Meyer Sound’s ULTRA-X40 and ULTRA-X42 designs continue the tradition
of the highly successful UPA loudspeakers—so versatile
they have been a universal standard in almost every application for over 35 years.
From touring performances to theme parks, worship venues to theater shows,
and lecture halls to large scale concerts,
Meyer Sound technology has delivered exceptional fidelity with high power, low distortion, and uniformly predictable behavior
Frequency Range 55 Hz – 19.5 kHz
Frequency Response 56 Hz – 19 kHz ± 4 dB
Phase Response90 Hz – 19.5 kHz ±45°
Linear Peak SPL4132.5 dB with 18 dB crest factor (M-noise),130 dB (Pink Noise), 131 dB (B-noise)134 dB with 18.5 dB crest factor (M-noise),132 dB (Pink Noise), 134 dB (B-noise)
Rotatable horn: 110° x 50°
Low FrequencyTwo 8-inch cone drivers; 4 Ω nominal impedance
High FrequencyOne 3-inch diaphragm compression driver connected to a rotatable horn; 8 Ω nominal impedance
TypeDifferential, electronically balanced
Maximum Common Mode Range±15 V DC, clamped to earth for voltage transient protection
ConnectorsXLR 3-pin female input with male loop output; optional XLR 5-pin connector to accommodate both balanced audio and RMS signals.
Input Impedance10 kΩ differential between pins 2 and 3
Wiring5Pin 1: Chassis/earth through 1 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio frequencies
Pin 2: Signal + Pin 3: Signal – Pin 4: RMS (polarity insensitive)Pin 5: RMS (polarity insensitive)
Case: Earth ground and chassis
Nominal Input Sensitivity0 dBV (1.0 V rms) continuous is typically the onset of limiting for noise and music
Input LevelAudio source must be capable of producing of +20 dBV (10 V rms) into 600 Ω to produce the maximum peak SPL over the operating bandwidth of the loudspeaker.
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