Meyer Sound UPM-1 User Manual

UPM-1

Features

Ultra-compact

Lightweight

Efficient high power

Versatile

Uncompromised quality

Even dispersion

Long-term reliability

Applications

Music playback in small clubs

Multi-channel AV playback
Side fill in live music clubs

Stage monitoring

Delayed fill in installations

Paging and announcing

Designed for sound reinforcement

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UltraSeries™
Reinforcement
Loudspeaker

applications requiring minimum size, the
UPM-1 delivers high sound pressure levels
with very low distortion and extremely even
coverage in both axes.

Suitable for a wide range of applica-tions
from music playback and delay fill systems
to stage monitoring, the UPM-1 features
outstanding low-frequency performance in
an unusually compact package. Its ultra­flat frequency response simplifies room
equalization requirements and ensures
high gain-before-feedback.

The loudspeaker consists of two 5-inch
low-frequency cone drivers in a vented
enclosure, and a 2 by 5-inch horn-loaded
piezoelectric high-frequency driver with
passive crossover.

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Inches

The rugged cabinet is easily handled

3

and installed. It has three

⁄8"-16 threaded
rigging points, and may be mounted on a
stand. An optional steel bracket facilitates
mounting in permanent installations.

The UPM-1 system requires a high­quality professional power amplifier cap­able of delivering 125 watts continuously
into 16 ohms, with a signal voltage gain
of 20 dB (minimum) to 30 dB (maximum).

Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
[phone]
FAX [phone]

UPM-1 Specifications

Acoustical – UPM-1/P-1A

Frequency Response

1

Half space 60-20,000 Hz +4 dB
Free air 70-20,000 Hz

Maximum SPL

2

+4 dB

Continuous 108 dB
Peak 118 dB

Distribution Pattern (-6dB points)

Horizontal 80 degrees
Vertical 60 degrees

UPM-1 Loudspeaker

Driver Complement

Low-Frequency (2) MS-5 5-inch cone drivers, 8 ohms per driver
High-Frequency 2" x 5" horn-loaded piezoelectric

Passive Network

Function 3-way crossover and HF driver protection
Capacitor Type Polypropylene

Inductor Type Ferrite core
Cabinet Impedance 16 ohms
Enclosure 0.2 cu. ft. vented, multi-ply Finnish birch
Finish Black textured
Connector Cannon EP-4 or 3-pin XLR (male and female)
Protective Grill Expanded metal screen frame, vinyl damped,

charcoal-grey foam covering
Mounting Points
Physical Dimensions 6

3

⁄8"-16 nut plates

3

⁄4" W x 181⁄8" H x 71⁄8" D

Weight 16 lbs. (7.3 kg)

P-1A Control Electronics Unit

Input Type Balanced (active), 47k ohms
Output Type Push-pull (active), 200 ohms source impedance
Maximum Input/Output Level

3

Unbalanced >+20 dBu

Balanced >+26 dBu
Hum and Noise
Dynamic Range

4

5

<–90 dBV

>105 dB
Sense Input 10K ohms true differential, opto-isolated
Driver Protection Circuitry

Low Frequency RMS Limiter
High Frequency RMS and Peak Limiter

Indicators

Sense Green LED
Limit Red LED

Power Green LED
Controls Level Control, AC on/off switch, Lo Cut Switch
Connectors

Balanced Input/Output 3-pin XLR (A-3),

1

⁄4" RTS phone jacks

Sense Input Banana jacks
Power 120/240V AC, 50/60 Hz (internally switchable)
Physical Dimensions 19" W x 1

3

⁄4" H x 73⁄4" D Standard rack mount

Weight 7 lbs. (3.1 kg)

Note 1:
Measured 1 meter on axis,
pink noise input, in third­octave bands.

Note 2:
“A”-weighted noise input,
loudspeaker driven by
125␣watt (16 ohm rating)
mono amplifier.

Note 3:
1 kHz, 10k

Ω

load, < 0.1%

THD.
Note 4:

“A”-weighted.
Note 5:

Noise floor to maximum
output.