Systems ListDIYFocusWorks Audio GUJ21V1 (DBV21 320L Sealed)

System typeSealed
DriverFocusWorks Audio GUJ21V1
Driver Size21 "
Number of drivers1
Internal volume11.3 ft3
External volume15.31 ft3
Dimentions (Width Height Depth)36 " 24.5 " 30 "
Weight135 lbs
Aprox. Price$1300 USD


The GUJ21v1 offers much the same type of performance as the smaller GUJ18v1, but with a bit more sensitivity and 3dB more displacement limited output due to the larger cone. The somewhat unusual driver design of: An underhung topology, an extra-large 4.5 inch diameter voice coil, long geometric xmax and a neodymium magnet based motor, produces drivers that perform well and are a bit different from most others on the market.