Operating Instructions — UPQ-D
Full-Size Loudspeakers
Meyer Sound’s UPQ-D Series loudspeakers evolved from the UPQ-1P and UPQ-2P product line, optimized using the advanced amplifier and processing technology that made the LEO® family an award-winning product line. The series includes the following loudspeakers:
UPQ-D1, which has a Constant-Q horn with
-6 dB points at 80° horizontal x 50° vertical
(-10 dB points at 100° horizontal x 60° vertical)
UPQ-D2, which has a narrow symmetrical coverage and a Constant-Q horn with -6 dB points at 50° x 50°
(-10 dB points at 60° x 60°)
UPQ-D3, which has a wide symmetrical coverage and a Constant-Q horn with -6 dB points at
80° horizontal x 80° vertical
(-10 dB points at 100° horizontal x 100° vertical) All of the UPQ-D series feature:
An innovative, 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
A redesigned cabinet that retains the original size, grille frame, and rigging options of previous UPQ products
Each UPQ-D Series loudspeaker offers extremely consistent polar response and gentle coverage rolloffs that extend uniformly out to their 10 dB points. The smooth and consistent performance of all the horns is the result of advanced computer modeling combined with meticulous research in Meyer Sound’s anechoic chamber. They also exhibit remarkably consistent beamwidth in both the horizontal and vertical planes. The UPQ-D Series horns deliver uniform attenuation for all frequencies outside the specified beamwidths.
In addition to the Constant-Q horn, the loudspeakers each feature one low frequency 15-inch neodymium magnet cone driver and one 4-inch diaphragm compression driver, both designed and manufactured at Meyer Sound’s Berkeley, California headquarters. The UPQ-D1 and UPQ-D3 are suitable for a range of sound reinforcement applications including as front-of-house main loudspeakers in small- to mid-sized venues, or as fill loudspeakers in larger systems.
The UPQ-D2 offers a focused beamwidth, which yields precise coverage and minimal interaction with walls and neighboring loudspeakers in arrays. This feature makes it an ideal solution for small to mid-sized venues, houses of worship, theaters, and nightclubs, as either a stand-alone loudspeaker or as part of an array.