In article , Keith G wrote:
....of speakers.

(OK, wot were *you* thinking of ??)

See http://www.apah69.dsl.pipex.com/keit...w/speakers.jpg

I'm auditioning a pair of B&W DM2As ...

Nice driver line-up for the day and eighth-wave transmission line loading
(compare for example to some IMF TLS designs).

"Sensitivity - 13 watts into nominal 8 ohm impedance required to produce a
sound pressure level of 95 dB at one metre at 400 Hz."

What does this translate into?

About 84 dB for normal sensitivity specifications. (Reference is SPL
at 1 metre for a nominal 1 Watt: 13 Watts is +11 dB ref 1 Watt so you
have to take 11 dB from the 95 dB to normalize it).

The brochure in the B&W archive gives 9.2 V RMS pink noise for 95 dB
SPL which translates to a sensitivity of about 85 dB at 2.83 V RMS
(the nominal 1 Watt/8 ohms).

I already know they are pretty sensitive ...

I have to say that 84 - 85 dB is not what I usually consider as sensitive
although the impedance curve is undoubtedly valve-friendly.

--
John Phillips