Car amplifier recommendations

I am in the market to replace my car stereo amplifier. After 15+ years, it finally gave up the ghost.

It is a HiFonics Europa VIII 4 channel, 140 watts.

It was powering an Alpine SWR-10DV subwoofer. This replaced an Orion XTR series 2 10 inch, that also finally gave it up after the same amount of time a little bit prior to the amp.

It only needs to power the sub.

I am keeping the factory system as is. Its a Bose 6 speaker system and I am content with it.

I am, and have always been partial to HiFonics and would like to get another one, but will consider any equivalent brand with equal quality. Any suggestions to a suitable replacement? It has been years that I have shopped for something like this and not up to speed as I used to be with amps.