The loudspeaker shall be a self-powered, full-range system. The transducers shall consist of two 5-inch diameter cone drivers and a 1-inch metal dome tweeter.
The loudspeaker system shall incorporate internal processing electronics and a two-channel amplifier. Processing functions shall include equalization, phase correction and signal division
and driver protection for the high- and low-frequency sections. The crossover point shall be 1.3 kHz. Each amplifier channel shall be class AB/bridged with complementary MOSFET
output stages. Burst capability shall be 350 watts total with nominal 4 ohms low channel and 8 ohms high channel resistive load. Distortion (THD, IM, TIM) shall not exceed 0.02%.
Performance specifications for a typical production unit shall be as follows, measured at 1/3 octave resolution at 4 meters. Operating frequency range shall be 75 Hz to 20 kHz. Phase
response shall be ±60° from 300 Hz to 18 kHz. Maximum SPL Notes: shall be 123 dB at 1 meter. Horizontal coverage and vertical coverage shall both be 100 degrees.
The audio input shall be electronically balanced with a 10 kOhm impedance and accept a nominal 0 dBV (1 V rms, 1.4 V pk) signal. Connector shall be XLR (A-3) type female with
parallel looping male. RF filtering shall be provided, and CMRR shall be greater than 50 dB from 50 Hz to 500 kHz. Two input module options shall be offered: one with loop-through output and another with an attenuator and polarity reversal switch in addition to the loop-through output.
Two versions shall be available: a switchable 115/230 V and a non-switchable 100 V-only version. The voltage selection needs to be manually selected. The internal power supply
shall perform EMI filtering, soft current turn-on and surge suppression. Powering requirements shall be nominal 100 (100 V version) and 110 or 230 V AC (115/230 version) line current
at 50 or 60 Hz. UL and CE operating voltage range shall be 115 V AC - 240 V AC. Ultimate short-term peak current draw shall be 2.9 A at 115 V AC, 2 A at 230 V AC and 3.3 A at 100 V AC. Current inrush during turn-on shall not exceed 18 A at 115 V AC. AC power connectors shall be PowerCon with looping output. The loudspeaker system shall provide facilities for installing Meyer Sound’s optional RMS™ remote monitoring system.
All loudspeaker components shall be mounted in an acoustically vented trapezoidal enclosure constructed of premium birch plywood with a black textured finish. The front protective grille
shall be hex-stamped steel covered by charcoal gray foam. Dimensions shall be 6.85" wide x 18" high x 7.70" deep (174 mm x 457 mm x 196 mm). Weight shall be 21 lbs (9.53 kg). Rigging
shall be three 3/8"-16 or M10 nut plates.
The loudspeaker shall be the Meyer Sound UPM-1P.
Keyword: Loudspeaker, Loudspeakers