Owner's Manual

In-Dash
tm
THREE.1
Owner’s Enjoyment Manual
3
FEATURES AND HIGHLIGHTS
The following section will tell you about all of the nifty
features of your THREE.1. Knowing these features will help
you maximize the performance of your THREE.1 in-dash
equalizer/crossover. You will also score points with your
fellow autosound buddies.
Graphic Stereo Equalization: The THREE.1 turns
the dashboard of your car into a mini-mixing board, just like
that in a recording studio. The THREE.1 has three frequency
controls set at 10KHz, 1.25KHz and 125Hz respectively. The
frequencies were selected to provide you with a just enough
control to make dramatic improvements in any system.
Master Volume: The THREE.1 has a big master volume
KNOB (no annoying up & down switches for us) to control
the signal output to the amplifiers. Raise the volume level on
your source units to their maximum and you will never need
to touch them again.
24dB/Octave Linkwitz Riley Crossover: What is
the benefit of fine tuning your system if you cannot accu-
rately route the proper frequencies to the proper amplifier
channels? The programmable audiophile crossover in the
THREE.1 is the same crossover in many other award winning
AudioControl components and is a far cry from the wimpy
crossovers that find their way into many amplifiers these days.
Para-BASS : You want bass, we got bass. This specially
designed parametric control lets you adapt the bass response
of any system to your listening desire. Given all of the
various types of music combined with numerous possible
bass response anomalies in every vehicle, a single control for
bass just doesn’t cut it. It’s like painting a picture with only
one color...BORING!
Pre-Amp Line Driver: Talk about your ironies.
Amplifiers require a high voltage input signal (generally 2 to
5 volts) to operate with maximum dynamic range and the
best signal-to-noise ratio. On the other hand, typical source
units only produce 1 to 2 volts, if your lucky. In a system
where the source unit is located in the front of the car and
the amplifier(s) are located in the rear, the length of the
connecting cables can have an negative impact on the
strength of the signal.
The THREE.1 includes a line driver that takes the weak
output voltage of a head unit and increases it 20dB (up to 13
volts peak) and then delivers it downstream to the amplifier
inputs.