How to Upgrade Your Car Audio System with Alpine PXE-H660 and Audyssey MultEQ If you are looking for a way to improve the sound quality of your factory car audio system, you might want to consider the Alpine PXE-H660 and Audyssey MultEQ. These are two products that work together to optimize the acoustics of your car and deliver a
more accurate and immersive sound experience.

The Alpine PXE-H660 is a system integration audio processor that can connect to any factory head unit and provide a high-quality signal for your speakers and amplifiers. It uses IMPRINT technology, which is a proprietary sound tuning method that measures
the acoustic characteristics of your car and applies corrections to the frequency response and time alignment of each speaker. The result is a sound that is tailored to your specific car and your personal preferences.

alpine pxe-h660 pxe-H650 Imprint Audyssey MultEQ V2.2.9
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The Audyssey MultEQ is a software application that works with the Alpine PXE-H660 and allows you to fine-tune the sound settings even further. You can use it to view the speaker detection results, check the before and after effects of the IMPRINT
calibration, edit the target curve for each channel pair, and adjust the frequency rolloff for each channel pair. You can also save and load different presets for different listening scenarios.

To use the Audyssey MultEQ, you need to download it from the Google Play Store[^3^] and connect your Android device to the USB port on the PXE-H660. You can then control the PXE-H660 from your device and make adjustments to the sound settings in real
time.

The Alpine PXE-H660 and Audyssey MultEQ are compatible with most factory head units and speakers, as well as aftermarket amplifiers and subwoofers. They are easy to install and use, and they can make a significant difference in the sound quality of your
car audio system. If you want to experience music the way the artist intended, you should give them a try.
To install the Alpine PXE-H660, you need to follow these steps:


Choose a suitable location for the PXE-H660, such as under a seat or in the trunk. Make sure it is not exposed to excessive heat, moisture, or dust. Use the supplied screws and brackets to secure it firmly.
Connect the power and ground wires to the PXE-H660. The power wire should be connected to a 12V source that is switched on and off with the ignition. The ground wire should be connected to a clean metal point on the chassis. Use a fuse holder and a 15A
fuse for the power wire.
Connect the speaker input wires to the PXE-H660. You can use either high-level inputs or low-level inputs, depending on your factory head unit. If you use high-level inputs, you need to splice the speaker wires from the head unit to the supplied speaker
input harness. If you use low-level inputs, you need to use RCA cables to connect the head unit's preamp outputs to the PXE-H660's RCA inputs.
Connect the speaker output wires to the PXE-H660. You can use either full-range or two-way outputs, depending on your speaker system configuration. If you use full-range outputs, you need to connect the L/R RCA outputs to your amplifier's input channels.
If you use two-way outputs, you need to connect the L1/R1 RCA outputs to your tweeter amplifier channels and the L2/R2 RCA outputs to your midrange amplifier channels[^1^].
Connect the USB cable to the PXE-H660 and your Android device. You will need this connection for using the Audyssey MultEQ app.
Connect the remote control sensor to the PXE-H660 and mount it in a convenient location on your dashboard. You will need this sensor for using the remote control.
Turn on your car and head unit and check if everything is working properly. You can use the remote control to adjust the volume, mute, source, and preset settings of the PXE-H660.

For more details and diagrams, please refer to the owner's manual[^1^] of the PXE-H660.
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