Orion XTR Series XTR500.4 High Power Class A/B 4-Channel Amplifier - 500W RMS, 2/4 Ohm Stable, High/Low Pass Crossover, Bass Boost Control, MOSFET Power Supply, Bass Knob Included, Made in Korea

Took a while for tolerable temperatures 2 run this fantastic piece of engineering in the ride but worth the wait after initial testing. It runs my 4 components beautifully! Never getting rid of it! Still waiting for my monoblock and eventually my 2 batteries to replace my temporary battery but the fact that I can get by happily with the components ran off the first two channels and temporarily run my sub @4ohms bridged keeps the smile on my face till I can complete my project. Great great piece of engineering. (Updated Commentary) Has handled two winters with ease. Had originally ran the1st 2 channels for the front n rear components and the single 10 until I got a monoblock. After monoblock was purchased I got 2 run my components on each channel finally. After testing what worked best (high pass or full range) I figured out what I was satisfied with. Utilizing the dsp on the head unit I will not settle for any other 4 channel. I cannot wait to order 2ohm 6.5" with 1" tweeter components that carry 2ohm load for the fronts & rears now that I have finished upgrading the subs. This amp is a beast even if you part it out for half highs/mids and other half bass. Just make sure you utilize the high & mids down as low as 2ohms (in my case average of 208watts @13.6volts) and mono 4 ohms bridged (750 watts rms).

I bought this and found another Orion Xtr amp that was bigger. I like Orion Xtr parts it’s in on my stereo shelf and I kept it.

Very good product

Orion never dissatisfies me. This is my fourth Orion amp and am happy with it.

I've dealt with Orion before and they are AWESOME amps for any system bog or small but they require a significant amount of power. This is not necessarily a bad thing just something to keep in mind. You'll get the dimming lights when the bass hits but that's easily fixed by adding a capacitor.