GOB-07 Musical Paradise MP-701 MK4 Pre Amplifier Vacuum Tube Pre Amplifier Voltage Selection 110V-120V / 220V-240V

New fourth generation upgraded version

The whole machine has undergone a comprehensive upgrade of hard core technology, specifically designed for high HiFi sound quality

Pure and Warm Gallbladder Flavor | Details Full | Dynamic and Powerful

Deep three-dimensional sound field | Solid and full low-frequency

Say goodbye to digital dry cold sound and restore the on-site listening experience

Senior audiophile exclusive pre tuning stage

Seven Core Upgrades: Dual Transformation of Sound Quality and Experience

2-inch IPS high-definition color screen visualization operation

100 level relay resistor array volume system with zero deviation and low distortion

Fully functional infrared remote control for convenient operation

Z11 Iron Core Fever Power Supply Bull Pure Power Supply

Advanced filtering capacitor upgrade for purer signal

Optimizing rectifier circuits to extend the lifespan of bile ducts

Thickened all aluminum chassis for shock absorption and more stable sound

Eight major fever level core technologies: hardcore reactor materials

Dual voltage bile duct compatible with free bile duct switching tuning

Four levels of gain can be adjusted to fit all amplifiers

Zero negative feedback circuit with authentic natural sound

High power redundant power supply, dynamic and not weak

Easy DIY tuning with solder free capacitor replacement design

Imported fever components with extremely low loss across the entire range

Precision metal body knob for noise reduction and earthquake resistance

Fully functional remote control with one click convenient operation

Hardware specifications

Input: 2 sets of RCA single ended+1 set of XLR balanced

Output: 2 sets of RCA single ended+1 set of XLR balanced

Maximum output voltage: 20Vrms

Frequency response range: DC-50kHz

Input impedance: 30K Ω | Output impedance: 2K Ω

Body size: 41x31x10cm | Whole machine 10KG

110-120V/220-240V dual voltage switching globally universal

Massive bile duct compatibility | Change bile duct tone at will

[6.3V rectifier tube] 6Z5P, 6X5 (S2 dial 6X5)

[5V rectifier] 5R4, 5U4G, 274B, GZ34, etc. (S2 dial 5AR4)

[6.3V signal tube] 6N11, 6H1N, E88CC, 6922, etc

[12.6V signal tube] 12AU7, 12BH7, E80CC, etc

S1 switches signal tube voltage | S2 switches rectifier tube voltage

Full playability

Solder free capacitor DIY tuning | Custom tone style

[Output coupling capacitor | Original RIFA2.2uF/1000V]

Interchangeable range: 1uF-4.7uF withstand voltage â‰Â¥ 350V

Large capacity warm and soft | Small capacity transparent and clear

[Filter bypass capacitor | Original ICEL2.2uF/400V]

Interchangeable range: 0.1uF-10uF withstand voltage>350V

Easy tuning without the need for welding beginners

Fever level listening experience | Multi scene all-around adaptation

Upgrading the HiFi system to improve the upper limit of sound quality

Home HIF uses a grand sound field with strong atmosphere

Active speaker listening correction for dry digital sound

DIY enthusiast dual gameplay of gallbladder and capacitor replacement

Pure warm vocal bile flavor | delicate layering | dynamic abundance

Low distortion and high resolution | The whole machine is solid and durable

Adapt to all stone and gallbladder machine back-end amplifiers

Attention when placing an order: Parameters will be upgraded with technical iterations without further notice