Modular stereo preamplifier JC-2 kit premium parts ultimate performance !

Description

Note on 25 Aug 2021 : No more shield can in the pictures.
This kit does not includes the JFETs. For JFETS to be included, extra cost of US.00 has to be added on.
This is a
n ultimate
incarnation of the legendary preamplifier JC-2
, taking a modular board approach.
The projects consists of three boards. The main board contains the coupling, feedback components and DC power lines and features a
monoblock
structure.
The two modules contain the broadband high current gain circuitry for left and right channel respectively.
In our test , when incorporating with our Kubota power supply kit, the preamplifier gives a very refined , detailed sound, extended low end and big soundstage.
On bench the circuit measured to have low distortion and boardband.
Th
is kits features the best components :
1. non-magnetic Dale resisto
rs
;
2.
Silver mica capacitors ;
3. Highly reliable film capacitors ;
4. Zetex high gain high current linear transistors
;
5. Elna Slimic II capacitors( replacing Cerafine with better performance) ;
5. Toshiba matched JFETs ( NOT INCLUDED) ;
PCB dimension : Main board - 178mm x 153mm. Module boards : 50mm x 52mm.
PCB thickness : 2mm.
Copper thickness : 75um ( 4 times normal thickness).
Surface finishing : Double-sided solder resist for maximum reliability.
The four coupling caps are not included in this kit. Users can pick their favorite coupling capacitors.
Operating voltage : DC input +/-18V 50mA per channel.
This is a non-assembled kit. The assembled picture is for reference only.
We provide schematic and part list to buyers by EMAIL.
We do air shipping worldwide at US.00. We welcome combine shipping.
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