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AS1199KT - 200 Watt Hi-Fi Amplifier, Mono or Stereo (2N3055)

Ability Level 4: AdvancedProduct Formats: Pre-Assembled Module
or Self-Assembly Electronic Kit

Based on a tried, tested and reliable design using 2N3055 transistors. Relay soft start delay circuitry and current limiting for loudspeaker protection. Easy bias adjustment with the help of two LEDs.

The circuit consists of two separate class AB amplifiers that can provide a STEREO output of up to 100 Watts RMS @ 4 Ohms (70W @ 8 Ohms) per channel.

By simply adding a jumper to the board you can turn it into a MONO output of up to 200W @ 4 Ohms (140W @ 8 Ohms).

Includes all board mounted components, large pre-drilled heatsink and kit version has solder for assembly.

Input Voltage36Vdc/8A symmetrical power supply (see kit 1209)
Output Power1 x 200 Watts RMS (4 Ohms, mono output)
1 x 140 Watts RMS (8 Ohms, mono output)
2 x 100 Watts RMS (4 Ohms, stereo output)
2 x 70 Watts RMS (8 Ohms, stereo output)
Input Sensitivity1V RMS
Input Resistance47K Ohm
Frequency Response10Hz - 60KHz (-3dB)
Dumping Factor>100 (500Hz)
Voltage Gain21 times
THD<0.01% (full power with load)
Slew Rate40V/uSec.
S/N Ratio>90dB
Board Dimensions~ 140 x 165mm
Weight~ 450 grams
Board ConnectionsSolder Posts
Product FormatsSELF-ASSEMBLY Electronic Kit (KT) or
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
Documentation1199 Schematic & Connection Diagrams
Amplifier Power Supply General Advice
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