Systems ListJTR SpeakersCaptivator 212-Pro

ManufactureJTR Speakers
System typeVented
Driver Size12 "
Number of drivers2
External volume6.25 ft3
Dimentions (Width Height Depth)16 " 30 " 22.5 "
Weight69 lbs
Aprox. Price$1199 USD


JTR Speakers Captivator 212Pro is a compact vented design, intended for pro audio and sound reinforcement applications, where a larger and heavier cabinet is overkill or impractical. The cabinet is constructed of 15mm Baltic birch ply with an integral slot port that stretches the length of the cabinet baffle, just under a pair of 12 inch drivers. The drivers are a proprietary JTR design with very high efficiency, low moving mass and a generous amount of useful excursion for a 12 inch pro style driver. The sensitivity of the pair of drivers in such a small cabinet turned out to be quite high indeed. The slot port tunes the system to about 42Hz and provides strong output capabilities down to 40Hz. The effective useful bandwidth is roughly 35-150Hz. The cab has, rubber feet with recesses on the opposite side for stacking of multiple 212Pro’s. Integral handles and a pole mount for use with stick mounted main speakers are also provided. The finish is a tough, durable, black Line-X coating designed to take abuse from moving the cabs and weather. The cabinet dimensions are just 30x22.5x16 and the weight of the passive version is just 69lbs. This would be a solidly medium sized subwoofer if it were a home audio product but for something intended to have the output and abuse tolerance necessary for sound reinforcement this is quite small and light. I found it quite manageable and easy to move around by myself.

The 212Pro is available in a passive version, as tested here for $1199 and also an active version, with built in plate amplifier and processing, for $1599. The passive version is an easy system to drive. The sensitivity is quite high and it does not require a huge amplifier to get the most from it. A 1000 watt at 4ohm rated amplifier will match up quite well. Another benefit of this is that a pair, or quad of the 212Pro, can be driven well from a single amplifier, rated at 2000 to 4000 watt into the nominal impedance as wired. A single moderate sized amp like that should be able to run off the often small or subpar electrical supply found at venues. The size and weight of the 212Pro, plus the fact that it can produce a loud and clear 40Hz, while requiring little power to do so, makes it a compelling choice for sound reinforcement applications.