Bookshelf Speaker Reviews

KEF Q Series Q350 Speaker System Review Test Bench

Test Bench

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Q350 (purple) +0.65/–3.49 dB, 200 Hz to 10 kHz; –3 dB @ 56 Hz, –6 dB @ 41 Hz; impedance minimum 4.54 ohms @ 177 Hz, phase angle –65.15º @ 96 Hz; sensitivity 87 dB, 500 Hz to 2 kHz.

Q650c (green) +0.95/–4.80 dB, 200 Hz to 10 kHz; –3 dB @ 65 Hz, –6 dB @ 53 Hz; impedance minimum 5.19 ohms @ 15.2 kHz, phase angle –50.74º @ 4.2 kHz; sensitivity 87.5 dB, 500 Hz to 2 kHz.

Q50a (yellow) +3.15/–2.92 dB, 200 Hz to 10 kHz; –3 dB @ 107 Hz, –6 dB @ 91 Hz; impedance minimum 4.83 ohms @ 223 Hz, phase angle –55.62º @ 136 Hz; sensitivity 86.5 dB, 500 Hz to 2 kHz.

Kube 12b (blue) Close-miked response, normalized to level @ 80 Hz: lower –3 dB @ 17 Hz, –6 dB @14 Hz, upper –3 dB @137 Hz with EQ switch set to In-Room, Crossover control set to maximum.—MJP

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COMMENTS
A guy in Saskatoon's picture
Submitted by A guy in Saskatoon on June 1, 2018 - 10:44am

Albeit it is understandable if you did not have available a pair of the reviewer darlings KEF LS50 for direct comparison, but from your memory how do these compare? Granted the LS50s are far prettier looking, but when the lights are out in the theatre it matters how they sound!
Secondly, would you consider using another Q350 instead of the Q650c as a centre channel?

funambulistic's picture
Submitted by funambulistic on June 1, 2018 - 1:31pm

… the LS50 and Q350 are pretty darn close, with the (slight) edge going to the LS50 in the mid bass (the treble performance, to me, is a wash). I think KEF hit one out of the park with the 2017 Q series.

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