For the laboratory evaluation, the DB-10 was connected via the line input and adjusted to operate at a reference level of 80 dBSPL/1m. The phase remained at 0°, and the low-pass filter potentiometer was set accordingly.
The response, measured with cutoff frequencies at 50Hz, 125Hz, as well as in a full-range setting (200Hz), is smooth and predictable—precisely what one expects from a sealed enclosure system. This behavior renders the integration process of the subwoofer straightforward and constitutes the basis for a system that will not affect the overall tonal balance.

Cabinet coloration is low for this type of loudspeaker. The narrow baffle (only slightly larger than the woofer itself) does not allow placement of the accelerometer, and therefore the corresponding curve is not available; however, measurements of acceleration on the side panels reveal a resonance slightly above 300Hz at a level below –40 dBm/sec², as well as smaller resonances around and below –50 dBm/sec² within the pass-band (with the system set to full range). Based on these findings, the DB-10 enclosure may be considered stiff and uncolored, as it must be.

Previous | Next | More Reviews