well phrased.
The stock ST/STX with the stock JRC2114D opamps has emphasized bass already.
The only other issue I can think of is that because the JVC is relatively low impedance its not getting enough current, since the ST/STX is made for higher impedance headphones.
This is the case with my Denons, however it does not lack quantity, just quality. In the Denons case anyway.
So again.
































