Hi all,   I have a Firestone audio icute amp, and it has a low gain / high gain switch. I'm currently using my ipod as a source, connected via a 3.5mm to RCA cable to the amp. I've ordered a Line Out cable for the ipod, but it'll take a while to arrive since I don't live in the US. In the...

Driven by a headphone amplifier with an output impedance lower than 1 ohm (Cute Beyond in my case), which of the DT 770 Pro versions has better bass extension, the 80 ohm version, or the 250 ohm version? (By bass extension I mean which outputs lower frequencies.) I have read that the 80 ohm...

I have a Firestone Audio Cute Beyond headphone amplifier. It is the "newer" model, which has been available for a couple of years already I think. It has a 6,3 mm (1/4") headphone connector and, according to the specs, an OPA2604. The specs do not tell what is the output impedance (which is a...

I spent a good part of this afternoon listening to the Firestone Cute Curve amp||Beyerdynamic DT 880 Pro (600Ohm) combination this afternoon, and I can say that I came away impressed by both components.  The amp had no problem driving the cans.  It sells for about $175 here in Jakarta.   Has...

Headphones: HD 598 Soundcard: Asus Xonar Essence ST OS: Windows 7 64-bit   Q:Why do I want to pair a dac and/or amp with the ST?  A:Because I would like a physical nob for volume, bass, treble and any other features I can turn on.    Q:What kind of dac/amp am I looking for?    ...