Stellar · AC regenerator

Stellar™ PowerPlant 3

New voices, new harmonics and a renewed sense of musicality.

$2,999

Save up to $750 with a trade-in.

Options

Buy or audition near you

All dealers

30-day in-home trial

The PS Audio Home Experience

Try it risk-free for 30 days in your own system. Love it or return it.

Designed for sources and small systems

  • Output 300 W · 900 W peak
  • Outlets (US) 6
  • Wall input Standard 15 amp
  • Screen None. Remote control

What reviewers say

What really matters is that it can transform – yes, transform – the sound from source components, DACs and headphone amplifiers. Wow.

HHi-Fi NewsKeith Howard, 2020

The value-priced Stellar PowerPlant 3 is without a peer

FFuture AudiophileBob Barrett, 2023

The PS Audio Stellar Power Plant 3 delivers an immediate and easily noticeable improvement in overall sound quality.

HHome Theater ReviewDylan Seeger, 2019

Why choose it

Regenerated power, sized for your sources

300 watts of continuous regenerated power, 900 watts peak, for sources and small systems. Six outlets, and overbuilt surge and spike protection.

Where it fits

The P3 is the perfect companion for improving system performance and ensuring a safe environment for you Hi-Fi system. Providing 300 watts of continuous power output and peaks of 1000 watts, the P3 is just right for source gear or an entire systems running small to medium class AB amps or larger high-efficiency Class D amps like the Stellar M700 monoblocks. The P3 will bring forth all that's possible from your HiFi system, ensuring you get the same great performance every time you listen.

Design

How it's built

The Stellar P3 PowerPlant features an ultra-low impedance analog AC power amplifier, pure DSD FPGA based analog sine wave regenerator, and low distortion high-dynamic-peak-capable outputs found only in PS Audio PowerPlants. Designed with elegant simplicity in mind, the P3 is a plug and play device that will provide you with perfect power and worry free protection from surges, spikes, and ugly power without any fuss.

Read the full design story

The Stellar P3 PowerPlant features an ultra-low impedance analog AC power amplifier, pure DSD FPGA based analog sine wave regenerator, and low distortion high-dynamic-peak-capable outputs found only in PS Audio PowerPlants. Designed with elegant simplicity in mind, the P3 is a plug and play device that will provide you with perfect power and worry free protection from surges, spikes, and ugly power without any fuss. Regulate, remove distortion, and get better performance.

300 W
continuous
900 W
peak
6
US outlets
3x
lower impedance than the P5

01

Overview

The Stellar P3 PowerPlant takes your incoming AC power and converts it to DC, similar to what comes out of a battery, and then, with patented PS Audio technology, regenerates and produces new sine-wave-perfect, regulated, high-current AC power. In the process of regeneration, any problems commonly found on your power line, such as low voltage, distorted waveforms, sagging power, flat-topping, and noise are eliminated.

Read more

The Stellar P3 PowerPlant takes your incoming AC power and converts it to DC, similar to what comes out of a battery, and then, with patented PS Audio technology, regenerates and produces new sine-wave-perfect, regulated, high-current AC power. In the process of regeneration, any problems commonly found on your power line, such as low voltage, distorted waveforms, sagging power, flat-topping, and noise are eliminated. The input voltage to the PowerPlant is fully protected by state-of-the-art clamping devices and the output is fully regulated so even large voltage swings that would normally damage connected equipment are made safe by either clamping or regulating. With your system powered directly from the ouput of the Stellar P3, dynamics and openness are breathtaking. New voices, new harmonics, and a renewed sense of musicality are yours the moment the P3 starts up.This is one of the most important pieces of audio equipment you can own, building a firm and reliable foundation for your system that will serve you for years to come. Not suited for class A or A/B amplification in 220V models.

02

Output

The P3 takes in your home's noisy, distorted, and unregulated AC and outputs pure and perfect power that dramatically enhances sound quality. It does this by rebuilding the AC, lowering output impedance, and regulating the voltage.

Read more

The P3 takes in your home's noisy, distorted, and unregulated AC and outputs pure and perfect power that dramatically enhances sound quality. It does this by rebuilding the AC, lowering output impedance, and regulating the voltage. Low output impedance is critical to maintaining a dynamic presentation. Powering equipment through a passive power conditioner only worsens the problem and should be avoided. The Power Plant, on the other hand, has such low output impedance (0.008Ω vs. typical 0.4Ω) that even the hungriest of amplifiers won’t be starved for clean AC power. When your amp is asked to produce loud orchestral levels, you want to make sure it has all the power it needs and only a Power Plant provides a constant output regardless of the dynamic demands of equipment or your neighbors. Power Plants also generate new waveforms that enhance the capabilities of your equipment. MultiWave extends the peak charging time of the sine wave so connected equipment has more energy storage and less power supply ripple. The results are dramatic: a bigger more musically accurate soundstage than with a simple sine wave.

