Hi Hart,
 
I am using the LS3/5A speakers and am ‘AMAZED’ at the sound. I didn’t think the BYOB would be able to do them justice but found it could drive them without any problems and never seem to be straining. I don’t listen very loud and it is a small room but I can truthfully say I never felt the little BYOB was ever in danger of being overmatched.
 
I replaced an EL34 integrated amplifier (I sold it) with the BYOB and from the first note I knew the EL34 amp was history. The BYOB had better resolution, bass (what there was, remember, LS3/5a’s) and sheer musicality. I called my wife downstairs to listen to my new toy (I NEVER do that) and, in typical wifely fashion she was totally unimpressed. If I told her I spent one thousand dollars on that little piece of wood she would have started proceedings to have me committed. Even I look at that amp and say “you’re nuts" but then I turn it on and play some music and I feel like a genius.
 
It is such an entirely functional piece of equipment that I wouldn’t want to add anything to it. No covers, extra inputs, nothing. In fact, I don’t even like the light.  As for whether it sounds tubey, or transistor like, I couldn’t say. Just turn it on and play some music and those distinctions just don’t seem to matter.
 
Now if I could only get my hands on a BYOB phono stage…..
 
Looking forward to seeing you in NYC

Mike

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This is a review of the Altmann BYOB Amplifier, Attraction DAC, Creation ADC, Altmann Phono Stage, , BYOB Speaker System, Altmann Acoustic Panel, Altmann UPCI (Ultra Precision Clock Injector) or Altmann JISCO (Jitter Scrambling Decorrelator).