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Promote Mono Audio Amplifier KRELL KSA50 ClassA High Power 50W Mono Professional Power Amplifiers KSA50 Mono Speaker Kits(Tube not included)
- This line is the force, KRELL KSA50 handed down generation of machine;Complementary differential input, America's top sound PASS the chief designer of Nelson PASS also say, KSA50 lines than the current 95% of HI - END amplifier well;Transistor 2 sc2240, 2 sa970 BD139, BD140, 2 sc5171 drive pipe, 2 sa1930 are imported, Toshiba, Hitachi, tube;Power amplifier fill tube for classic Toshiba name sc5200 2 + 2 sa1943;Buyers can also choose not to fill, choose other power tube, such as manufacturing, etc.;Different power tube sound power and the effect of different listening this as is known to all, buyers can try...
- Output power: 150W / 4ohm load; (Total harmonic distortion THD + N <0.3%), DC +-50V, 4 ohm load measured.
- Speaker Impedance: Available 4-8 ohms.
- PCB size: 138 * 56MM. Very small, suitable for connecting
- Power supply: DC Dual 18-50V transformer 200 watts or more, the need to replace withstand higher voltages higher capacitance.
- Discrete Tube: 2SA1943 2SC5200, classics on the tube(Actual delivery of boards).
This suite of lines from the force KRELL KSA50 handed down generation of machine.Complementary differential input.
- A piece of circuit board is only one channel,Stereo need two pieces of current board
- Electricity must be installed before the radiator
- After completion of welding with good heat sink (note that the pipe and the heat sink should be insulated handle), adjusting VR2 (5 k precision is adjustable Resistance) makes the static current, about 50 ma VR2 counterclockwise static current, clockwise is reduced.Suggestions on electricity clockwise twist laps before!Safety!Don't put wrong resistor!
- Neutral zero, adjust VR1) (20 k closely adjustable resistance, make the output (OUT) of terminal ends (i.e., the power output)
Close to zero millivolt;
- Remember that the polarity of the dc voltage power supply end don't answer the reverse,the same to Audio input terminals
- Resistance are 1% accuracy of metal film resistor (except 1 w as 5% accuracy and 5 w non-inductive resistor), the CBB capacitor used for philips CBB capacitance.
- The electrolytic capacitor kingbox, NOVER, LELON well-known capacitance, etc. Ensure the stability of the circuit, and noise to remove and clean.
- The audio source coupling capacitance choose German imports 1 uf horse capacitance, each channel to ensure that the small signal quality clean and clear.
- Black 3Pin is AC power input terminals: +V GND -V select Dual 18-50V DC voltage.
recommended dual 35V DC.
- PCB size: 56mm*138mm
- Power supply:DC double 18v to 35v, recommend to use DC double 35V