only those frequencies they can use by “chopping off” bass
below an installer programmed frequency (40Hz is the
factory setting). The woofer is protected and can do a better
job of reproducing mid-bass and higher frequencies. It also
helps keep the speakers in one piece when the teenagers get
control of the stereo.
Made in the Northwest Rainforest - The AEQ-26
began its existence at our factory in Mountlake Terrace,
Washington, a few miles north of Seattle. Here, we also build
precision test instruments, home audio equalizers and
analyzers and a totally awesome line of car stereo compo-
nents. AudioControl began in 1977 and has won so many
audio industry awards for design and engineering excellence
that our reception room wall is starting to sag. But enough
about us. Let’s start getting the most from your audio system!
The AEQ-26 Product Highlights
Specially Designed Frequency Controls - The
AEQ-26 is engineered to provide a dramatic sound improve-
ment for “small” speakers, such as those with 8-inch or
smaller woofers. The AEQ-26’s 45Hz, 150Hz, 300Hz, 700Hz,
2500Hz and 12kHz band centers were chosen to optimize in-
wall and small 2-way box speakers at critical frequencies
where adjustment is most advantageous. The bandwidths (or
‘Q’ as our engineering types call it) have also been optimized
for the difficulties that in-wall speakers present. This allows
the AEQ-26 to improve the sound of these smaller speakers
better than any other equalizer.
Programmable PFM Bass-cut Filter - The AEQ-26’s
programmable bass-cut circuitry is an installer adjustable
low frequency blocking filter which protects small speakers
from too much low end and improves their overall sound.
The smaller woofers found in most in-wall or bookshelf
speakers cannot reproduce the bass of a larger speaker (the
laws of physics intervene). If called upon to reproduce a bass
note that would cause the speaker to move PAST its maxi-
mum cone travel, damage can result - and even if it doesn’t,
severe audible distortion DOES. The solution is
AudioControl’s exclusive PFM circuit. It gives small woofers
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