Removal of plug/wall outlet - hard connection ?

Stehno,
Thank you. I am truly convinced that the poorest connection in my entire stereo system is PC plug/receptacle connection.
I know by removing plug/duplex does not clean/condition the 120VAC 60HZ, but makes an airtight solid connection.

Hard wiring the Romex directly to the amp results in the poorest sound quality, the PC must be in the circuit which generates the best sound quality.

It is not possible to redo my dedicated lines with the materials you suggest.

Yes, I agree about the safety/code aspects, but I have found another way to acheive a connection that is extremely close to hard wiring.
I have made up a device that secures 2 pcs of the 079 Oyaide 15 amps plugs together, hardwired both to my PC and plugs into both outlets on the Oyaide GX duplex. The dual plugs are vertically supported and secured by a pc of wood going down to the floor and strapped horizontal to minimize movements.
This have doubled surface area electrical connections and sounds very close to the hardwired version.
The front end componets generate a lesser degree of improvements than the power amps.

thx Terry

"bass notes have gained another octave"

I agree that removing physical connections for hardwired/soldered ones can improve things, but at least keep your stated improvements factual.
Bass notes can't gain another octave unless they're played another octave down originally, or by slowing the audio source down a full octave. Get a music dictionary.

Carl109, generally when somebody mentions something like bass notes have gained another full octave, some-to-many of us assume that what they are describing is existing and unchanged bass notes already embedded in the medium have become more well-defined during playback and therefore, as in this case, seem to sound deeper, tighter, and perhaps a bit more accurate.

Hence, explanations such as yours or mine here are usually not necessary. In fact, I would think it extremely unusual for a reader to interpret that statement the way you apparently did.

-IMO

Stehno, I know what you're saying. It's just that I interpreted the statement about "gaining another octave" as per the English language (ie 12 semitomes below the original note).
I've been a bassist for 20 years and my wife has a B.Mus Degree, so I get a little tired of a small number of A'goner's who use confused terminology when glowingly describing system sound or improvements.
If we just describe what we hear (for example, "bass notes gained more definition" or "lower frequencies gained strength and prominence") then everyone will be able to imagine what the writer is describing.

I should also be able to spell "semitones"! Lucky I'm a better bass player than I am typist...