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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





Heco Precision 400 loudspeaker


Heco precision Series loudspeakers feature a patented woofer duet claimed to ensure accurae bass response. For prcise midrange and high frequency sound, both soft dome midrange drivers and tweeters utilize a special polymer material made exclusively for Heco.
To prevent the effects of spurious vibrations, the acoustic suspension cabinets are built of particle board that is "five times more dense than usually used for speaker cabinets".
All models have two environmental contour controls, a nominal DC impedance of 8 ohms, and an efficiency control rated at 91 dB/SPL at 1 m/1W.

Specifications
Type:  3-way acoustic suspension
Power Handling:  120 - 200 watts
Frequency Response:  25 - 25,000 Hz
Impedance Nominal :  4 ohms
Crossover:  600 Hz / 3,000 Hz
Drivers:
LF :  300 mm(12 inch) Woofer
MF :  50 mm (2 inch) Midrange
HF :  19 mm (3/4 inch) Tweeter
Volume:  66,0 litre
Dimensions (H x W x D):  650 x 375 x 270 mm

Weight:  19,0 kg
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