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Company Profile

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Hengrong Trading Co.,Ltd.(Audio Dept.)
[China]

Address:
3058 NANXIN ROAD, NANSHAN Shenzhen Guangdong 518052 China

Phone:
86-755-86191373

Contact name:
Roy zhong

Hengrong Trading Co.,Ltd.(Audio Dept.)

Product

	CAYIN/SPARK INTEGRATED VACUUM TUBE AMPLIFIER 743D

CAYIN/SPARK INTEGRATED VACUUM TUBE AMPLIFIER 743D

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Model Number	743D
Brand Name	Cayin/Spark

Two Full Music 300Bs are used for class A S.E amplification. This vacuum tube not only is of great speed to the music signal, but also high dynamic.
The toroid power transformer and EI audio transformer are specially manufactured for SPARK 743D by applying our unique workmanship, which has low magnetic leakage, wide frequency response and low impedance.
Two 6922s and two 6N8Ps/6SN7s are used in the amplifier.
One 5Z3P is used for rectification.
All-vacuum tube design, all hand-made.POWER OUTPUT： 2？0w ( 8Ω)
FREQUENCY RESPONSE: 20Hz～20kHz
THD: 2%（1kHz)
INPUT SENSITIVITY: 620mV
INPUT IMPEDANCE: 100k Ω
OUTPUT IMPEDANCE: 4 Ω、8Ω
S/N RATIO: 85dB
DIMENSION: 320？90？00mm3
WEIGHT: 25kg
POWER CONSUMPTION: 130W