Bookshelf Speaker Reviews

Satellite Sensitivity: 80 dB from 500 Hz to 2 kHz

This graph shows the quasi-anechoic (employing close-miking of all woofers) frequency response of the Nucleus A`Diva Ti satellite (purple trace) and the TR-2 subwoofer (blue trace). The passive loudspeaker was measured with its grille at a distance of 1 meter with a 2.83-volt input.

The A`Diva Ti's listening-window response (a five-point average of axial and +/–15-degree horizontal and vertical responses) measures +1.45/–3.97 decibels from 200 hertz to 10 kilohertz. An average of axial and +/–15-degree horizontal responses measures +1.54/–3.87 dB from 200 Hz to 10 kHz. The –3dB point is at 124 Hz, and the –6dB point is at 103 Hz. Impedance reaches a minimum of 7.89 ohms at 356 Hz and a phase angle of –37.98 degrees at 174 Hz.

The TR-2's close-miked response, normalized to the level at 80 Hz, indicates that the lower –3dB point is at 49 Hz and the –6dB point is at 36 Hz. The upper –3dB point is at 126 Hz with the crossover control set to maximum and the Bass Boost switch set to 6 dB.—MJP