The ADS L730 3-Way
Loudspeaker System
Although similar to
its predecessor, the much acclaimed ADS L630, the L730 merits a new model
designation because of major component changes and performance improvement. The
all-new L730 is, arguably, one of the most significant advances in bookshelf
speaker design in recent history. It produces surprisingly deep, tight bass for
a speaker of it size thanks to a new 10" ADS Stifflite woofer. A new
midrange driver delivers uncanny accuracy in reproducing critical human voice.
It is unexcelled in open, clean, and airy reproduction of highs, attributes
associated with the state-of-the-art. ADS 3/4-inch soft-dome tweeter. A direct
outgrowth of ADS' research and development of monitor spaekers for digital
recording sessions, the l730 naturally provides excellent stereo imaging and
unusually wide dynamic range.
Features
New 10-inch ADS
Stifflite woofer has tapered "honeycomb" cone construction for high
internal damping, optimum mass/stiffness characteristics, and low total moving
mass; bass is deep , yet tight and highly controlled; extra-long-excursion
design and high-temperature voice coil ensures superb linearity, wide dynamic range, and high power-handling.
New 1½ inch ADS acoustic suspension soft-dome
midrange driver takes advantage of most recent materials technology and
precision manufacturing techniques; driver has unprecedented low distortion,
low coloration and wide dynamic range.
The proven ADS
3/4-inch acoustic suspension soft-dome tweeter delivers unmatched
high-frequency performance; smoothness, extension, and dispersion are second to
none; very high force/mass ratio ensures excellent damping and transient
response, and contributes to efficiency and low distortion; ADS' unique
single-layer, high-thermal-conductivity metal voice coil ensures high
power-handling capability for wide dynamic range.
Precision crossover
network seamlessly matches driver outputs with minimal distortion and power
loss; highest guality network components ensure stable, reliable performance
over years of use.
Choice of oak or
walnut cabinet with radiused edges and soild oak/walnut edge reinforcements.
New acoustically
transparent grill lends distinctive appearance while eliminating grill-frame
structure for reduced difraction and improved dispersion.
New user-interface
panel features heavy-duty binding-post connectors and readily accessible
tweeter fuse with built-in spare.
Specifications L730
Frequency
Response: 30 - 23,000 Hz, ±3 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 ft³)
Driver
Complement:
One
acoustic suspension soft-dome tweeter, ¾" diameter, with single-layer, high-temperature metal voice coil;
magnetic flux density - 1,8 Teslas (18,000 Gauss); magnetic flux - 325,000
nanoWebers.
One
acoustic suspension soft-dome midrange driver, 1½" diameter, with single-layer, high-temperature metal voice coil;
magnetic flux density - 1,5 Teslas (15,000 Gauss); magnetic flux - 1,000,000
nanWebers.
One
long-excursion, high-compliance woofers, 10" diameter, with 1½" high-temperature voice coils and
tapered Stifflite cone; magnetic flux density - 0,9 Teslas (9,000 Gauss);
magnetic flux - 850,00 nanoWebers.
Crossover: 12 dB/oct at 550 Hz and 4,000 Hz
Power Rating: 100 Watts (nominal), 175 Watts (max. Peak program)
Recommended
Amplifier Power: 20 Watts minimum - 200
Watts maximum
Dimensions (H x W x D): 25½" x 14⅛" x 11¾"
Weight: Approx. 42 lbs (19 kg)
Cabinet: Select natural walnut over extra-high-density
particle board, solid oak or walnut edge inserts.
Baffle: Piano black finish with diffraction-corrected
flush driver mounting.
Grill: Acoustically transparent removable frameless
grill in complementary finish.
Suggested Retail
Price : $ 365.00 each
Availability:
Summer, 1980
Optional Accessory:
ADS F800 black metal base, $33,00 each
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