Musical Paradise MP-701-MK3 Tube Preamplifier Hi-Fi Stereo Preamp with Remote Control XLR & RCA in/Out 4-Level Gain Switch,Supports 5V/6.3V Rectifier & 6.3V/12.6V Signal Tubes

Upgraded the filtering inductor based on MK2 and added a filament voltage regulator circuit. Darker background, higher sound quality Technical Highlights On-board switches support 6.3V/5V rectifier tubes and 6.3V/12.6V signal tubes. A time-tested and community-verified circuit for the most natural sound. Oversized 150W toroidal transformer in a shielded compartment under the mainboard. Solder-free, quick-connect design allows easy replacement of coupling and bypass capacitors for sound customization. Uses genuine HiFi-grade components: Vishay resistors, Rubycon/Nichicon capacitors, Obbligato Gold coupling caps, Bennic XPP bypass caps, ALPS controls, and gold-plated terminals. Full aluminum alloy chassis with solid aluminum shock-absorbing feet and knobs. Includes remote volume control. Technical Specifications Output Voltage: 20V (Max), depends on gain setting and signal tubes. Output Impedance: >=10 Kohm Frequency Response: DC to 50kHz Input: RCA × 3, XLR × 1 Output: RCA × 2, XLR × 1 Active Subwoofer Support: Yes Dimensions: W 31cm × D 39cm × H 14.5cm Gross Weight: 12 kg Vacuum Tubes 6.3V Rectifiers: 6Z5P, 6X5. 5V Rectifiers: 5R4, 5U4G, 5AR4, GZ33, GZ34, 274B, 5Y3, 5Z3P. 6.3V Signal Tubes: 6N11, 6N1P, E88CC, E188CC, CCA, 6922, 6H23, 6H6, 6H30 (6SN7 requires adapter). 12.6V Signal Tubes: 12AU7, 12BH7, E80CC (12SN7 requires adapter). Usage: Set S2 switch to 6X5 for 6.3V rectifiers. Set S2 switch to 5AR4 for 5V rectifiers. Set S1 switch to 6.3V for 6.3V signal tubes. Set S1 switch to 12.6V for 12.6V signal tubes. Replaceable Capacitors Stock Obbligato Gold coupling cap: 630V 2.2UF. (Replacement: 1.5UF - 4.7UF, >=350V, non-polarized). Stock Bennic bypass cap: 350V 6.8UF. (Replacement: 0.1UF - 10UF, >=350V, non-polarized).

• PURE, NATURAL SOUND: A time-tested and community-verified circuit provides the most natural and detailed audio experience. The MK3 model features an upgraded choke and filament voltage regulation for a darker background and superior sound quality. Onboard filament voltage switches allow total sound customization. Supports 6.3V (6Z5P, 6X5) AND 5V (5AR4, 5U4G, 274B) rectifier tubes, plus 6.3V (6N1P, 6922) AND 12.6V (12AU7, 12BH7) signal tubes.
• PRO-LEVEL GAIN & CONNECTIVITY: Features a 4-level DIP switch for output gain, ensuring perfect matching with any power amplifier or active speaker. Equipped with 3x RCA & 1x XLR Inputs, 2x RCA & 1x XLR Outputs , and active subwoofer support.
• AUDIOPHILE-GRADE COMPONENTS: Built with genuine HiFi parts , including Vishay military-grade resistors, Rubycon & Nichicon Low-ESR capacitors, Obbligato Gold coupling caps, Bennic XPP bypass caps, and an ALPS volume control. A massive 150W toroidal transformer is shielded beneath the main board for clean, abundant power.
• WIDE COMPATIBILITY: This preamp is not a simple volume control found in DACs; it's a true amplification stage. It significantly enhances HiFi system sound quality, revealing unheard details, higher dynamic range, stronger bass, and a deeper soundstage. It is optimized for compatibility with integrated amps, power amps, and active speakers.
• SOLDER-FREE MODDING & PREMIUM BUILD: A unique quick-install capacitor design allows you to easily swap coupling and bypass caps without soldering. Features remote volume control , a full aluminum alloy chassis , and solid aluminum shock-absorbing cone feet and knobs.