DoukAudio D2 Linear Power Supply 5V
4.5Editor score
Dual USB and DC outputs
Toroidal transformer with CLC filter
Low ripple microvolt design
In this guide
Linear power supplies are essential for high fidelity audio systems that demand clean stable energy. They reduce noise and ripple that switching adapters often introduce into sensitive circuits. Choosing the right unit ensures your DACs amplifiers and streamers perform at their peak potential.
We evaluated ten top rated models based on their internal components noise performance and build quality. Our analysis focuses on transformer type capacitor quality regulation architecture and output stability. Each product offers unique strengths tailored to different audio setups and budgets.
Each pick highlights key features pros and cons to help you make an informed decision. Prices and availability change frequently so check current listings before purchasing. This guide provides the detailed insights you need to upgrade your audio power foundation today.
Top 3 Picks for Best Linear Power Supplies for Audio
Fosi Audio PSU20 Ultra Low Noise Linear Power Supply for Hi-Fi Audio
4.0Editor score
Selectable 5V 12V 15V outputs
Independent isolated outputs for clean audio
Built in overheat and overvoltage protection
FiiO Darkside PRO Audiophile Linear Power Supply with 75W Toroidal Transformer, 12V/15V 3A Output for DACs and Amplifiers (Black)
5.0Editor score
75W custom low noise transformer
Fully discrete NMOS regulation circuit
Relay switched 12V 15V output
Top 10 Best Linear Power Supplies for Audio in 2026 Compared
This table provides a side-by-side overview of the top linear power supplies evaluated in this guide. Compare key specifications and features to find the model that best fits your audio system requirements.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Fosi Audio PSU20 Ultra Low Noise Linear Power Supply for Hi-Fi Audio
80W toroidal transformer 100W peak
Selectable 5V 12V 15V outputs
Independent isolated rectification and filtering
High ripple low 0.1mV performance
4.0Editor score
Editor's Choice
Douk Audio D2-PRO Power Supply: 12V Low-Noise Linear DC Adapter
35W dual DC output capability
28 microvolt RMS ripple noise
Sealed toroidal transformer design
LDO regulator for stable output
Best Budget
DoukAudio D2 Linear Power Supply 5V: 15W Low Noise Regulated PSU for DAC Preamp Streamer with Toroidal Transformer CLC Filter HiFi Desktop Audio System
15W low noise regulated output
Dual USB and DC ports
Custom sealed toroidal transformer
CLC architecture filtering design
4.5Editor score
25W DC 12Volt Linear Power Supply Ultra Low Noise for HIFI Audiophile,Desktop Power Adapter Regulated converter 12V 1.5A
25VA sealed toroidal transformer
12V 1.5A max current output
Precision reference and op-amp circuit
Full aluminum case heat dissipation
4.6Editor score
Linear Power Supply, TL431 Linear Regulation for DAC Streamer NAS Router Mac mini
TL431 precision voltage reference
Custom 50VA pure copper R-Core transformer
Dual GX16-2 DC output ports
Nichicon FW audio-grade capacitors
5.0Editor score
LHY Audio Linear Power Supply: 12V 50W Ultra Low Noise Regulated PSU for DAC Preamp Amplifier CLC Filter MOSFET Stabilization Home HiFi Audio System Audiophile Use (LPS50)
50W ultra low noise output
Triple-stage CLC filtering design
MOSFET stabilization circuit
Japanese core transformer windings
Topping P50 Linear Power Supply – 5V 1A and 15V 1A Ultra Low Noise for HiFi Audio Topping D50III/DX3 Pro+/E50/A50III
115V 230V global voltage support
10000uF capacitors on 15V module
TPS7A4700 ultra low noise regulators
Sealed toroidal transformer with EMC suppression
4.4Editor score
FiiO Darkside PRO Audiophile Linear Power Supply with 75W Toroidal Transformer, 12V/15V 3A Output for DACs and Amplifiers (Black)
75W low noise transformer
Fully discrete NMOS regulation
Dual MOSFET parallel output stages
Relay switched voltage switching
5.0Editor score
HiFi Low Noise Linear Power Supply DC19V 4.2A LPS for Audio DAC Amp Router
DC19V 4.2A output capability
Fully discrete topology design
Noise less than 13 microvolts
Series regulator for precision
5.0Editor score
TOPPING P50 Linear Power Supply for HiFi Audio – Ultra Low Noise, CNC Unibody, Perfect Compatible with D50III/D50s/DX3,Pro+/E50,Global Voltage Support (Black)
CNC unibody design aluminum
Sealed toroidal transformer low leakage
8000uF capacitors on 5V module
10000uF capacitors on 15V module
4.4Editor score
1. Fosi Audio PSU20 – Best Overall Linear Power Supply for Audio
Fosi Audio PSU20 Ultra Low Noise Linear Power Supply for Hi-Fi Audio
80W toroidal transformer
0.1mV ripple noise
Dual DC and USB outputs
Selectable voltage outputs
The Fosi Audio PSU20 stands out as a comprehensive linear power solution for modern desktop audio systems. With a rating of 4.0 stars it balances performance and versatility effectively. Its standout quality lies in the ability to power multiple devices independently without introducing ground loop noise.
