Regenerator, Balanced Power, or Power Cleaner?


I'd like to take advantage of your experience.

Which type of power conditioner would you recommend:
Regenerator, Balanced Power, or Power Cleaner?

I have a Porter Outlet and measured it at several times of the day and night and the voltage consistently ranges 120 to 121 V

My system is a Toshiba Lap top w/ J River, W4Sound DAC, NAD C 356 Integrated Amplifier and Vienna Acoustic Beethoven Baby Grand. I rarely use the CD Player.

I'm planning gradually evolve to a First Watt amp with High Efficiency Speakers, CAPS Computer and near field listening.
I live in an apartment and will continue to live in apartments for the future

I'm primarily interested in Chamber Music.

I could spend about $2000 used if the sound quality improvement was significant.

Any thoughts would be very welcome
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I have an APC S10, and it is among the best audio purchases I've ever made. My entire system is plugged into it, it is absolutely quiet, and it works reliably and exactly as advertised. I happen to have a First Watt M2, and the APC "saves" it and my Spendors from severe power surges and brownouts on a weekly basis (my power here in Ft. Lauderdale is horribly unreliable). Before spending big $$, I encourage you to look for either an S10 or S15…you will be thrilled at the purchase. BTW, I could only find the silver face plate model (hate silver gear), so I (painstakingly) sprayed mine flat black.
I bought a PS Audio P300 Regeneratgor after the rave reviews in the late 1990s and liked it so much I bought another one, because these early models didn't handle many components, especially not power amplifiers. When Paul McGowan introduced the current line (P10, P5 and later the P3), I bought a P10 at list price -- then $4495 -- without a qualm and without waiting for reviews. This beast handles my SET monoblocks, linestage and all my source gear and helps provide what I'd call "full bodied transparency." I wouldn't be without it.
I prefer my Pass amp and preamp plugged directly into wall, and sources run through a BPT balanced power
Thank you for the response.

Balanced power and regenerators seem be preferred over conditioners. Of course, as I understand their function, the balanced power effectively shunts noise to the neutral conductor. I'm not sure about the regenerators. I believe they are basically dedicated oscillators at 60 hz. Perhaps that effectively filters any noise.

But of course, there are numerous threads about power conditioners, regenerators, etc degrading the sound quality.

Balanced Power: 3 votes
BPT balanced power

Regenerator: 2 volts
Purepower+ 1500 regenerator
PS Audio P300 (Regenerator and Balanced power)

Surger Protector: 1 vote
APC S10

Conditioner - 0 votes
I use an isolation transformer in series with a power power conditioner and power regenerator.