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Pioneer QM-800

Pioneer QM-800

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Pioneer QM-800

Used as the power unit incorporated into a professional four-channel stereo system, Pioneer’s Model QM-800 has no peer for versatility and performance.

With a power bandwidth of 10 to 50,000Hz (at 8 ohms, four channels driven), and delivering 25 watts per channel of continuous power (at 8 ohms), this new unit is the key to turning your listening room into a concert hall of total, all-encompassing sound.

The QM-800 is recommended for use with the identically-sized and styled quadraphonic preamplifier, Pioneer Model QC-800.

And this new component may also be used in a two-channel two-way multi-amplifier system, in conjunction with an electronic crossover network, simply by connecting the high range speaker output terminals to the tweeter.

No matter how you size up the QM-800, it becomes the ultimate in four-channel sound: distortion is low, output power is stable, signal-to-noise ratio is 90dB or more.

Quadraphonic stereo now has the power to go with its exciting performance. The Pioneer QM-800: it deserves a listen, a four-channel listen, today.


Power output: 35 watts per channel into 8Ω (stereo), 25W (4 channel)

Frequency response: 5Hz to 80kHz

Total harmonic distortion: 0.5%

Damping factor: 70

Input sensitivity: 0.5V

Signal to noise ratio: 90dB

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 39 x transistors, 37 x diodes

Dimensions: 430 x 145 x 337mm

Weight: 11.5kg

Year: 1972

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