The Revelator woofers and subwoofers features very rigid cones in paper or aluminium that operates as a piston over a wide frequency range, in combination with Scan-Speaks low-loss linear suspension and the patented Symmetrical Drive (SD-1) it results in very low distortion and a smooth and well behaved frequency response as well as perfect transient reproduction.
Datasheet: Datasheet 26W/8861T00

Size (inches): 10
Fs (Hz): 19
Re (ohms): 6.2
Sensitivity (dB): 88.5
Qt: 0.31
VAS (ltr.): 231
Xmax ± (mm): 9

DIY kits for this driver:
Jenzen Illuminator made by Troels Gravesen
Jensen 1071 made by Troels Gravesen
Illuminator 5 made by Troels Gravesen