The high-quality front-end amplification part used by the merging machine:
Adopting the classic MBL6010 front-end core amplification circuit
OPA604AP, a bile flavored operational amplifier using electronic tube sound
ALPS27 potentiometer rear, reducing signal channel and noise
Potentiometer extension rod connection, short signal transmission path, reduces interference
The front stage is powered by a Class A parallel stabilized power supply with excellent transient response and extremely low noise
OMRON relay signal switching
CMC high-quality RCA terminal
Rear level circuit: The main amplifier circuit of this machine is derived from the Swiss high priced machine "Round Moon Bending Knife" Dachao Dartzeel NHB-108, which is worth 130000 yuan. The main amplifier board adopts a 1:1 direct engraving original machine, and the component models and parameters are completely consistent with the original machine, with a sound that is completely consistent with the original machine.
The DaXiao 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 highly acclaimed NHB-108 patented minimalist broadband circuit features a unique revolutionary design with strong current output capability and incredible JI ZHI sound quality. There is no global negative feedback, no negative feedback or compensation network in the input and output stages, and a unique open-loop design in the output stage. There are only 6 transistors per polarity in the entire signal path.
Line characteristics
"Full Moon Curved Knife" Da Xiao No Big Loop Feedback Power Amplifier Circuit
Warm, soft, comfortable, and pleasant to the ear, this amplifier is suitable for sitting down and listening to music slowly. The sound is quite relaxed, open, and natural, not noisy at all, which is quite pleasant. In terms of bass, the volume and diving are both good
High damping coefficient, can control any speaker freely because it is a non loop feedback amplifier with first-class control force, worth a try
MBL preamplifier circuit, independent parallel regulated power supply
3-way RCA signal input selection
Materials used for production
D5PRO uses 6 pairs of precision testing pairs for each channel, 3 pairs, and ON MJL3281/1302 for high output current capability
All small signal lines and high current lines inside the aircraft are made of Taiwan Teflon oxygen free copper wire
CMC pure copper RCA terminals
Using a 500W high-end Nippon Steel transformer
12 10000uF fever grade large electrolysis ELNA FOR AUDIO
The rear stage adopts a dual mono design, with separate power supply for the left and right channels, resulting in extremely high separation
Equipped with a startup soft start and a complete horn protection circuit
CNC machining of all aluminum high-precision chassis 430 * 330 * 130mm
The front stage adopts a rear mounted ALPS27 potentiometer
The front stage uses bile flavored fever single operational amplifier OPA604 for amplification
AP test parameters with 8 ohms and 800 watts load test data per channel
Output effective value: 30.68Vrms
Channel gain: 37.13dB 70.2x
Signal to noise ratio: 108.5dB
Dynamic range: 108.5dB
THD distortion: 0.0033%
THD+N distortion: 0.010%
Frequency response bandwidth: ± 0.046dB
Weight of amplifier: 16kg with packaging of 17kg
Static power consumption: D5 85W D5PRO 90W
Output power: 120w * 2/8 ohms; 240W * 2/4 Ou Easy to Push Big Food Speaker
