Is it possible a 20 amp outlet can make a big difference in SQ?


This is a somewhat rhetorical question, but I'm interested if anyone has a similar experience, or can explain why...

I have one duplex outlet to power everything. I assumed it was 15 amp so a few months ago I replaced the outlet with a hospital grade 15 amp outlet. (fwiw there are 4 wires, 2 white 2 black). My tube amp is plugged directly into the wall.

On Friday the air-con went out so I had a reason to check the fuse box - and realized that the circuit powering my AV is 20 amp.

So I replaced the outlet with the same brand and grade but 20 amp. 

I was surprised that there was a significant change in SQ - I'd say dynamics are faster, more detailed, more powerful. 

If I'd spent $500 or more I'd factor in the mental bias but I spent $20 and expected nothing.

Am I imagining this?

Any thoughts? 

macg19

Showing 6 responses by macg19

@carlsbad

No, I did not change the power cord at the same time.

I did not change any of the breaker switches - most are 20 amp.

Note I rent the house - I mention that to explain why I wasn’t super familiar with the breaker box.

Now that you mention it - it is possible the previous 15 amp outlet was improperly installed - this was in Dec - I was trying to do way too much after back surgery - so that could be it.

In any case, glad I found a reason to rectify the issue whatever it was...and for sure there is a lesson here:)

Thanks Jerry

@lak Note you tagged a different AG member...anyway, I don't know what gauge the wiring is. I can only assume the house is wired to code - the majority of the breakers are 20 amp. 

@erik_squires this was my understanding but I thought the 20 amp outlet may allow a bit more current. Maybe, maybe not.

Not going to tear the 15 amp apart - at this point I'm happy that the new outlet is properly installed maybe the old one was not - and after a lot more listening, for sure there is major improvement in SQ.  

@carlsbad2 @steakster Both outlets I used have back wire and side wire options. The back wire option is NOT a spring loaded push in - I read up on this - the spring loaded/quick connect option is not recommended.

I did use the back wire connection. I cut the bare wire to length according to the guide on the back of the outlet, sanded the bare wire, then pushed the screws all the way in which fully opens the clamp, then tightened the screws. The connections are solid, no bare wire exposed, no electrical tape used.