Overview

Meyer Sound’s UPQ‑D1 loudspeaker evolves from the UPQ‑1P and UPQ‑2P product line, now optimized using the advanced amplifier and processing technology that made the LEO® family an award-winning product line. UPQ‑D1 features:

Constant‑Q horn with ‑6 dB points at 80° horizontal x 50° vertical (‑10 dB points at 100° horizontal x 60° vertical)

An innovative, newly designed, highly efficient Class D amplifier with reduced current draw that reproduces any sound with linearity over a wide dynamic range

Optimized frequency and phase response characteristics

Lightened cabinet weight

Redesigned cabinet that retains the original size, grille frame, and rigging options of previous UPQ products

The UPQ‑D1 offers an extremely consistent polar response and a gentle coverage rolloff that extends uniformly out to its ‑10 dB points of 100° by 60°. The horn’s smooth and consistent performance is the result of meticulous research in Meyer Sound’s anechoic chamber, and it exhibits a remarkably consistent beamwidth in both the horizontal and vertical planes. The UPQ‑D1 horn also delivers uniform attenuation for all frequencies outside the specified beamwidth.

In addition to the Constant‑Q horn, the loudspeaker features a low frequency 15‑inch neodymium magnet cone driver and 4‑inch diaphragm compression driver, both designed and manufactured at Meyer Sound’s Berkeley, California headquarters. The UPQ‑D1 is suitable for a range of sound reinforcement applications including as a front‑of‑house main loudspeaker in small‑ to mid‑sized venues, or as a fill loudspeaker in larger systems.

The proprietary two‑channel, class D power amplifier yields a total power output of 2250 W. Audio input routes through electronic crossover and correction filters, as well as through driver‑protection circuitry. Phase‑corrected processing ensures a flat acoustical amplitude and phase response, resulting in an exceptional impulse response and precise imaging.

Each amplifier channel has sophisticated limiters that are easily monitored with the limit LEDs on the unit’s rear panel. The UPQ‑D1’s modular amplifier and processing electronics incorporate Meyer Sound’s Intelligent AC™ power supply, which adapts to any power voltage worldwide and provides soft‑turn on and transient protection. The UPQ‑D1 uses a XLR 3‑pin female input with male loop output connector.

The optional RMS™ remote monitoring system module provides comprehensive monitoring of loudspeaker parameters from a host computer running Compass® software. An optional XLR 5‑pin connector is available to accommodate both balanced audio and RMS signals.

The UPQ‑D1 provides extremely high power output with low distortion in a vented two‑way enclosure. The UPQ‑D1’s durable trapezoidal enclosure has a slightly textured black finish, an integral stand mount receptacle, and versatile rigging end plates. Made of heavy‑duty, high‑strength, corrosion‑resistant 6061‑T6 aluminum, the endplates incorporate threaded M10 attachment points.

QuickFly® rigging options include the MPA‑UPQ pick‑up and array plate and MYA‑UPQ mounting yoke. Other options include Meyer Sound weather protection and custom color finishes for specific cosmetic requirements.

Features and Benefits

• Wide horizontal pattern covers broad listening areas and focused vertical pattern allows precise coverage
• Highly energy efficient amplifier with sophisticated digital signal processing that provides extraordinarily flat amplitude and phase response for tonal accuracy and precise imaging
• Integral stand mount and QuickFly mounting options facilitate rigging
• Constant‑Q horn affords uniform response throughout coverage area
• Exceptional size to power ratio provides application flexibility
• Consistent and predictable performance ensures accurate system design

Applications

• Theatrical sound reinforcement
• Houses of worship
• Portable and installed audio‑visual systems
• Centerfill and sidefill
• Nightclubs