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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





Harman/Kardon A-401 amplifier

The budget minded may initially be attracted by price but they'll be surprised by the sound quality. The A-401 may be combined with modest loudspeakers or handle even the most formidable. It is a pleasant paradox, straightforward and unexpansive, yet suitable for demanding music systems. It's no exaggeration to say that the A-401 would be the system of choice for any Citation owner who requires a second music sound system for the bedroom, the country cottage or the dormitory.

Features included are those that are most consistently required in music systems, tape monitoring, multiple speaker systems, contour, and uniquely, connections for two pairs of stereo headphones.

For less than 20 watts- 20 Hz to 20 kHz; Rise Time- less than 5 microseconds; Square Wave Tilt- less than 5 degrees at 20 ha. The knowledgeable audiophile will recognize these achievements are , on a more modest scale, shared only with the most expensive separate power amplifiers. The A-401 is a serious and competent amplifier.

 


Specifications:

Power Output:  20 watts min. RMS per channel both channels driven into 8 Ω  from 20-20,000 Hz, with less than 0,5% T.H.D.

Power bandwidth:  from 10 Hz to 35 kHz at less than 0,5% T.H.D. into 8 Ω , both channels driven simultaneously at 10 watts per channel

Frequency Response:  from 10 Hz to 80 kHz at less than 0,5% T.H.D. into 8 Ω , both channels driven simultaneously at 1 watt per channel

Square Wave Rise Time:  less than 3 microseconds

Square Wave Tilt:  less than 5 degrees at 20 Hz

Total Harmonic Distortion:  less than 0,5% from 250 milliwatts to 20 watts RMS, both channels driven simultaneously into 8 Ω  from 20 Hz - 20 kHz

Intermodulation Distortion:  less than 0,12% rated output

System Hum and Noise:  better than 65 dB below rated output unweighted

Damping Factor:  30

Dimensions (W x H x D):  300 x 275 x 134 mm (13" x 10-3/4" x5-1/4")

Weight:  6,2 kg (13,5 lbs)


 

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