Octave · Power Amplifiers
RE 320
The RE 320 is a stereo tube power amplifier running KT150 push-pull pairs per channel for 2x130W RMS at 4 ohms, carrying over the Jubilee SE's driver stage into a two-channel chassis.
fig. 01 · power amplifiers
RE 320
current
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From Octave
Two KT150 tubes per channel, running push-pull, give the RE 320 a maximum output of roughly 130W per channel, with pulse power reaching over 200W on transients. Frequency response spans 5Hz to 85kHz, and the amplifier also ships standard with four KT88-S4A-Carbon tubes as an alternative configuration.
Switchable RCA and XLR inputs feed the amplifier, alongside fine BIAS adjustment, a power switch to accommodate different tube types, and Eco Mode for reduced standby heat and consumption. Interference signal level runs below -110dB, low enough that no hum or noise comes through even with high-efficiency loudspeakers.
A connection for Octave's external Black Box or Super Black Box power supply lets you add capacitance for demanding speaker loads. The RE 320 pairs the driver stage and output transformer design used in the Jubilee-generation amplifiers with a smaller two-channel format built for standard stereo systems.
Specifications
| 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 |