Definitive Technology Wireless Collection Multiroom Audio System Review Test Bench

Test Bench

This graph shows the quasi-anechoic (employing close-miking of all woofers) frequency response of the W9 Sound System (purple trace) and W7 Sound System (red trace). The left channel of each was measured with grille at a distance of 1 meter.

The W9 Sound System’s listening-window response (a five-point average of axial and +/–15-degree horizontal and vertical responses) measures + 4.59 /– 3.42 decibels from 200 hertz to 10 kilohertz. An average of axial and +/–15-degree horizontal responses measures +4.70/–3.53 dB from 200 Hz to 10 kHz. The –3dB point is at 57 Hz, and the –6dB point is at 46 Hz.

The W7 Sound System’s listening-window response (a five-point average of axial and +/–15-degree horizontal and vertical responses) measures + 1.81 /– 3.34 decibels from 200 hertz to 10 kilohertz. An average of axial and +/–15-degree horizontal responses measures +1.83/–3.46 dB from 200 Hz to 10 kHz. The –3dB point is at 75 Hz, and the –6dB point is at 68 Hz.—MJP

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bmeinhard's picture

Really Def Tech? I would love to give you my money and sell ALL my SONOS gear on eBay. But without the inclusion of a 12 v trigger circuit - I have no interest in your product. FAIL!

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