Boya A75 Pure Class A Class A Dual Channel Rear Stage Hifi Fever Fully Balanced Rear Stage Amplifier 120W/8 Ω x2 240W/4 Ω x2

Product Features:
A-75 has a good sense of hierarchy and can demonstrate clear and distinct reproduction; And many details of the vocal parts within the music can also be presented in a dense and detailed manner. The orchestral sound is loose, with rich low frequencies, and the string ensemble is glossy, sweet, and exquisite; On the other hand, the vocals are full and warm, with flesh and blood, very beautiful and authentic. The beauty of the singer's voice and singing skills can also be fully presented, creating a touching musical charm. The speed of releasing and releasing bass, as well as the depth and shock of sinking, are exhilarating but not dull. The volume can be turned up, and the overall balance of the music is still maintained very well. It doesn't sound noisy at all, and you can enjoy the impact of music resonance. The circuit design is a fully symmetrical current amplification, with four independent current amplification stages and a fully balanced scheme. This machine is a flagship pure rear stage independently developed for reference to famous machines, which ensures high-quality performance.

Product features:
1. Circuit design: Excellent circuit design for two bias working modes, Class A/Class B high-power 120W/8Qx4, bridging 240W/8Qx2.
2. Power tube: The output adopts 32 high-power, high dynamic, high delicate, high-performance, multi-layer inductance, precision paired with Anson Tube King. 3. Transformers: Two huge transformers with a total of 2000W imported Class A iron cores, made of 1.5mm large outer diameter oxygen free copper wire winding, provide abundant power energy.
4. Filter power supply: Matrix style 24 10000UF fever audio filter capacitors, with different sound and energy.
5. Input/output: It has rich output wiring methods and is compatible with RCA and XLR balanced inputs.
6. Chassis appearance: Champagne gold color paired with classic black body, huge and thick materials, upper and lower convection, and heat sink grid military heat dissipation design ensure solid and stable machine performance.
7. Protection mechanism: Adopting a shielded protective layer high current relay to protect the chip 1237HA, ensuring the safety factor of the amplifier and speaker.
8. Separation degree: The complete independence of the left and right channels has always been highly sought after and recognized by audiophiles, which can better express the sense of depth and hierarchy, making the sound truly authentic.
9. Isolation design: Adopting a soft start method to prevent momentary high-voltage impact on the transformer; The use of isolation circuits prevents noise and direct current from entering the transformer, thereby improving the purity of the entire machine.

Product Specifications

1: Power supply range: 210V-240V/50-60Hz (110V Customized)
2: Output power: 120W * 2 @ 8ohms/240W * 2 @ 4ohms (10Hz-20KHz)
3: Input audio: RCA&XLR
4: Frequency response: 10-20kHz (+/-0.05dB 10 WRMS 82)
5: Total harmonic distortion:<0.015% (10 WRMS 8 Ω)
6: Input impedance: 47K ohms
7: Damping coefficient: 800/@ 8ohms 1KHz
8: Signal to noise ratio: ≥ 102dB
9: Weight approximately: 32KG
10: Machine size: W * D * H 430 * 500 * 220 (mm)