03

Protection

An electrical surge, or spiked transient, is an intense, short-duration voltage increase that travels through electrical wiring in our homes. It can severely damage connected equipment.

Read more

An electrical surge, or spiked transient, is an intense, short-duration voltage increase that travels through electrical wiring in our homes. It can severely damage connected equipment. Shielding devices from these potential electrical problems is mandatory if we're to protect our investment and ensure the safety of our homes. These electrical transients are not the only potentially damaging problems faced by our sensitive audio systems. There are also sustained over-voltage conditions that many surge suppression devices will not be able to protect equipment from. Owners who have invested in a Power Plant can rest assured their connected equipment will be safe from any power line event such as over voltage, under voltage, surges, spikes and potentially threatening problems. The input voltage to the Power Plant is fully protected by state-of-the-art clamping devices and the output of the Power Plant is fully regulated so even large voltage swings that would normally damage connected equipment are made safe by either clamping or regulating. In most cases, connected equipment enjoys the protection and performance benefits of fully regulated power, even under extreme circumstances.

Features

At a glance

  • Built in boulder
  • 300 watts continuous output
  • 500 watts short-term output
  • 900 watts peak output
  • 1000 watts filtered output
  • 3x lower impedence than p5 power plant
  • 6x outlets US
  • 15amp AC input US
  • Range 95 – 145 vac US
  • 4 eu/au/gr/uk outlets
  • 10amp AC input eu/au/gr/uk
  • 230 volt regulated eu/au/gr/uk
  • Range 200 –285vac eu/au/gr/uk
  • 100% regenerated AC

Specifications

Full specifications
Environment SpecificationU.S./Japan / Europe/Asia
LocationIndoor use only / Indoor use only
Duty CycleSuitable for continuous operation / Suitable for continuous operation
Moisture SensitivityNot sealed against moisture / Not sealed against moisture
Operating Humidity<80%rh / <80%rh
Storage Temperature-40C to +40C / -40C to +40C
Operating Temperature0C to 40C / 0C to 40C
Electrical Supply Nominal RatingUS - 120V 15A 60Hz JP - 100V 15A 50/60Hz / 230V 10A 50/60Hz
Instrument SpecificationU.S./Japan / Europe/Asia
Unit Dimensions17” W x 12” D x 3.25” H (43cm x 30.48cm x 8.255cm) / 17” W x 12” D x 3.25” H (43cm x 30.48cm x 8.255 cm)
Unit Weight31.4 lbs ( 14.24 kg) / 31.4 lbs ( 14.24 kg)
Shipping Dimensions22” x 17” x 8” (55.88cm x 43.18cm x 20.32cm) / 17” W x 12” D x 3.25” H (43cm x 30.48cm x 8.255 cm)
Shipping Weight39.4 lbs (17.87 kg) / 39.4 lbs (17.87 kg)
Nominal Input VoltageUS - 108 – 145 VAC JP - 85 – 125 VAC / 200 –270 VAC
Maximum Continuous LoadUS - 300VA JP - 300VA / 300VA
Maximum Peak Load (30 seconds)1000VA / 1000VA
Voltage Regulation<0.1% / <0.2%
Typical Output THD<0.3% / <0.3%
Output Impedance<0.008 ohm / <0.008 ohm
Efficiency @ 300VA>85% / >85%
Input Frequency45 – 65 Hz / 45 – 65 Hz
Energy Dissipation680J / 850J
Peak Current Surge60,000A / 60,000A
Max Surge Voltage6,000V / 6,000V
Clamp Level340V / 800V
DC TriggerNone / None
Standby Power Consumption25 Watts / 25 Watts

Compare

How it compares

P3This oneP12P15P20
Price$2,999$5,999$7,999$9,999
PowersSources and small systemsWhole system, medium to large ampsWhole system, more amp headroomWhole system, the largest amps
Output300 W · 900 W peak1,200 VA1,500 VA2,000 VA · 3,600 W peak
Outlets (US)681016
Wall inputStandard 15 ampStandard 15 ampStandard 15 amp15 or 20 amp
ScreenNone. Remote control4.3-inch color touchscreenColor touchscreen7-inch color touchscreen

Trade Up and Save

Save up to $750 on your Stellar PowerPlant 3

Your old gear is worth more than you think. PS Audio credits the full original retail value of what you trade, up to the limit, straight off your new purchase.

