Transaudio JC-2 Class A Preamplifier MAX Version Preamp (Silver) Supports Two Power Amplifiers

Transaudio JC-2 Class A Preamplifier MAX Version Preamp (Silver) Supports Two Power Amplifiers

Circuit Features:
* MK JC-2 Class A amplification circuit
* Fully DC-coupled design: no coupling or feedback capacitors, resulting in a transparent and smooth sound
* Field-effect transistor input stage
* Output stage uses metal-can packaged triodes; operates with 20mA Class A current
* Dual-mono design: complete channel separation with zero crosstalk between left and right channels
* One RCA single-ended input
* Simultaneous dual output: RCA single-ended + XLR balanced — can connect to two power amplifiers
* True balanced output terminals (balanced wiring uses American standard wiring method)
* Ultra-minimalist design: ultra-short signal paths with all circuits affecting sound quality (like balanced input and source switching) removed

Materials & Components:
* All brand-new components
* 8-piece filter capacitor array
* Precision voltage regulation using original LM317 and LM337 for ON
* High-precision full aluminum housing
* 50W custom high-quality R-core transformer
* High-grade RCA terminals made in Taiwan: pure copper with gold plating
* Gold-plated IC sockets
* Original audiophile resistors for KOA
* High-quality printed circuit board: 2mm thick board with 70µm thick copper
* Assembled using American solder wire for ALPHA

Specifications:
* Chassis dimensions: 320 × 200 × 80mm — medium-sized MAX preamp chassis
* Total weight: 4kg

AP Test Parameters:
* Output RMS Voltage: 9.5Vrms
* Channel Gain: 15.5dB (6.0× amplification)
* SNR: 125dB
* Dynamic Range: 125dB
* Channel Crosstalk: –106dB (benefiting from monoblock design)
* THD: 0.00046%
* THD + Noise: 0.0009%
* Intermodulation Distortion: 0.00158%
* Frequency Response Bandwidth: ±0.049 dB (20Hz-20kHz, completely flat)

Quality Assurance and After-Sales Service:
* To ensure quality, each unit undergoes comprehensive AP testing to verify it meets design specifications.
* Tests include: bandwidth, noise (signal-to-noise ratio), dynamic range, distortion, intermodulation distortion, channel separation, and gain.
* Each unit goes through a 72-hour burn-in process, including 1 hour of full-load testing at 8Ω and over 1 hour of listening evaluation.
* The main unit comes with a 1-year warranty.

Packing List:
* 1 x Set of Preamp
    
Packaging Details:
* Weight: 5kg