Legacy product — discontinued and no longer available for purchase. This page is kept as part of the RudiStor product history (c. 2009). See the current lineup for available models.

RP7C discontinued

Hybrid Enhanced OTL — the state of the art of the RP7 series

Year: c. 2009
Status: removed from the catalog — replaced by newer generations.

Developed for the lovers of the best and classic vacuum tube sound, the RP7-c is the state of the art development of the E-OTL technology and the latest evolution of the RP7 series of headphone amplifiers.

The RP7-c uses four triode sections for each channel. Thanks to attentive design and accurate post-production individual tuning, harmonic distortion is reduced to a mere 0.1% at normal listening levels, and intermodulation distortion is negligible.

The power supply is split in two sections, one for each channel, to optimize L/R separation and soundstage. Components are hand-matched from the best batches and individually tested before populating the boards.

The high voltage output swing and slew rate, the high current output and high damping factor, joined with the “tube taste” sound, are the key points of this top level headphone amplifier. It drives both high and low impedance headphones (12 to 600 Ohm).

On the back panel there are a through-pass output and an auxiliary amplified output controlled by the volume potentiometer — the RP7c can be used as an astonishing high-end preamplifier. A black faceplate option was available. Made with lead-free components and tin/silver solder, in respect of the EU environmental directive.

Specifications — Maximum Output: 900mW · Inputs: 1 RCA · Bandwidth: 2–100,000 Hz within less than 1dB · Outputs: 2 headphone + 1 pre-out · THD: 0.15% (output 3Vpp), 0.4% (full power) · Gain: 11dB · Input Impedance: 22kΩ · Technology: Combo Vacuum Tubes 12AU7 / BJT Transistor · Output Impedance: 12–600Ω · Dual splitted capacitance multiplier PSU · Amplification Class: Always A-Class · Weight: 6kg · Dimensions: 23×28×8cm

Discontinued in December 2009.