4.3 CS128LF specifications
The CS128LF specifications are shown here:
Table 3: CS128LF specifications
Specification
Technical data
Notes
Frequency range
39 Hz - 255 Hz
-6 dB in half-space conditions, high
frequency determined by required
processing.
Usable LF response
32 Hz
-10 dB in half-space conditions
Coverage window
160 degrees horizontal, 100 degrees
vertical
Horizontal and vertical 6 dB relative to
on-axis response within rated
frequency range.
Rated impedance
4 ohms in parallel, 8 ohms in direct
drive
Sensitivity @ 1 W
101 dB
Measured with 12 dB crest pink noise
@ 2 Vrms in half-space conditions with
required processing.
Power handling
600 W @ 49 Vrms
12 dB crest pink noise for two hours
with required processing, based on
AES2-2012 standard, calculated power
based on rated impedance.
Power draw
420 W
Measured average power over five
seconds at the rated Vrms using 12 dB
crest pink-noise with required HPF
and LPF. This measured power draw
from the amplifier is useful for
estimating amplifier sizing in overall
system design.
Maximum voltage peak
138 Vpk
Measured Vpk over 100 hours using a
Hann shaped sine-wave burst at the
maximum excursion frequency of the
system. This data is useful for setting
peak stop limiters and amplifier
selection.
Maximum continuous SPL @ 1 meter
129 dB
Calculated from rated sensitivity and
power.
Measured acoustic peak SPL @ 1
meter
139 dB
Measured half space peak SPL over
five seconds at rated Vrms using 12 dB
crest pink noise with required
processing.
Dolby CS128LF weight
120 lb (54.4 kg)
Note: These specifications provide typical values and do not represent absolute limits.
4.4 Dolby Speaker System 128 and system components dimensions
The dimensions of the Dolby Speaker System 128 and its components are described here.
Dolby Speaker System 128 and components dimensions:
Dolby Speaker System 128 and system components specifications
Dolby Speaker System 128 Owner's Manual
32
8800293 Issue 2
27 October 2021
