Audio Database

SL-P7
Commentary

A CD player with a jacket size of 31.5 cm wide.

A newly developed optical deck has been adopted for the mechanism, and the structure including the laser beam path has been successfully simplified.
We have also incorporated unique ideas such as the use of a new support system for the objective lens.

The servo circuit of the optical deck is stabilized by using a newly developed IC.
First of all, two newly developed ICs are used in the focus and tracking servo for the laser beam, and together with the three beam astigmatic system, stable signal reading is realized.
In addition, a newly developed small brushless DC motor is used to drive the disk.

By using three newly developed LSIs for the digital signal processing circuit, we have achieved 100% integration. In addition, similar to the SL-P10, we have adopted a coding algorithm method in our proprietary TechnicSuper for error correction. With an ordinary disk, only one data interpolation is required every 90 million hours (approximately 10,000 years). Thus we have acquired excellent error correction capability.

The D/A converter has its own high-precision and high-performance design, and achieves excellent precision by trimming the high-precision thin-film resistance element used as the reference resistance with a laser beam.
This realizes 16-bit D/A conversion with a non-linear distortion of ± 0.002% or less.

The low-pass filter is an 11th-order low-pass filter.

You can specify the music to be played by the number of times you press the skip key.

When the disk is stopped, the search / index key functions as an index designation key, and it is possible to find the beginning of the disk with the index number.

The index key acts as a search key while playing or posing so that you can listen to the cue tone and find the desired location.
It is an auto 2-speed design that switches from 3 x speed at the beginning when the key is pressed to 30 x speed after 3 seconds.

You can repeat all songs or one song.

It is equipped with Auto Return Play that immediately resumes playing from the top of the disc when you press the play key during playing.

Auto timer play is possible.

Equipped with synchronized recording terminal and accessory terminal.

There are 2 variations, black and silver.

Model Rating
Type CD Player
Signal Format
Sampling frequency 44.1kHz
Error correction system Technics super decoding algorithm
Compound 16-bit straight line
<Audio>
Number of audio channels 2-channel stereo
Frequency characteristic 4 Hz to 20 kHz ± 0.5 dB
Dynamic range 96 dB or more
Signal-to-noise ratio 96 dB or more
Harmonic distortion factor 0.003% or Less (1 kHz, 0 dB)
Channel separation 90 dB or more
Wow and flutter Crystal accuracy
<Pickup>
Method Astigmatic 3-beam
Light source Semiconductor laser
Wave length 800nm
<General>
Output voltage 2 V at 0 dB
Pwer 100 VAC, 50Hz/60Hz
Power consumption 23W
External dimensions Width 315x Height 88x Depth 325 mm
Weight 4.9kg