KEF HTF8003 Soundbar Speaker System HT Labs Measures

HT Labs Measures

L/R Sensitivity: 88 dB from 500 Hz to 2 kHz

Center Sensitivity: 90 dB from 500 Hz to 2 kHz

Surround Sensitivity: 86.5 dB from 500 Hz to 2 kHz

This graph shows the quasi-anechoic (employing close-miking of all woofers) frequency response of the HTF8003 L/R (purple trace), HTF8003 center channel (green trace), HTS3001SE surround (red trace), and HTB2SE-W subwoofer (blue trace). All passive loudspeakers were measured with grilles at a distance of 1 meter with a 2.83-volt input and scaled for display purposes.

The HTF8003 L/R’s listening-window response (a five-point average of axial and +/–15-degree horizontal and vertical responses) measures +4.77/–3.39 decibels from 200 hertz to 10 kilohertz. The –3-dB point is at 232 Hz, and the –6-dB point is at 148 Hz. Impedance reaches a minimum of 4.51 ohms at 398 Hz and a phase angle of –30.50 degrees at 198 Hz.

The HTF8003 center’s listening-window response measures +4.64/ –3.17 dB from 200 Hz to 10 kHz. An average of axial and +/–15-degree horizontal responses measures +4.82/–3.81 dB from 200 Hz to 10 kHz. The –3-dB point is at 208 Hz, and the –6-dB point is at 141 Hz. Impedance reaches a minimum of 4.53 ohms at 413 Hz and a phase angle of –28.44 degrees at 198 Hz.

The HTS3001SE’s listening-window response measures +2.73/ –4.11 dB from 200 Hz to 10 kHz. The –3-dB point is at 112 Hz, and the –6-dB point is at 98 Hz. Impedance reaches a minimum of 4.01 ohms at 251 Hz and a phase angle of –46.70 degrees at 154 Hz.

The HTB2SE-W’s close-miked response, normalized to the level at 80 Hz, indicates that the lower –3-dB point is at 38 Hz and the –6-dB point is at 33 Hz. The upper –3-dB point is at 138 Hz with the Bass Boost switch set to +6 dB.—MJP

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