Description:
NE5534 Ultra-Low Distortion 4W+4W Audio Amplifier Board LG86D with 16 Bills Chorus
Ultra-low distortion 4W+4W NE5534 Headphone Power amplifier board with 16 mouth chorus:
16 NE5534 single amplifiers are used to output, and the work of ants gnawing bones keeps the excellent performance of 16 single amplifiers in ultra-low distortion of small signal. The high-level design ensures that the whole machine has distinctive extraordinary characteristics, +12V~+18V DC. Power supply. Power 4W + 4W ultra-low distortion output, push headphones or 8-16 Euro high sensitivity speakers.
Headphone power amplifier board materials:
high-frequency double-sided fiberglass board 75X67mm, 16 American NE5534 used. Gold-plated 8-foot mount assembly, Japanese KOA 0.25W 1% copper foot metal film resistance,
The size of PCB board of <15V DC power supply is 83 *37mm, and high quality components are assembled. 12V AC double voltage full wave rectifier positive and negative 15V voltage output: single group AC power supply, electrolytic filter + PI choke + electrolytic filter output. The choke coil is located in the middle of four filter capacitors, which constitutes a pi-shaped filter and effectively filters the AC sound.
Note:This power amplifier board maybe used the former power pusher board. Different batches of boards, different capacitors, sending without slection.
Friendship reminder:
This power amplifier board is a two-channel power amplifier board, which needs to be used with matching front-stage power pusher board. NE5534 on the circuit board is a second-hand genuine dismantling machine, because of the different batches of production, brand and origin will be different, not selected.
Its ultra-low distortion principle is like the chorus chorus, people singing synchronously in a chorus, everyone's throat as long as easy pronunciation, keep singing in the best volume area, people's voice is overwhelming momentum, as if it is the voice of heaven! It is similar to the parallel operation of several dozen pairs of high-power transistors in power amplifiers, which can increase the output current, reduce the internal resistance, improve the damping and reduce the distortion. It is also like tens of loudspeakers of the same specification on the giant landing flagship loudspeaker in parallel, so that each loudspeaker can work in the area with the best linearity and the smallest distortion, so as to achieve a certain sound pressure level and solve the distortion of a single loudspeaker at large volume. The same is true for the parallel output of 16 NE5534 op amps.
Listening experience:
It seems that there is a distinct difference between listening to headphones and listening to speakers. Small distortion, sound balance, small tone dyeing, high fidelity, good grasp between resolution, sound balance and music taste, wide and accurate sound field positioning, clear sound level, deep bass, IF performance is natural and true, high frequency stretching and bright, speed is good, not tight and slow, let people experience a kind of.“ Like a child's chorus, the beautiful timbre is like the sound of nature. It is clear, pure, empty and gentle. The beautiful and holy timbre gives us a feeling of angels flying into the world. What people feel is not a simple mix of sounds, but a complete torrent of melody. Almost every nerve of the listener is a torrent. It's touching and refreshing.
Compared with 300B of bile duct, the sound quality can be described by the difference between lobster and chicken soup.
Packing List:
1 x NE5534 Ultra-Low Distortion Headphone Amplifier Board
