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Cayin HA-3A Vacuum Tube Headphone HIFI Power Amplifier Graded Independent Power Supply Three Headphone Output TerminalsProduct parameters: Rated output power: STD unbalanced output: 400mW+400mW(L); 600mW+600mW(M): 700mW+700mW(H) 4.4BAL balanced output: 230mW+230mW(L); 350mW+350mW(M); 400mW+400mW(H) 4PIN BAL balanced output: 600mW+600mW(L): 750mW+750mW(M): 850mW+850mw(H) Frequency response: 18Hz~30kHz±3dB Total harmonic distortion: 0.2% (1kHz, 200mW; rated output power less than 5%) Sensitivity: 300mV~480mV Signal-to-noise ratio: 100dB (A-weighted) Headphone impedance matching: L: 8~64Ω; M: 65~250Ω; H: 251~600Ω Headphone output socket: 6.35mm unbalanced headphone socket; 4.4mm balanced headphone socket; 4PIN balanced headphone socket Input Impedance: 40kΩ Input terminal: XLR, RCA Vacuum tubes used: JJ 12AU7/ECC82×2, JJ 6V6S×2, RCA22DE4×1 Volume: 306mm×260mm×170mm Net weight: 12KG Main fuse: ~220V-240V:T1AL250V;~100V-120V:T2AL250V External high voltage fuse: T125MAE250V Power consumption of the whole machine: 80W Working conditions: Temperature: 0°C~40°C Humidity: 20%~80% Storage conditions: Temperature: -20°C~70°C Humidity: 20%~90%
Carefully selected Two JJ6V6S imported vacuum tubes for single-ended pure class A power amplification Two JJ12AU7 (ECC82) for voltage amplification
Hierarchical independent power supply with large signal-to-noise ratio optimization The RCA 22DE4, which is highly praised in the same type of tube type, is used as the rectifier tube Responsible for the independent power supply of the voltage amplifier stage and the low-noise voltage regulation circuit to ensure pure, low-noise and stable sound output.
Output power mono up to 700mW High, medium and low impedance selection
Three headphone output terminals 6.35mm single-ended 44.mm balance 4-Pin Balance
Each headphone jack is independently optimized for tuning, among which the 4.4mm balanced headphone output jack is optimized for in-ear earbuds.
XLR and RCA line input In addition to matching with desktop decoders or CD players, it can also be used with portable players through adapter cables.
The shell of HA-3A is carefully crafted with 14 spray paint and polishing process. The aviation aluminum alloy panel is used on the front, which has both beautiful and practical tough lines, adding a high-quality texture to the home space.
It is made by hand-built point-to-point wiring. The internal circuit of each HA-3A machine is carefully hand-wired by experienced technicians using high-standard wires and components. To ensure that the circuit has a higher pass rate, the transparency and fineness of the sound are better.
Adhere to the self-developed high-quality power transformer, which adopts high-purity copper enameled wire winding design, which produces lower magnetic interference than standard transformers. In addition, special research on shielding packaging technology and circuit protection measures further protects the power amplifier circuit from sound interference, and effectively Improve product life.
Anti-vibration and anti-interference Aviation aluminum panel, high-strength metal shell, Base reinforcement design, three machine feet form a triangular stable structure, Minimize external environmental impact.
Standard vacuum tube protection cover It not only protects the vacuum tube, but also prevents accidental contact with the vacuum tube that generates heat during work.
Power-on mute 60 seconds delay Protect the life of the machine, while ensuring sufficient preheating and a good sound
1: Power switch 2: Power indicator 3: Headphone output selection switch 4: 6.35mm single-ended headphone output 5: 4.4mm balanced headphone output 6: 4-Pin balanced headphone output 7: Headphone impedance selection 8: VU level meter 9: Audio input selection switch 10: Volume control knob Customers who bought this product also purchased... |
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