2PCS QUAD-707 Finished Amplifier Board Power Amp Board Referring to Amplifier for QUAD 707

2PCS QUAD-707 Finished Amplifier Board Power Amp Board Referring to Amplifier for QUAD 707

Specifications:
- Supply voltage: DC ± (25V ~ 55V); DC ±45V recommended
- Output power: 125W 8R; 250W 4R
- Frequency response APSYS 2 test data: 20HZ at -0DB, 10HZ at -0.3DB, 10KHZ at -0.1DB, and 20KHZ at -0.3DB (measured by SR 25V/US oscilloscope)
- THD+N < 0.01%
- PCB size: 145 x 50mm/5.7 x 2"
- Magnification (gain) = 51.5X
- Output stage quiescent current = 0 MA
- Mono quiescent current: about 100MA
- Recommended heat sink: over 500g/1.1lb per channel (at ± 45V)
- Original TLC271 op amp of high performance
- 6pcs 2SD718 transistors (180V, 10A and 100W) per channel as output transistors

Package Included:
- 2 x Finished Power Amp Boards
- 1 x Set of Accessories

Data tested by an oscilloscope:


APSYS 2 Test Data:
Frequency response: 20HZ at -0DB, 10HZ at -0.3DB, 10KHZ at -0.1DB, and 20KHZ at -0.3DB


THD+N < 0.01%

Mounting holes of transistors: