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 230A

 AM/FM Stereo  Solid State Receiver
The harman-Kardon engineering team has completed a high performance stereo receiver which exceeds every specification ever established for medium priced stereo components. The new Model 230A combnes the finest stereophonic sound with the industry's most distinctive styling to give high fidelity a new standard of excellence and performance at a price of less than $160.00.
The 230A adheres to the same philosophy of design that makes all Harman-Kardon receivers sound more transparent and lifelike. Frequency response, which is usually limited to the narrow range of 20-20,000 Hz in most receivers, is extended well beyond those parameters to give the sound you hear greater clarity and definition. All of the subtle nuances and shadings of music emerge with exciting realism.

Tuber sensitivity of the 230A is extraordinary. It pulls in distant stations without noise or fanding. AM and FM performance neve deteriorates with age bccause the receiver produces no heat to change the value of component parts.
And when you tune the 230A to a station, it locks into place and never drifts.
No deterioration with age becasue ther's no damaging heat. You can expect the same high quality performance from 230A even afters years of extensive use.
A special electronic circuit automatically swiches FM tuner to stereo, the moment a stereo broadcastis received. Special light indicates FM stereo reception. Receiver switches to standard FM automatically when stereo broadcast  ends.
High speaker damping controls excessive speaker excursions to avoid distortion during sharp bursts of sound. This results in clean, tight bass.
Contour for low-volume listening maintains full bass response even at levels where bass normally falls off.
Precise D'Arsonval movement tuning mater shows when you have tuned to strongest and clearest signal on AM and FM
Stereo in two rooms. Simple front panel switching eliminates the complexity and expense of external switching devices. Headphone receptacle permits personal listenng.
Newly designed dial illumination showsAM or FM dial scale independently for maximum visibility. Entire top section of receiver turns black when receiver is switched to phono mode of operation.
Illuminatedpushbuuton ON/OFF switch glows in red to indicate that receiver is on.continuously variable balance control lets you adjust stereo balance to suit acoustic requirements of your room. Permits you to sit far to one side of your room and still maintain perfect stero.
Tape Monitor Switch for instant comparison of recorded material and original program.
Extended frequency response beyond the normal hearing range gives extra realism to the sounds you can hear. 230A sound is cleaner, more transparent, more sharply defined. You can actually feel the difference.
Separate illuminated power On/Off switch permits you to turn receiver on and off without upsetting other controls.
Heavy, counterweighted flywheel makes tuningsmooth as silk
Two year warranty on parts and labor.
Power Output
17 watts into 8 Ω
20 watts into 4 Ω
Total Harmonic Distortion:  less than 1%
Frequency Response 20 Hz to 20,000 Hz
Power Bandwidth:  15 Hz to 70,000 Hz (at less than 0.3% THD into 8 Ω, both channels driven simultaneously at 8.5 watts per channel)
Frequency Bandwidth7 Hz to beyond 130 kHz
Frequency Response 15 Hz to 70,000 Hz ±1.5 dB
FM Tuning Range: 
AM Tuning Range: 
Power  Supply:  AC,  110 - 240 Volt
Dimensions:  390 x 100 x 190 mm (15.4" x 3.9" x 7.5")

Weight:  6,5 (14 lbs 15,1 onz)

Nessun commento:

Posta un commento