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All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Notes: The Domain Omni PX1’s 360-degree radiating pattern means that it directs much more energy to its sides and rear than does a front-firing loudspeaker. In an anechoic chamber, this side- and rear-directed energy is mostly absorbed -- something that wouldn’t happen in a typical listening room. Therefore, while the measured anechoic sensitivity of any loudspeaker will be lower than its in-room sensitivity, the difference between these sensitivities with the PX1 is significantly greater than with a front-firing loudspeaker.

The PX1’s very low anechoic sensitivity meant that the test equipment would not allow for the extremely high voltages needed to perform the tests of total harmonic distortion plus noise and deviation from linearity at our standard level of 90dB. Instead, we had to take both readings at a level of 85dB. This was not a limitation of the loudspeaker, but of the test equipment used.

The PX1’s responses varied depending on the axis; therefore, in addition to measuring the PX1’s response on axis, we also measured it at 60 degrees off axis.

Setup

Microphone measuring position: 39" up from bottom
Grille: n/a

Frequency response and sensitivity

Sensitivity: 72.1dB (averaged 300Hz-3kHz on Listening Window, 2.83V/1m)

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

fr on1530

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

fr_456075

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Listening window (on-axis)

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

fr_listeningwindow

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Listening window (60-degrees off-axis)

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

fr_listeningwindow

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 85dB, 50Hz - 10kHz (measured @ 2m)

thd_90db

Top curve: frequency response @ 85dB SPL
Bottom curve: THD+N @ 85dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 85dB from 70dB, 50Hz - 20kHz (measured @ 2m)

dev_90db

Impedance magnitude variation

Impedance

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

electrical_phase

Vertical axis: phase
Horizontal axis: frequency

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