Search this site

Labels

4-channel ACCUPHASE ACOUSTIC ENERGY ADC ADCOM ADS ADVENT AIFAI AIWA AKAI AKG Alchemist ALIANTE ALLISON ALTEC LANSING AMPEX amplifier AMPLIFON ANCIENT AUDIO AR ARCAM ARISTON ARMONIA AUDIA AUDIO ACADEMY AUDIO ANALOGUE AUDIO DYNAMICS AUDIO INNOVATIONS AUDIO NOTE AUDIO RESEARCH AUDIO-TECHNICA AUDIOLAB Audiostatic AUGUSTA AVALON AVID AXIOM B-I-C Bang & Olufsen BASF BASSOCONTINUO Bell Belt-Drive BEVERIDGE BEYER-DYNAMIC BOSE BOSTON BOWERS-WILKINS BOZAK BRAUN BRIONVEGA BSR California Audio Labs CAMBRIDGE CANTON cartridge CARVER CASTLE CD Player CD Transport CEC CELESTION CEMARK Centrex CERWIN-VEGA CHARIO CHARTWELL CIZEK CLARION CONRAD-JOHNSON COPLAND CORAL CORAL ELECTRONIC CREEK CROWN CYBERNET CYRUS DAC DAHLQUIST DALI DAT DBX DECIBEL DENON DIAPASON direct-drive Ditton DOKORDER DOMA DUAL DYNACO DYNAUDIO DYNAVECTOR EISA ELAC ELECTRO-VOICE EMPIRE EMT EPI EPICURE EPOS ES Series ESB Esotec ESOTERIC ESS EUMIG FAIRCHILD FOSTEX GALACTRON GALE GARRARD GENELEC GENESIS GIUSSANI RESEARCH GOLDENOTE GOODMANS GRAAF GRUNDIG H.H. SCOTT HAFLER HARBETH HARMAN/KARDON headphones HEATHKIT HECO HIRTEL HITACHI HPM idler INDIANA LINE INFINITY italian JAMO JANSZEN JBL JEFF ROWLAND JENSEN JMLAB JVC KEF KENWOOD KLH KLIPSCH KOSS KRELL KYOCERA LAE Lafayette lathe LEAK LECTOR LENCO LESA linear LINN loudspeaker LOWTHER LUXMAN LYNGDORF MAGNEPLANAR MARANTZ MARK LEVINSON MARTEL MARTINLOGAN MARUNI MASH MAXELL MBL McIntosh McLAREN MERIDIAN MERITON MICRO SEIKI MICRO-ACOUSTICS MIRAGE MISSION MITSUBISHI MONITOR AUDIO MONRIO MORDAUNT-SHORT MUSICAL FIDELITY MYRYAD NAD NAGRA NAKAMICHI NHT NIKKO NORESCO NOVA ONKYO OPERA OPTONICA ORTOFON PANASONIC PARADIGM PATHOS PEARL PHASE LINEAR PHILIPS PICKERING pioneer POLK AUDIO Power-amplifier Pre-amplifier Pre-phono Pro-Ject PSB QUAD quadraphonic RADFORD RCF receiver Reel to Reel REK-O-KUT REVOX ROGERS ROKSAN ROTEL ROYD RUARK SACD SAE sansui SANYO SENNHEISER SHARP SHERWOOD SHURE SIARE SIGNET SME SOMA SONAB SONUS FABER SONY SOTA Soundcraftsmen SPECTRAL Spica STANTON STAX Stereo 8 STILE ITALIANO STRUSS SUGDEN SUPERSCOPE Synthesis TAC TAD TAMON TANDBERG tangential TANNOY TASCAM TDK TDL TEAC TECHNICS THE FISHER THIEL THORENS tonearm TOSHIBA TRANSCRIPTOR TRIO tuner turntable ULIX Uni-Q UNISON RESEARCH unitra UREI UTAH VANDERSTEEN VOCE DIVINA VPI WADIA WHARFEDALE XAVIAN YAMAHA ZENITH ZINGALI

What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.



H.H. Scott '59





Nakamichi CR-5 cassette deck

 

Nakamichi - the measure of excellence.

Once again, Nakamichi is at the vanguard of a new trend in high-class cassette decks, providing the highest possible performance quality from every cassette while at the same time simplifying deck operation to make that performance available to everyone. The new Nakamichi CR5 Discrete-head Cassette Decks embody both the vital aspects of this trend, offering fully discrete three-head designs, direct-drive closed-loop dual-capstan transports, low-distortion/low-noise amplifiers and a host of other features.

 

Direct-Drive Dual-Capstan Transport

Nakamichi's Asymmetrical Diffused-Resonance Dual-Capstan Transport, with left and right capstans (and flywheels) of different diameters, greatly reduces flutter. There is nothing touching the tape between the two capstans to risk the introduction of scrape flutter and modulation noise, that is, there is no intracapstan tape guide, and a special tape pad lifter prevents the cassette's own pad from causing skewing and azimuth error. Both capstans have a slip-free matte finish to aid in maintaining ideal tape tension; it is driven directly by an extremely high precision motor controlled by an FG (frequency-generator) servo. The practical results of all this translate to smooth, constant tape speed, with wow-and-flutter of 0,027% (WTD RMS) or less. Head-base and brake movement is commanded by the solenoid-free Nakamichi Silent Mechanism for ease of use and quiet , quick response.

 


Discrete Three Head Design

Nakamichi's original system with three fully independent heads offers a wide gap on the Crystalloy REC head for clean signal transfer and a narrow gap on the Crystalloy PLAY head for best high-frequency resolution.

 

Low-Distortion Amplifier Circuitry

Directly coupling the recording and playback head with their respective amplifier sections has eliminated coupling capacitors and their ill effects and helped achieve a level of performance that is on a par with the finest home-use preamplifiers. In the same spirit, Nakamichi engineers used discrete circuity with high-quality parts, and even went as far as to completely shield the power supply and FL display sections from the audio circuits. Thanks to these measures, the Signal-to-Noise Ratio remains very high, and the Total Harmonic Distortion is never more than 0,005%.

 


Specifications

Heads:  Three; 1 x Erase; 1 x Record and 1 x Playback

Motors

Transport:  GS servo , brushless, slotless, coreless DD motor for capstan drive; DC motor for reel drive

Mechanism :  DC motor for cam operation

Tpe Speed:  4,8 cm/sec (1-7/8 ips ) ±0,5%

Wow and Flutter:

WTD Peak :  less than ±0,048%

WTD RMS :  less than 0,027%

Frequency Response:  20 Hz - 20,000 Hz ±3 dB

Signal-to-Noise Ratio : 

Dolby C NR :  better than 72 dB

Dolby B NR :  better than 66 dB

Total Harmonic Distortion:  less than 0,8% (ZX tape); 1,0% (SX, EX II tape)

Input Line :  50 mv/40 k Ω

Output

Line :  1,0 V (400 Hz, 0 dB, output control max. ? 2,2 k Ω

Headphone :  12 mW (400 Hz, 0 dB, output control max) 8 Ω 

Power Requirements:  100,120, 120/220-240, 220 or 240 V AC, 50/60 Hz

Power Consumption:  45 W max

Dimensions (W x H x D):  435 x 135 x 306 mm (17-1/8" x 5-5/16" x 12")

Weight:  8,5 kg (18 lb 12 oz)

Labels: , , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)