What is the opinion of Reddit about the
Musical Fidelity V90HPA Headphone Amplifier?

The V90 HPA ticks all of your boxes. You can connect it to your computer via USB, connect your headphones to it and use the line-outs to connect your monitors. There’s even a line-in for your future potential vinyl!

Edit: I see that the rear line-outs are fixed, which means you’ll have to add something like this if you want to control your monitors’ volume without having to reach around every time.

Hello again! As long as your source is going to be a computer, this is a rather excellent buy that ticks all of your boxes.