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Meyer Sound Documentation

Specifications
In this section:
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ACOUSTICAL2

ULTRA-X20

ULTRA-X22

ULTRA-X23

Operating Frequency Range3

60 Hz – 18 kHz

60 Hz – 18 kHz

60 Hz – 18 kHz

Frequency Response4

65 Hz – 17.5 kHz ± 4 dB

65 Hz – 17.5 kHz ± 4 dB

65 Hz – 17.5 kHz ± 4 dB

Phase Response

95 Hz – 18 kHz ±45°

95 Hz – 18 kHz ±45°

95 Hz – 18 kHz ±45°

Linear Peak SPL5

127 dB with 20 dB crest factor (M-noise),

123.5 dB (Pink Noise),

125.5 dB (B-noise)

128.5 dB with 20 dB crest factor (M-noise),

123.5 dB (Pink Noise), 125 dB (B-noise)

127.5 dB with 20 dB crest factor (M-noise),

124 dB (Pink Noise),

125.5 dB (B-noise)

COVERAGE

Rotatable horn: 110° x 50°

Rotatable horn: 80° x 50°

110° x 110°

TRANSDUCERS

Low Frequency

Two 5-inch cone drivers; 6 Ω nominal impedance

High Frequency

One 2-inch diaphragm compression driver connected to a rotatable horn; 8 Ω nominal impedance

AUDIO INPUT

ANALOG AUDIO VERSION

DIGITAL AUDIO VERSION

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 connectors to accommodate both balanced audio and RMS signals;

XLR 3-pin TOP (Total Outdoor Protection) connectors on weather-protected units only.

etherCON TOP

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.

Digital Format

Milan Certified

AMPLIFIER

Type

Three-channel, Class-D

Total Output Power7

860 W peak

THD, IM, TIM

<0.02%

Cooling

Convection

AC POWER

Connector

powerCON 20 input with loop output; powerCON TRUE1 TOP with loop output on digital and weather-protected units

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

0.15 A rms (115 V AC); 0.13 A rms (230 V AC); 0.16 A rms (100 V AC)

Maximum Long-Term Continuous Current (>10 sec)

0.9 A rms (115 V AC); 0.5 A rms (230 V AC); 1.1 A rms (100 V AC)

Burst Current (<1 sec)8

1.6 A rms (115 V AC); 0.8 A rms (230 V AC); 1.8 A rms (100 V AC)

Maximum Instantaneous Peak Current

3.5 A peak (115 V AC); 1.8 A peak (230 V AC); 4.1 A peak (100 V AC)

Inrush Current

< 20 A peak

REMOTE MONITORING

ANALOG AUDIO VERSION9

DIGITAL AUDIO VERSION

Optional RMS module: two-conductor twisted-pair network that reports all operating parameters of amplifiers to system operator’s host computer via the RMServer hardware unit.

Integrated monitoring via Compass Control Software

PHYSICAL

Dimensions

W: 7.44 in (189 mm) x H: 19.04 in (484 mm) x D: 8.66 in (220 mm)

Weight

27 lb (12.3 kg)

Enclosure

Aluminum with slightly textured black finish

IP Rating

Weather-protected version rated IP54. See the ULTRA-X20 Operating Instructions for details.

Protective Grille

Powder-coated, round-perforated steel

Rigging

Two integrated M8 threaded points on each end; optional accessories for various rigging options (see accessories section); four M6 threaded holes with 5-inch by 2.75-inch (127 mm by 70 mm) hole pattern on the rear for use with third-party wall mounts.

Notes
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  1. Milan is a trademark of the Avnu Alliance (avnu.org).

  2. Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP System Design Tool.

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

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

  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 °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. The 5-pin XLR connector is not available on weather-protected models.

  7. Peak power based on the maximum unclipped peak voltage the amplifier will produce into the nominal load impedance.

  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.

  9. RMServer hardware unit required and sold separately.