Assemble Full Class A Preamplifier Board ALPS Potentiometer Pre-Amp Board

Assemble Full Class A Preamplifier Board ALPS Potentiometer Pre-Amp Board Beskrivelse

Color: As shown
Material: PC

Description Report Item Details:

Sugden SDA-1 amplification circuit
The full has no coupling or feedback capacitors, and the sound is transparent and pleasant to the ear
Single operation JRC5534DD for core amplification
The output stage adopts Class A design with 10mA Class A current
All new components
Using 4 twin field tube inputs
KOA hifi resistor
2mm thick printing plate, 70um thick copper
Using American ALPHA soldering wire for welding

Basic parameters:

Size: 92 * 102mm
Voltage: 12-17.5V
Input impedance: 220K ohms

AP test parameters:

Output effective value: 11.0V
Channel gain: 10.6dB 3.4 times
Signal to noise ratio: 132.5dB is impressive
Dynamic range: 133dB
Channel crosstalk: -97dB
THD distortion: 0.000092% very impressive
THD+N distortion: 0.00027%
Audio bandwidth: 0.039dB
Color: As Shown
Material: PC

Package Contents:
Preamplifier board x 1 (included potentiometer)