Audiophile Electrician - Part 4 - Power at an Audiophile Dealership

A lot of audiophiles worry about power delivery only when it applies to the last 6 feet via a power cord.
Some may use power conditioners with limited success. Others claim to be off the grid via batteries, but inverters in those devices add noise, can't power amps and often aren't isolating the gear from each other... among many other issues with batteries degrading and inconsistency.
Nevertheless, many find focusing on the last 6 feet worthwhile.
This video deals with power delivery on the other side of the wall where you could argue it's much more important... not just for performance... but for safety and reliability.
Nothing will guarantee an improvement since everybody's situation and gear is different. However there's a great case to be made for exploring things up to your breaker, dedicated lines and proper grounding to ensure optimal performance and safety before you even turn on gear.
In many cases, you can eliminate ground loops and noise that's easily audible and measureable, so I've brought you guys an audiophile electrician who looks at things beyond the minimum standards of electricians.
In part 4, we showcase a local dealership - 3mA Audio. Rex takes a look at the existing wiring and makes some changes to improve resistance on the ground for the audio subpanel.
For various recommended gear and vendors see my website at audiophilejunk...
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[@sevestan]

nice torque wrench

[@56ctconger]

Why do you not Dexit the A and B buss bar where the breakers connect? They really seem to oxidize in Houston.

[@AudiophileJunkie]

He used it everywhere

[@alphamoleliza6749]

What was the difference in the resistance after he moved the neutral?

[@AudiophileJunkie]

He moved it to the exact same point so there are no longer 2 different points to compare. He was showing the resistance to the point where it WAS.
If changed any wire or material between the two points, then he could measure the reduction of resistance, if any. However, he moved them to the same lug such that there are no differences in points to compare now.