Pros
- Independent isolated outputs
- High ripple low performance
- Multiple voltage selections
- Strong overheat protection
- Clean integrated design
Cons
- Fan may be audible in quiet rooms
- Limited to lower voltage devices
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Inside this unit sits a custom 80W toroidal transformer delivering up to 100W peak power. The ripple noise is suppressed to as low as 0.1mV thanks to premium Nippon Chemi-Con capacitors and TI linear regulators. Independent rectification and filtering for each output ensure that your DAC streamer and headphone amp receive pure power.
While the PSU20 performs exceptionally well the silent cooling fan may still be audible in extremely quiet listening environments. Additionally it is designed for lower voltage devices so it may not suit high power amplifiers requiring higher current. These trade-offs are acceptable given the price point and feature set.
This power supply is ideal for audiophiles who want a centralized clean power hub for DACs and streamers. If you value stability and organization in your setup the PSU20 is a strong recommendation. It pairs seamlessly with other Fosi components for a cohesive aesthetic.
Independent Isolated Outputs
Each output features fully isolated grounds eliminating cross contamination and ground loop noise between connected devices.
Multiple Voltage Options
Selectable 5V 12V and 15V outputs provide broad compatibility with various audio components and digital devices.
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2. Douk Audio D2-PRO – Reliable Low Noise Performance
Douk Audio D2-PRO Power Supply: 12V Low-Noise Linear DC Adapter
35W dual DC output
28 microvolt RMS ripple
Sealed toroidal transformer
LDO regulator circuit
The Douk Audio D2-PRO offers a dedicated approach to low noise power for 12V audio components. It focuses on reducing ripple to 28 microvolts RMS under no-load conditions which is exceptional for its class. This makes it a strong candidate for sensitive DACs and digital streamers.
Pros
- Ultra low ripple design
- Dual output capability
- Sealed transformer reduces noise
- EMI suppression included
- Aluminum chassis shielding
Cons
- No variable voltage settings
- Ratings not specified in data
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Its low noise power architecture includes a sealed toroidal transformer and an LDO regulator to smooth DC output. The aluminum chassis helps with heat dissipation and shields against external interference. Dual DC outputs allow you to power two devices from a single clean source.
One limitation is that it lacks variable voltage outputs which limits flexibility compared to other models. The lack of specified ratings in the provided data also makes it harder to gauge user satisfaction objectively. However the technical specs suggest high quality performance.
Audiophiles with 12V systems will appreciate the cleaner background and smoother highs this adapter provides. It is best used in compact HiFi setups where space is limited. For stable daily use it delivers consistent regulated power effectively.
Ultra Low Ripple
Measuring only 28 microvolts RMS ripple ensures a clean power foundation for sensitive audio circuits.
Dual Output Flexibility
Dual DC outputs enable powering two devices simultaneously with consistent low noise supply.
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3. DoukAudio D2 – Best Value Linear Power Supply
DoukAudio D2 Linear Power Supply 5V
15W regulated output
Dual USB and DC ports
Toroidal transformer
CLC filtering
The DoukAudio D2 delivers exceptional value for those seeking a reliable linear power source for low voltage devices. With a 4.5 star rating it is highly regarded by users for its performance. Its standout quality is the microvolt level ripple suppression which improves transient response.
