Preamp Tone Board, 2.0 Preamp Stereo NE5532 Tone Board Preamplifier

Preamp Tone Board, 2.0 Preamp Stereo NE5532 Tone Board Preamplifier Description

The Correction capacitor adopts , the lower distortion effect is better, the capacitor adopts the chemical capacity of 2x3300UF, Use more than 3A and rectify, continuous power to strong support.
Choose the metal resistance rings, the accuracy of +/- 1% rings the metal film resistance is used in the main circuit, the machine has good signal-to-noise ratio.
PCB used 1.6mm thick double-sided board, 2.0oz thick copper, tin the whole process, to good performance of current size.The first-rate PCB quality.
Using fully dustproof potentiometer, the performance is more stable, more than ordinary potentiometer.
Class aa parallel adjustment type regulated power supply the characteristics of high speed, low noise, low internal resistance.In noise, music sense of detail and extension, etc., are all series of regulated power supply can not achieve.

pressure switch no parallel with the dynamic load performance of good, because when the conduction degree of the power light adjustment tube is low, the approximate b, so that the dynamic load accelerates from zero to 60 ma, the power constant current source in parallel was a lot of current to adjust the tube, Operating in a class, for dynamic load from 30 ma to 90 ma, the two reflect the speed must be different.
The whole circuit board walking line layout is quite precise, rational overall printed circuit line by means of grounding to one point.The work is stable and reliable, low frequency ence composed of a strong and strong, signal-to-noise ratio, the dynamic range is wide; Clear details, transient response, playing all kinds of music are to face, bring the sound environment into family has very good performance.
This board with sound switch, high and low sounds when switching to sound can be adjusted
Power supply voltage: AC12V-0-AC12V or 15V
Colour: blue
Material: plastic
Size: 146x68mm

Package Contents:
3 * Voltage Regulator

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.