DTS645-8AF SPECIFICATIONS (unprocessed)
System Type:
Vented hass horn type, two-way full-range loudspeaker system.
Pressure Sensitivity:
HI.:
L.F.:
(.see note 1)
109 dB SPL (1 watt, 1 kHz to 10 kHz, re: 20 uPa).
104 dB SPL (1 watt, 125 Hz to 1 kHz, re: 20 uPa).
Frequency Response:
Useahle:
(see note 2)
50 Hz - 18 kHz.
Power Handling:
H.F. (1 kH7 to in kHz):
L.F. (.SO Hz to 4 kl Iz):
(see note 3)
300 watts, peak power.
150 walls, continuous program.
75 walls, AES method.
800 watts, peak power.
400 walls, continuous program.
200 walls, AES method.
Maximum Output:
HI.:
LI.:
(see note 4)
134 dB SPL, peak power.
131 dB SPL, continuous program.
128 dB SPL, AES method.
133 dB SPL, peak power.
130 dB SPL, continuous program.
127 dB SPL, AES method.
Crossover Frequency: 1 kHz recommended.
Impedance:
HI.:
LI.:
8.0 ohms minimum.
7.0 ohms minimum.
8.0 ohms nominal.
Components:
16 inch, high-efficiency. Duplex® loudspeaker.
Input Terminals: Large screw terminals, Speakon ' connector.
Flying System: L-track accepts Aerotiuip 32102 fittings.
Accessory Hardware: Grid Strap Part # C^S-IA, 10" Linkstrap Part # LS-IA, 12" Linkstrap
Part # LS-2A.
Suspension Data: To insure a proper safety factor, Altec Lansing recommends the
units not be stacked over four (4) high.
Recone Kit:
R9864-8ALE.
Diaphragm Replacement: 25884.
Replacement Crille: Model RG039105.
Enclosure: Vented bass horn type, built of 14-ply birch plywood with
appropriate bracing. Lined with glass wool.
Finish: Black texture paint with black metal grille.
Dimensions:
Fleight:
Width:
Depth:
24.53 inches (62.31 centimeters).
26.67 inches (67.74 centimeters).
25.0 inches (63.5 centimeters).
Weight:
Net:
Shipping:
138.0 (rounds (62.60 kilograms).
178.0 (rounds (80.74 kilograms).
MEASUREMENT
NOTES
1. Pink noise signol, one Watt colcu-
loted using EyZmin, 3.16 meter-
measurement distance referred to
one meter.
2. On-axis, one Wott colcuinted using
EVZmin, 3.16 meter-measure
ment distance referred to one
meter, low frequencies corrected
for anechoic chamber error.
3. This system rating patterned after
the AES method for individual
driver, where the test signal is
pink noise with o 6 dB crest factor
over the bandwidth of the system,
with power colculoted using the
EyZmin, for two hours.
4. This measurement made under
the same conditions as Pressure
Sensitivity, but at rated power,
and takes into occount any power
compression effects due to non-
linearities in the system.
Distortion components invalid
above 10 kHz. The distortion at
any given frequency may be
found by graphically taking the
difference between the fundamen
tal and harmonic, and adding the
number of Decibels which the hor-
monic has been raised on the
groph and apply the formula:
% distortion = 100 X
(2 pages)
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