Pros
- Microvolt ripple suppression
- Dual USB and DC options
- Strong aluminum enclosure
- High rating user feedback
- CNC machining quality
Cons
- Lower power capacity
- Fixed voltage output
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Inside the CNC aluminum chassis is a custom sealed toroidal transformer paired with CLC architecture filtering. This combination minimizes interference and provides a stable regulated output. The dual output flexibility supports both USB and DC connections making it versatile for desktop audio.
The power capacity is limited to 15W so it may not support high current devices. Additionally it is fixed to 5V output which restricts compatibility to specific components. Despite this it remains a budget friendly option for basic upgrades.
For owners of entry level DACs and streamers this power supply is a cost effective upgrade. It improves detail retrieval and smooths treble by reducing switching noise. If you need a simple stable power source on a budget consider this model.
Dual Output Flexibility
Supports USB and DC outputs to power different device types from a single unit.
Aluminum Chassis Build
CNC aluminum enclosure enhances heat dissipation and shields against RFI EMI interference.
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4. 25W DC 12Volt – Reliable Audiophile Adapter
25W DC 12Volt Linear Power Supply Ultra Low Noise for HIFI Audiophile,Desktop Power Adapter Regulated converter 12V 1.5A
25VA transformer
12V 1.5A output
Precision reference circuit
Aluminum case
This 25W DC 12Volt linear power supply is designed specifically for HiFi audio applications. With a 4.6 star rating it indicates strong user satisfaction regarding sound quality and reliability. The standout quality is the use of a precision reference and high-speed op-amp for voltage regulation.
Pros
- Excellent HiFi performance
- Full aluminum case
- Precision op-amp circuit
- EMI high-current filtering
- Good heat dissipation
Cons
- Single output only
- Basic appearance
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It features a quality 25VA sealed toroidal transformer and a full aluminum case for durability. The ultra-low noise voltage regulation circuit helps promote better sound reproduction quality in your system. The output ports are standard 5.5/2.5mm connectors for broad compatibility.
One limitation is that it provides only a single output port limiting simultaneous device power. The design is functional but may lack premium aesthetics found in higher priced units. These are minor issues for the performance it offers.
Upgrading from a switching adapter to this linear supply will noticeably reduce electrical noise. It is well suited for DACs headphone amplifiers and digital transports requiring 12V power. If stability is your priority this model offers solid performance.
Precision Regulation Circuit
Ultra-low noise voltage regulation composed of precision reference and op-amp ensures stable output.
Aluminum Durability
Full aluminum case ensures durability and assists with heat dissipation during operation.
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5. PR2 Linear Power Supply – Precision Regulation
Linear Power Supply, TL431 Linear Regulation for DAC Streamer NAS Router Mac mini
TL431 reference
50VA copper transformer
Dual GX16 outputs
Nichicon FW caps
The PR2 Linear Power Supply is engineered specifically for audiophiles seeking exceptional stability. It holds a perfect 5.0 rating reflecting high customer satisfaction. Its standout quality is the precision TL431 voltage reference paired with discrete high-current transistor regulation.
Pros
- Exceptionally low noise
- Premium internal components
- High user rating
- Flexible voltage range
- Dual outputs shared
Cons
- Specific connector types
- Limited availability
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Inside it houses a custom 50VA pure copper R-Core transformer and Nichicon FW audio-grade capacitors. The advanced EMI and CLC filtering circuit achieves exceptionally clean power output. Dual GX16-2 DC ports allow powering two devices with shared current capacity.
The GX16 connectors may require specific cables or adapters which could add cost. The voltage range is flexible but must be selected correctly for your device. These constraints are acceptable given the high performance specifications.
This unit is ideal for DACs digital streamers and music servers that require pure power. It enhances detail retrieval and improves system stability significantly. For users who prioritize clean backgrounds the PR2 is an excellent choice.
Precision Linear Regulation
TL431 voltage reference and discrete transistors maintain stable voltage while minimizing interference.
Premium Internal Components
Nichicon FW capacitors and pure copper transformer ensure exceptionally clean power output.
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6. LHY Audio LPS50 – High Power Clean Output
LHY Audio Linear Power Supply: 12V 50W Ultra Low Noise Regulated PSU for DAC Preamp Amplifier CLC Filter MOSFET Stabilization Home HiFi Audio System Audiophile Use (LPS50)
50W power output
Triple-stage CLC filtering
MOSFET stabilization
Japanese core transformer
The LHY Audio LPS50 targets high end HiFi systems needing significant power reserves. It delivers a ripple level of 9 microvolts or less ensuring a quiet background for sensitive audio devices. The standout quality is the advanced triple-stage CLC filtering design.
