Audio Tweak specialises in Stereo amplifiers. For finesse and musicality we recommend the tube-based Linear Tube Audio ZOTL amplifiers, for solid-state amplification if you desire tube-like musicality and sweetness without the maintenance of tubes, the Wells amplifiers are the sweetest yet offer adequate current for reasonably difficult loads speakers, for your first entry into tube amplifiers if budget is a constraint we recommend Jolida amplifiers. Your choice must be determined on the basis of what speakers you want to drive not to mention the size of your room. For challenging speakers to drive (below 83DB and below 3Ohms) we recommend the Sanders Magtech amplifier which is even capable of driving half an ohm without flinching.