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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





Akai AA-1050

 The AA-1050 the top-of-the-line stereo receiver. Part of Akai's new 1000 series of Stereo and Quad components. We believe it's the finest line of receivers, for the money, in the business.
Like all our receivers, the AA-1050 was built with the same commitment to quality that made Akai tape equipment internationally famous.
We feel you won't find another receiver that comes on for the price with better sound or performance. Or better styling. Clean. Brushed aluminum. Beautiful. The strength of Akai. It's in our AA-1050. it's in our 1000 Series. With power output from 14 watts to 80 watts per channel, there's an Akai receiver for you. So you can make your own strong statement.
Specifications
Amplifier Section
Continuous Power Output:
50 watts per channel, mon.RMS, at 8 Ω from 20 - 20,000 Hz , with no more than 0,15% THD
2 x 60 watts into 8 Ω at 1 kHz with no more than 0,15% THD (both channel driven)
2 x 60 watts into 4 Ω at 1 kHz with no more than 0,15% THD (both channel driven)
Power Bandwidth (IHF):  7 Hz to 70,000 Hz  / 8 Ω (distortion within 0,15%)
Input Sensitivity:
Phono 1 & 2 :  3 mV/ 47 k Ω
Aux :  150 mV/100 k Ω
Tape 1 & 2 :  150 mV/100 k Ω
Signal-to-Noise Ratio (IHF);
Phono :  better than 80 dB
Aux :  better than 90 dB
Channel Separation (IHF): 
Phono :  better than 60 dB (at 1,000 Hz)
Equalizer:  RIAA ±1 dB (Phono)
Tone Control:
Bass :  ±10 dB at 100 Hz
Treble :  ±10 at 10 kHz
Loudness Control:  +10 dB at 100 Hz, +6 dB at 10 kHz (Volume control set at -30 dB position)
Filter:
High :  -10 dB at 10 kHz
Low :  -8 dB at 50 Hz
FM Tuner Section
Frequency Range:  88 MHz to 108 MHz
Sensitivity (IHF):  1,8 µV
Capture Ratio (IHF):  1,0 dB
Selectivity (IHF):  better than 100 dB at 98 MHz
Signal-to-Noise Ratio:  better than 75 dB
Image Rejection:  better than 95 dB at 98 MHz
IF Rejection:  better than 100 dB at 98 MHz
Spurious Rejection:  better than 90 dB at 98 MHz
Harmonic Distortion:
Monaural :  less than 0,15%
Stereo :  less tha 0,3%
FM Stereo Separation:  better than 40 dB (1,000 Hz)
FM Muting:  Variable (3 µV to 300 µV) / On-Off
Antenna Input:  300 Ω balanced; 75 Ω unbalanced
AM Tuner Section
Frequency Range:  535 kHz to 1605 kHz
Sensitivity (IHF):  180 µV/m (Bar antenna); 8 µV (external antenna)
Image Rejection:  better than 55 dB at 1,000 kHz
IF Rejection:  better than 45 dB at 1,000 kHz
Selectivity (IHF):  better than 30 dB at 1,000 kHz
AM Distortion:  less than 0,6%
Signal-to-Noise Ratio:  better than 50 dB
Semiconductors:  1 FET; 49 Transistors; 25 Diods; 3 Ics
Power Requirement:   120 V at 60 Hz or 220 V at 50 Hz
Dimensions (W x H x D):  480 x 155 x 390 mm (18,9" x 6,1" x 14,4")
Weight :  13,0 kg (28,6 lbs)

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