Architectural and
Engineering Specifications 650-R2/B-2EX
Meyer Sound Laboratories has
devoted itself to designing,
manufacturing, and refining com-
ponents that deliver superb sonic
reproduction. Every part of every
component is designed and built to
exacting specifications and
undergoes rigorous, comprehensive
testing in the laboratories.
Research remains an integral,
driving force behind all production.
Meyer strives for sound quality that
is predictable and neutral over an
extended lifetime and across an
extended range.
© 1994 Meyer Sound
04057034. 01C2
sensitivity, 101 dB SPL measured with
1 watt of pink noise, one meter on axis;
frequency response, 30 Hz to 100 Hz plus
or minus 4 dB measured with
1
⁄
3
octave
pink noise, one meter on axis; output of
130 dB SPL one meter on axis with peaks
of 135 dB SPL when driven with weighted
noise. Total harmonic distortion shall
be less than 3% at 130 dB SPL one meter
on axis at 60 Hz.
Speaker enclosure dimensions are
45" H x 30" W x 22
1
⁄2
" D, weight 176 lbs
(79.8 kg).
Control Electronics Unit dimensions
are 19" W x 1
3
⁄
4
" H x & 7
3
⁄
4
" D, weight 8 lbs
(3.6 kg).
The speaker system shall be the Meyer
Sound 650-R2.
The Control Electronics Unit shall be
the Meyer Sound B-2EX.
The low frequency speaker system shall
consist of two 18" low frequency cone
loudspeakers front-mounted in a heavily
braced hardwood-plywood bass-reflex
direct-radiating enclosure, and a separate
Control Electronics Unit.
The Control Electronics Unit shall
contain a power supply capable of operat-
ing from a 120/240V AC, 50/60 Hz line,
a master level control, an active crossover
at 95 Hz, a switchable excursion limiter,
an RMS limiter for speaker protection, and
two active balanced summing inputs. The
Control Electronics Unit shall meet the
following criteria: total harmonic distor-
tion less than 0.1%; “A” weighted noise
level 110 dB below rated output of
+26␣dBu.
The speaker system, its companion
Control Electronics Unit, and a power
amplifier rated at 400 watts into 4 ohms
shall meet the following criteria: pressure
Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
(510) 486-1166
FAX (510) 486-8356
Sound
engineering
for the art
and science
of sound.
