UPL-1 High Definition Self-Powered Loudspeaker System 90°H 40°V 14" wide 20 3/4" tall 16" deep 70 lbs (32 kg) Max SPL (Peak): 124 dB Freq Range: 32-20 kHz
Features Self-powered Two-way biamplified Electronically corrected Individually factory-aligned Patented horn driver Compound-flare horn Patents pending	Applications Live music clubs Theatrical sound Conference rooms Portable paging systems Foreground music playback

The Meyer Sound UPL-1 is a self-contained, high-definition powered loudspeaker that is a 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 10-inch 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 high-frequency horn driver is of an entirely new configuration, employing a titantium dome 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.

UPL-1 Specifications

You can download this product data sheet in Adobe Acrobat format.

Acoustical (each speaker)
Frequency Response 1	±2 dB from 50 Hz to 18 kHz 2; -3 dB at 32 Hz and 20 kHz
Maximum SPL	124 dB peak @ 1 meter
Signal-to-Noise Ratio	> 100 dB
Coverage Angle	90° horizontal by 40° vertical
Audio Input
Type	Electronically balanced, 10k ohms impedance
Connector	XLR (A-3) female
Nominal Input Level	+4 dBu or -10 dBV, switchable
Amplifiers
Type	Complementary power MOSFET output stages
Power Output
Low Frequency	200 watts burst capability
High Frequency	100 watts burst capability
THD, IM, TIM	< .02 %
Crossover	Optimized pole-zero filter combinations to complement transducer response and to achieve acoustical transparency and flat phase 3
Transducers
Low Frequency	10" diameter cone (2" voice coil)
High Frequency	1" titanium dome horn driver (1" voice coil) 4
Power	3-pin IEC male receptacle. Voltage selector switch for 100/120/220/240 VAC, 50 or 60 Hz (accepts voltages from 90 to 260 VAC), 175 W maximum.
Physical
Dimensions	14" W x 20 3/4" H x 14" D (+ 2 1/2" additional depth for amplifier chassis and 2" for grill with foam)
Weight	70 lbs (32 kg)
Rigging	3/8"-16 nut plates, top and bottom
Grill	Perforated metal screen, grey foam covering
Finish	Black textured

Footnotes:

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 high-frequency horn axis. Acoustical decibels are specified re 20 uPa.

You can download this product data sheet in Adobe Acrobat format.