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 RS 3559


Marantz Century series receivers reach new heights of flexibility and capability in home entertainment components. These multi-mode receivers can reproduce stereo music with subtle, delicate realism. With the transparency that Marantz is so well known for. Yet they can do far more.
All three Century receivers feature system remote control, four power amplifiers ( five on RS-3559), high-current amplifier design, oversized power transformers, illuminated alphanumeric display centers, station name display, preset scan, and are compatible with future standards for residential BUS remote control systems. And the RS-3359 features video sharpness control and video dubbing;
Superscope FX sound, which brings to the home music listening and theatre experiences a highly effective combination of technologies Dolby Surround Pro Logic with its highly effective logic steering, rear effects channels, and center dialogue channel. Digital delay to create a feeling of environmental spaciousness. Subwoofer capability to provide a solid foundation to the sound. And side-fill channels, for a heigh tened sense of realism.

The RS-3559 is equipped with Marantz unique Thermal tunnel, that keeps the receiver sounding open and transparent at all power levels. In traditional power amplifier designs, sound deteriorates when output transistors heat beyond their efficient thermal operating range. With standard technology heat  sinks cannot dissipate heat as fast as transitor temperatures rise under high power conditions. The thermal tunnel solves this problem by using assisted convection cooling under thermostatic control. At low power levels the thermal tunnel functions as a normal heat sink. As power dissipation rises, the thermal feedback system informs the master control circuitry, which operates a low-speed high-volume air circulator to accelerate cooling within the tunnel. As temperature rises, the circulation speed increases, keeping the output transistors in their ideal thermal range, for lowest distortion under all conditions.
The new Century series receivers Complete. Sophisticated. Flexible. Elegant transparent sound that's picture perfect.

RS-3559 Features:
Alphanumeric information center simplifies receiver operation, displaying key operating modes and information at all times.
CD Direct switch instantly bypasses signal processing circuitry for maximu signal purity with compact discs.
Preset scan lets you sample up to 30 stations, each for a few seconds.
Available in black or gold finish with rosewood side pnels.
Five independent power amplifiers, Superscope FX sound system featuring Dolby ProLogic
Patented thermal tunnel technology combines with industrial-grade oversized power transformer for high current capability.
Acoustic variable Space Enhanement digital delay system for concert hall realism.
64-key remote control for fingertip operation of major functions of receiver and other Century Collection components.
Can memorize up to 30 tuner preset stations in three multiscan banks.
Multi scan tuner library permits presets to be grouped, recalled, and scanned in three individual groups, so each member of the family can have individualized station memories.
Three video inputs, each with composite video plus stereo audio or RF input.

Electronically calibrated precision tone controls adjust bass, midrange, treble.

Specifications RS-3559
Rated Power Output (minimum contiuous watts/channel, from 2 Hz to 20 kHz, both channel driven into 8 Ω):  125 W
Total Harmonic Distortion (at rated power, from 20 Hz to 20 kHz):  0,02%
Intermodulation Distortion (at rated power):  0,02%
Rear Channel Output Power:  20 W
Center Channel Output Power:  20 W
Phono Preamplifier:
Frequency Response, RIAA Deviation, (from 20 Hz to 20 kHz):  ±0,5 dB
Signal-to-Noise Ratio:  75 dB (A-weighted)
Input Sensitivity (for rated power):  2,5 mV
High Level Inputs:
Frequency Response (from 20 Hz to 70 kHz):  +1 dB, -3 dB
Signal-to-Noise Ratio:  95 dB (A-weighted)
Input Sensitivity
For Rated Output Power, except CD:  150 mV
For Rated Output Power, for CD:  200 mV
Tone Controls at 100 Hz and 10 kHz:  ±8 dB
FM Section
Usable Sensitivity Mono:  11,2 dBf
50 dB Quieting [Mono/Stereo]:  12/38 dBf
Signal-to-Noise Ratio at 65 dBf [Mono/Stereo]:  76/70 dBf
Total Harmonic Distortion at 65 dBf, 1000 Hz [Mono/Stereo]:  0,15 / 0,3%
Stereo Separation, at 1000 Hz:  45 dB
Capture Ratio:  1,5 dB
Frequency Response  (from 30 Hz to 15 kHz):  1 dB - 3 dB
AM Section
Usable Sensitivty:  55 dB/m
Signal-to-Noise  Ratio:  45 dB
Image Rejection:  40 dB
Selectivity:  20 dB
Dimensions (W x H x D):  16-15/16" x 16-5/8" x 5-15/16"
Weight:  32,71 lbs

Marantz SR-3557

RS-3557 Features:
Alphanumeric information center simplifies receiver operation, displaying key operating modes and information at all times.
CD Direct switch instantly bypasses signal processing circuitry for maximu signal purity with compact discs.
Preset scan lets you sample up to 30 stations, each for a few seconds.
Available in black or gold finish with rosewood side pnels.
Four independent power amplifiers,
Superscope FX sound system featuring Dolby ProLogic
44-key remote control for fingertip operation of major functions of receiver and other Century Collection components.
Can memorize up to 30 tuner preset stations in three multiscan banks.
Multi scan tuner library permits presets to be grouped, recalled, and scanned in three individual groups, so each member of the family can have individualized station memories.
Two video inputs, each with composite video plus stereo audio or RF input.
Electronically calibrated precision tone controls adjust bass, midrange, treble.


