The QMP Mono Power Amplifier is a by-product of the earlier 909 Mono with enhancements distinctly noticeable in amplifier construction and circuitry, and is capable of producing an accurately balanced XLR. Moreover, the new Elite QMP now incorporates a ‘current dumping’ feature allowing for a cleaner, more versatile performance. The QMP Amplifier is a bridged mono bloc version of the QUAD QSP Stereo Power Amplifier and can be used used in conjunction with it.
Current Dumping - The QMP Amplifier incorporates QUAD's patented current dumping technology developed by QUAD's founder Peter Walker, and is one of the finest audio amplifiers available. One of the few truly innovative amplifier topologies, it is essentially a combination of two amplifiers to give the best of both in each channel. The current dumping circuit like the Quad QMP Amplifier consists of a very high quality class A low-power amp which provides the details of the signal, while a high-power current dumping section provides the grip to keep the speakers under control. These two amplifier circuits are combined with a precision network to perfectly impose the finesse of the class A output onto the power of the current dumper. This technology eliminates the problems of crossover distortion, quiescent current adjustment, thermal tracking and transistor matching. There are no internal adjustments or alignments and the choice of power transistor types is less restrictive.
|General Description||Mono Power Amplifier|
|Design Philosophy and Core Technology||Current Dumping|
|Output Power||260W RMS, 8Ω|
|Frequency Response||10Hz – 50kHz (+/-1dB)|
|Total Harmonic Distortion||‹0.005% at 100W, 1kHz|
|‹0.05% at 70W, 20kHz|
|Signal to Noise Ratio||>105dB (20Hz – 20kHz)|
|Input Sensitivity (RCA)||845mV (for max output)|
|Input Impedance (RCA)||15kΩ|
|AMPBUS Input||AMPBUS / XLR|
|AMPBUS Input Sensitivity||2.0V (for max output)|
|AMPBUS Input Impedance||10kΩ|
|Main Power On/Off Switch||Yes|
|Dimensions (H x W x D)||184 x 319 x 312 mm|