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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





JBL L20T loudspeakers

The JBL philosophy goes back to 1929, when James B. Lansing began building small loudspeakers for radios and phonographs. A new challenge soon interested him; Loudspeakers for movie theatres. "Talkies" had come of age and there was a need for loudspeakers that could fill the large movie houses with high quality sound. Lansing perfected techniques for milling flat wire and winding it on edge for superior voice coils. He also made vital contributions to compression driver technology, and many of this designs were forerunners of today's production models.

But even more important than any single advancement in technology, James B. Lansing established an approach that guides JBL to this day; Uncompromised engineering and manufacturing to deliver the best loudspeaker systems possible.

 

 

The L20T compact monitor, a two-way bookshelf system with a 6-1/2" low frequency transducer, offers extended frequency response, original dynamic range, and the reproduction of the full sound stage in the home. The L20T features JBL's acclaimed 1-inch titanium high frequency transducer (O35Ti) and polypropylene mid/low frequency transducer to deliver sound as it was intended to be heard. The sensitivity is 87 dB at 1 Watt/1 meter, and has continuous power rating of 100 Watts and dynamic power rating of 4-- Watts (peak IEC shaped noise). The L20T performance previously unavailable in such a small package.

 

 


Specifications

Type:  2-Way System

Drivers

LF :  6-1/2" Filled Polypropylene Low Frequency Transducer

HF :  1" High Frequency Transducer with pure Titanium Diaphragm

Sensitivity:  87 dB SPL 2,83 Volts at 1 meter

Frequency Response:  -6 dB at 45 Hz and 27 kHz, =2,5 dB from 50 Hz to 20 kHz

Crossover:  3 kHz

Power Handling:  100 Watts continuous, 400 Watta Peak IEC Shaped Noise

Dimensions (W x H x D):  241 x 378 x 235 mm (9-1/2" x 14-7/8" x 9-1/4")

Weight Shipping:  17,3 kg (38 lbs) pair


 

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