Who is ADS?
Analog and Digital
Systems is an expanding youg high technology Amarican company with roots in
European craftsmanship and esthetic sensitivity. We are dedicaated to
innovation and leadership but not technological novelty for its own sake. At
ADS advanced technology is always at the service of musical enjoyment, and it
is always firmly grounded in the sciences of physics, chemistry and acoustics.
Over the years, ADS products have consistently received high critical acclaim
and won conveted design and engineering awards. Having made headlines in 1975
with the now-famous ADS 2001 System,, the world's first high-fidelity
bi-amplied miniatuure speaker system. ADS technology today extends to a
complete line of home and professional speaker systems, bi-amplification and
modular systems, ambience synthesis (digital delay) systems and automotive
audio products. ADS 2-way bookshelf speaker further exemplify ADS engineering
excellence in pursuit of better music reproduction.
L 420
Specifications
Frequency
Response: 48 - 20,000 Hz ±3 dB (38 -
22,000 Hz ±5 dB)
Impedance: 6 Ω (nominal), 4 Ω (minimum)
Efficiency: 92 dB SPL with 2,8 V RMS ( 1 watt) pink noise
input measured at 1 m in typical listening room (2000 ft²)
Driver Complement:
HF : 1" soft dome tweeter
LF : 7" Stifflite woofer
Crossover: 1,500 Hz
12 dB/octave
Power Rating: 50 watts (nominal), 100 watts (max peak program)
Recommended
Amplifier Power: 15 watts (minimum), 100
watts (maximum)
Cabinet: Selected natural walnut over
extra-high-density particle board
Baffle: piano black finish with diffraction corrected
flush driver mounting
Grille: Acoustically transparent removable frameless
grill in bronze finish.
Dimensions (Hx W x
D): 17-1/2" x 11-1/4" x
7"
Weight: 7 kg (16 lbs)
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