Skip to main content

Meyer Sound Documentation

Specifications
In this section:
meyer-blue-rule-line.png

ACOUSTICAL

ULTRA-X40

ULTRA-X42

Operating Frequency Range2

55 Hz – 19.5 kHz

55 Hz – 19.5 kHz

Frequency Response3

56 Hz – 19 kHz ± 4 dB

58 Hz – 18 kHz ± 4 dB

Phase Response

90 Hz – 19.5 kHz ±45°

90 Hz – 19.5 kHz ±45°

Maximum SPL4

138 dB

140 dB

Linear Peak SPL5

132.5 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)

COVERAGE

Rotatable horn: 110° x 50°

Rotatable horn: 70° x 50°

TRANSDUCERS

Low Frequency

Two 8-inch cone drivers; 4 Ω nominal impedance

High Frequency

One 3-inch diaphragm compression driver connected to a rotatable horn; 8 Ω nominal impedance

AUDIO INPUTS

Type

Differential, electronically balanced

Maximum Common Mode Range

±15 V DC, clamped to earth for voltage transient protection

Connectors

XLR 3-pin female input with male loop output; optional XLR 5-pin connector to accommodate both balanced audio and RMS signals.

Input Impedance

10 kΩ differential between pins 2 and 3

Wiring6

Pin 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 Sensitivity

0 dBV (1.0 V rms) continuous is typically the onset of limiting for noise and music

Input Level

Audio 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.

AMPLIFIER(S)

Type

three-channel, Class-D

Total Output Power7

1950 W peak

THD, IM, TIM

<0.02%

Cooling

Convection

AC POWER

Connector(s)

powerCON 20 input with loop output

Automatic Voltage Selection

90–265 V AC, 50–60 Hz

Safety Rated Voltage Range

100–240 V AC, 50–60 Hz

Turn-on and Turn-off Points

90 V AC turn-on, no turn-off; internal fuse protection above 265 V AC

CURRENT DRAW

Idle Current

0.27 A rms (115 V AC); 0.25 A rms (230 V AC); 0.29 A rms (100 V AC)

Maximum Long-Term Continuous Current (>10 sec)

1.9 A rms (115 V AC); 1.0 A rms (230 V AC); 2.2 A rms (100 V AC)

Burst Current (<1 sec)8

3.1 A rms (115 V AC); 1.5 A rms (230 V AC); 3.4 A rms (100 V AC)

Maximum Instantaneous Peak Current

6.9 A peak (115 V AC); 3.4 A peak (230 V AC); 7.9 A peak (100 V AC)

Inrush Current

<20 A peak

RMS NETWORK (OPTIONAL)

Two-conductor twisted-pair network that reports all operating parameters of amplifiers to system operator’s host computer

PHYSICAL

Dimensions

W: 12.51 in (318 mm) x H: 22.31 in (567 mm) x D: 14 in (356 mm); D with handles: 15.38 in (391 mm)

Weight

52 lb (23.6 kg)

Enclosure(s)

Premium multi-ply birch with slightly textured black finish

Protective Grille

Powder-coated, round-perforated steel

Rigging

11 integrated M8 threaded points; 35 mm Pole Mount with M20 thread; optional accessories for various rigging options (see accessories section).

Notes
meyer-blue-rule-line.png
  1. Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP System Design Tool.

  2. Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics.

  3. Free-field, measured with 1/3 octave frequency resolution at 4 m.

  4. Maximum SPL is the peak measured in free-field at 4 m referred to 1 m using noise.

  5. Linear Peak SPL is measured in free-field at 4 m referred to 1 m. Loudspeaker SPL compression measured with M-noise at the onset of limiting, 2-hour duration, and 50-degree C ambient temperature is < 2 dB.

    M-noise is a full bandwidth (10 Hz–22.5 kHz) test signal developed by Meyer Sound to better measure the loudspeaker’s music performance. It has a constant instantaneous peak level in octave bands, a crest factor that increases with frequency, and a full bandwidth Peak to RMS ratio of 18 dB.

    Pink noise is a full bandwidth test signal with Peak to RMS ratio of 12.5 dB.

    B-noise is a Meyer Sound test signal used to ensure measurements reflect system behavior when reproducing the most common input spectrum, and to verify there is still headroom over pink noise.

  6. Pins 4 and 5 (RMS) only included with XLR 5-pin connector that accommodates both balanced audio and RMS signals.

  7. Pins 4 and 5 (RMS) only included with XLR 5-pin connector that accommodates both balanced audio and RMS signals.

  8. AC power cabling must be of sufficient gauge so that under burst current rms conditions, cable transmission losses do not cause the loudspeaker’s voltage to drop below the specified operating range.