RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
• 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.
For a Super Black Box in like-new condition, S$9,800 is on the high side versus the used market, which has shown most recent asks clustering around roughly S$2,700–S$10,800, with the middle of the pack landing much lower than this listing. That makes this price ambitious, not a bargain, unless the package is unusually complete or locally scarce.
What still makes it interesting is the unit’s reputation for tightening bass, improving control, and giving Octave amps a more authoritative, resolved presentation. If the cables and accessories are genuinely included and the condition is as clean as stated, that adds some value; still, at this price I’d want proof of model compatibility, full accessories, and a strong case for why this example deserves the premium.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
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.
StereoNET
Like new
AU
