Looking for a very good but simple Headphone Amp (under $300). Though I have a small recording setup, I need something more than the small one-third rack space 5 headphone volume box I have been using. I would like something with an input gain, and a fair amount of amplification to 4 to 8 headphone jacks, with possibly some level indicators per channel. I don't need any sophisticated monitor-mix choices, or individual control boxes for the musicians, just one mix going to a good amp, then by 1/4 inch cables to the phones. The phones I am using are AKG K250 Studio Monitors. I have done some shopping around and these units seem to be available: Furman HA6AB Behringer HA8000 Behringer HA4700 Any other thoughts? Thanks!