HP4 : Annoying

Pros:

- 4 stereo inputs.

- Each of the four outputs has a four way switch to choose what to hear.

- Quite loud

Cons:

- Unbalanced inputs. If this paralleled off an output that is also sent elsewhere, beware the signal to elsewhere becomes unbalanced.

- It just doesn't sound very good. Its hard to say what it does to the sound, but I don't like it.

- On the front panel next to each headphone out is a peculiar "stereo output". This will drive headphones and is always full volume. It is an accident waiting to happen. (and has happened to me)

If you are faced with a straight choice between this and a Presonus HP4, then buy the Presonus. I find this Millenium / Alctron HP4 is just annoying.

(I own a Presonus HP4 and I think it sounds lovely)