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The Rogue Audio RP-9 preamplifier elevates the award-winning RP-X hardware and software platform to a new level, focusing on near perfect signal integrity, ultra-wide bandwidth, low distortion, and a vanishingly low noise floor. It uses four Russian military 6H30P tubes in a balanced mu-follower configuration, delivering exceptional detail, smoothness, and refinement that redefines reference-caliber preamplifier performance. The RP-9 includes a home theater bypass, processor loop, mono button, and an elegant, defeatable OLED display. It comes with a machined aluminum 10-button remote control for convenience. Connectivity options include two pairs of fully balanced XLR inputs, three pairs of RCA line-level inputs, two pairs of balanced XLR outputs, and two sets of RCA variable outputs. The preamplifier also features a highly capable 2 watt tube-based headphone amplifier, a massive power supply, slow start turn-on sequencing, auto mute at turn on/off, and a detachable IEC power cord. It is fully tested, burned in, auditioned, and proudly handcrafted in the USA with a 3-year limited warranty (6 months on tubes).
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
Components that show up alongside the RP9 in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Symmetrical's thd is 0.030% against the RP9's 0.100%, its output impedance 70Ω against 10Ω, and its weight 17 kg (37 lbs) against 13.61 kg (30 lbs). Both share output voltage (1.0V RMS).
Both turn up in the same documented systems.
The Reference 6's power @ 8ω is 2W against the RP9's 1W, its thd 0.500% against 0.100%, its output voltage 2.0V RMS against 1.0V RMS, and its weight 17.01 kg (38 lbs) against 13.61 kg (30 lbs).
Both turn up in the same documented systems.
The Reference 5SE's power @ 8ω is 2W against the RP9's 1W, its thd 0.010% against 0.100%, its output voltage 2.0V RMS against 1.0V RMS, and its output impedance 600Ω against 10Ω.
The LL2 Deluxe's thd is 0.030% against the RP9's 0.100%, its output impedance 250Ω against 10Ω, and its weight 9.07 kg (20 lbs) against 13.61 kg (30 lbs). Both share output voltage (1.0V RMS).
Conrad Johnson GAT
Audio Research Corporation Reference Phono 2 SE
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