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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 2015

 Marantz Model 2015 AM/FM Stereo Receiver
The newest addition to the Marantz line of stereophonic receivers is the compact Model 2015. here's proof that marantz can make a comparably priced receiver without compromising traditional marantz styling and quality. The Model 2015 is a full 30 Watts continuous power into 8 Ω speakers, from 40 Hz to 20 kHz, with THD and Intermodulation less than 0,9%.
 This system combines all Marantz high-performance features into a smaller body, sized to fit any shelf or  table. Complete with tape, phono and auxiliary inputs as well as quick-connect output terminals fro main and remote speakers.  This precision-constructed unit also offers Gyro-Touch tuning for accurate reception; plus FM muting pushswitch, which eliminates inter-station noise when tuning. With built-in ferrite AM antenna and advanced soild-state circuitry throughout, the Model 2015 is the finest stereo receiver in this price range.

Specifications
AM/FM Tuner
FM Quieting Slope
RF Input for 30 dB Quieting:  2,8µV
Quieting at 5µV RF Input:  42 dB
Quieting ar 10µV RF Input:  49 dB
Quieting at 50µV RF Input:  55 dB
Total Harmonic Distortion
Mono : 0,6%
Stereo : 1,0%
Selectivity -Alternate Carrier:  48 dB
Capture Ratio:  3,0 dB
Stereo Separation at 1 kHz:  32 dB
Spurious rejection:  45 dB
Image Rejection:  35 dB
IF Rejection:  40 dB
AM Suppression:  30 dB
AM Sensitivity:  25µV
Pre-Amplifier Section
Phono Section
Dynamic Range (ratio of Input Overload Voltage to Equivalent Noise):  93 dB
Equivalent Noise Input:  2,2µV
Sensitivity and Impedance:  2,1 mV/35 k Ω
High level Input Sensitivity/Impedance:  150 mV/100 k Ω
Tone Controls:
Bass at 50 Hz : ±12 dB
Treble at 15 kHz : ±12 dB
Power Amplifier Section
Power Output (Continuous Power at 8 Ω at or below Rated Distortion, 20 Hz -20 kHz, both Channel Driven):  30 watts;  15 watts per channel
IM Distortion (at or below Rated Power, any combination of Two Frequencies):  0,9%
THD (at or below Rated Power, any Frequency from 20 Hz - 20 kHz):  0,9%
Frequency Response (High level Input from 20 Hz - 20 kHz):  1,0 dB
Power bandwidth (IHF, both channel driven):  20 Hz - 22 kHz
Input Sensitivity /Impedance:
Damping Factor:  40
Power Requirements:  110 - 120 V, 220 - 240 V, 50/60 Hz
Dimensions (W x H x D): 360 x 120 x 280 mm  [14¼" x 4¾" x 12"]
Weight:  8,2 kg  [23 lbs]

Optional:  Walnut cabinet WC - 10
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