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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-8000 receiver

Solid State AM FM Multiplex Stereo Tuner Amplifier

Model AA-8000, all silicon Transistorized 120 W music power AM/FM Multiplex stereo tuner amplifier provides extra-sensitivity.

Enjoy the strength and delicacy of every pitch of sound with this stereo performer tied into your tape recorder or tape deck. Especially Akai model X-360 or X-360D.

Model AA-8000 can remotely control forward, Stop, Reverse, rewind and fast forward operations when it is connected to the X-360 or X-360D.

 


Specifications

FM Tuner Section

Frequency Range:  88 - 105 MHz (FM);

Sensitivity:  2,0 µV (98 MHz, 100% mod. 3% dis. At 300 Ω )

Signal-to-Noise Ratio :  better than 50 dB

Total Harmonic Distortion less than 0,8% (400 Hz, 100% mod.)

Image Frequency Rejection:  better than 60 dB (98 MHz)

FM Multi-Separation:  better than 30 dB (400 Hz)

Antenna:  300 Ω , 75 Ω  (with external antenna)

AM Tuner Section

Frequency Range:  530 - 1605 kHz (AM)

Sensitivity:  20 µV (1000 kHz, 30% mod. 10% dis. With external antenna)

Signal-to-Noise Ratio :  better than 40 dB

Total Harmonic Distortion :  less than 3%

Image Frequency Rejection:  better than 60 dB (1000 kHz)

Antenna:  Ferrite bar antenna (with external terminal)

Power Amplifier Section

Power Output: 

Music Power :  120 W (60/60 W) at 8 Ω

Rated Power :  90 W (45/45 W) at 8 Ω

Frequency Response:

Phono :  RIAA ±1,5 dB

Tape, AUX :  20 to 50,000 Hz -3 dB

Signal-to-Noise Ratio

Phono :  better than 60 dB

Tape, AUX :  better than 70 dB

Total Harmonic Distortion :  less than 0,3% (45 W/8 Ω /1 kHz)

Intermodulation Distortion:  0,3% (45 W/8 Ω / 1khz)

Input Sensitivity/Impedance

Phono :  3,0 mV/50 k Ω

Tape,AUX :  150 mV/100 k Ω

Output Terminals:

Rec Out :  -15 ±2 dB (140 mV)

DIN Out :  -30 ±2 dB (24 mV)

Speakjer Out :  A; B

Tone Control:

Bass :  ±10 dB at 100 Hz

Treble :  ±-10 dB at 10 kHz

Loudness Control:  +6 dB at 100 Hz , +6 dB at 10 kHz

Semiconductors:  1 FET, 51 Silicon Transistor, 14 Silicon Diode, 21 Germanium Diode, 1 V.C. diode, 2 Thermistor

Power Source:  100 V/ 110V/ 120 V/ 220 V/ 240 V, 50/60 Hz

Power Consumption:  200 W (maximum), 30 W (no signal)

Dimensions (W x H x D):  460 x 140 x 355 mm (18-1/8" x 5-1/2" x 14")

Weight:  15 kg (33 lbs)

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