In this review, we will be comparing two different type of speakers by KEF. KEF Q150 is a Bookshelf speaker whereas the Q950 is a Floor-standing speaker.
Let's have a brief look at the main features of KEF Q150 and KEF Q950 first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how KEF Q150 and KEF Q950 compares and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Both Q150 and Q950 are 2-way speakers. Q150 features a 1" vented aluminum Dome Tweeter and 1 x 5.25" Aluminum Woofer with a Crossover frequency at 2500Hz. On the other hand, Q950 features a 1.5" vented aluminum Dome Tweeter and 2 x 8.0" Aluminum Woofer with a Crossover frequency at 2200Hz.
Q150 has a frequency range of 51-28k Hz whereas Q950 has a frequency range of 44-28k Hz. With a minimum frequency of 44Hz, the Q950 can go significantly deeper on the low side and provide stronger bass compared to the Q150's min frequency of 51Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers under Bookshelf class in our database.
Impedance and Sensitivity
Q150 and Q950 has the same Impedance of 8 ohms but where they differ is the sensitivity levels. Q150 sensitivity is rated at 86 dB and Q950's is at 91 dB. This 5 dB difference makes KEF Q950 a more sensitive speaker compared to KEF Q150, hence will play louder with the same amount of watts.
Q150 has a power range of 10-100 watts RMS whereas Q950 has a power range of 15-200 watts.
Input Type and Bi-Amping / Bi-Wiring
Q150 features Binding post type posts and Q950 has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.
Cabinet Type and Port Position
Q150 has a rear firing port whereas Q950 has a front firing ports. KEF Q950's front-firing port gives more flexibility in placement in regards to proximity to walls compared to KEF Q150 with its rear-firing port.
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, We are going to compare KEF Q150's and KEF Q950's external dimensions. KEF Q150 has external dimensions of 303.0 x 180.0 x 278.0mm ( 11.9 x 7.0 x 10.9inch) whereas KEF Q950 has external dimensions of 1117.0 x 362.0 x 315.0mm ( 43-15/16 x 14-1/4 x 12-3/8inch) .
KEF Q950 is clearly the larger of the two speakers. Its body is 182mm wider, 814mm taller and 37mm deeper than KEF Q150.
Below you can see the front view size comparison of KEF Q150 and KEF Q950 in scale.