SA140DIY
Dual Mono Amplifier Stage 4
The gallery below shows a DIY amplifier stage 4
Measurements in true/realistic environment:
Power output RMS watts, 1KHz 0.2% THD:
86 Watts 37.9 Vac 16.6 ohms.
152 Watts 35.6 Vac 8.3 ohms.
254 Watts 32.7 Vac 4.2 ohms.
342 Watts 26.8 Vac 2.1 ohms.
THD: 0.0039% @ 10 Watts, 8 ohms., 1 KHz. SA140TINY THD.pdf
IMD: 0.016% @ 10 Watts, 8 ohms., 1 KHz.
SNR: 0.28mV: 102dB (non weighting) @ 8.3 ohms.
Linearity:
5 Hz- 45 KHz +/- 0.1dB.
5 Hz - 270 KHz +/- 3dB.
Weight: 18.6 Kg.
Size: 450 x 450 x 90 mm.
Scematics of 4 different levels of SA140DIY
Stage 1:
Basic amplifier.
2x SA140TINY Amplifier modules.
1 x PS140TINY Power Supply modules.
Stage 2:
Basic amplifier with soft starter.
2x SA140TINY Amplifier modules.
1 x PS140TINY Power Supply modules.
1 x SS100A Softstarter.
Stage 3:
Basic amplifier with soft starter & balanced input controller.
2x SA140TINY Amplifier modules.
1 x PS140TINY Power Supply modules.
1 x SS100A Softstarter.
1 x INP22A XLR/RCA Input Selector.
1 x INP22PSU Power Supply For INP22A.
Stage 4:
Dual mono amplifier with soft starter & balanced input controller, XLR & RCA inputs.
2x SA140TINY Amplifier modules.
2 x PS140TINY Power Supply modules.
1 x SS100A Softstarter.
1 x INP22A XLR/RCA Input Selector.
1 x INP22PSU Power Supply For INP22A.
