|
|
Hit-O-Meter Added 9-28-2014
Odds & Ends Audio and musical instrument amplifier discussion (1) Did You Know That The Sound System For Woodstock Was Only A Two Way System? (2) The famous Woodstock "Bins" are still in use
today!!
(3) After Woodstock, the "Bins" were transported across country, & powered the low end for the Rolling Stones free concert at Altamont (4) Woodstock was powered by 48 Crown DC300 Power Amplifiers! Running in bridged mono mode at a 2 OHM load! They were housed in a semi refrigerated truck as The early Crown amps didn't have forced air cooling! The fuse holders had been strapped with #10 buss bar (5) One of the sound systems that The
Grateful Dead traveled with was running
unpainted front loaded plywood boxes for the JBL 15's with a row of multi-cellular Altec horns across the top! This was another simple two way system! The system was powered by MacIntosh tube power amplifiers And Altec tube driven mixers
(6)Tycobrahe was a Southern California
based sound company. They
built their own power amps and five way active crossovers!
The power amps were a version
of the Tiger amplifier that was
published in 1968 Popular Electronics and designed by Forrest Mims the
III. The original Tiger was only 100 Watts RMS
into an 8 OHM load. By cascading more 2N3055
ouput transistors and .1 Ohm emitter resistors
the power could be increased. They
were famous for thier use of JBL slant lens horn dispersion midrange drivers. Most had dual entry throats and dual JBL drivers! The low end was handeled by JBL 4560 &
4550 bass bins The dual 15" 4550 was
useable down to 30 Hz! Tycobrahe did most of the dance / concerts at The Shrine in Downtown LA. They also did The Rose Palace in Pasadena when
The Shrine was closed. (7) In 1968 Wizzard Light Show was tasked by the band "Fire And Water" to provide a sound system at Under The Ice House in Glendale California. This was in addition to the 360 degree light show by The Wizzard. The system consisted of four Altec A-7 "Voice of the Theater" cabinets. Running Altec 807 midrange drivers & multi cellular horns. The system was powered by four Altec 1569 A 80 Watt tube amplifiers. Mix was via three daisy chained Altec tube driven 5 channel mixers. The three Altec mixers had NO EQ!! They ran flat out and sounded incredible!!
|