  1. Tell us what you have. Press Start your trade-in and list your gear. Nearly any working hi-fi component counts, from any brand.
  2. Pay the adjusted price. At checkout you are charged only the price after your credit. Our sales team reviews every trade within 48 hours.
  3. Send yours back. We email a return label number. You have 30 days to ship your trade.
Start your trade-in
The fine print

What we accept. Nearly any hi-fi make and model at component level: a preamplifier, power amplifier, DAC, phono stage, loudspeaker pair, turntable, headphones or CD transport. It must work and be in respectable cosmetic condition.

What we don't. Broken or non-working products, and most accessories, phono cartridges, power cables and interconnects. Exceptions can be made based on value.

Several items? Yes. Trade as many as you like, up to the credit cap. Use "Add another" on the Trade Up form.

Not sure it qualifies? Call 800-PSAUDIO (800-772-8346) or email sales@psaudio.com, and a real person will answer.

Reviews

More reviews

The PS Audio Stellar Power Plant 3 delivers an immediate and easily noticeable improvement in overall sound quality.

DDylan Seeger, Home Theater Review2019
Read the full review

PS Audio has a winner.

If you’re looking for clean power, there is no way to go wrong here.

WWill Wright, Positive Feedback2021
Read the full review

What really matters is that it can transform – yes, transform – the sound from source components, DACs and headphone amplifiers.

Wow.

KKeith Howard, Hi-Fi News2020
Read the full review

The sonic benefits to the Stellar Power Plant 3 are clear and palpable.

GGary Alan Barker, Headphone Guru2019
Read the full review

I can say it is the single best audio purchase that I’ve ever made…

FForum memberOwner · PS Audio forum · 2020
Read the full post

I hear space around instruments where before there was none.

Music has both energy and ease.

FForum memberOwner · PS Audio forum · 2020
Read the full post
Read all 8 reviews

The soundstage, already great, is wider, taller and deeper and with greater separation between instruments.

FForum memberOwner · PS Audio forum · 2025
Read the full post

The value-priced Stellar PowerPlant 3 is without a peer

BBob Barrett, Future Audiophile2023
Read the full review

Questions for a specialist?

We're happy to help with system matching and upgrades. Talk to a real person at 800-PSAUDIO, Monday to Friday, 8:30 to 5 Mountain Time, or email sales@psaudio.com.

Contact a specialist

Outside the US?

Buy or audition through an authorized PS Audio dealer in your country. Can't find one near you? Contact us directly.

Find your local dealer

Hear it in your own room

Stellar PowerPlant 3

$2,999

  • 30-day in-home trialThe PS Audio Home Experience. Love it or return it.
  • Save up to $750 with a trade-inCredit comes off the price at checkout.
Add to cartTrade up your gear and save
Silver
Skip to product information
Silver
href="/products/stellar-power-plant-3?variant=43692461031714" class="link" >Stellar PowerPlant 3

Stellar PowerPlant 3

$2,999.00
Shipping calculated at checkout.
Details
The Stellar P3 PowerPlant provides greatly improved performance and safety from just plugging into the wall socket, along with far better dynamics, more authoritative bass, and a much bigger, more open soundstage than any passive power conditioner on the market. Featuring overbuilt surge and spike protection, you can rest easy knowing your system is safe.
Home Audition

Get 30 days to listen to your Stellar PowerPlant 3 and see if you like it. If not, send it back.

Shipping

UPS Ground USA
FedEx International

The Stellar Power Plant 3 stands on the shoulders of giants.

Built as an evolution from our renowned P12, P15, and P20 the P3 is our most affordable regenerator – perfect for powering sources and small to medium systems.

Power Plants generate sine-wave-perfect, regulated, high current AC power from your home’s AC. Problems on your power line such as low voltage, distorted waveforms, sagging power, and noise are eliminated and the power quality enhanced.

The Stellar P3 PowerPlant provides greatly improved performance and safety from just plugging into the wall socket, along with far better dynamics, more authoritative bass, and a much bigger, more open soundstage than any passive power conditioner on the market.

