user manual
QLight™ DP series
AMPLIFIER MODULES
Power Amplifiers
The digital power amplifiers used in QLight™ DP series loudspeakers are conservatively rated and designed with sufficient headroom to handle large signal transients without
AC Power Requirements
QLight™ DP series loudspeakers are equipped with Neutrik PowerCon® AC mains connectors which mate with the power cord supplied with your unit. They operate with mains voltages in the range from 100 to 240 volts. When connected to a mains supply the digital power amplifier modules will automatically detect the mains supply present. The mains fuse is a 10A 20mm 230V
Cooling
The Class D amplifiers are among the most efficient in their class, with operating efficiencies greater than 90%. Conventional heatsinks are not required to cool the amplifiers; they are cooled by the action of convection from the panel of the amplifier module at the rear of the enclosure. It is important to leave space around and especially above the rear panel to allow the convection of heat away from the loudspeaker. This cooling effect is sufficient to maintain the amplifiers within a normal operating temperature range.
In an ambient temperature of 25º C the rear panel of the unit can reach temperatures of 55º C and will feel warm to the touch. This is perfectly acceptable and is considered normal operation.
Audio Input
The signal inputs are fully balanced, with an input impedance of 10kΩ. The female input XLR connector is wired pin 2 hot (+ve), pin 3 cold
QLight DP series manual page 17