Quad digital power amplifier in a lightweight 1U rack-mountable format. An energy-efficient switch-mode power section and class-D amplifiication circuit delivers accurate power-on-demand to four independent speaker outputs. Proprietary cool guide technology provides stable temperature management for dependable operation. Each pair of output channels can be separately parallel switched or bridged as a full or part stereo amplifier configuration. For channel A, there is a switchable 120Hz low-pass filter for use with subwoofers and a channels C and D have a switchable stereo pair of 120Hz high pass filters to effectively focus power in full-range cabs operating as mid-tops in conjunction with sub-woofers. For permanent or mobile installations, the D-series offers an invaluable and flexible problem solver for audio designers and sound engineers.Power supply[tab]220-240Vac, 50/60Hz (IEC)[br]Modes[tab]2 x Stereo, Parallel (mono), Bridge (mono)[br]Input sensitivity[tab]0dB = 0.775Vrms[br]Inputs[tab]4 x XLR female[br]Sound output[tab]4 x SPK connectors[br]Crossover[tab]Input A 120Hz LPF and C+D 120Hz HPF (all switchable)Output : rms @ 4 Ohms[tab]4 x 500W[br]Output : rms @ 8 Ohms[tab]4 x 300W[br]Bridge power @ 8 Ohms[tab]2 x 900W (both pairs of channels bridged)[br]Weight[tab]4.860kg[br]Dimensions[tab]482 x 308 x 44mm (without feet)[br]Power supply[tab]100-240Vac, 50/60Hz (IEC)

D4500 Quad Amplifier 4 X 500wrms