Overview

The Stellar P3 PowerPlant takes your incoming AC power and converts it to DC, similar to what comes out of a battery, and then, with patented PS Audio technology, regenerates and produces new sine-wave-perfect, regulated, high-current AC power. In the process of regeneration, any problems commonly found on your power line, such as low voltage, distorted waveforms, sagging power, flat-topping, and noise are eliminated. The input voltage to the PowerPlant is fully protected by state-of-the-art clamping devices and the output is fully regulated so even large voltage swings that would normally damage connected equipment are made safe by either clamping or regulating. With your system powered directly from the ouput of the Stellar P3, dynamics and openness are breathtaking. New voices, new harmonics, and a renewed sense of musicality are yours the moment the P3 starts up.This is one of the most important pieces of audio equipment you can own, building a firm and reliable foundation for your system that will serve you for years to come. Not suited for class A or A/B amplification in 220V models.

Output

The P3 takes in your home's noisy, distorted, and unregulated AC and outputs pure and perfect power that dramatically enhances sound quality. It does this by rebuilding the AC, lowering output impedance, and regulating the voltage. Low output impedance is critical to maintaining a dynamic presentation. Powering equipment through a passive power conditioner only worsens the problem and should be avoided. The Power Plant, on the other hand, has such low output impedance (0.008Ω vs. typical 0.4Ω) that even the hungriest of amplifiers won’t be starved for clean AC power. When your amp is asked to produce loud orchestral levels, you want to make sure it has all the power it needs and only a Power Plant provides a constant output regardless of the dynamic demands of equipment or your neighbors. Power Plants also generate new waveforms that enhance the capabilities of your equipment. MultiWave extends the peak charging time of the sine wave so connected equipment has more energy storage and less power supply ripple. The results are dramatic: a bigger more musically accurate soundstage than with a simple sine wave.

Protection

An electrical surge, or spiked transient, is an intense, short-duration voltage increase that travels through electrical wiring in our homes. It can severely damage connected equipment. Shielding devices from these potential electrical problems is mandatory if we're to protect our investment and ensure the safety of our homes. These electrical transients are not the only potentially damaging problems faced by our sensitive audio systems. There are also sustained over-voltage conditions that many surge suppression devices will not be able to protect equipment from. Owners who have invested in a Power Plant can rest assured their connected equipment will be safe from any power line event such as over voltage, under voltage, surges, spikes and potentially threatening problems. The input voltage to the Power Plant is fully protected by state-of-the-art clamping devices and the output of the Power Plant is fully regulated so even large voltage swings that would normally damage connected equipment are made safe by either clamping or regulating. In most cases, connected equipment enjoys the protection and performance benefits of fully regulated power, even under extreme circumstances.

What owners and reviewers say

The PS Audio Stellar Power Plant 3 delivers an immediate and easily noticeable improvement in overall sound quality.
Dylan Seeger, Home Theater Review · Read full review
PS Audio has a winner. If you’re looking for clean power, there is no way to go wrong here.
Will Wright, Positive Feedback · Read full review
What really matters is that it can transform – yes, transform – the sound from source components, DACs and headphone amplifiers. Wow.
Keith Howard, Hi-Fi News · Read full review
The sonic benefits to the Stellar Power Plant 3 are clear and palpable.
Gary Alan Barker, Headphone Guru · Read full review
I can say it is the single best audio purchase that I’ve ever made…
Scott (scott.rex), PS Audio Forum (owner) · Read full review
I hear space around instruments where before there was none. Music has both energy and ease.
cxp, PS Audio Forum (owner) · Read full review
The soundstage, already great, is wider, taller and deeper and with greater separation between instruments.
Nick (Palouse), PS Audio Forum (owner) · Read full review
The value-priced Stellar PowerPlant 3 is without a peer
Bob Barrett, Future Audiophile · Read full review

Trade up to it

You do not have to have bought from us before, and it does not have to be ours. Trade in almost any component from any brand and we credit its full original retail value against this one — up to a per-component cap that appears the moment you start a trade. See what yours is worth.

Hear it first

Every piece comes with a 30-day in-home trial. PMG Signature pieces get 60 days, with return shipping on us.

Not for sale

We build these in Boulder, Colorado, and we are glad to show our work. Paul answers questions on video most weekdays, and the factory is open to visitors.

Stellar PowerPlant 3

At home

Where it disappears into the music.

