Excellent No Box Open Baffle Speakers

The 15" bass driver on these Open Baffle Speakers says BGS 40 8ohm Art no 3040...this might also be of some help. Acrylic measures 20" wide and 40" deep and 1/2" thick, and almost "disappears"!...very wife friendly! and in immaculate condition! the wooden Greenheart base measures 20" deep x 9" wide x 5" deep...in total from the top of the Acrylic to base of wood on the floor it is 44"...the wooden bases have white "felt" pads underneath them... two silver wires + & - come out of the boxs and connect to the bass driver, the crossover boxs accept "banana plugs" only at the moment and they are made so that they are sunken a little inside the box, but it is possible perhaps that spades and bare wire could be used easily somehow at a later date.  There are black foam "cones" on each of the back of the drivers, which you can leave off, or which you can experiment with to manipulate rear reflections.   

Characteristics and sound propertiesThe NoBox BB unites a number of preferences in a single concept: it achieves the directness of a full-range loudspeaker, in particular in the voice range, and also manages to produce powerful, stable bass without having to fill the room with hardware. The B 200 6 Ohm is used in the NoBox BB together with a 38 cm BGS 40 8 Ohm woofer in an open baffle as a dipole. The electric separation between the two drivers is low enough (250 Hz), which enables the full-range speaker to make full use of its capabilities and the BGS 40 8 Ohm is effectively the supporting woofer. The BGS 40 8 Ohm is a musician's driver with high sensitivity and can, as a result, easily be adapted to the B 200 6 Ohm without giving anything away in terms of mean sound pressure. Despite the baffle being open, which theoretically causes an acoustic short circuit in the bass range, the system produces a dynamic low bass output down to 32 Hz (-10 dB). One reason for this is that the baffle is cut off from the floor and so no acoustic short circuit can take place in this direction. In addition, the side panels of the cabinet, which are mainly for stability, increase the acoustic distance travelled.

These open baffle speakers are truely fantastic speakers

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Excellent No Box Open Baffle Speakers