Issue #5 - FAST BASS
Table of Contents
"Fast Bass" We all know it when we hear it. And we
know "Slow Bass" when we hear it too. Those words
get thrown around a lot, but what do they mean in
It's simple, really. Does the low frequency system's
acoustic output closely track the input signal or does
it do something else? (It actually has nothing to do
with speed; the woofers are not going faster, it has
to do with....well....fidelity, accuracy. But, anyway,
Speed, Fast and Slow are good words so let's use
Speed means that when you put this in:
You get this out:
Not this. This is Slow:
There are numerous reasons a system does not track
the signal and, instead, does something else, is Slow.
And the #1 biggie is the deliberate choice by the
designer: to trade Speed for an equally desirable
trait: low frequency extension. With passive systems
you're stuck with that choice. You go with a vented
alignment to get low bass and, in the process, you
accept the ringing that comes along with it. Or
maybe you add mass to the woofer cone to get it to
go low and accept that it takes a while to get going
and while to stop. There are plenty of other strategies
but each one pays for bass extension with Speed.
I know. I made those choices. But now we're free
from that. Now we get 'em both!
In our lab we align our systems for optimal Speed by
looking directly at signal tracking and nothing else.
Then we apply DSP equalization to ‘buy back’ the low
frequencies without hurting the Speed. It's so simple
it's hard to believe.
You know what? NONE of the conventional guys want
to hear this stuff……but I'm having WAY TOO MUCH
Dump your conventional gear while you can.......