Try it at home $2,999.00
Take it home

Overview

The Stellar P3 PowerPlant takes your incoming AC power and converts it to DC, similar to what comes out of a battery, and then, with patented PS Audio technology, regenerates and produces new sine-wave-perfect, regulated, high-current AC power. In the process of regeneration, any problems commonly found on your power line, such as low voltage, distorted waveforms, sagging power, flat-topping, and noise are eliminated. The input voltage to the PowerPlant is fully protected by state-of-the-art clamping devices and the output is fully regulated so even large voltage swings that would normally damage connected equipment are made safe by either clamping or regulating. With your system powered directly from the ouput of the Stellar P3, dynamics and openness are breathtaking. New voices, new harmonics, and a renewed sense of musicality are yours the moment the P3 starts up.This is one of the most important pieces of audio equipment you can own, building a firm and reliable foundation for your system that will serve you for years to come. Not suited for class A or A/B amplification in 220V models.

Output

The P3 takes in your home's noisy, distorted, and unregulated AC and outputs pure and perfect power that dramatically enhances sound quality. It does this by rebuilding the AC, lowering output impedance, and regulating the voltage. Low output impedance is critical to maintaining a dynamic presentation. Powering equipment through a passive power conditioner only worsens the problem and should be avoided. The Power Plant, on the other hand, has such low output impedance (0.008Ω vs. typical 0.4Ω) that even the hungriest of amplifiers won’t be starved for clean AC power. When your amp is asked to produce loud orchestral levels, you want to make sure it has all the power it needs and only a Power Plant provides a constant output regardless of the dynamic demands of equipment or your neighbors. Power Plants also generate new waveforms that enhance the capabilities of your equipment. MultiWave extends the peak charging time of the sine wave so connected equipment has more energy storage and less power supply ripple. The results are dramatic: a bigger more musically accurate soundstage than with a simple sine wave.

Protection

An electrical surge, or spiked transient, is an intense, short-duration voltage increase that travels through electrical wiring in our homes. It can severely damage connected equipment. Shielding devices from these potential electrical problems is mandatory if we're to protect our investment and ensure the safety of our homes. These electrical transients are not the only potentially damaging problems faced by our sensitive audio systems. There are also sustained over-voltage conditions that many surge suppression devices will not be able to protect equipment from. Owners who have invested in a Power Plant can rest assured their connected equipment will be safe from any power line event such as over voltage, under voltage, surges, spikes and potentially threatening problems. The input voltage to the Power Plant is fully protected by state-of-the-art clamping devices and the output of the Power Plant is fully regulated so even large voltage swings that would normally damage connected equipment are made safe by either clamping or regulating. In most cases, connected equipment enjoys the protection and performance benefits of fully regulated power, even under extreme circumstances.

Recommended products

Specifications

Environment Specification

U.S./Japan

Europe/Asia

Location Indoor use only Indoor use only
Duty Cycle Suitable for continuous operation Suitable for continuous operation
Moisture Sensitivity Not sealed against moisture Not sealed against moisture
Operating Humidity <80%rh <80%rh
Storage Temperature -40C to +40C -40C to +40C
Operating Temperature 0C to 40C 0C to 40C
Electrical Supply Nominal Rating US - 120V 15A 60Hz
JP - 100V 15A 50/60Hz
230V 10A 50/60Hz

Instrument Specification

U.S./Japan

Europe/Asia

Unit Dimensions 17” W x 12” D x 3.25” H (43cm x 30.48cm x 8.255cm) 17” W x 12” D x 3.25” H (43cm x 30.48cm x 8.255 cm)
Unit Weight 31.4 lbs ( 14.24 kg) 31.4 lbs ( 14.24 kg)
Shipping Dimensions 22” x 17” x 8” (55.88cm x 43.18cm x 20.32cm) 17” W x 12” D x 3.25” H (43cm x 30.48cm x 8.255 cm)
Shipping Weight 39.4 lbs (17.87 kg) 39.4 lbs (17.87 kg)
Nominal Input Voltage US - 108 – 145 VAC
JP - 85 – 125 VAC
200 –270 VAC
Maximum Continuous Load US - 300VA
JP - 300VA
300VA
Maximum Peak Load (30 seconds) 1000VA 1000VA
Voltage Regulation <0.1% <0.2%
Typical Output THD <0.3% <0.3%
Output Impedance <0.008 ohm <0.008 ohm
Efficiency @ 300VA >85% >85%
Input Frequency 45 – 65 Hz 45 – 65 Hz
Energy Dissipation 680J 850J
Peak Current Surge 60,000A 60,000A
Max Surge Voltage 6,000V 6,000V
Clamp Level 340V 800V
DC Trigger None None
Standby Power Consumption
25 Watts
25 Watts