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





Marantz Model 10B

Without question the Model 10B is the most advanced instrument of its kind today. This is the Tuner that was rated by Hi/Fi Stereo Review (December, 1965 issue) as " ... we have neverseen a tuner to compare with it ... so outstanding that it is literally in a class by itself." Marantz engineers have bypassed the inherent limitations of conventional circuits through the employment of bold new concepts and highly sophisticated electronic techniques. The performance of every circuit stage shows the dramatic order of improvement which can be achieved through creative inventiveness.

Now, with the introduction of the Marantz 10B, all the requirements for real high fidelity reception have been met. FM reception with the Model 10B, is comparable in every degree with the clarity and fidelity normally found only in stereo tapes and discs.

Performance properties of the 10B in regard to quieting, stereo separation and distortion are without precedent. Its combination of high sensitivity, ultra-sharp selectivity, fast quieting action and reduced susceptibility to multipath effects, ensures exceptional results in fringe area. While the advanced features and performance specifications appeal to the primarily technically inclined, the Model10B's simplicity of operation attracts the listener who is simply a lover of good music. In whatever case, the extent of the new high standard established by this fine instrument is recognized by all of critical judgement.

RF Section

The precision tuning capacitor has a "Linear frequency" characteristic so that station calibrations appear evenly and accurately spaced along a full 10" tuning dial. RF stages are balanced-tuned throughout. An important feature is the radar-type, balanced-bridge diode mixer.

IF Section

The unique Marantz IF circuit is based on the development of an "18-pole" phase-linear. The ideal characteristic of the filter passband permit performance improvements which are unobtainable with conventional coupled circuits. Phase-linearity in the 200 kc passband eliminates a major source of high-frequency distortion and loss of separation 108 dB/octave cutoff slopes make the Model 10B the most selective FM tuner in existence. The strongest signals have no deteriorating effect on its ideal passband characteristics. IF alignment is permanent, being unaffected by tube changes or normal aging.

Limiters and Discriminator

There are 9 limiters in the Model 10B using matched pairs of silicon planar diodes. Each IF stage is self-limiting, preventing overload on stronge signals, and eliminating the usual need for AGC circuits. Quieting on weak signals is close to the theoretical threshold, with ultimate quieting well in excess of 70 dB. The discriminator circuit is extremely linear, ensuring low distortion through the subchannel range.

Multiplex

The highly sophisticated Marantz circuit permits the inclusion of phase correction to maintain proper phase-amplitude relationships. This allows the use of an extremely effective SCA rejection filter witout the usual loss of separation at high frequencies. Separation is well in excess of 30 dB to 15 kc. The output filter circuit provides very sharp attenuation of residual sub-channel components above the audio range, eliminating noise and interference from SCA. Precision-gapped ferrite cup-cores or precision toroidal coils are used for all filters. Automatic stereo switching and inter-channel muting are both accomplished by means of ingenious electronically triggered photo-electric circuits.

Multipath- Tuning Indicator

In March 1962, Marantz introduced the concept of using an oscilloscope tube as a multipath and tuning indicator in the early prototypes of the Model 10. As each station is tuned, its correct center position on the passband is clearly displayed. Simultaneously, the presence of multipath becomes visible, making it quite easy to readjust the antenna for best results. A panel switch permits test display of the left and right FM channels, or external signals from tape recorders, discs, etc.

SPECIFICATIONS

I.H.F. Sensitivity: 2 uv or better

Quieting Slope: 40 dB at 2 uv; 55 dB at 3,5 uv; 70 dB at 25 uv

6 IF Stages: Each with 3-pole phase-linear band-pass filter, IF bandwidth, 200 kc. Cutoff slopes 108 dB/octave

Selectivity Curve: Adjacent carrier - 42 dB; Alternate carrier - 150 dB

9 Dynamic Symmetrical-Aperture Limiters: Full limiting on noise

Ultra-Linear Discriminator: For low distortion through sub-channel range

Balanced-Bridge Diode Mixer

Automatic Stere Switching: Photoelectronic, with indicator light and threshold adjustment.

Interstation Muting: Photoelectronic, with defeat switch and threshold adjustment

Total Spurious Rejection: Better than 100 dB, Includes images, cross modulation, etc

Volume Sensitivity: 10 dB maximum (reached at 0,8 uv)

Harmonic Distortion: less than 0,2% at 15 kc after deemphasis, and less than 1% at detector

AM Rejection: At least 70 dB at 89% modulation with all signal levels

Separation: Approx. 45 dB average throughout the range. Better than 30 dB at 15 kc

Built-In Multipath/Tuning Indicator: 3" oscilloscope tube

Tuning Gang: Military type, silver plated, four balanced cections, ceramics spacers. Precision calibrated at 10 points.

Balanced 300 ohm Input

Dimensions:

Front panel 15 x 5¾ inches; Chassis 14 wide x 15 deep inches.

Panel Finish: Gold anodizedto match Model7

Shipping Weight: 38lbs

Nessun commento:

Posta un commento