Limited stocks available! Please note that main heatsink holes were drilled slightly out of line so it does not sit exactly square to the board.
Based on a tried, tested and reliable design using 4x 2N3055 transistors. Relay soft start delay circuitry and current limiting for loudspeaker protection. Easy bias adjustment with the help of two LEDs.
Circuit consists of two separate class AB amplifiers that can provide either a STEREO output of up to 100 Watts per channel @ 4 Ohms (60W @ 8 Ohms) or by moving a jumper on the board you can turn it into a bridged MONO output of up to 200W @ 4 Ohms (120W @ 8 Ohms).
Includes all board mounted components and heatsinks.
Specifications| Input Voltage | +/- 36Vdc, 8A symmetrical power supply (custom designed kit 1209 is suitable) |
| Output Power | 1 x 200 Watts (4 Ohms, mono output) 1 x 120 Watts (8 Ohms, mono output) 2 x 100 Watts (4 Ohms, stereo output) 2 x 60 Watts (8 Ohms, stereo output) |
| Input Sensitivity | 1V RMS |
| Input Resistance | 47K Ohm |
| Frequency Response | 10Hz - 60KHz (-3dB) |
| Dumping Factor | >100 (500Hz) |
| Voltage Gain | 21 times |
| THD | <0.01% (full power with load) |
| Slew Rate | 40V/uSec. |
| S/N Ratio | >90dB |
| Board Dimensions | ~ 140 x 165mm |
| Weight | ~ 450 grams |
| Board Connections | Solder Posts |
| Product Formats | PRE-ASSEMBLED Electronic Module (AS) Product Formats Info |
| Documentation | 1199 Schematic & Connection Diagrams Amplifier Power Supply General Advice |
