Tapered quarter wavelength pipe design (TQWP)
Solid wood exterior
Fostex 208 Sigma, 206E or 208ES drivers
Curved internal structure at mouth
Sand filled cavity at base
Long strand wool stuffing
Felt mat dampening behind driver
Size: 10″ w x 72″ h x 11″ d (25 cm w x 183 cm h x 28 cm d)
Weight: 35 lb each (16 kg)
Clean design, efficient and natural