Meyer Sound UPL-1 User Manual

FEATURES

Self-powered

Two way bi-amplified

2A

Electronically corrected

Individually
factory-aligned

Patented horn driver

UPL-1

High Definition Reinforcement Loudspeaker

Modified Radial horn

Superior
engineering
for the art
and science
of sound.

The Meyer Sound UPL-1 is a
self-contained, high-definition
powered loudspeaker that is
suitable for a wide variety of
high-quality sound reinforce­ment applications. It is
optimized to approximate a
true point-source radiator
within its coverage area, and
features a frequency response
of ±2 dB from 50Hz to 18 kHz.

The UPL-1 comprises a 10­inch cone low-frequency driver
and 1-inch high-frequency
driver with 90° by 40° modified

radial horn housed in a vented
cabinet. An active crossover,
optimized pole-zero response
correction filters, loud­speaker element protection
circuitry and dual power
amplifiers are built directly
into the enclosure.

Both UPL-1 drivers are of
a proprietary design and are
individually factory-tested for
maximum linearity. The high­frequency horn driver is of an
entirely new configuration,
employing a titanium dome

PATENTED

and fabric suspension in a
patented, low distortion design
(U.S. patent number
4,152,552). It is coupled to
a modified radial horn that
provides excellent directivity
control with wide horizontal
high-frequency coverage.

The UPL-1’s power am­plifiers utilize complementary
power MOSFET output stages
in a class AB configuration.
Input sensitivity is switchable
to either +4 dBu or -10 dBV.

Meyer
Sound

UPL-1 SPECIFICATIONS

Acoustical

(each loudspeaker)

Coverage

Crossover

Transducers

Audio Input

Amplifiers

AC-Power

Physical

Notes

Frequency Response

Phase Response

Maximum SPL

Dynamic Range

(-6 dB points)

Low Frequency

High Frequency

Type

Connector

Nominal Input Level

Type

Burst Capability (Low Frequency)

Burst Capability (High Frequency)

THD, IM, TIM

Dimensions

Weight

Finish

Protective Grill

Rigging

1

±2 dB from 50 Hz to 18 kHz

2

-3 dB at 32 Hz and 20 kHz
124 dB peak @ 1 meter
> 100 dB

90° H; 40° V

Optimized pole-zero filter combinations to complement transducer
response and to achieve acoustical transparency and flat phase

10” diameter MS-15 cone (2)
1” titanium dome horn driver (1” voice coil)

4

10kΩ impedance, electronically balanced
XLR (A-3) female
+4 dBu or -10 dBv, switchable

Complementary power MOSFET output stages
200 watts
100 watts
< .02 %

3-pin IEC 320 male inlet. Voltage selector switch for 100/120/220/
240 VAC, 50 or 60 Hz (accepts voltages from
90 to 260 VAC), 175 W maximum.

14" W x 20

3

⁄4" H x 14" D (+ 2 1⁄2" additional depth for
amplifier chassis and 2" for grill with foam)
70 lbs (32 kg)
Black textured
Perforated metal screen, grey foam covering

3

/8"-16 nut plates, top and bottom

1. Subject to room loading. Specified for 8 feet actual
distance between UPL-1 cabinet and a single boundary
surface, measured with one-third octave frequency
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 (additional patent pending).

4. U.S. patent #4,152,552.
* Unless otherwise specified, all acoustical measurements
are performed at 1 meter from front baffle on highfrequency
horn axis. Acoustical decibels are specified re 20 µPa.

Meyer Sound Laboratories

has devoted itself to

designing, manufacturing,

and refining components

3

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.

PHYSICAL DIMENSIONS CONTINUOUS OUTPUT

ALL UNITS IN INCHES

14.00"

20.75"

2.0"

8.00"

8.88"

16.42"

15.54"

14.00"

9.20"

8.50"

13.20"

16k

8k

4k

2k

1k

500

250

125

62

30

Frequency (Hz)

100 110 120

90

LISTED

3K59

U

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®®

COMMERCIAL

AUDIO SYSTEM

Made by Meyer Sound, Berkeley, CA, USA

European Office:

Meyer Sound Europe
Dalston House
39-49 Hastings Street
Luton Bedfordshire
England, LU1 5BE

UPL-1 - 04.553.002.01B

Meyer Sound Laboratories, Inc.

2832 San Pablo Avenue
Berkeley, CA 94702
tel: [phone]
fax: [phone]
e-mail: [e-mail]
http: www.meyersound.com

© 1998 Meyer Sound Laboratories, Inc.

All rights reserved