When finished, this sub weighs in at a beefy 70 pounds, and is extremely solid looking and feeling. From my power testing of the design, it turns out that the 1000 watt amp is nearly perfect for this system, and runs out of power right as the woofer is running out of excursion. The soft clip circuitry in the amplifier kicks in very gracefully, so we get very little distortion even at the extreme limits of output, which is about 108 dB.

As can be seen in the graph, with the proper adjustments this sub can have a flat frequency response from 30 Hz to 75 Hz with 3 dB down points of 28 Hz and 80 Hz. This very flat response is very impressive on test tones, but will probably need some adjustment for a fl at in-room response. Once this is done, the subwoofer nearly disappears, and can blend in with just about any main speaker. Thanks to the low-distortion of the driver and good amplifier headroom, this subwoofer sounds very clean and tight, but will still perform well on ultra-low-frequency content. All in all, this is a very nice all-around subwoofer that is compact, looks great, and sounds great!