Hello guys, I'm planning to buy a Fostex TH900 soon and I would like your ideas or recommendations on amp matching. I know Fostex TH900 is a relatively new product and not many people have heard it yet, but I hear from the high-ranking(?) members of Head-Fi that it is a glorious sounding headphone in the same league as the best headphones in the market (ex. LCD-3, HD800, SR-009), yet fairly easy to drive by most amps. Even so, I'd be glad to hear some honest opinions from experience, which type or model of headphone amp drove TH900 with great synergy. For example, solid state/OT-tube/OTL-tube/hybrid amp? Any particular company and model? Spec-wise, TH-900 has an impedance of 25 ohm, sensitivity of 100 dB/mW, and maximum input of 1800 mW. Now I know some people say they can tell what kind of amp would work great with a particular headphone simply by looking at its specs (impedance, sensitivity, etc.), and I know it's partly true, but we all know not everything works in perfect theory when it comes to headphone and amp matching. Any input would be greatly appreciated.