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  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
1/1
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier

Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier

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L18J8W12
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  • input voltage:
    AC110V
    AC220V
  • color:
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  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
1/1
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Finished Mark JC2mkII circuit Field effect transistor Class A HIFI DIY stereo Fully symmetrical preamplifier
  • Description
Product Details:

 JC2mkII preamp has a delicate, mellow and durable sound, crystal clear and transparent.
.
● Refer to the Mark JC-2 fully symmetrical classic Class A preamp circuit design.
● Full DC circuit design.
● The circuit is concise The signal circuit is extremely short, eliminating the sound source switching that affects sound quality.
● Fully discrete component design.
● ALPS potentiometer, noiseless, well-balanced, and durable.
● All aluminum alloy chassis.
● 4 pairs of new K246 J103 field-effect transistor differential inputs. 
● Metal encapsulated transistor with high current Class A output, capable of driving headphones.
● 50W NORATEL toroidal transformer.
● Taiwan produced high-quality RCA, gold-plated IC socket, KOA resistor

Parameters:

● Model: JC2mkII
● Input voltage: AC110V/220V (switchable) 
● Size: 430 * 90 * 280mm （including protruding parts）
● Weight: about 5kg  
● Output effective value: 9.3Vrms
● Channel gain: 15.6db 6.0x  
● SNR: 126.6dB    
● Channel crosstalk: -103.5db
● Dynamic range: 127.3dB
● THD distortion: 0.00016%
● THD distortion+N: 0.00066%
● Intermodulation distortion: 0.0028%  
● Frequency response bandwidth: ± 0.05db 20-20KHz

List:

1 x JC2mkII preamplifier  （To ensure transportation safety, the power input line is not included by default)

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BRZhifiaudio e-commerce Co., Ltd address： A3, 9th Road, Zone B, Qixing Industrial Zone, Luocun, Shishan Town, Nanhai District, Foshan,GuangDong，China
19157426618
BRZhifiaudio@outlook.com
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