MK3 Tube Amplifier Preamplifier Subwoofer Bass Preamp DIP Gain Switch MP-701-MK3

MK3 Tube Amplifier Preamplifier Subwoofer Bass Preamp DIP Gain Switch MP-701-MK3 MP-701-MK3 Tube Amplifier Preamplifier Subwoofer Bass Preamp DIP Gain Switch Specification: Output voltage: 20V (maximum), depending on the DIP gain switch setting and the type of signal tube used Output impedance: ≧10K ohm Frequency response: DC to 50khz Input: RCA x 3, XLR x 1 Output: RCA x 2, XLR x 1 Active subwoofer support: yes Size: width 31cm x depth 39cm x height 14.5cm Input voltage: 110-120V / 220-240V optional Features: 1. With on-board filament voltage switch, it can support 6.3V and 5V rectifier, 6.3V and 12.6V signal tube. 2. On-board DIP output gain adjustment switch, the user can select 4 different levels of output gain to support the post-level equipment with different input sensitivity. 3. With zero negative feedback circuit, it provides the most natural sound. 4. The oversized 150W toroidal transformer can provide sufficient redundant current. It is placed in the electromagnetic shielding compartment under the motherboard. 5. Quick-install capacitor design, users can freely replace the output coupling capacitor and power supply filter bypass capacitor to further improve or customize the sound of different characteristics, without soldering, easy to replace. 6. The whole machine adopts original genuine HiFi-level components, such as Vishay military resistance, Rybycon and Nichicon low ESR power filter capacitors, Obbligato Gold coupling capacitors, Bennic XPP power bypass capacitors, ALPS volume control and power switch, true gold-plated terminals. 7. All-aluminum alloy chassis, solid aluminum alloy shock-absorbing cone foot and key knob. 8. With remote volume control function. Tube Specification: 6.3V filament rectifier: 6Z5P, 6X5 5V filament rectifier: 5R4, 5U4G, 5AR4, GZ33, GZ34, 274B, 5Y3, 5Z3P 6.3V signal tube: 6N11, 6N1P, E88CC, E188CC, CCA, 6922, 6H23, 6H6, 6H30, (6SN7 to 6922 conversion socket is required) 12.6V signal tube: 12AU7, 12BH7, E80CC, (12SN7 needs to use 6SN7 to 6922 conversion base). Note: -When using a 6.3V filament rectifier, set the on-board S2 switch to the 6X5 position. When using a 5V filament rectifier, set the on-board S2 switch to the 5AR4 position. -When using a 6.3V filament signal tube, set the on-board S1 switch to the 6.3V position. When using a 12.6V filament signal tube, set the on-board S1 switch to the 12.6V position. Replaceable Capacitor: 1. The standard configure Obbligato Gold coupling capacitor is 630V 2.2UF. The capacity can be 1.5UF-4.7UF. The voltage must be ≧350V, stepless. 2. The standard configure Bennic power filter bypass capacitor is 350V 6.8UF. The capacitance can be 0.1UF-10UF. The voltage must be ≧350V, stepless. Package List: 1 x Amplifier