Pros
- Ultra low noise output
- Triple CLC filtering
- Japanese transformer quality
- High power reserve
- Optimized for HiFi
Cons
- No specific user rating
- Higher cost bracket
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Its precision voltage regulation uses a reference regulator high-speed op amp and MOSFET stage. This maintains stable voltage under dynamic load for consistent audio performance. The Japanese core transformer with oxygen-free copper windings reduces electromagnetic interference effectively.
While the power reserve is high the cost is likely higher than entry level units. User ratings are not provided in the available data which limits feedback insights. However the technical design suggests superior stability.
Ideal for DAC preamps and amplifiers this unit improves overall system stability and dynamics. It is suited for audiophiles seeking maximum detail retrieval. If you need high power with ultra low noise this is a strong candidate.
Advanced CLC Filtering
Triple-stage CLC filtering suppresses high frequency noise and enhances sound clarity.
Premium Transformer Construction
Japanese core transformer with oxygen-free copper windings ensures efficient conversion and less EMI.
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7. Topping P50 – Optimized for Topping Gear
Topping P50 Linear Power Supply – 5V 1A and 15V 1A Ultra Low Noise for HiFi Audio Topping D50III/DX3 Pro+/E50/A50III
Global voltage support
TPS7A4700 regulators
10000uF capacitors
Sealed toroidal transformer
The Topping P50 Linear Power Supply is designed to match Topping audio gear perfectly. It supports 115V and 230V inputs making it ideal for global use. The standout quality is the use of TPS7A4700 ultra low noise linear regulators for high precision.
Pros
- Global voltage compatibility
- High power reserve
- High precision regulators
- Low leakage transformer
- Perfect for Topping DACs
Cons
- Specific to Topping brands
- Limited voltage options
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The 15V module includes over 10000uF capacitors while the 5V module has over 8000uF. This provides ample energy reserves for stable power delivery. The sealed toroidal transformer has small magnetic leakage and suppresses EMC and noise effectively.
It is optimized for specific models like D50III and DX3 Pro which limits broader compatibility. The two voltage options are fixed so you must check your device requirements carefully. These constraints make it a specialized tool for Topping owners.
Owners of Topping DACs and amplifiers will find this unit an excellent partner. It delivers ultra low noise and ensures high accuracy for analog circuits. If you use Topping equipment this power supply is a logical upgrade.
Excellent Power Supply
Designed as a excellent partner for DX3 Pro and E50/D50s series devices.
High Power Reserve
10000uF capacitors on 15V module ensure enough energy reserves for demanding applications.
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8. FiiO Darkside PRO – Best Premium High Power Unit
FiiO Darkside PRO Audiophile Linear Power Supply with 75W Toroidal Transformer, 12V/15V 3A Output for DACs and Amplifiers (Black)
75W toroidal transformer
NMOS regulation circuit
Dual MOSFET output
Relay switched voltage
The FiiO Darkside PRO is a premium audiophile linear power supply designed for high performance. It features a custom low-noise 75W toroidal transformer that handles demanding transient currents well. With a 5.0 rating it delivers deep bass and a spacious soundstage.
Pros
- Premium audiophile components
- High current capability
- Deep bass improvement
- Self-resetting protection
- Wide compatibility
Cons
- Premium price point
- Heavy chassis
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Its fully discrete NMOS regulation circuit with dual MOSFET parallel output stages ensures low output impedance. Premium components include ELNA and Rubycon capacitors and a silver-plated monocrystalline copper DC cable. These ensure cleaner power delivery and reduced noise effectively.
The premium price and rigid aluminum enclosure may be a consideration for budget buyers. It is heavy and requires space on a desktop. These trade-offs are justified for the superior performance and heat dissipation.
For serious audiophiles with demanding DACs and amplifiers this unit is a top choice. It integrates seamlessly with FiiO products but works with many devices. If you seek ultimate audio clarity invest in this premium model.
75W Low-Noise Toroidal Transformer
Designed to reduce interference while delivering deeper bass and more spacious soundstage.
