Mojo AudioJoule v5 Ultralow-Noise Power SupplyMojo Audio Joule v5 Ultralow-Noise Power Supply - FACTORY RECONDITIONEDAwarded Audiophilia Star Component.Unlock the potential of any component with Mojo Audio’s ultralow-noise power supplies. Upgrading the stock "wall wart" or "brick" style switch-mode power supply ...599.95

Mojo Audio Joule v5 Ultralow-Noise Power Supply - FACTORY RECONDITIONED [Expired]


no longer for sale

Awarded Audiophilia Star Component.

Unlock the potential of any component with Mojo Audio’s ultralow-noise power supplies. Upgrading the stock "wall wart" or "brick" style switch-mode power supply on your components will improve performance significantly. Plug-and-play upgrades for most components with external power supplies.

45-day no-risk audition.      

When the distortion caused by power supply noise is removed, you will hear significantly more low-level detail than ever before, along with better time, tune, tone, and timbre. Harmonic content and articulation improves, and the dynamic range and frequency response expands. Layers of subtlety and nuance are revealed.

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Original manufacturer's 1-year warranty.

Note that the $599.95 price is for a used Joule v5.0 power supply in Basic Black or with machined silver face plate (your choice). Comes with a new high-performance DC power cable mated to your specific component. Since this power supply has been used it may have subtle cosmetic imperfections. AC power cable, Internal Filter Module, and shipping are additional. 

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Single or dual output options:

  • Basic Black or with silver machined face plate (same price).
  • Single regulated single output (listing price).
  • Single regulated dual output (+$50 for two components of the same voltage).
  • Dual regulated dual output (+$250 can be fixed or adjustable voltage).

Available in any international AC voltage, from 100VAC to 250VAC.

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An ideal replacement for power supplies on:

  • Mac Minis of all ages
  • CAPS music servers
  • Pico-ITX type HTPC computers
  • microZOTL and other headphone amps
  • Intel NUC, Gigabite Brix, and Raspberry Pi
  • Bel Canto, Mytek Brooklyn, Wyred4Sound, Exogal, and other DACs
  • Lumin, LANRover, microRendu, sMS-200, and other music-streamers
  • Regenerators, reclockers, USB to S/PDIF converters, and other USB devices
  • Naim, Wired4Sound, Baetis, and other music servers
  • USB cards, network cards, and I2S converters
  • Phono stages and cross-overs
  • External drives, NAS, and RAID arrays
  • DACs, ADCs, DAWs and other digital converters
  • Routers, switches, and other network devices

Our Joule v5.0 is a plug-and-play upgrade for most components with wall wart or brick type external power supplies. We make custom DC power cables in normal and high-current configurations to fit almost any specification.

If you require a special connector that is not shown on our website please contact us.

To power multiple components we offer an optional second regulated power output and dual DC power cables with up to 10A of continuous power.

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Features and Specifications:
  • Less noise than a LiO4 battery.
  • Less than 50uV of peak-to-peak noise/ripple.
  • Less than 10uS settling time from zero to full output.
  • Up to 7 amps continuous power with up to 10 amp peaks.
  • Hot parts are heat sunk to and dissipated through the entire chassis.
  • Sophisticated AC filtering - no power conditioners are required.
  • Cascaded spread spectrum capacitive filtering for expanded bandwidth.
  • DC ground lift option allows separating AC and DC grounding.
  • Easily converted from 115V to 230V AC at IEC inlet.
We use only the highest-quality parts:
  • Belleson ultralow-noise high-dynamic regulators.
  • Organic polymer capacitors with ESR as low as 7mOhms.
  • High-frequency MLCC capacitors to filter beyond 3GHz.
  • IXYS ultrafast soft recovery Hexfred diode bridge.
  • Laboratory grade filtered/fused/switched AC power inlet.
  • Neutrik silver-plated 10A + 10A XLR DC power outlets.
  • Ultra-heavy gauge .125" thick all-aluminum chassis.
  • All non-magnetic stainless steel PEMs and hardware.
  • Durable high-temp powder coating inside and out.
  • Sorbothane or adjustable spiked anti-resonant feet.

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FAQs * FAQs * FAQs * FAQs * FAQs * FAQs * FAQs * FAQs * FAQs * FAQs * FAQs

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What Is the Mojo Audio Difference?

We’re originals—not copycats...

Over 30 years experience modifying and upgrading power supplies for professional applications.

The coolest designs...

With all hot parts heat sunk to the chassis, the heat dissipates through the entire surface of the chassis, extending parts life.

Less is more...

We are the manufacturer - there are no middle men doubling the price every time the product changes hands.

You can’t go wrong...

We have 45-day no-risk audition. No restocking fees and no exceptions. 

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What about "Super Cap" power supplies?

Super Caps were engineered to have a high micro-farads storage capacity in a small package. That is what makes them "super." They were engineered to keep CMOS memory in computers during power brown outs. There were never intended for use as a permanent battery bank in audio equipment.