Specifications RS-3557
Rated Power Output (minimum contiuous watts/channel, from 2 Hz to 20 kHz, both channel driven into 8 Ω):  100 W
Total Harmonic Distortion (at rated power, from 20 Hz to 20 kHz):  0,03%
Intermodulation Distortion (at rated power):  0,03%
Rear Channel Output Power:  20 W
Phono Preamplifier:
Frequency Response, RIAA Deviation, (from 20 Hz to 20 kHz):  ±0,5 dB
Signal-to-Noise Ratio:  75 dB (A-weighted)
Input Sensitivity (for rated power):  2,5 mV
High Level Inputs:
Frequency Response (from 20 Hz to 70 kHz):  +1 dB, -3 dB
Signal-to-Noise Ratio:  95 dB (A-weighted)
Input Sensitivity
For Rated Output Power, except CD:  150 mV
For Rated Output Power, for CD:  200 mV
Tone Controls at 100 Hz and 10 kHz:  ±8 dB
FM Section
Usable Sensitivity Mono:  11,2 dBf
50 dB Quieting [Mono/Stereo]:  12/38 dBf
Signal-to-Noise Ratio at 65 dBf [Mono/Stereo]:  76/70 dBf
Total Harmonic Distortion at 65 dBf, 1000 Hz [Mono/Stereo]:  0,15 / 0,3%
Stereo Separation, at 1000 Hz:  45 dB
Capture Ratio:  1,5 dB
Frequency Response  (from 30 Hz to 15 kHz):  1 dB - 3 dB
AM Section
Usable Sensitivty:  55 dB/m
Signal-to-Noise  Ratio:  45 dB
Image Rejection:  40 dB
Selectivity:  20 dB
Dimensions (W x H x D):  16-15/16" x 16-5/8" x 5-15/16"
Weight:  32,21 lbs

Marantz SR-3555

 Marantz Century eries Receivers reach new heights of flexibility and capability in home entertainment components.

RS-3555 Features:
Alphanumeric information center simplifies receiver operation, displaying key operating modes and information at all times.
CD Direct switch instantly bypasses signal processing circuitry for maximu signal purity with compact discs.
Preset scan lets you sample up to 30 stations, each for a few seconds.
Available in black or gold finish with rosewood side pnels.
Four independent power amplifiers,
Active surround sound system.
36-key remote control for fingertip operation of major functions of receiver and other Century Collection components.
One video inputs, each with composite video plus stereo audio or RF input.

Electronically calibrated precision tone controls adjust bass, midrange, treble.

Specifications RS-3555
Rated Power Output (minimum contiuous watts/channel, from 2 Hz to 20 kHz, both channel driven into 8 Ω):  50 W
Total Harmonic Distortion (at rated power, from 20 Hz to 20 kHz):  0,04%
Intermodulation Distortion (at rated power):  0,04%
Rear Channel Output Power:  20 W
Phono Preamplifier:
Frequency Response, RIAA Deviation, (from 20 Hz to 20 kHz):  ±0,5 dB
Signal-to-Noise Ratio:  75 dB (A-weighted)
Input Sensitivity (for rated power):  2,5 mV
High Level Inputs:
Frequency Response (from 20 Hz to 70 kHz):  +1 dB, -3 dB
Signal-to-Noise Ratio:  95 dB (A-weighted)
Input Sensitivity
For Rated Output Power, except CD:  150 mV
For Rated Output Power, for CD:  200 mV
Tone Controls at 100 Hz and 10 kHz:  ±8 dB
FM Section
Usable Sensitivity Mono:  11,2 dBf
50 dB Quieting [Mono/Stereo]:  12/38 dBf
Signal-to-Noise Ratio at 65 dBf [Mono/Stereo]:  76/70 dBf
Total Harmonic Distortion at 65 dBf, 1000 Hz [Mono/Stereo]:  0,15 / 0,3%
Stereo Separation, at 1000 Hz:  45 dB
Capture Ratio:  1,5 dB
Frequency Response  (from 30 Hz to 15 kHz):  1 dB - 3 dB
AM Section
Usable Sensitivty:  55 dB/m
Signal-to-Noise  Ratio:  45 dB
Image Rejection:  40 dB
Selectivity:  20 dB
Dimensions (W x H x D):  16-15/16" x 16-5/8" x 5-15/16"
Weight:  28,71 lbs


Technics SU-800

SU-800 Stereo Integrated Amplifier
Features:
New Class A circuitry for clear, undistorted sound;
40 W x 2 RMS (20 Hz - 20 kHz at 8 Ω);
Light-touch input selectors include phono,tuner, CD/Aux and tape 1 and tape 2;
Quiet EQ circuitry;
Two tape monitors with editing capability
Main and/or remote speaker selection
Heavy-duty aluminium front panel;

Only black finish available
Specifications:
Contiuous Power Output per Channel:
40 W :  20 Hz - 20 kHz at 8 Ω, (Total Harmonic Distortion 0,06%)
60 W :  1khz DIN at 8 Ω
Input Sensitivity/Impedance:
Phono MM :  2,5 mV/47 k Ω
Tuner, CD, Aux, Tape :  150 mV/22 k Ω
Frequency Response:
Phono :  RIAA ±0,8 dB
Tuner, CD, Aux, Tape :  5 Hz -90 kHz (-3 dB)
Signal-to-Noise Ratio:
Phono :  71 dB (72 dB IHF-A)
Tuner, CD, Aux, Tape :  90 dB (98 dB IHF-A)
Power Supply/ Consumption:  240 V 50/60 Hz ; 340 W
Dimensions (W x H x D):  430 97 x 240 mm
Weight:  5,8 kg