Fully Discrete NMOS Regulation
Dual MOSFET parallel output stages achieve ultra-low noise operation and stable power output.
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9. HiFi Low Noise LPS – High Current 19V Option
HiFi Low Noise Linear Power Supply DC19V 4.2A LPS for Audio DAC Amp Router
19V 4.2A output
Fully discrete topology
13 microvolt noise
Series regulator
This HiFi Low Noise Linear Power Supply is a result of years of design focused on high reliability. It supports 19V at 4.2A which is essential for high current audio devices. The rating of 5.0 reflects excellent performance in real world use.
Pros
- High current capability
- Low impedance design
- Ultra-low noise
- High reliability
- Multiple voltage versions
Cons
- Specific to 19V devices
- Less common connector
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Its fully discrete topology and single pass series regulator design provide instrumentation level accuracy. Output noise is less than 13 microvolts even at maximum output. This ensures clean DC power with low drag and big dynamics.
It is optimized for 19V devices which may limit its use for standard 12V components. The specific requirements mean you must check manufacturer specs carefully. These are acceptable trade-offs for high performance users.
Ideal for high end DACs and routers needing high current stable power. The low impedance and fast response support better transient performance. For those requiring 19V this is a top tier solution.
Ultra-Low Noise
Output noise is less than 13 microvolts even at max 24VDC output ensuring pure power.
Linear Regulator
Fully discrete topology and series regulator design make it ideal for high-performance analog circuits.
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10. TOPPING P50 – Durable Unibody Design
TOPPING P50 Linear Power Supply for HiFi Audio – Ultra Low Noise, CNC Unibody, Perfect Compatible with D50III/D50s/DX3,Pro+/E50,Global Voltage Support (Black)
CNC unibody design
Global voltage support
High capacitor count
Sealed transformer
The TOPPING P50 Linear Power Supply is designed for superior HiFi audio performance. It features a CNC unibody design that enhances mechanical strength and durability significantly. With a 4.4 rating it ensures stable high-quality power for supported devices.
Pros
- Durable unibody build
- Global voltage compatibility
- Superior HiFi performance
- Anti-interference capability
- Perfect for Topping gear
Cons
- Higher cost
- Specific compatibility
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The sealed toroidal transformer provides reduced magnetic leakage and low noise. Global voltage support makes it ideal for worldwide use with 50/60Hz systems. Equipped with high capacitor counts it provides ample energy reserves for stable delivery.
The cost is higher compared to other adapters and it is best for specific Topping models. The unibody construction ensures improved anti-interference capabilities for stable operation. These are acceptable trade-offs for high-end stability.
Owners of Topping D50III and DX3 Pro+/E50 devices will appreciate this unit. It delivers stable ultra low noise power perfect for analog applications. If you need global compatibility this model is a strong fit.
Durable CNC Unibody Design
Precision-built from a solid aluminum block for enhanced anti-interference capabilities.
Global Voltage Compatibility
Supports both 115V and 230V inputs making it ideal for worldwide use.
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Buying Guide – How to Choose the Best Linear Power Supply for Audio
Choosing the right linear power supply involves considering several key factors to ensure optimal performance for your audio system.
Transformer Quality
The transformer is the heart of a linear power supply. Look for units with toroidal transformers as they have lower magnetic leakage and reduced noise compared to standard transformers. High quality windings and shielding help prevent electromagnetic interference from reaching your audio components.
Prioritize transformers with high power reserves to handle transient current demands without voltage sag.
Ripple and Noise Specifications
Low ripple and noise are critical for clean audio playback. Aim for a power supply with ripple noise measured in microvolts or millivolts such as 28µV or 0.1mV. Lower ripple ensures a darker background and clearer detail in your music.
Verify the manufacturer provides verified measurements under load to ensure real world performance.
Regulation Architecture
Voltage regulation determines how stable the output remains under varying loads. Look for units with precision references like TL431 or ultra low noise regulators such as TPS7A4700. Discrete transistor or MOSFET regulation often provides better performance than integrated solutions.
A robust regulation circuit minimizes distortion and ensures consistent voltage for sensitive components.
Output Configuration
Consider the number and type of outputs you need. Some units offer dual DC outputs or mix USB and DC options to power multiple devices. Ensure the connectors match your devices and that isolated grounds are present to avoid ground loop noise.
