| Quantity | 3+ units | 10+ units | 30+ units | 50+ units | More |
|---|---|---|---|---|---|
| Price /Unit | $1,053.54 | $1,032.04 | $999.79 | $956.79 | Contact US |
HiFi Audio Power Amplifier Non-negative Feedback Amplification Circuit Replacement for Dartzeel NHB-108
Description:
- The reference for the main amplification circuit of the whole machine is from the Swiss high priced machine for Dartzeel NHB-108. The NHB-108 amplifier adopts a feedback amplifier circuit without a large loop, completely eliminating the influence of the back electromotive force of the speaker on the amplifier. The sound is natural, comfortable, and has strong control. The actual driving power is even better than the large Class A machines I have heard of before, such as KSA50.
- The NHB-108 minimalist broadband circuit features a unique and revolutionary design with strong current output capability. There is no overall negative feedback, no negative feedback or compensation network in the input and output stages, and an open-loop design in the output stage. There are only 6 transistors per polarity in the entire signal path. The latest SCNP enhanced version for darTZeel provides better signal timing and huge current peaks.
- The production process uses a silver tin wire white light soldering station for static free soldering. Distortion, signal-to-noise ratio, separation, and sound quality testing are all carefully monitored by dedicated personnel to ensure foolproof performance.
Materials:
- High imitation all aluminum process chassis, with a straight cut version weighing about 26kg and exquisite appearance.
- Oxygen free copper 300W ring transformers, independent power supply for left and right channels, ensuring sufficient separation and energy.
- Classic versions 16 original 10000UF capacitor filter array for ELNA-AUDIO, direct engraving version 4 capacitor for SPRAGUE or BC 75V39000UF capacitors.
- For Omron speaker protection circuit and high-power soft start circuit. Ensure that both the machine and speakers are operating in a safe state.
Specification:
- Input impedance: 100Kohms
- Line gain: +26dB
- THD+N: -100dB at no load; -60dB at 8ohms
- Crosstalk: -125dB
- SNR: 115dB
- Frequency response: 10Hz - 20kHz
- Output power: 140W at 8ohms; 200W at 4ohms
- Product size: 440 x 380 x 160mm
- Packaging weight: 28kg
Package Included:
- 1 x Power Amplifier
