D-series Quad Power AmplifiersQuad 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.DetailsSwitchable bridge or parallel mono modesSwitchable high and low pass filtersFully balanced audio signal pathFull audio and power protection with peak limiterConfigurable as a quad, stereo or 2.1 systemSpecificationsPower supply 220-240Vac, 50/60Hz (IEC)Modes 2 x Stereo, Parallel (mono), Bridge (mono)Input sensitivity 0dB = 0.775VrmsInput connections 4 x XLR femaleSound output 4 x SPK connectorsDimensions 482 x 248 x 44mm (without feet)Crossover Input A 120Hz LPF and C+D 120Hz HPF (all switchable)

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