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Seller's Description

For sale is a brand new sealed box Rogue Audio RP-9 tube preamplifier in silver finish. This unit is sold with its full 3 year warranty and is the last one we have in stock as the product has been discontinued and replace with the new v2 version that is $500 more. The RP-9 retails for $7,495.00The RP-9 is known for its natural, detailed sound with rich tonal textures and deep bass. It features four 6H30P tubes, a defeatable OLED display, home theater bypass, processor loop, and a tube-based headphone amplifier. With multiple balanced and unbalanced inputs and outputs, it offers versatile connectivity and excellent build quality, making it a favorite among audiophiles seeking high performance without excess complexity.SPECIFICATIONS:Tube complement: 4 x 6H30P tubes in balanced mu-follower designFrequency response: 1Hz – 170KHz ± 1 dBTotal harmonic distortion (THD): <0.1%Gain: 14 dB (20 dB on XLR inputs)Rated output: 1V RMSMaximum output: 30VOutput impedance: <10 OhmsInputs: Two pairs fully balanced XLR, three pairs RCA line levelOutputs: Two pairs balanced XLR variable, two pairs RCA variable, one pair fixed RCAFeatures: Home theater bypass, processor loop, mono button, defeatable OLED display, ten-function remote control, tube-based high power headphone amplifierPower supply: Massive with slow-start sequencing and auto mute at power on/offDimensions: 18.5” W x 4.5” H x 17” DWeight: 30 pounds

Our Thoughts RADAR AI

This US$5,795 asking price is a strong deal for the Rogue Audio RP-9, sitting well below the typical used market and undercutting the current open-box new price of US$5,899.99 by roughly US$105. While the unit is listed as a preamplifier rather than a dedicated headphone amp, the RP-9 is widely celebrated for its tube-based high-power headphone section, which delivers the warmth and dynamics audiophiles crave without needing a separate driver. Getting this flagship US-made preamp—which employs four 6H30P tubes and offers fully balanced XLR connectivity—at a price near the US$4,300–US$4,500 range seen for older used Rogue tube preamps makes it an exceptional buying opportunity.

The RP-9’s appeal lies in its versatile line-stage performance paired with a headphone output that rivals dedicated amplifiers, making it a rare dual-purpose centerpiece for high-end systems. At US$5,795, you are effectively paying used-market value for a unit that retailers still list near US$5,900, representing clear immediate value. Unless the listing lacks the remote, OLED display, or original tubes, there is no material reason to hesitate; this is a clean entry into Rogue’s top-tier preamplifier line with a built-in headphone solution that justifies the investment on sound quality alone.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Rogue Audio

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.

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