The Scoop has volume output
comparable to two speakers in one box. The rear waves from the
speaker cone are augmented and mechanically amplified. So speaker
output is actually doubled without also having to double the
number of amplifiers. The design costs more and is more difficult
to make but the output makes it worth the expenditure.
This design was originally
copied from published drawings and specifications but actual
performance necessitated numerous improvements to horn design
registering in greater efficiency and output. Panels are fully
supported and braced to prevent vibration thereby permitting
the speaker energy to vibrate the air and not the box.
This unit is easily maneuvered
by one person and, two persons can carry this cab up and down
steps with no problem.
(ported) boxes do not have the bass output of this design.
The useable range here
is from 50-250Hz. The horn loaded rear of the woofer is responsible
for the majority of the bass output while the front compliments
the upper range. Floor placement additionally augments the bass
output as well as many cabs placed together.