4.1 Dolby Speaker System 128 specifications
The specifications for the Dolby Speaker System 128 are shown here:
Table 1: Dolby Speaker System 128 specifications
Specification
Technical data
Notes
Frequency range
39 Hz - 20 kHz
+3 dB/-6 dB in half-space conditions
using required processing.
Usable LF response
32 Hz
-10 dB in half space conditions.
Coverage window (asymmetrical)
60 degrees top horizontal, 120
degrees bottom horizontal, 60
degrees vertical
Horizontal top and vertical -6 dB
averaged to on-axis response.
Horizontal bottom -9 dB averaged to
on-axis response for near-field
proximity compensation.
CS128MH rated impedance
8 ohms
CS128LF rated impedance
4 ohms in parallel, 8 ohms
independent drive
CS128MH sensitivity @ 1 W
101 dB
Measured with 12 dB crest pink noise
@ 2.83Vrms in whole-space conditions
with required high-pass filter (HPF)
and 48 dB bandwidth (BW) low-pass
filter (LPF) @ the rated system
frequency range.
CS128LF sensitivity @ 1 W
101 dB
Measured with 12 dB crest pink noise
@ 2 Vrms in half-space conditions with
required processing.
C128MH power handling
300 W @ 49Vrms
12 dB crest pink noise for two hours
with required HPF and 48 dB
bandwidth (BW) low-pass filter (LPF)
@ the rated system frequency range,
calculated power based on rated
impedance.
C128LF power handling
600 W @ 49 Vrms
12 dB crest pink noise for two hours
with required HPF and LPF based on
AES2-2012 standard; calculated power
based on rated impedance.
CS128MH maximum continuous SPL
@1 meter
126 dB
Calculated from rated sensitivity and
power.
C128LF maximum continuous SPL @ 1
meter
129 dB
Calculated from rated sensitivity and
power.
Dolby Speaker System 128 maximum
summed continuous SPL @ 1 meter
131 dB
Total SPL is a non-coherent
summation.
Dolby Speaker System 128 weight
174 lb. (79 kg)
Dolby Speaker System 128 and system components specifications
Dolby Speaker System 128 Owner's Manual
30
8800293 Issue 2
27 October 2021
