1pair L25 Sanken 2SA1186 2SC2837 Dual-channel Front Rear Power Amplifier Finished Board 250W8R w/Angle Aluminum

Product Description:
Each channel uses four pairs of original imported KEC KTB817 KTD1047 transistors
Use Sanken LAPT type audio famous tube 2SA1186 2SC2837 as the drive tube.
The front stage adopts original JRC4580 DD ultra-low noise, ultra-low distortion operational amplifier. No coupling DC amplification.
Using aviation-grade PCB material technology

The basic parameters of the power and voltage calculation of the power amplifier are:
DC power supply, + -35V voltage output power 50 watts 8R.
+ -40V voltage, output power 80W 8R.
+ -50V voltage, output power 125W 8R.
+ -63V voltage, output power 200W 8R.
+ -70V voltage, output power 250W 8R
+ -80V voltage. Output power 300W8R.

L25 combined amplifier parameters:
Output power 250W 8R, 500W 4R + -70V power supply.
200W 8R, 400W 4R + -63V power supply.
125W 8R, 250W 4R + -50V power supply.
250W 4R, 500W 2R + -50V power supply
Maximum output current 20A, maximum output voltage sine wave + -67V. (+ -70V power supply)
Quiescent current 20MA per channel
Static power consumption = supply voltage * 0.02 (2W+ -50V)
Power Supply Voltage: +-24V to +-70V
The gain of the front stage is 4.7 times. The gain of the rear stage is 25 times. The total gain is 117 times.
Frequency response range 5 HZ-300 K HZ -3DB. 20HZ-20K HZ + -0.2DB.
Distortion 100W 1K HZ THD <0.01%
Damping factor> 3000, 8 ohm load.
S/N ratio>97DB.
Input sensitivity: 0.6V RMS 250W 8R power
Size: Length 130MM. Width 95MM including angle aluminum.

Package:

 1pair L25 Sanken 2SA1186 2SC2837 Dual-channel Front Rear Power Amplifier Finished Board250W 8R



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Returns and Replacements
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