Input voltage can be modified to 110V/115V/117V or other specified values. For machines with modified voltage, shipment will take place within 5-7 days after the order is placed.
Note: When testing the machine, it is essential to connect a speaker. Running the machine without a load can easily damage the transformer or vacuum tubes (tubes may appear red-hot). Damage caused in this manner is not covered by our warranty.
【Sound Description】
The 6V6GT vacuum tube is renowned in the tube amplifier world for its "soothing, flowing" sound quality. It delivers exceptional audio performance at a reasonable price, though it has a relatively lower output power. To achieve optimal sound quality, it should be paired with high-sensitivity, high-fidelity speakers. This amplifier provides an output power of 4W × 2. Thanks to the strong overload capability of vacuum tubes, the actual distortion-free output power is comparable to that of a 20W+20W solid-state amplifier. It produces powerful bass, melodious highs, and rich reverberation. We recommend using high-sensitivity compact bookshelf speakers or, even better, full-range driver speakers. Speakers are available for purchase in our store, and bundled packages are offered at a more favorable price. As all stages of vacuum tubes operate in Class A amplification, the amplifier exhibits low distortion, delivering a sweet, smooth, and highly enjoyable sound.
【Product Features】
Compatible audio sources include CD players and computer audio outputs (requires a line-out port on the sound card).
1. Fully AC filament lighting ensures an extremely quiet operation. Even with speakers having a sensitivity of 90dB, no audible AC hum can be detected, creating a sensation as if the amplifier is turned off.
2. Utilizes a 12AX7 (directly replaceable with ECC83, 5751, or 7025) driving 6P6P (directly replaceable with 6V6) in a Class A amplification circuit, delivering 4W+4W output power. Suitable for speakers with an impedance of 4-8 ohms and a sensitivity of 89dB or higher.
3. Equipped with a Japanese ALPS 16-type volume potentiometer for precise channel balance and clear positioning.
4. Employs high-precision metal film resistors (1% tolerance) and imported electrolytic capacitors. Coupling capacitors are custom-made TEMKP copper-pin film capacitors, contributing to a rich, smooth sound with refined highs. Power supply filtering utilizes PHILIPS blue-shell capacitors and Nippon Chemi-Con capacitors.
5. Multi-stage C(capacitor) R(resistor) C filtering ensures a high signal-to-noise ratio.
6. Point-to-point hand wiring and tube rectification deliver a more detailed sound. Single-point grounding minimizes background noise.
7. RCA inputs and speaker terminals are gold-plated copper. Tube sockets are silver-plated copper; upgrade to gold-plated copper sockets for an additional 15 RMB.
8. Volume knob is a C-2 aluminum-clad plastic knob with scale markings and a plum blossom handle. Power switch is a stainless steel "Angel Eye" illuminated switch.
9. Power transformer rated at a full 130W (8650H50 annealed iron core, model 865004), operates cool and vibration-free, mounted horizontally. Output transformer (model 663501) is wound using a 3-section, 2-interleave method with recycled Japanese Z11 silicon steel sheets (0.35mm thickness). Z11 cores offer higher magnetic permeability, resulting in deeper bass response and superior performance compared to domestic Z11, H14, or H18 silicon steel sheets.
【Specifications】
1. Full Product Name: 12AX7 + 6P6P Vacuum Tube Amplifier
2. Color: Mango wood front panel with metal chassis; wood thickness: 2cm
3. Weight: Approximately 6kg
4. Dimensions: Width: 300mm, Height: 160mm, Depth: 230mm (including tubes)
【Parameter Table】
· Tubes: One Shuguang 12AX7 (directly replaceable with 6N4, ECC83, 5751), one pair of Shuguang 6P6P (replaceable with 6V6GT), one Shuguang 5Z4P rectifier tube
● Output Power: 4W + 4W / 8 ohms
· Frequency Response: 20 - 28kHz (±2dB)
● Input Sensitivity: 800mV
· Residual Noise: <2mVac
● Operating Voltage: AC 250V-0-250V / 180mA + 3.15V-0-3.15V / 3A + 5V / 3A
· Power Consumption: 130W
● Input Impedance: 5k ohms
● Output Impedance: 4, 8 ohms (Z11-EI6635 core)
