The DTQWT construction is based on the JA8008/TQWT construction with two 10" Eminence Deltalite II 2510 bass drivers added, providing a total membrane area exceeding a 15" driver. The front drivers and crossovers are the same as for JA8008/TQWT. The rear bass drivers are fed from a simple 1st order crossover. It is thus possible to up-grade an existing JA8008/TQWT design by building new cabs and buying four bass drivers, 2 coils, 2 caps and 2 resistors, that's all.
The DTQWT construction has an 8" front driver and two 10" rear mounted drivers, all connected with positive polarity. They're placed opposite to one another and the rear drivers are fed through a huge coil, thus only adding weight to the lower octaves. All drivers load a center horn and you may ask whether the large bass drivers won't have an impact on the front driver from sharing the same open space and the answer is yes - and this is intentional. Air goes where pressure is low, thus when the rear bass drivers move inwards, they will push air into the large center horn and by doing so they will suck air from the front horn and pull the membrane of the front driver. Obviously the front driver will do the same thing for the bass drivers. We have a situation similar to a push-push configuration of two opposite placed bass drivers in a vented cabinet.
The subjective experience from this is a cleaner midrange, distortion has been lowered at high SPLs and yes - we have more bass. In fact a lot more bass. The typical quality of the bass from a horn is quite different from conventional high mass/low efficiency bass drivers in small vented enclosures. The DTQWT delivers deep, dynamic and dry bass - anything but boomy.
Please see link for all specifications.
Kit Includes all xover components, cable, drivers(apart from woofers - see options tab), waveguides, terminals and ports.
$2,650.00