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61-C Galli Dr., Novato, CA 94949 415.883.8040
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Sonos Play One Measurement Data
61-C Galli Dr., Novato, CA 94949 415.883.8040
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The Sonos Play one is a well-regarded Wi-Fi enabled mini speaker. This speaker uses an approximately 3” woofer and a 0.8” tweeter in a conventional forward-facing arrangement. The speaker is 6.36” high and 4.69” square. I estimate the crossover point at 1800Hz. All measurements were made with the device volume set to 100% and care was taken with the input signal level so as to not engage the dynamic processing.
All measurements were made at Sausalito Audio which does not have a full anechoic chamber. The data is anechoic to ~500Hz and becomes increasingly corrupted by room reflections below that. Below ~150Hz the data should be largely disregarded.
Figure1:SpinoramachartfortheSonosPlayOne.Forinformationonhowtointerpretthischart,pleasesee
“InterpretingSpinoramaCharts”ontheSAwebsite.
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Sonos Play OneData Curves
Reference AxisListening WindowSound PowerEarly RelectionsDirectivity IndexDI Early Relections
61-C Galli Dr., Novato, CA 94949 415.883.8040
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Figure2:Frequencyresponsecurvesatthereferencedhorizontalangles.0°verticalistakenasthecenterofthe
tweeter.
Figure3:Thedatafromfigure2normalizedtothereferenceaxisof0°horizontal,0°verticaltomoreclearlyshow
howtheresponseofthespeakerchangesasonemovesoffthecenterline.
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dB S
PL
Frequency (Hz)
Sonos Play OneFrequency Response
0H0V
20H0V
40H0V
80H0V
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dB
Frequency (Hz)
Sonos Play OneDifference Curves
Normalized to 0H0V Ref. Axis
0H0V
20H0V
40H0V
80H0V
61-C Galli Dr., Novato, CA 94949 415.883.8040
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Figure4:Responsecurvesfor10°,20°&30°above+10°vertical.0°Visthecenterofthetweeter.The10°offsetis
introducedbecausethelistenerisexpectedtonearlyalwaysbeabovethespeaker.
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Figure5:Responsecurvesfor10°,20°&30°below+10°vertical.The10°offsetisintroducedbecausethelisteneris
expectedtonearlyalwaysbeabovethespeaker.
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dB S
PL
Frequency (Hz)
Sonos Play OneFrequency Response
0H10V
0H20V
0H30V
0H40V
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dB S
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Frequency (Hz)
Sonos Play OneFrequency Response
0H10V
0H0V
0H350V
0H340V
61-C Galli Dr., Novato, CA 94949 415.883.8040
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Figure6:+20°&0°verticalresponsenormalizedto10°verticalreferenceaxistobettershowchangeoverthe20°verticallisteningwindow.The10°offsetisintroducedbecausethelistenerisnearlyalwaysexpectedtobeabove
thespeaker
Figure7:Horizontalpolarresponseattheindicatedfrequency.Dataisnormalizedto0dBandsmoothedto1/3
octavepertheconventionforpolarplots.
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dB
Frequency (Hz)
Sonos Play OneDifference Curves
Normalized to 0H10V Ref. Axis
0H10V
0H20V
0H0V
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150160170
180190200
210220
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330340 350
Sonos Play One1/3 Oct. SmoothedHorizontal Polar
1500 Hz
2000 Hz3000 Hz
61-C Galli Dr., Novato, CA 94949 415.883.8040
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Figure8:Horizontalpolarresponseattheindicatedfrequency.Dataisnormalizedto0dBandsmoothedto1/3
octavepertheconventionforpolarplots.
Figure9:Horizontalpolarresponseattheindicatedfrequency.Dataisnormalizedto0dBandsmoothedto1/3
octavepertheconventionforpolarplots.
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130140
150160170
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210220
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Sonos Play One1/3 Oct. SmoothedHorizontal Polar
4000 Hz
6000 Hz8000 Hz
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130140
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Sonos Play One1/3 Oct. SmoothedHorizontal Polar
10000 Hz
14000 Hz18000 Hz
61-C Galli Dr., Novato, CA 94949 415.883.8040
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Figure10:Verticalpolarresponseattheindicatedfrequency.Dataisnormalizedto0dBandsmoothedto1/3
octavepertheconventionforpolarplots.
Figure11:Verticalpolarresponseattheindicatedfrequency.Dataisnormalizedto0dBandsmoothedto1/3
octavepertheconventionforpolarplots.
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6050
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10
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350
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Sonos Play OneNormalized1/3 Oct. SmoothedVertical Polar
1500 Hz2000 Hz3000 Hz
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Sonos Play OneNormalized1/3 Oct. SmoothedVertical Polar
4000 Hz6000 Hz8000 Hz
61-C Galli Dr., Novato, CA 94949 415.883.8040
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Figure12:Verticalpolarresponseattheindicatedfrequency.Dataisnormalizedto0dBandsmoothedto1/3
octavepertheconventionforpolarplots.
Figure13:Thechartshowsthe-6dBpointasafunctionoffrequencyandcoverageangle.
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Sonos Play OneNormalized1/3 Oct. SmoothedVertical Polar
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-6 d
B B
eam
wid
th (d
egre
es)
Frequency
Sonos Play OneBeamwidth
Horizontal Beamwidth
Vertical Beamwidth
