Specifications

ACOUSTICAL1 | |
Operating Frequency Range2 | 65 Hz – 18 kHz |
Frequency Response3 | 70 Hz – 18 kHz ±4 dB |
Phase Response | 102 Hz – 18 kHz ±45° |
Linear Peak SPL4 | 116.5 dB with crest factor >16.5 dB (M-noise), 109.5 dB (Pink noise), 112.5 dB (B-noise) |
COVERAGE | |
Horizontal Coverage | 100° |
Vertical Coverage | 100° |
TRANSDUCERS | |
Low Frequency | Two 4-inch cone drivers; 4 Ω nominal impedance |
High Frequency | One 1-inch metal dome tweeter; 8 Ω nominal impedance |
AUDIO INPUT | |
Type | Differential, electronically balanced |
Maximum Common Mode Range | ±5 V DC |
Connectors | Phoenix 5-pin male |
Input Impedance | 10 kΩ differential between Audio (+) and Audio (–) |
Wiring | Pin 1: DC Power (–) Pin 2: DC Power (+) Pin 3: Audio Shield, Chassis/earth Pin 4: Audio (–) Pin 5: Audio (+) |
Nominal Input Sensitivity | -2.0 dBV (0.8 V rms) continuous is typically the onset of limiting for noise and music |
Input Level | Audio source must be capable of producing of +16 dBV (6.31 V rms) into 600 Ω to produce the maximum peak SPL over the operating bandwidth of the loudspeaker. |
AMPLIFIER | |
Type | 3-channel, Class-D with integral advanced digital signal processing |
Total Output Power5 | 500 W peak |
THD, IM, TIM | < 0.02% |
Cooling | Convection |
DC POWER | |
Connector | Phoenix 5-pin male provides power and audio connection (see Wiring above) |
Safety Agency Rated Voltage Range6 | 48 V DC (Meyer Sound IntelligentDC External Power Supply Required) |
DC CURRENT DRAW7 | |
Idle Current | 0.23 A average |
Maximum Long-Term Continuous Current (>10 sec) | 1.00 A average |
Maximum Instantaneous Peak Current | 4.5 A peak |
PHYSICAL | |
Dimensions | W: 4.29 in (109 mm) x H: 15.90 in (404 mm) x D: 5.69 in (144 mm) |
Weight | 14 lb (6.35 kg) |
Enclosure | Aluminum with slightly textured black finish |
IP Rating | Weather-protected version rated IPx5 with properly installed rain hood. See the UP-4slim Operating Instructions available at meyersound.com/documents. |
Protective Grille | Powder-coated, stamped steel with black mesh |
Rigging | Top and bottom aluminum plates with M8 threads |
COMPLIANCE | |
Safety Agency Certification | Standard for audio, video and similar electronic apparatus:
|
EMC Certification | CE and FCC Part 15 Emission Class B emission limits applied. |
Notes

Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP System Design Tool.
Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics.
Free-field, measured with 1/3 octave frequency resolution at 4 m.
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. The presence of a greater-than (>) symbol with regard to crest factor indicates it may be higher depending on EQ and boundary loading.
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.
Peak power based on the maximum unclipped peak voltage the amplifier will produce into the nominal load impedance.
Tolerates voltage drops up to 30% due to long cable runs. Normal operating conditions with recommended cable gauge and length assures peak SPL remains within 2 dB of max SPL specification.
Current draw measured at 48 V DC.