4.1 Dolby DSR1090 specifications
Specifications are provided for the Dolby DSR1090.
Table 1: Dolby DSR1090 specifications
Specification
Technical data
Notes
Frequency range
60 Hz to 20 kHz
+3 dB/-6 dB in half-space conditions
using required processing.
Usable LF response
50 Hz
-10 dB in half space conditions.
Coverage window
90 degrees horizontal, 60 degrees
vertical
Rated impedance
8 ohms
Whole space sensitivity @ 1 W
95 dB
Measured with 12 dB crest pink noise
at 2.83 V
rms
in whole space conditions
with an 80 Hz high pass filter (HPF)
and 48 dB low pass filter (LPF) at the
rated system high frequency. (80 Hz is
a typical crossover point into Dolby
Atmos surround bass management).
Half space sensitivity @ 1 W
97 dB
Measured with 12 dB crest pink noise
at 2.83 V
rms
in half space conditions
with required high pass filter (HPF)
and 48 dB low pass filter (LPF) at the
rated system frequency range.
Power handling
250 W @ 40 V
rms
12 dB crest pink noise for two hours
with required HPF and 48 dB low pass
filter (LPF) at the rated system
frequency range, calculated power
based on minimum impedance.
Power draw
160 W
Measured average power over five
seconds at the rated V
rms
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
142 Vpk
Vpk over 100 hours using stepped
Hann shaped sine wave bursts at
1/3rd octave spacing within the rated
passband of the system. This data is
useful for setting peak stop limiters
and amplifier selection.
Whole space maximum continuous
SPL @1 meter
119 dB
Calculated from rated sensitivity and
power.
Half space maximum continuous SPL
@ 1 meter
121 dB
Calculated from rated sensitivity and
power.
Whole space measured acoustic peak
SPL @ 1 meter
129 dB
Measured peak SPL over five seconds
at rated
Vrms
using 12 dB crest pink
noise with required HPF.
Dolby DSR1090 specifications
Dolby DSR1090 Owner's Manual
22
Issue 1 Part number: 8800304
16 October 2022
