SONY MZ-R91 

Portable Mindisc Recorder

Features of the MZ-R91;

• Small and Lightweight Recording MD Walkman®
• Magnesium Top Cover
• Incredibly Long Playback and Recording Time
• Jog Lever for Convenient Editing Operation
• Name Bank Stores Up To 600 Characters
• Digital Recording Level Control
• 40 Second Shock Resistant Memory
• Easy Pop-Up Eject Mechanism
• High Quality Recording With Digital AGC Automatic Gain Control
• CD Text Transfer Capable
• New Slim Backlit LCD Stick Remote
• Rechargeable Battery (NH-14WM) and AC Adaptor (AC-MZR55) Supplied
• Character Input While Recording
• Battery Level Indicator on Unit LCD
• Sampling Rate Converter
• Date and Time Stamp Function
• Digital Mega Bass® Sound System
• Digital Synchro Recording
• Digital Connecting Cable Supplied
• Available in Blue

 

Features

• Small and Lightweight Recording MD Walkman® combines the superb sound reproduction quality of digital technology with the ease and convenience of MiniDisc recording, in a unit less than an inch thick and virtually as small as a MiniDisc itself
• Magnesium Top Cover is rugged, durable, and ultra lightweight for carrying convenience
• Incredibly Long Playback and Recording Time -- up to 14.5 hours record and 29 hours playback with 1 Sony "AA" alkaline battery and Sony NH-14WM rechargeable battery
• Jog Lever for Convenient Editing Operation lets you move quickly through tracks and other available functions with the press of the jog lever, then select desired track or operation with just another press of the lever
• Name Bank Stores Up To 600 Characters for easy, fast recall with no need to re-enter information
• Digital Recording Level Control allows you to manually achieve a consistent recording level on your MiniDisc no matter what the source of your recording
• 40 Second Shock Resistant Memory resists bumps or vibrations while the laser scans ahead on the disc and stores 40 seconds of music in memory, for virtually skip-free playback
• Easy Pop-Up Eject Mechanism ejects the MiniDisc media which allows easy insertion and removal while on the go
• High Quality Recording With Digital AGC Automatic Gain Control ensures proper recording levels through Automatic Gain Control to prevent overload distortion
• CD Text Transfer Capable using an optional cable (RK-TXT1) and a CD Text-capable CD player, this feature allows CD text to be transferred onto MD during recording
• New Slim Backlit LCD Stick Remote provides direct access to the player's functions, with backlit display of song title, disc title, playback status and battery function, and is easy to see even in low light, and has stereo mini-jack on remote for headphones
• Rechargeable Battery (NH-14WM) and AC Charger (AC-MZR55) Supplied offering great savings and convenience over disposable batteries, and allows battery recharging operation from a standard household AC outlet
• Character Input While Recording lets you create or modify individual track information as the MiniDisc is being recorded
• Battery Level Indicator on Unit LCD shows you at a glance when battery power is low
• Sampling Rate Converter allows MiniDisc recording from other digital media having different sampling frequencies, such as digital satellite systems and DAT, and automatically converts to MiniDisc rate
• Date and Time Stamp Function automatically places a date and time marker on each recording for future reference
• Digital Mega Bass® Sound System provides rich, deep bass tones with digital signal processing for virtually inaudible harmonic distortion
• Digital Synchro Recording lets you make digital copies of CDs onto a MiniDisc with synchronized operation that begins recording when digital input signal is received
• Digital Conncecting Cable Supplied for connecting to home digital preamplifier and to CD, DAT or digital satellite system unit
• Available in Blue for a distinctive and stylish appearance

 

Specifications

• Format--Digital Audio MiniDisc System
• Sampling Frequency--44.1 kHz
• Sampling Rate Converter--From Optical-In: 32kHZ, 44.1kHz, 48kHz
• Data Compression Method (Coding)--ATRAC (Adaptive Transform Acoustic Coding)
• Frequency Response--20-20,000Hz +/-3dB
• Wow Flutter--Unmeasurable
• Inputs--DC In, 3V
• Mic In, plug-in power, stereo mini jack--* Optical Line In, stereo mini jack
• Outputs--Headphones/Remote: Stereo mini jack
• Line out: stereo mini jack--* Power output

 

Size/Weight

• 3 1/8" x 11/16" x 2 7/8"(78.9 x 17.3 x 72mm)
  
• 3.7 oz (105g) without batteries

Supplied Accessories

• RM-MZ25Remote Control
• Digital Connecting Cable
• AC-MZR55 AC Power Adaptor
• Dry Battery Case for "AA" battery x 1
• NH-14WM Rechargeable Battery
• MDR-A34SP Headphones
• Carrying Pouch
• Battery Case

 

Optional Accessories

• RK-TXT1 Joint Text Cable
• Sony "AA" Alkaline Battery x 1
• POC-15AB/POC-15B Optical Digital Cable
• ECM-717/MS907/MS957 Stereo Microphone
• CPA-9C Car Cassette Adaptor
• DCC-E230 Car Battery Cord
• Active Mini Speakers

 

Illustration giving an indication of size.

W 78.9mm  x H 18mm  x D 72mm

What HiFi Choice had to say about the MZ-R91: From July 2000 Edition In the must-have shiny toy category, this little Sony scores a perfect 10. It measures just 78x72x17mm, which makes it the smallest recording MD in the world, with a light yet rigid body. It's a super-slick looker too, a vision of subtle curves and ellipses with a choice of metallic finishes and perfectly proportioned controls. Unfortunately, in the quest for this svelte physique, Sony has made it rather less intuitive to operate than models of old - secondary functions are selected via a 'jog lever', very neat in theory but awkward in practice. The in-line remote is a little quirky too, but get used to the controls and you'll find this Sony a slick and superbly specified MD. Playback performance finds the Sony a little podgy in the bass and a touch wayward up top, but fine mid-frequency strengths carry it through with a substantial yet unassuming character. Recording quality is roughly similar, though tainted by a degree of sibilance, and overall this is a fine alternative to the (ahem) sharper-sounding Sharp. Be warned though: no cables are supplied for recording, so if you want optical and/or line interconnects you'll have to buy them separately.

Convenient CD-to-MD Joint Text function. Allows you to record CD Text data onto your MD while recording from a CD to an MD.   The recording/playback-capable MZ-R90/R91 MD Walkman models are Joint Text compatible. Connect your CD Walkman*1 with either the MZ-R90 or MZ-R91 via an optical cable (sold separately) and a CD Text cable (sold separately). When you record digitally from your CD*2 to an MD, both the sound and CD Text data will be recorded on the MD. This convenient function lets you make your own original MDs with ease.

*1 Compatible models: D-E01/E990/E880 *2 Only data that is CD Text compatible Note: You can dub each song onto your MD in any order you wish.

 

 

 

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Sites with reviews of the MZ-R91

http://www.techreview.com.my/reviews/audio/mz-r91.shtml   

http://www.minidisc.org/mzr91_review.html

http://hive.me.gu.edu.au/~csand/md/mdpage/minidisc/part_Sony_MZ-R90+91.html

 

 Mick Evans 1999-2000

 Last updated 30 August 2000

e-mail [email protected]