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US$799 is a solid buy, sitting well below the original US$1,295–US$1,695 new pricing and in line with the kind of used value you’d expect for a well-kept Sphinx V2. A clean, working example at this number reads as fair-to-strong rather than ambitious, especially if the remote, tube set, and original box are included.
What makes it attractive is the sound-to-size ratio: this is a 100Wpc hybrid integrated with a tube front end, Hypex Class D output stage, and a built-in phono section plus headphone amp, so it covers a lot of systems without fuss. Rogue gear is generally well regarded for punchy, controlled bass and a lively but not fussy presentation, and the V2 improved the phono and headphone sections over the original. If it’s been serviced, has quiet tubes, and includes the accessories, this is the kind of used amp that’s easy to recommend.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Rogue Audio was founded in 1996 by Mark O'Brien and two colleagues from Bell Laboratories, establishing itself as a Pennsylvania-based manufacturer of high-quality audio electronics. The company, headquartered in Brodheadsville in the Pocono region, has built its reputation on American craftsmanship, with every product hand-built at its own facility. O'Brien, who holds a degree in physics from Cal Poly and previously worked designing laser systems, brought both technical expertise and a commitment to sonic excellence to the venture. The company's founding philosophy centered on creating audio components that the designers themselves would want to own.
Rogue Audio specializes in tube, solid-state, and hybrid audio components across a focused product range that includes integrated amplifiers, power amplifiers, preamplifiers, phono stages, and headphone amplifiers. The brand is particularly known for its vacuum-tube-based designs, which form the core of its engineering identity. The current lineup comprises approximately 16 to 17 models, each engineered with meticulous attention to circuit topology and layout. Notable products include the Cronus integrated amplifier series, which has become a reference point in the mid-to-high-end market.
Rogue Audio occupies a distinctive position as a boutique, high-end manufacturer that prioritizes value and accessibility without compromising sonic performance or build quality. The brand appeals to discerning audiophiles who appreciate American-made tube electronics and sensible pricing relative to performance. Its commitment to local sourcing and manufacturing, combined with a design philosophy rooted in personal conviction rather than market trends, has earned respect among audio enthusiasts and reviewers. Rogue represents the intersection of engineering rigor, tube-amplifier tradition, and practical American manufacturing.
See all Rogue Audio listings on RADAR.
