Technics SL-P70

Commentary

Concise G Series CD player with technology developed for the best CD player.

The D/A conversion part is equipped with S-Advanced Mash 1-bit DAC adopted in SL-P2000.
This system achieves a theoretical dynamic range of 145 dB by incorporating a fourth order noise-shaping circuit in the conventional advanced Mash, and is greatly upgraded.
The LSI consists of two chips, an S-Advanced Mash and a PWM-output IC, to avoid the influence of digital noise. The PWM output is a Class A push-pull current amplifier to suppress the occurrence of overshoot and undershoot in the PWM waveform and realize an ideal PWM output with a stable peak value.

A digital servo system is used for the servo circuit.
In this method, the focus, tracking, and traverse servo amounts are optimally controlled according to the disk condition. This improves the access accuracy even for CDs in poor condition, improves the performance of the disk, and suppresses fluctuations in the time axis of the digital signal and the ripple of the servo current, resulting in clearer sound contours and sound image localization.

The power supply is equipped with virtual battery operation.
This circuit takes advantage of the characteristics of the FET element to prevent noise from the home AC power supply from entering the audio circuit via the reference potential generation circuit.

It uses carefully selected audio parts.
Each part is considered from both physical characteristics and sound quality. For example, a high-sound-quality carbon film resistor using a non-magnetic cap is used for the resistor, and electrolytic capacitors for audio and polypropylene capacitors for audio are used for the capacitor. Thus, consideration is given to low distortion and improved transparency.
Gold-plated output terminal and digital optical terminal are mounted.

Model Rating

Type	CD Player
Frequency characteristic	2 Hz to 20 kHz ± 0.2 dB
Dynamic range	99 dB or More (EIAJ)
Signal-to-noise ratio	120 dB or more (EIAJ)
Total harmonic distortion factor	0.002% or less (EIAJ)
Channel separation	110 dB or less (EIAJ)
Wow flutter	Below Measurement Limit (EIAJ)
Pwer	100 VAC, 50Hz/60Hz
Power consumption	10W
External dimensions	Width 270x Height 85x Depth 309 mm
Weight	3.0kg