In-Dash
tm
HPX
Owner’s Enjoyment Manual
3
FEATURES AND HIGHLIGHTS
The following section will tell you about all of the nifty
features of your HPX. Knowing these features will help you
maximize the performance of your HPX in-dash processor/
crossover. It will also make you the envy of all of your fellow
autosound dudes and dudettes.
High Definition Expansion (HDE):
The HDE
circuit is the heart and soul of the HPX in-dash processor/
crossover. Whether you are using music recorded using
perceptual coding, some form of compression technology
like MP3 or MiniDisc, or just have less than desirable speaker
locations, the HDE circuit will truly enhance the size of your
performance autosound system.
Portable Audio Input:
The HPX provides a conve-
niently located stereo
1
⁄
8
" jack on the faceplate to allow you
to easily plug in an MP3 player, Discman, or other portable
audio player. How convenient!!
Signal-sensing Display:
The stylish blue and red
display senses the enhancements created by the HDE circuit
and turns them into an awesome light show. What’s even
better is the fact that you can customize the lens pattern that
the lights display through. What’s sound without the light?
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-caliber crossover in
the HPX 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.
Pre-Amp Line Driver:
Talk about your ironies. Ampli-
fiers 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
put out 1 to 2 volts, if you’re 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 connect-
ing cables can have an negative impact on the strength of the
signal.
The HPX includes a line driver that takes the weak output
voltage of a head unit and increases it 20 dB (up to 13 volts
peak) and then delivers it downstream to the amplifier inputs.
