Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
Sound Processing
Imprint: By adding this PXA-H100 Imprint box and the
KTX-H100 tuning kit (item number 500KTXH100) to a compatible Alpine head unit (with Ai-NET), a car's inherent acoustic
shortcomings can be overcome with the MultEQ feature. Imprint also gives you
much more sound adjustment flexibility as detailed below.
MultEQ: MultEQ, developed by Audyssey Labs, automatically
optimizes the audio for the listening environment inside your vehicle. The
Imprint box and tuning kit include the hardware, software, and microphone
necessary to measure multiple positions in the car and capture frequency and
time domain information from the vehicle's actual acoustical environment. Once
the car's speaker location delays are measured, along with the frequency peaks
and dips caused by the absorptive and reflective materials in the interior,
MultEQ creates a set of equalization filters to correct the frequency response
and time domain problems for each speaker in the vehicle. It also removes sound
distortion caused by the specific acoustical problems in the vehicle by applying
unique FIR filters, using more than 500 points along the frequency spectrum per
channel. This optimizes the sound reproduction to the specific vehicle listening
environment with much greater precision than can be achieved using typical
graphic or parametric equalization. The result is a more accurate soundstage and
smoother, more natural sound optimized to match your vehicle.
Equalizer: 10 typical equalizer settings are preset at the
factory for a variety of musical source material. You can select from - Flat,
Pops, Rock, News, Jazz & Blues, Electrical Dance, Hip Hop & Rap, Easy Listening,
Country, and Classical. The head unit will also save six custom EQ curves you
create by adjusting the units built-in EQ. Choose the parametric or graphic EQ:
- 5- Band Parametric EQ: The built-in Parametric EQ
allows you to adjust the following 5 frequency bands in 1/3 octave steps
from -6 to +6 dB at a bandwidth Q factor of 1, 1.5, or 3
- Band 1: 20 Hz to 80 Hz
- Band 2: 50 Hz to 200 Hz
- Band 3: 125 Hz to 3.2 kHz
- Band 4: 315 Hz to 8 kHz
- Band 5: 800 Hz to 20 kHz
- 7-Band Graphic EQ: The built-in Graphic EQ allows you
to adjust the following 7 frequencies from -6 to +6 dB
- Band 1: 63 Hz
- Band 2: 150 Hz
- Band 3: 400 Hz
- Band 4: 1 kHz
- Band 5: 2.5 kHz
- Band 6: 6.3 kHz
- Band 7: 17.5 kHz
Crossover: The active crossover can be used as a 2.2 channel
(3-way; low-pass subwoofer, band-pass midrange, high-pass tweeter) or a 4.2
channel (2-way; high-pass front and rear, low-pass subwoofer). A crossover
limits the frequencies delivered to a given speaker, so you send only the
frequencies for which the speaker is well suited. The crossover adjusts the high
pass filter or low pass filter of each band along with the slope and output
level. You can adjust the following crossover settings:
- 4.2 Channel:
- High Pass Filter: the front and rear outputs are
individually adjustable; crossover from 20 to 200 Hz in 1/3 octave steps
with a slope of Flat, 6, 12, 18 or 24 dB/oct, additionally you can
adjust the output level from -12 to 0 dB
- Low Pass Filter: the subwoofer output can be stereo
or mono; crossover from 20 to 200 Hz in 1/3 octave steps with a slope of
Flat, 6, 12, 18 or 24 dB/oct, additionally you can adjust the output
level from -12 to 0 dB
- 2.2 Channel:
- Tweeter/High Pass Filter: crossover from 1 kHz to
20 kHz in 1/3 octave steps with a slope of 6, 12, 18, or 24 dB/oct,
additionally you can adjust the output level from -12 to 0 dB
- Midrange/Band Pass Filter: a band pass has both
high pass and low pass filters; HPF 20 to 200 Hz in 1/3 octave steps
with a slope of Flat, 6, 12, 18 or 24 dB/oct; LPF from 20 Hz to 20 kHz
in 1/3 octave steps with a slope of Flat, 6, 12, 18 or 24 dB/oct,
additionally you can adjust the output level from -12 to 0 dB
- Subwoofer/Low Pass Filter: the subwoofer output can
be stereo or mono; crossover from 20 to 200 Hz in 1/3 octave steps with
a slope of Flat, 6, 12, 18 or 24 dB/oct, additionally you can adjust the
output level from -12 to 0 dB
Time Correction: The time correction feature delays the
audio signal to the speakers closer to the listener. This effectively creates a
perception of increased distance for those speakers. Time Correction allows the
listener to be placed at an equal distance from all speakers for optimum
staging. You can adjust the distance of each speaker and subwoofer (6-channel)
to the listener from 0 to 132.7 inches.
Media Xpander: The MX (Media Xpander) function makes vocals
or instruments sound distinct by restoring sound quality typically lost during
recording or transmission; this function helps restore audio information that
becomes obscured when audio is compressed. The MX function can be applied to all
sources, except AM radio. There are three settings and each source can have its
own setting.
