Octave RE 320 Power Amplifier

The Octave RE 320 stereo power amplifier marks a significant evolution of this model series.

Actually it was obvious:

In the new RE 320, the successful SE technology has also been transferred to a compact stereo power amplifier. With resounding success!


The heart of the amplifier, the actual amplifier stage, is completely revised. Because for the first time the technical details of the Jubilee SE models have been utilized.

This SE technology was previously implemented in the new Octave integrated amplifier flagship V 80 SE and is characterized by significantly increased stability and extreme linearity. As the experienced author Roland Kraft clearly stated in the test of the power amplifier in Stereoplay 03/2016: "We know of very few tube amplifiers that are so uncritical when it comes to loudspeakers and are therefore able to develop their sonic capabilities in practically any combination ." (You can read the full test here).

The concept is based on the modern KT 150 power pentodes. The extremely powerful KT 150 enable a maximum output power of approx. 2 x 130 W with two tubes in push-pull mode. The performance bandwidth of the RE 320 extends from 5 Hz to 85 kHz. The pulse power can even reach over 200 watts. This type of power development guarantees inimitable sovereignty, offers enormous reserves and represents the effortless dynamics that characterize Octave.

A variety of modern and innovative detailed solutions guarantee a consistent level over the years. For example, the interference signal level of more than -110 dB is so low that no hum or noise can be heard even with high-efficiency loudspeakers. Many practical features such as the fine adjustment of the BIAS, the power switch for different tube types, the modern ECO mode, the connection for the external black box and the switchable RCA and XLR inputs make the stereo power amplifier a universal playing partner in this type of device.

The RE 320 impresses with a sound that is stable and reliable on all loads. Above all, the effortlessness of music reproduction is impressive and thanks to enormous control, the sound image always remains tidy, believable in its dimensions and shows even the finest facets with an irresistible naturalness.

Of course, the RE 320 has power management with soft start electronics, the protection system and, like all power and integrated amplifiers, the Eco Mode, a BIAS setting and display, the power selector and a (Super) Black Box Connection.


Super Black Box

Like the Black Box, the Super Black Box is also an external power supply amplifier for the integrated amplifiers V 40 (SE), V 50, V 70 (SE), V 70 Class A, V 80 (SE), V 110 (SE) and V 16 Single Ended and the RE 280 MK2, RE 290, RE 320, MRE 130 and MRE 220 (SE) power amplifiers, but with even greater capacity.

Black Box

Like the Super Black Box, the Black Box is also an external power supply amplifier for the integrated amplifiers V 40 (SE), V 50, V 70 (SE), V 70 Class A, V 80 (SE), V 110 (SE) and V 16 Single Ended and the power amplifiers RE 280 MK2, RE 290, RE 320, MRE 130 and MRE 220 (SE).



  • Basic model: RE 320
  • Design: Silver or Black
  • Tube configuration: 4 x KT 88-S4A-Carbon, optional 4 x KT 150 TS
  • Connections: Inputs: 1 x RCA, 1 x XLR; Output: Speaker output suitable for banana plugs and cable lugs
  • Dimensions: 488 x 210 x 410 mm (W x H x D)
  • Weight: 27.6 kg
  • Eco mode: Power saving mode
  • Power selection: Adaptation to alternative power tubes
  • Bias control: Quiescent current display and setting
  • Protection system: Soft start; Protection circuit for amplifier and power tubes
  • Inputs: RCA + XLR selectable
  • Output power at 4 ohms: High: 2 x 130 W (RMS) / Low: 2 x 75 W (RMS)
  • Frequency response: 25 Hz - 85 kHz / -3 dB at full power
  • Input resistance: 220 kOhm RCA; 20 kOhm XLR
  • Signal-to-noise ratio: -110 dB (< 100 µV 150 Hz - 15 kHz)
  • Amplification: +28 dB RCA
  • Input sensitivity: 0.8 V RCA, 1.6 V XLR


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