| Quantity | 3+ units | 10+ units | 30+ units | 50+ units | More |
|---|---|---|---|---|---|
| Price /Unit | $54.74 | $53.63 | $51.95 | $49.72 | Contact US |
Willsenton R8 KT88 45W+45W Vacuum Tube Integrated Amplifier Push-pull Power Amplifier (Black)
$1,621.96
Willsenton R8 KT88 45W+45W Vacuum Tube Integrated Amplifier Push-pull Power Amplifier (Silver)
$1,621.96
Willsenton R-800i Single Ended Class A Amplifier Vacuum Tube Integrated Amplifier 50W+50W 300B + 805
$2,912.97
LM4702 2x100W A Class B Class Amplifier Board Assembled
Technical parameters:
- Output power: 100W+100W (8) THD=0.03%
- Operating voltage: recommended voltage level (60) V, current level 55V
- Working type: Class A B
- Input impedance: 33K
- Output impedance: 4-8Ω
Features:
- Voltage amplification of the amplifier board adopts the half LM4702
- The Japanese original SAP15P/SAP15N Ken Hill Darlington amplifier of current power amplifier board, its tone is widely praised by the industry
- Separate power supply power of voltage and current level of the power amplifier board, dual power supply design, favorable to improve sound quality, reduced after class dynamic interference to the former class, if the voltage level of the power amplifier board uses the parallel type regulated power supply, due to low resistance characteristics of parallel voltage stabilizing power supply, the power amplifier of the signal-to-noise ratio and sound quality greatly enhance.
- The static current of the power amplifier current is adjustable by the precision adjustable resistance. DIY enthusiasts can tune the different tone according to their own preferences.
- The power amplifier board adopts the double side PCB design, with the high quality components, 1% precision Japanese KOA metal film resistor, American mica capacitor, German WIMA capacitor, Japanese Ruby high-speed low resistance high voltage electrolytic capacitor
- PCB size: 173 x 91 mm; plate thickness: 2mm, copper foil thickness: 2 oz, 2 times the ordinary board
- The protection circuit uses the UPC1237 speaker special protection chip, has the time delay to connect the loudspeaker, the output midpoint protection, the work is reliable.
