Aerial Acoustics Model 20T!!
SPECIFICATIONS
Frequency Response 27 Hz to 30 kHz ± 2 dB. -8 dB at 23 Hz and 40 kHz
Sensitivity 90 dB at 2.83 Vrms and 1.0 meter on axis
Impedance 4 Ω nominal, 2.8 Ω minimum, low reactance
Power Requirements 50 to 800 watts (8 Ω rating) recommended
Crossover 300 Hz and 3.5 kHz at 24 dB per octave Linkwitz-Riley
Large independent networks on glass-epoxy PCBs
High-purity copper wiring with TeflonÆ insulation
Assembled 15.4 x 10.7 x 22.5" (390 x 272 x 572 mm)
29.1 x 12.6 x 22.5" (740 x 320 x 572 mm)
47.0 x 12.6 x 22.5" (1194 x 320 x 572 mm)
Weight Each 252 lbs (115 kg). 346 lbs (157 kg) packed