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LM3886TF+NE5532 Tuning amplifier Board of finished products (luxury) ≪/span>

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Product details:

NE5532 audio special-purpose operational amplifier IC, and the IC sound warm and balanced atmosphere, often used as a preamp; LM3886 is a United States National (NS) a renowned high performance audio power amplifier ICS, maximum output power up to 68W, accurate and vivid sound, low noise and distortion are pretty and perfect protection function, performance and stability. LM3886 launched rave, soon became the power HIFI audio amplifiers and high fidelity active monitor speakers amplifier circuit configurations. The two IC audio enthusiasts known, known to; despite so many years development of audio technology, but these two IC because of the excellent performance and outstanding sound quality, still widely used, enduring. United States famous Lam LM3886 amplifier audio manufacturer core members at expensive prices, it can be said the LM3886 is an audiophile will play and play one of the audio amplifier IC. ≪/span>

n The power amplifier Board is level before and after 2x68W two-channel integrated amplifier Board.

n Uses LM3886 and NE5532. ≪span style= “font-family: Verdana; letter-spacing:0.0pt;font-size:13.5pt;” >

n Front input capacitance and coupling capacitance between stages with top CBB capacitor 2.2UF, electrolytic capacitors signal primary circuit using Taiwan brand names, main filter capacitor using gold NOVER audio-specific capacitance 2x10000UF, 25A bridge rectifier flat and above, ensure powerful stream of support. ≪/span>

n Resistance selection of rings of metal resistance, main circuit using precision metal film resistors ± 1% ring to ensure good signal to noise ratio of the whole machine. ≪/span>

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n Front-stage Tuning Tuning some design feedback, can reduce the crossover distortion, listen better, volume adjustments are as follows: treble, bass, and total volume. ≪/span>

n Selection of gold-plated hole IC, not any IC, much more durable! ≪/span>

n Whole circuit board layout is quite strict and reasonable, PCB wiring using ground as a whole. This amplifier Board is stable and reliable, high-power output; sound beautiful and mellow, sound field open. Grills, low frequency sound solid and strong, signal to noise ratio is excellent, wide dynamic range; details clear, excellent transient response, play a variety of music to cope, playback of the family environment and achieve very good results. ≪/span>

Basic parameters:

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Supply voltage: AC dual 20V-28V, it is recommended that more than double 26V/150 w ≪/span>

Output power: 68W*2

Speaker impedance: 4-8 ohm

Potentiometer Center spacing: 25mm

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。 (Burn 3886IC is not covered under warranty, please note that connection)