P48E DSP Car Audio Equalizer built-in Amplifier, 31-Band Graphic Equalizers, 8-Channels Output, 4-Channels Input, With APP/PC/Manual Control/Bluetooth/USB/Optical IN,Digital Signal Processor

It looks nice on the outside and it's sound stage is very customizable. Good aluminum body for heat extraction. Not hard on the eyes except the stupid name. (I'm guessing it's original name doesn't translate to English well.) Plenty of I/o for an entire system. Very customizable sound processing. Sounds great once you figure out how to set it up. Don't worry though, you'll be a configuration champ real soon because every time you turn off the vehicle or will lose some of the config causing you to go back in and verify everything is like it's suppose to be. (Yes it was connected properly. I've been installing and tuning systems since the early 90's when and cost a $/watt). This configuration uncertainty at startup caused me anxiety worrying wether my system would get blown due to the DSP not saving properly. Other points of concern were: 1. No mounting holes, tabs, straps, or anything to hold the DSP in place. That was a big wtf moment for me! 2. Instructions are laughable. 3. Foreign designed app with with questionable info security. 4. Loads very slowly, including initial connection, saving the part of the config it would save, and loading a saved config from one of its presets.The cheap plastic Tampono DSP I got for $99 on Amazon sounded just as good, probably better, was easier the get configured initially, loads faster, and has triggered/programmable output amp (or any 12v device not requiring high current, like small LED strips mounted in an amp with an acrylic bottom panel) turn-on relays.

Using this specific unit in a Harley, mainly so we can adjust and tune without having to remove the entire front faring every time... This way we can get everything installed, set the gains, put the bike back together, and do the tuning remotely on a phone or laptop, which is kind of required since to properly tune we need to be able to drive the bike, test with it running, etc. So far no big issues, and no big surprises. This is a pretty simple install though, not the typical use-case for a DSP. We will be using the full capabilities to tune the system but my main goal was just to be able to do basic tuning remotely instead of having to have direct access to the Rockford Fosgate amp or trying to tune using the limited EQ on the Sony radio..

This has been fun to experiment with. It’s easy to change your settings in the app. Lots of power to play with as well.