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Tables
8.1 Loudspeaker Sensitivity
Input
dB SPL
Power Link
88.0
XLR, RCA
88.0
XLR, RCA
92.2
XLR, RCA
98.2
Table 8.1: Unweighted Sound Pressure Level (SPL) of the BeoLab
90 at 1 m in a free field (200 Hz – 2 kHz). Input signal strength:
125 mV rms. Volume Step: 90. All other parameters set to Fac-
tory Defaults. Note that the input signal strength on the XLR
input is measured between pins 2 and 3.
Input
USB Audio, S/PDIF, Optical
Wireless Power Link
WiSA
Table 8.2: Unweighted Sound Pressure Level (SPL) of the Beo-
Lab 90 at 1 m in a free field (200 Hz – 2 kHz). Input signal: -30.0
dB FS. Volume Step: 90. All other parameters set to Factory
Defaults.
8.2 Volume Control
Volume Step
Output
90
92.3 dB SPL
89
91.3 dB SPL
88
90.3 dB SPL
.
.
51
53.3 dB SPL
50
52.3 dB SPL
49
51.3 dB SPL
.
.
2
4.3 dB SPL
1
3.3 dB SPL
0
-
dB SPL
Table 8.3: Unweighted Sound Pressure Level (SPL) of the audio
signal from a BeoLab 90 at 1 m in a free field (200 Hz – 2 kHz).
Input signal: -30.0 dB FS. Note that these values consider only
the output level of the audio signal and assume that thermal
protection has not been engaged.
"Max Input" Level Setting
6.5 V rms (Fixed)
6.5 V rms
4.0 V rms
2.0 V rms
Output
92.3 dB SPL
92.3 dB SPL
TBD
8.3 Parametric Equaliser
Type
Low-shelving
Peaking (LF)
Peaking (MF)
Peaking (HF)
High-shelving
Table 8.4: Frequency ranges of Parametric EQ filters. The filter
frequencies are ISO 1/6-octave spacing.
Band
Frequency (Hz)
Ultrasonic
22.4 kHz to 40.0 kHz
Treble
4 kHz to 20 kHz
Midrange
125 Hz to 3.55k
Bass
25 Hz to 112 Hz
Table 8.5: Frequency Bands for approximate information only.
Filter Type
Q values
Low-shelving
0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0
Peaking
0.5, 0.7, 1.0, 1.4, 2.0, 4.0, 8.0
High-shelving
0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0
Table 8.6: Available Q values of Parametric EQ filters.
33
Range (Hz)
Filters
32.0 – 500.0
25.0 – 400.0
250.0 – 4.0 k
2.5 k – 40.0 k
1.0 k – 16.0 k
1
4
3
1
1
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