Check voltage selection options if you need to power different devices requiring various voltages.
Build Quality and Materials
Build quality affects durability and noise shielding. Aluminum enclosures offer better heat dissipation and electromagnetic shielding than plastic cases. Look for high quality internal components like audio grade capacitors and silver-plated cables for best signal integrity.
Solid mechanical construction also reduces vibration which can affect audio components in some cases.
Compatibility and Voltage
Ensure the voltage output matches your devices requirements exactly. Using higher voltage can damage components while lower voltage causes instability. Check your DAC amplifier or streamer specs for required voltage and current ratings before purchasing.
Some units offer selectable voltages which add flexibility for various setups and future upgrades.
Power Capacity
The total wattage should exceed the combined power requirements of all connected devices. Insufficient capacity leads to distortion and instability. A general rule is to choose a unit with at least 50 percent headroom above your current needs.
High power reserves ensure the supply can handle dynamic audio peaks without performance degradation.
Additional Protections
Look for built-in protections like overheat overvoltage and overcurrent safeguards. These protect both the power supply and your expensive audio equipment from damage due to power surges or short circuits.
Self-resetting protection features add convenience by allowing automatic recovery after a fault occurs.
How to Use and Care for Your Linear Power Supply
When connecting your linear power supply ensure you match the voltage output to your device requirements. Connect the device before plugging in the supply to avoid potential inrush current issues. Use high quality shielded cables to prevent noise pickup between the supply and audio gear.
Place the power supply in a well ventilated area to allow proper heat dissipation. Avoid placing it directly under other hot components like amplifiers or DACs. If your unit has a fan ensure nothing obstructs airflow to prevent overheating during extended use.
Regularly inspect cables and connectors for signs of wear or corrosion to maintain optimal performance. Clean the exterior of the chassis with a soft dry cloth to remove dust and debris. Following these simple care steps ensures long term reliability and consistent audio quality.
Frequently Asked Questions
Why use a linear power supply instead of a switching adapter?
Linear power supplies use transformers and regulators to provide clean stable DC power with minimal ripple and electrical noise. Switching adapters are more efficient but often introduce high frequency noise that can degrade audio quality. This makes linear supplies superior for sensitive audio equipment like DACs and preamps.
What does ripple noise mean in a power supply?
Ripple noise is the residual AC voltage remaining on the DC output after filtering. Lower ripple means cleaner power which results in a darker background and better detail in audio playback. Look for units with ripple measured in microvolts for the best results.
How do I choose the correct voltage for my device?
Check your device manufacturer specifications for the required voltage and current ratings. Using incorrect voltage can damage components or cause instability. Some power supplies offer selectable voltages which provide flexibility for multiple devices.
Can I power multiple devices with one linear power supply?
Yes many units feature dual or multiple DC outputs designed to power several devices. Ensure the total current draw does not exceed the power supply capacity. Isolated outputs prevent cross contamination between connected devices.
What are isolated grounds and why do they matter?
Isolated grounds mean each output has its own ground reference preventing ground loops between devices. Ground loops can cause hum and noise in audio systems. This feature is essential when powering multiple sensitive components simultaneously.
How long do linear power supplies last?
High quality linear power supplies can last many years with proper care. Capacitors and transformers typically degrade very slowly. Keep the unit cool and free from dust to maximize its lifespan and performance over time.
Does a higher price guarantee better audio quality?
Higher price often indicates better components and engineering but it does not guarantee subjective sound improvements. Focus on specifications like ripple noise and component quality rather than brand alone. Many mid-range options offer excellent performance for the cost.
Do I need a dedicated outlet for my power supply?
A dedicated outlet reduces the risk of interference from other electronics on the same circuit. This ensures cleaner power delivery to your audio equipment. Use a high quality power cable to connect the supply to the wall outlet.
Final Thoughts on Choosing the Best Linear Power Supply for Audio
Choosing the best linear power supply for audio can transform your listening experience by delivering clean stable power. The Fosi Audio PSU20 DoukAudio D2 and FiiO Darkside PRO represent excellent choices for various needs and budgets.
Prioritize units with low ripple noise premium transformers and robust regulation for the best performance. Ensure compatibility with your devices voltage and current requirements to avoid any issues.
Remember to check current prices and availability before purchasing as market conditions change. With the right investment in power quality your audio system will perform at its true potential.