Product description:
L20.5 version, a set of 2 channels 2 boards.
4 per pair of channels imported KEC KTB817 KTD1047 power tube.
Ultra-low distortion circuit, HIEND design standards.
L20.5 amplifier parameters:
Output Power :
200W 8R, 400W 4R + / -63V power supply.
125W 8R, 250W 4R + / -50V power supply.
250W 4R, 500W 2R + / -50V power supply
Maximum output current: 15A, the maximum output voltage sine wave: + /-63V.(+ / -65V power supply)
Quiescent current per channel: 20MA
Static power = supply voltage: 0.02 (2W + -50V)
Supply voltage range: + / - 24V to + / -65V
Recommended supply voltage and radiator standard:
+ / -35 to + / -50V, radiator 0.5KG per channel
+ / -40 to + / -60V, radiator 1KG per channel
GAIN = 31 times
Damping coefficient> 400, 8 ohm load.
Signal to noise ratio> 98DB.
Input Sensitivity: 2V RMS 200W 8R Power
Wiring Connection:
VCC +: Positive power supply
VEE-: Negative power supply
PGND: Power Ground
IN +: Input signal +
IN-: Input signal -
OUT +: Output signal +
The negative speaker is connected to the power board GND.
Proposed 220V transformer primary series with a bulb for testing. Remove the bulb after normal use.
Package included:
2PC L20.5 Dual Channel Audio Amplifier Board Amplificador 250W*2