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Power amplifiers mono — Octave Audio Jubilee 300 B
Description, images, technical data and specifications
Octave Audio Jubilee 300 B
Image source — © Octave Audio
The Jubilee 300 B is a monoblock power amplifier from Octave Audio, built around the celebrated 300B output tube referenced in the model name. The Jubilee 300 B brings Octave's considered engineering to dedicated single-channel single-ended triode power amplification.
Key specs that matter
Input sensitivity is 500mV. Gain is 30dBu. Frequency response spans 20Hz to 50,000Hz within plus-or-minus 3dB. Signal-to-noise ratio exceeds 100dB - a strong figure for a single-ended triode design. At 240 x 660 x 400mm and 55kg, the Jubilee 300 B's considerable weight reflects serious internal transformer engineering consistent with quality single-ended triode design at this scale.
Sound and use context
Expect the exceptionally rich, harmonically textured character single-ended triode 300B-tube amplification is broadly celebrated for among tube enthusiasts, combined with the strong over-100dB signal-to-noise figure representing Octave's considered German engineering standards.
Pairing
As a monoblock, the Jubilee 300 B requires two units per stereo pair, pairing best with notably efficient loudspeakers given the inherent power constraints of single-ended triode operation.
Alternatives
Octave's own Jubilee Mono Ultimate offers a considerably more powerful monoblock alternative within the same broader Jubilee catalogue.
Key specs that matter
Input sensitivity is 500mV. Gain is 30dBu. Frequency response spans 20Hz to 50,000Hz within plus-or-minus 3dB. Signal-to-noise ratio exceeds 100dB - a strong figure for a single-ended triode design. At 240 x 660 x 400mm and 55kg, the Jubilee 300 B's considerable weight reflects serious internal transformer engineering consistent with quality single-ended triode design at this scale.
Sound and use context
Expect the exceptionally rich, harmonically textured character single-ended triode 300B-tube amplification is broadly celebrated for among tube enthusiasts, combined with the strong over-100dB signal-to-noise figure representing Octave's considered German engineering standards.
Pairing
As a monoblock, the Jubilee 300 B requires two units per stereo pair, pairing best with notably efficient loudspeakers given the inherent power constraints of single-ended triode operation.
Alternatives
Octave's own Jubilee Mono Ultimate offers a considerably more powerful monoblock alternative within the same broader Jubilee catalogue.
Specifications
Model name
Jubilee 300 B
Input sensitivity (mV)
500
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
N/A
Output power (4Ω) (W)
N/A
Gain (dBu)
30
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
50 000
Signal to Noise Ratio (dB)
>100
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
N/A
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
240 x 660 x 400
Weight (kg)
55
Official link
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