RP8 discontinued

The RP-8 represents the highest level, the state of the art in RudiStor's research in E-OTL headphone amplifiers. Despite its classic “RP” look it is part of a new generation of products — a no-compromise device from any point of view.

The sound joins the warm signature of tubes with the punch and dynamics given by a solid state power output based on bipolar transistors. The oversized and overfiltered double power supplies (one per channel) deliver clean and abundant current, easily managing any power requirement even under the most stressing situations.

Frequency response is almost flat from near 0 Hz up to 100 kHz, and although the RP-8 does not use any global negative feed-back, it has a totally black background with no hum or hiss at all. Thanks to the great damping factor and high output current it can handle any kind of headphone, no matter the impedance or sensitivity.

As a standard feature the RP-8 offers a pre-out set of RCA (output controlled by the volume knob), making it an extraordinary preamplifier. The illuminated logo gives the RP-8 a fascinating distinguishing look.

The enclosure and mechanical parts are 90% aluminium, reducing the use of magnetic metals as much as possible. The amplifier reaches its ideal operating temperature in 1–2 minutes and the enclosure never becomes hot — totally safe for kids and pets. CNC machined aluminium faceplate and handcrafted chromed brass knob. Made with lead-free components and tin/silver solder.

Specifications — Maximum Output: 800mW · Pre-amplifier output: 1 RCA out · Bandwidth: 2–100,000 Hz within less than 1dB · Gain: 8–12dB (H and L output) · THD: 0.2% (output 3Vpp), 0.3% (full power) · Technology: combo Vacuum Tubes / Bipolar Transistors · Input Impedance: 22–47kΩ · Vacuum Tubes: 4 × selected ECC82/12AU7 · Headphone Output Impedance: 16–600Ω · Zero Negative Feed-Back · Inputs: 1 line (RCA) · Amplification Class: Always A-Class Hi Current Output · Outputs: 1 pass-through · Dimensions: 23×8×28cm · Weight: 5kg

Price: $1,900 (international, free worldwide shipment) / €1,490 (EU, VAT included). Delivery 15 days by tracked courier (DHL or UPS).