Stereo Power Amplifier 150W

Class-A Hybrid Stereo Poweramplifier

Hybrid Stereo Poweramplifier drawing from the legendary SP-331, the new SP-332 power amplifier was developed. Two additional 6N16 tubes were added to the input section to make the sound signal more warm dn natural. The VU-meters with user selectable colored backlighting complete the timeless design.

In line with the new hybrid pre-amplifier SA-32, we have also revised the power amplifier SP-331.
The result is the SP-332. At first glance immediately recognizable – the new VU meters on the front panel. The color backlight and the status LEDs can be switched between red, blue, green and white using a sliding switch on the back.
Inside, two 6N16 tubes working in differential push-pull form the input stage, giving the sound signal a certain warmth and naturalness. In the transistor output stage there are 8 large transistors available for the final amplification. These generate 150 watts per channel at 8 ohms – enough power to effortlessly drive even critical speakers
In the power supply, a 500W toroidal transformer provides the necessary power. Elcos with a capacity of 80,000 µF “buffer” them. Transferred to the sound creates a “dry”, powerful and deep bass fundament. The stabilization of the voltage is handled by a 6N15 tube.
Symmetrical and asymmetrical connections are available for connecting a preamplifier.

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Amplifier Features

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Technical Specifications:

Frequency Response:  20 Hz – 20 kHz +/- 0.5 dB
Nominal Output Power RMS / 8 Ohm:  2 x 150 Watt
Nominal Output Power RMS / 4 Ohm:  2 x 250 Watt
Harmonic Distortion:  < 0.1 % (1 kHz, 1 Watt)
Input Sensitivity:  1.35 Volt
Signal-Noise Ratio:  > 91 dB
Input Impedance:  47 kOhm
Max. Power Consumption:  531 Watt
Inputs:  1 x Stereo RCA, 1 x Stereo XLR, 1 x 3.5 mm Jack (Power Control)
Outputs:  2 x 4 Speaker Terminal, 1 x 3.5 mm Jack (Power Control)
Tubes:  2 x 6N16, 1 x 6N15
Colour:  Black / Silver
Weight:  21 kg
Dimensions (WxHxD):  430 x 165 x 430 mm