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





Luxman T-115

 PLL Frequency Synthesizer FM/AM Tuner

The sound and performance of Luxman tuners is legendary. And that legend continues with the model T-115, a highly innovative and advanced digital tuner.
The T-115 is a fully automatic tuner which utilizes Quartz PLL Frequency sysnthesizer technology for quick and accurate station selection. Instead of a conventional tuning knob, two tuning "keys" are used. The slightest touch of either key moves reception to the next higher or lower frequency. The selected station is then "locked" in position for drift-free reception.
 Manual tuning is possible by depressing the Manual Button. There's also a 12-station memory bank which provides capabilities for presetting 6 FM and 6 AM stations.
Unlike conventional memory systems, Luxman's design is immune from temperature and moisture conditions. Its stability is assured by modern integrated circuits that retrive the preset stations with accuracy.
The sound of the new T-115 is pure Luxman; clean and distortion-free. And its attractive faceplTE, WITH Digital Indicator, amkes the Lixman T-115 a beautiful addition to any stereo system.
Specifications
FM Section
Usable Sensitivity:  10,3 dBf (1,8 µV)
50 dB Quieting Sensitivity:  15,6 dBf (3,3 µV)
S/N Ratio at 65 dBf:  76 dB
Frequency Response:  30 Hz -15 kHz (-1 dB)
Distortion at 65 dBf (Mono / Stereo):
100 Hz : 0,12% / 0,3%
1 kHz : 0,15% / 0,3%
6 kHz : 0,2% / 0,4%
Capture Ratio at 65 dBf:  1,4 dB
Adjacent Channel Selectivity:  10 dB
Alternate Channel Selectivity:  75 dB (± 400 dB)
Spurious Response Ratio:  85 dB
IF Response Ratio:  85 dB
Image Response Ratio:  70 dB
AM Suppression Ratio:  56 dB
Stereo Separation (Mono / Stereo):
100 Hz : 56 dB /40 dB
1 kHz : -/ 45 dB
10 kHz : - / 39 dB
Subcarrier Product Ratio:  62 dB
SCA Rejection ratio:  60 dB
Muting Threshold:  10 µV - 300 mV (Variable)
Output Level:  800 mV
AM Section
Usable Sensitivity at 1 MHz, (400 Hz 30% mod.):  200 µV/m
Image Response Ratio at 1 MHz:  50 dB
IF Response Ratio at 1 MHz:  40 dB
S/N Ratio at 1 MHz (10 mV/m, 400 Hz 30% mod.):  50 dB
Distortion at 1 MHz, (10 mV/m, 400 Hz 30% mod.):  0,5%
General
Power Consumption:  10 W
Dimensions (W x D x H):  438 x 312 x 85 mm (17-¼" x 12-9/32" x 3-11/32")

Weight:  5 kg (11 lbs)

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