Operating Instructions
Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
UPL-1 & UPL-2
High Definition
Reinforcement
Loudspeakers
Specifications
Acoustical
Frequency Response
1
Phase Response
1
Maximum SPL
Signal-to-Noise Ratio
Coverage Angle
UPL-1
UPL-2
Electrical
Input Type
Nominal Input Level
Amplifier Type
Power Output
Low Frequency
High Frequency
THD, IM, TIM
Crossover
Power
Physical
Input Connector
Power Inlet
Driver Complement
Low Frequency
High Frequency
Enclosure
Finish
Dimensions
Weight
Protective Grill
Rigging
±
2 dB from 50 Hz to 18 kHz
2
-3 dB at 32 Hz and 20 kHz
+60
°
, -0
°
from 120 Hz to 18 kHz
124 dB peak @ 1 meter
> 100 dB
90
°
horizontal by 40
°
vertical
60
°
horizontal and vertical
Electronically balanced, 10k ohms impedance
Accepts 4 dBu or -10 dBV, switchable
Complementary power MOSFET output stages
200 watts burst capability
100 watts burst capability
< .02 %
Optimized pole-zero filter combinations to complement
transducer response and to achieve acoustical transpar-
ency and flat phase
3
Voltage selector switch for 100/120/220/240 VAC, 50 or
60 Hz (accepts voltages from 90 to 260 VAC), 175 W
maximum
XLR (A-3) female
3-pin IEC male receptacle
10" diameter cone (2" voice coil)
1" titanium dome horn driver (1" voice coil)
4
1.6 cu. ft. vented, multi-ply Finnish birch
Black textured
14" W x 20
3
⁄
4
" H x 14" D (+ 2
1
⁄
2
" additional depth for
amplifier chassis and 2" for grill frame with foam)
70 lbs (32 kg)
Perforated metal screen, grey foam covering
3
/
8
"-16 nut plates, top and bottom
Maximum
Continuous SPL
by Frequency
90
16k
8k
4k
2k
1k
500
250
125
62
30
100
110
120
Frequency (Hz)
Continuous SPL (dB)
Notes:
1. Subject to room loading.
Specified for 8 feet actual
distance between loud-
speaker cabinet and a single
boundary surface, measured
with one-third octave fre-
quency resolution in fixed
ISO bands.
2. Specified with grill removed.
Response tolerance
±
3 dB
with grill screen and foam in
place.
3. U.S. patent #5,185,801 (addi-
tional patent pending).
4. U.S. patent #4,152,552.
Unless otherwise specified, all
acoustical measurements are
performed at 1 meter from front
baffle on high-frequency horn
axis. Acoustical decibels are
specified re 20
µ
Pa.
05.553.006.01 B
© Meyer Sound, 1995.
