Upgraded from B&W 805 Matrix to 802 Matrix S3, and have some questions...

Posted by David S. (A) on May 11, 2017 at 09:51:59

I'll go ahead and sound like a complete "newbie" here, but I can't find any solid answers.

First question - the nominal impedance of the speakers as a whole:

B&W's owner's manual for the 802 M S2 says: "Nominal 8 Ohm, not falling below 4 Ohm." Their manual for the 802 M S3 says: "Nominal 4 Ohm." Yet? My speakers themselves state 8 Ohm right on the back. Anybody have an impedance curve for the system as a whole?

Second question - if I want to biamp? What kind of impedance are we talking for the treble/mid unit, and for the bass bin? Schematics I see show them being in parallel if the system is run with a single amp/cable - which would suggest they are individually at least 8 ohms...

Not really worth talking about what I'm driving them with - they are in my home system, which is nothing special. But? They are quite a nice step up from the 805 Matrix that they have replaced.

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Topic - Upgraded from B&W 805 Matrix to 802 Matrix S3, and have some questions... - David S. 09:51:59 05/11/17 (19)

RE: Upgraded from B&W 805 Matrix to 802 Matrix S3, and have some questions... - John Elison 13:05:47 05/11/17 (18)

Appreciate the info, but have pretty much entirely dismissed that page - David S. 14:48:57 05/11/17 (17)

FWIW - E-Stat 15:26:14 05/11/17 (3)

Well, that's for sure! - David S. 07:46:40 05/12/17 (2)

RE: Well, that's for sure! - E-Stat 11:50:45 05/12/17 (1)

As for VTL? - David S. 15:17:58 05/12/17 (0)

RE: Appreciate the info, but have pretty much entirely dismissed that page - John Elison 15:20:45 05/11/17 (12)

I'll buy that. But? Their spec sheet still contradicts their owner's manual... - David S. 07:38:25 05/12/17 (11)

Sixth order Butterworth filter? - airtime 10:03:32 05/12/17 (8)

You probably didn't notice... - kootenay 10:26:34 05/12/17 (7)

Isn't that "4th order Bessel" w/o and "6th order Butterworth" w/(active) BAF? (nt) - Steve O 10:47:15 05/12/17 (6)

Not according to the... - kootenay 11:20:33 05/12/17 (5)

Spec inconsistencies... - Steve O 12:29:30 05/12/17 (4)

You're absolutely correct - David S. 15:23:42 05/12/17 (3)

Yes, given B&W's breadth and depth you should be safe in assuming all that... - Steve O 16:02:09 05/12/17 (2)

AND, that's why I won't publish MY measurements... - David S. 08:57:28 05/14/17 (1)

RE: AND, that's why I won't publish MY measurements... - airtime 07:24:27 05/15/17 (0)

I know what you mean... - kootenay 09:58:26 05/12/17 (0)

I think you're best bet is to measure your speaker's impedance... - John Elison 09:20:36 05/12/17 (0)

Upgraded from B&W 805 Matrix to 802 Matrix S3, and have some questions...

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