"Oxidized" ( Affected by - Air ) - wires are EVIL !!
Oxidize Definition :-
" to undergo or cause to undergo a reaction in which electrons are lost to another species"
THE SOLUTION - NO WIRES IN THE SOUND STAGE
All wires OXIDIZE , ALL..cheap wires oxidize in less than three months , then resistance increases,
sound degrades, and the electrons meet resistance , your sound system just sounds worse.
Your amp is sonically dying from the day it is made, with cheap wires inside but..
You wont notice it , it just gradually gets worse
The OA21 DNA Solution ... A Unique Design, an all on one PCB,
100 % signal is on a Single PCB, Manufactured with 2oz pure oxygen free copper