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• Octave RE 320 and Super Black Box PS – This powerful Class A/AB tube power amplifier system delivers exceptional dynamic range, stability, and tonal purity, with the Super Black Box providing massive energy reserves for demanding loudspeakers.
• High-Current Tube Output Stage – The RE 320 uses optimized KT150/KT120 tubes with intelligent bias control, producing remarkable drive, low distortion, and enhanced linearity for systems requiring both finesse and authoritative power.
• Super Black Box Power Expansion – Adding the Super Black Box dramatically improves current delivery, bass solidity, and transient response by multiplying capacitor storage capacity, resulting in cleaner microdynamics and deeper control.
• Precision German Engineering – Octave’s advanced power management, soft-start circuitry, and protective systems ensure long tube life, stable operation, and a highly refined presentation across complex musical passages.
• Dimensions – RE 320 approx. 451 mm (W) × 210 mm (H) × 460 mm (D). Super Black Box approx. 220 mm (W) × 180 mm (H) × 395 mm (D). Both units built for reference-grade rack placement.
• Weight – RE 320 approx. 28 kg; Super Black Box approx. 20 kg. Octave RE 320 and Super Black Box PS Heavy chassis design enhances vibration control, power stability, and overall sonic refinement.
Generating expert take…
Octave Audio is a German high-end electronics maker with roots going back to 1968, when Karl Heinz Hofmann founded a transformer-winding business in southern Germany; the company’s history page also notes that Andreas Hofmann developed early amplifiers in 1975 and later carried the business forward under the Octave name. Today it is based in Karlsbad, Germany and remains closely tied to that family-engineering heritage.
The brand is known almost exclusively for tube electronics, especially integrated amplifiers, preamplifiers, and power amplifiers; its lineup is centered on valve amplification rather than a broad mix of source components or accessories. Reviews of products such as the V 110 and V 16 also show that Octave builds headphone-capable integrated amps and other audiophile-focused tube designs, but it is not known as a speaker, turntable, DAC, cable, or headphone brand.
In the market, Octave sits firmly in the high-end, niche boutique tier. Its products are hand-positioned for serious audiophiles who want refined tube amplification with modern control and integration, and the company emphasizes in-house manufacturing and German sourcing. This is not a mass-market label or a vintage-collector brand; it is a specialist manufacturer with a long reputation for technically sophisticated, premium-priced tube gear.
See all Octave Audio listings on RADAR.
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