging both the MC252s and putting them both on bass duty (500 Watts to each driver), and put the Stereo 100 to use driving the midrange and tweeters. What do you think?

Especially interested to hear from someone with experience driving this particular speaker, which sounds wonderful, by the way. My system is fully described (but not well pictured) under my profile in Virtual Systems. And, if anyone has a lead on an original Bass Alignment filter, I’m all ears.

128x128oldrooney

Showing 6 responses by tomcarr

I've got the 803 D3s. Just like mine yours dip down to 3 ohms.

They need current. The more the better.

You need the headroom for dynamic peaks.

Strap the Macs for mono for the bass and use the Rogue for the mid/treble.

B&W states a minimum impedance of 3 ohms.

I've heard my 803 D3 with amps rated at 150/300 w/ch and amps rated at 600 w/ch.

They sound better with higher power amps.

They love current. They devour it and want more!

You can't have too much power, but you can sure have too little.

@erik_squires Hi Erik.

Paul McGowan did a video on horizontal and vertical 

bi-amping. He said horizontal configuration is better for using different amps, one for the mids/tweeters and one for the woofers.

He said vertical configuration is better for identical amps, one for the left channel and one for the right channel.

OP- I LOVE the idea of using both 252s for your 801s!

Do it, and report your impressions.

I'm betting the sound will be effortless, and sublime!

Where one amp drives the left speaker and the other amp drives the right speaker.