With the HD-800 i prefer fat OTL tube amps and with HD-800S i prefer fat solid state amps  

The L-700/500 are better than HD-800 both are more honest to tone, i like the L-500 most with 252s, actually the 252s is a killer amp very open dynamic and musical with better bass definition than 353x.The L-500 is a little bit strident with 353x but perfect with 252s.The L-500 is more balanced...

Have been comparing Stax 252s with L-700 and L-500 and SRM -353X amp.I use the 252S with Plixir or use it with voltage regulator, the result is interesting because the 252x wins everytime over 353x.I prefer the combo 252x/l-500 most of the time because it's clearer and more open and has bigger...

Having been rolling Stax amps and found the cleanest and best Stax amp is SRM-252S with the Plixir symmetrical power supply.   This amp was best with vintage Lambdas and SR-009.The 252s is ultra clean with wide soundstage and excellent dynamics with Plixir, it's just unbelievable , i compared...

Could you please send me PM i will buy the Sigmas

Quote:   Quote:   Spitzer are you real or just an avatar of Gilmore behind a proxy? I can't believe you exist, you are a kind of echo of him Regards Rudi Stor   Dear Spritzer  from a distance objective view this is not healthy .

http://www.youtube.com/watch?v=8hVhWwLVn3o&feature=player_embedded like no other headphone......and if you compare it directly you hear huge difference...... very promising news from Ultrasone