I just put in a directed line with 10 gauge Romex cryo to a TeslaPlex and attached the A21. The entire presentation changed in my system. The detail and clarity is simply amazing in the system. Everything is more distinctive. The sound is less warm and could be considered bright; but perhaps that is what happens when you get substantially more detail in the music. Anyways a very, very dramatic change to say the least for only $300 ($100 for the TeslaPlex and $200 for the Romex)in parts and using the stock power cord.
