CD-3.8高級全平衡激光唱機

Audio output level: 2.5V

Frequency response: 10Hz-20KHz±0.5dB

Dynamic range: ≥100dB

Signal-to-noise ratio: >94dB (tube output)、>95dB (transistor output)

Harmonic distortion: <0.005% (tube output)、<0.003% (transistor output)

Channel separation: >90dB

Dimensions (WxHxD): 446×120×420(mm)

Weight: 13.5kg

• This machine optimizes the assembly process of the movement, so that the accuracy of reading discs, the amount of sound information and the sound density are significantly improved;

• This machine has two output options of transistor audio output and tube audio output;

• Transistor audio output adopts field Effect tube class A current output device, deep and powerful low frequency, wide sound field, powerful dynamic;

• The audio output of the tube adopts the Russian-made enthusiast golden tube 6922, which has beautiful sound performance, better analytical power and better air feeling;

• It adopts Philips high-performance VAM1202 movement, coupled with a highly integrated CD7-II digital servo IC, with Accurate reading, strong error correction ability, good shock resistance, etc.;

• The digital and analog conversion chip is the decoding chip PCMl792 of Burr-Brown Company in the United States. The chip has 24bit conversion accuracy and 192KHz sampling frequency. In addition, to ensure conversion accuracy, it also uses an independent active clock;

• The analog signal is amplified using Burr-Brown’s high-precision, high-speed operational amplifier OPA627 and OPA2134 and OPA2604, and is equipped with Use a third-order GIC low-pass filter to effectively filter out the interference noise of the digital signal; 

• The analog power supply is powered by a high-flux, low-leakage toroidal transformer. Numbers, the movement power is also supplied by another independent toroidal transformer to ensure that all parts of the circuit do not interfere with each other.

• Electron tube and field effect tube hybrid high-voltage stabilized power supply with extremely high voltage stability. The AC ripple coefficient is extremely low, and the sound performance is more "guts"