The Personal Hi-Fi Blog: Sharp MD-DS70

Sharp Auvi MD-DS70

Portable 1-bit ΔΣ Dolby Surround MDLP Player

In 2000, Sony announced MDLP (MiniDisc Long Play), which added new recording modes based on a new codec called ATRAC3. In addition to the standard, high-quality mode, now called SP, MDLP adds LP2 mode, which allows twice as much recording time (160 minutes on an 80-minute disc) of good-quality stereo sound, and LP4, which allows four times more recording time (320 minutes on an 80-minute disc) of medium-quality stereo sound. The bitrate of the standard SP mode is 292 kbit/s, and it uses separate stereo coding with discrete left and right channels. LP2 mode uses a bitrate of 132 kbit/s and also uses separate stereo coding. The last mode, LP4 has a bitrate of 66 kbit/s and uses joint stereo coding. The sound quality is noticeably poorer than the first two modes but is sufficient for many users. Tracks recorded in LP2 or LP4 mode playback as silence on non-MDLP players. Sony announced they would cease development of MD devices, with the last of the players sold by March 2013{wikipedia}

Meet The Amazing Sharp MD-DS70 Dolby Surround Player

You can choose your favorite sound according to the genre and situation. A discerning portable MD that makes the most of the high-quality sound of a mobile 1-bit digital amplifier.

MD-DS70 Highlights:

+ Mobile 1-bit digital amplifier.
+ DSP Sound & Equalizer.
+ 205 hours of continuous playback.
+ Deep Digital X-Bass.
+ Smart Play.
+ Up to 160 seconds Skipping Guard Memory.
+ 4-pole plug headphones.
+ MDLP group mode.

Digital Sound Processing features:

High-definition ΔΣ modulation circuit that ensures the dynamic range within the audible band.

The quantization noise is moved outside the audible band by ΔΣ modulation processing, producing a 1-bit digital signal that maintains the dynamic range within the audible band.

Achieving clear sound with good clarity, full-bridge type output stage.

Mobile 1-bit digital amplifier adopts a full-bridge type with independent output stages for +/- (plus/minus) audio signals. As a result, distortion caused by factors such as voltage fluctuations and noise components cancels each other out, making it possible to reproduce music that is more faithful to the original sound.

Equipped with a Dolby Headphone System for immersive sound.*

It reduces the feeling of "the sound is ringing in your head" when using headphones and realizes a sense of realism as if you were listening through speakers. Adopting 3-Mode sound image:

• Studio: Standard effects for all music and movie sounds

• Live: Especially effective for music playback

• Dome: Effective for concert music, etc.

*Dolby Headphones certified virtual system for headphones. Jointly developed with Lake Technology Co., Ltd., and Dolby Laboratories.

From 65 types of sound modes, You can select your favorite presence and sound quality.*

In addition to the "Dolby Headphone System" and "X-BASS" that allows you to enjoy powerful deep bass, it is equipped with "DSP Surround" that creates a sense of spaciousness and presence, and a "DSP Equalizer" that allows you to adjust the sound quality according to the song. In addition, we have prepared 2 modes for the user's memory, which allows you to adjust the low, mid, and high frequencies in 3 steps each, change the sound to your liking and store it in memory.

DSP Surround:

LABO: Enjoy the feeling of being in a room with little reverberation.

CLUB: You can enjoy the presence of being in a club.

HALL: Enjoy the realism of being in a hall.

ARENA: Creates the feeling of being in a large arena.

DSP Equalizer:

HEAVY: Emphasizes the low and high frequencies to enjoy sharp-sound quality.

POPS: Suitable for a wide range of songs such as Pops.

JAZZ: Suitable for music such as Jazz.

DANCE: This mode is suitable for songs with a fast tempo.

VOCAL: Emphasizes the midrange to make vocals easier to hear.

ROCK: Produces a puffy sound suitable for rock music.

SOFT: You can enjoy an overall gentle sound.

USER: You can store your favorite sound quality in 2-mode memory.

* 50 modes combined with 10 modes Equalizer, including FLAT, plus 1 mode that does not adjust sound quality at all. 16 modes by combining 4 modes including "Dolby Headphone" NORMAL and 4 modes including "X-BASS" OFF, 5 modes including "DSP Surround" OFF and "DSP setting is NORMAL, DSP surround is OFF, DSP equalizer is FLAT.

Our mobile 1-bit digital amplifier for high-resolution sound uses unique 4-pole plug headphones.

Equipped with a 4-pole plug headphone that completely separates the left and right sounds and supports the full-bridge system. High channel separation characteristics deliver realistic sound with excellent sound localization and presence. *

* Commercially available 3-pole plug headphones can be used, but in order to demonstrate the original performance of the "Mobile 1-bit Digital Amplifier", use 4-pole plug headphones.

Body front panel: -S is a brushed-steel finish, -B is a dark blue metallic

Mixed glossy paint finish, -R/-W are glossy paint finish.

Accessories:

+ LCD remote control

+ Headphones

+ Ni-MH rechargeable battery

+ Charging Stand

+ AC adapter

+ AA battery case

+ Carrying case

+ Dedicated connection cord (analog).

Comes with a compact multi-voltage compatible AC adapter that is convenient for overseas travel. Small size and light weight are realized by adopting the switching method. AC 100V-240V power supply voltage is supported. Charging stand/You can charge easily just by placing it on the charging stand like a mobile phone.

The power saving that is unique to digital technology enables long playback of approximately 205 hours.*

By using the included rechargeable battery and high-capacity AA alkaline batteries together, a long playback time of approximately 205 hours has been achieved.

* Continuous playback time when using the included rechargeable battery and high-capacity AA alkaline batteries together (in LP4 mode)

• MDLP Navi/Indicates which mode of MDLP is being played by flashing high-quality full light.

• Easy to check song titles, etc. A remote controller with a slim design that supports multilingual display. Song titles and artist names are now easier to confirm.