Firestone Audio have been making steady strides in desktop audio. To complement this year’s long, hot summer, they pushed out two hot amps: the Rubby power amp and the Libby headphone amplifier. Why they are such big news here at TMA is that both mains-powered amps also feature great USB/Optical/Coax and analogue audio inputs. If you can put two and two together, you’ve probably figured out that this means hi-res audio from the iPad through theÂ Camera Connection Kit (CCK). Recently, I`ve forgone the whole computer thing in favour of just this combination. Still, both amps work great with computers, with external DAC`s, and with other Hifi gear.Â Nevertheless, TMA will keep the iPad slant in this review, but show just what can be done with these two desktop amps.