Finished Current Feedback HI-end preamplifier Refer to Marantz HDAM-SA3 circuit

Product Details:

Referring to the circuit design of the Marantz HDAM-SA3 current feedback core module.High resolution, high conversion speed, low distortion, low noise, and flat bandwidth High notes are loose and delicate, while low notes are clean and powerful

All new components
30 pairs of high specification and high stability direct insertion transistors
KOA high-precision and high stability resistor
ELNA coupling capacitor
Panasonic power decoupling electrolysis
CNC machined all-aluminum chassis
ALPS27 potentiometer
15W encapsulated toroidal transformer
Taiwan Teflon oxygen-free copper signal cable
High-quality RCA with gold-plated pure copper

Parameter:

Weight: 2.5kg
Size: 280*255*60mm, including standoffs, protruding potentiometer knob, and rear RCA
Undistorted output: 14.90V
Magnification: 4.92 times
Residual noise: 5.3uVUltra-low
signal-to-noise ratio: 127.3dB      Ultra-high
Dynamic range: 128.6dB - Ultra high
THD distortion: 0.000076% - extremely low
THD+N distortion: 0.000228% - ultra-low
Intermodulation distortion: 0.000251% - extremely low
Frequency response bandwidth: ±0.035dB, ultra-flat

Package List:

1 × HDAM-SA3 circuit Preamplifier（For safety during transportation, the power input cable is not included by default）