UP-4XPUltraCompact Loudspeaker

Features & Benefits


Extraordinary fidelity and power capability in an ultracompact package


Metal dome tweeter delivers a smooth high-frequency response


Wide, symmetrical pattern covers a broad listening area


Unique crossover design eliminates combing and yields a consistent midrange response


Exceptional SPL to size ratio


Supports long cable runs with light-gauge cables



Frontfill and under-balcony fill coverage


Theatrical sound reinforcement and special effects


Portable and installed AV systems


Compact voice reinforcement systems

The UP-4XP ultracompact loudspeaker, with IntelligentDC technology, is ideally suited for applications requiring a small, inconspicuous cabinet that also delivers high sound pressure levels, low distortion, and uniform directional control. The self- powered UP-4XP offers exceptional audio performance in a compact package with the advantages of a remote power supply. As a standalone loudspeaker, the UP-4XP can be used for vocal reinforcement, frontfill coverage, and delay coverage for under- balcony applications. The UP-4XP can also be paired with an optional subwoofer to create a full-range system.

The UP-4XP boasts a wide operating frequency range of 66 Hz to 18 kHz and a maximum peak SPL of 121 dB, with very low distortion. The unit's high-frequency section includes a 1-inch metal dome tweeter on a constant-directivity, high-frequency horn with a 100-degree beamwidth. The low/ mid-frequency section includes two 4-inch cone transducers that work in parallel at low frequencies – delivering a combined acoustic output – with one of the drivers rolling off at higher frequencies to prevent interference (due to comb filtering effects) in the crossover region. The proprietary UP-4XP drivers, which are manufactured at Meyer Sound's factory in Berkeley, California, are powered by three channels of onboard power amplification that include an active crossover, driver protection, and frequency and phase correction circuitry.

With IntelligentDC technology, the UP-4XP receives DC power and balanced audio from a single loudspeaker connector, available as PhoenixTM 5-pin male or sealed SwitchCraft® EN3TM 5-pin male. Powering the unit from an external source eliminates the need for wiring conduits while still preserving the advantages of self-powered systems. The UP-4XP's amplifier and signal-processing circuits store DC power and tolerate voltage drops, thereby accommodating light-gauge cables and lengthy cable runs.

The UP-4XP requires an external MPS-488HP IntelligentDC power supply. The single-space 19-inch rack unit distributes DC power and balanced audio to up to eight UP-4XP loudspeakers, or other Meyer Sound IntelligentDC loudspeakers. Composite multiconductor cables, such as Belden® 1502 or equivalent, can deliver both DC power and balanced to loudspeakers at cable lengths up to 150 feet with just 1 dB of loss in peak SPL using 18 AWG wire. Longer cable lengths are possible with heavier wire gauges. Meyer Sound's RMS remote monitoring system is optionally available for the MPS-488HP.

The UP-4XP's durable cabinet is coated with a black textured finish and includes top and bottom mounting plates with 3/8”-16 or metric M10 threaded nuts. QuickFly mounting options include the MUB-UP4 U-bracket, MYA-UP4 cradle-style yoke, and 1-3/8” (35 mm) diameter pole-mount adaptor.

Other options include weather protection (with the sealed EN3 connector) and custom color finishes for installations and applications with specific cosmetic requirements.


QuickFly Rigging


UP-4XP with MUB-UP4 in a ceiling mount orientation

UP-4XP with MYA-UP4 yoke



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