Class A YJ-KSA50 Amplifier Board 50W+50W MJ15024G/MJ15025G/MJE15034/MJE15035

Class A YJ-KSA50 Amplifier Board 50W+50W MJ15024G/MJ15025G/MJE15034/MJE15035

Description:
The KSA50 and KSA80 have been hailed as the most vocal Krell amplifiers, among which the KSA50 is Krell's first amplifier and is the pinnacle of its home (in terms of timbre). Until today, Nelson Pass, the chief designer of the U.S. Audio Brand Name Pass, and the founder of Threshold, another excellent audio brand, also said that the KSA50 line is superior to the current 95% HI-END power amplifier!

Product Details:
- Using the original ON Semiconductor MJ15024G/MJ15025G and MJE15034/MJE15035.
- Inter-stage coupling capacitor uses WIMA top capacitor 1UF for natural sound, wide sound field.
- The resistor uses high-precision cylindrical color-ring resistors, and the main loop adopts a ± 1% metal ring resistance to ensure a good signal-to-noise ratio.
- The PCB adopts a 1.6mm thick double-sided plate and a 2.0oz copper thick spray process to ensure good current performance. First-class PCB quality.
- The use of advanced speaker protection circuit, effectively eliminate the impact sound and DC output protection function of opening and shutting down, making your speaker more secure.
- The layout of the entire circuit board layout is quite rigorous and reasonable. The overall PCB layout uses a point grounding method. The power amplifier board is stable and reliable, and has a large output power; the sound is mellow and the sound field is open. Strong sense of three-dimensional, low-frequency solid and powerful, signal-to-noise ratio is very good, wide dynamic range; clear details, excellent transient response, playing all kinds of music to cope with, in the family's playback environment has a very good performance.
- The price is for a pair of amplifier boards.

Parameters:
- Input Voltage: positive and negative 30V-50V DC, AC 12V-15V (single group, two-channel two groups). It is recommended to use +-45V
- Output Power: Class A 50W+50W undistorted power, Class A and B are 250W+250W undistorted power output.
- Output Impedance: 4-8Ω
- After it is powered on, the red light is on and the circuit is normally green for 3-5 seconds.
- Single Board Size: 280 x 95 x 45mm (with radiator)
- N.W. for Single Board: 0.5 kg

Package Included:
- 2 x KSA50 Amplifier Boards

Note:
- The quiescent current is recommended to be 1.2A. At this time, the heat sink should be more than 4kg.
- JP6 JP7 are the quiescent current test points.