OT: Ha valaki igazi melynyomokat szeretne...

[Topybear]

http://www.royaldevice.com/custom3.htm

Sokat nem irnek rola, mert kepek nelkul nehez elkepzelni,de:
"The Biggest SUBWOOFER of the WORLD, for the most esoteric Audio Room of 
the World. The Highest efficiency ever obtained with NO distortion using NO 
feedback tube low power amplifiers and NO crossover on the speakers.
The AUDIO room is 6.95 x 8.70 meters.
SUBWOOFER horns are built underneath the floor in a cavity of 1 meter deep. 
Each horn is driven by 8 x 18" (47 cm) woofers. A total of 16 woofers.
Each horn is 9.5 meters long and has a floor mouth area of 2.2 square 
meters and reproduce starting from 10 Hertz FULL POWER. The real mouth area 
IS NOT the one on the floor. The real mouth have to be considered together 
with the side vertical frontal panel. The total horn is calculated onto the 
listening point considering the side walls and the ceiling loadings. This 
reduces the floor mouth that is not in open air.
Total efficiency: more than 110 dB/1 watt/1 meter
SUB-WOOFER Compression chamber closure ( 120 Kg on 3,6 mq) are held and 
reiforced by an extra weight of 600 Kg. Total closure weight 720 Kg.
Acoustic level at listening position (6 meters from frontal speakers) are 
100 dB with 1 Watt."

Topy

PS: Bár ebben azért villany is van...