As Super Caps discharge their output voltage changes significantly. This means when the charging controller switches between the discharged and charged banks, the fully charged bank of Super Caps will have a significantly higher voltage than the discharged bank. This results is a "saw-tooth" pattern with sharp peaks and valleys.

In contrast, a linear power supply has constant voltage with relatively subtle ripples (noise). It requires far less additional filtering to remove the subtle ripple in a linear power supply than to remove the deep saw-tooth pattern coming from a dual-bank Super Cap power supply.

Also, Super Caps have poor durability. There expected life is roughly 3-years. Now you know why the best of Super Cap power supplies are never warrantied for more than 3-years. In contrast, a properly engineered linear power supply will last for decades.

And in the end, what you are really listening to is the final regulator that fixes the output voltage and polishes any remaining ripples from the DC power. Most Super Cap power supplies use inexpensive low-noise IC regulators that only have modest levels of performance. Mojo Audio uses Belleson ultralow-noise ultrahigh-dynamic regulator modules - the finest regulators in the audiophile industry. Not only is their noise remarkably low, their dynamic response is <10uS from zero to full current output assuring incredibly clean and stable DC power regardless of ever changing current requirements.

Super Cap audiophile power supplies are just a gimmick. If Super Caps were actually a good way to provide low-noise DC power than why are they not used this way by the military, aerospace, and telecommunications industries?

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Don’t batteries have the purest DC power?

Though better than the inexpensive switch-mode power supplies that come with many audio, video, and computer products, battery performance can’t compare to the performance of an ultra-low noise linear power supply.

Batteries use a chemical reaction to generate DC power, and each chemical reaction from each type of battery has its own audible noise signature. This is why a specific type of battery, such as LiO4, sounds better than another type, such as SLA. The noise level of a battery also changes significantly during different phases of the discharge and recharge cycle, making batteries an inconsistent-sounding power source as well. And then there's the additional expense of replacing batteries every few years.

Batteries also have much slower dynamic response than linear power supplies, so they don't respond as quickly to changes in current requirements. Their slower dynamic response results in batteries making music sound slower, less dynamic, and less articulate when compared to a linear power supply.

If battery power has the lowest noise, then why do the military, aerospace, and telecommunications industries only use them for portable devices and uninterrupted AC power supplies (UPS)?

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What is the difference between a linear and a switching power supply?

Switch-mode power supplies (SMPS) are in wall warts, external brick style power supplies, and all computers. The advantages of SMPS are that they are significantly smaller, significantly more efficient, operate with much less heat, and are significantly lower cost to manufacture. Smaller, cheaper, and more efficient...what's not to like?

The disadvantages of SMPS is they have significantly more noise than linear power supplies. The best SMPS have peak-to-peak ripple (noise) roughly equal to the most basic of linear power supplies. But ripple is not the only noise SMPS produce. They also radiate inductive noise that can be picked up by cables and components in close proximity. And they dump noise onto the common AC ground that pollutes the power of any component plugged into the same AC circuit.

Also, when compared to high-performance linear power supplies, SMPS have very slow dynamic response. When reproducing music, slower power supplies sound awkward and less liquid, restrict dynamic passages, mask micro-details and micro-dynamics, and distort the time and tune.

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How does an ultralow-noise power supply improve computer performance?

All computer communication works on a system of checks and error correction (check sum). If a packet of data doesn’t pass the check, a new packet of data is sent to replace the original. The lower the power supply noise, the fewer bit read errors, the fewer errors to correct, and the greater the system resources.

When you free up system resources with a cleaner power supply a computer will perform as if it has a faster processor, faster storage drive, and more RAM. When a low-noise power supply is used with a computer-based music server or streamer the result is more liquid and articulate sound, combined with greater depth, detail, and dynamics.

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Are there any options with your power supplies?

To power components of different voltages, such as USB devices like NAAs, reclockers, regenerators, or S/PDIF converters, our power supplies have an optional second regulated output that can be fixed or adjustable.This configuration can power up to two components of two different voltages (four components total).

To power multiple devices of the same voltage, we offer a second output from the primary regulator that would allow you to power up to four components of the same voltage.

We also offer an assortment of different length and type high-performance DC power cables to meet almost any need. Different plugs...different current ratings...dual V for two components...and adapters.

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How difficult is it to upgrade the power supply in a Mac Mini?

For 2009 and older Mac Minis the upgrade is plug-and-play requiring no tools. 

For 2010 and newer Mac Minis, if you have the tools and skills to change the hard drive, you also have the tools and skills to install one of our plug-and-play power supply upgrade kits. 

Our Internal Filter Module (IFM) with a 5.5mm jack and our removable DC power cable with a 5.5mm plug are designed for ease of installation and convenience.

We also make a high-performance hardwired soldered IFM and DC cable for people who have more technical expertise. Our hardwired soldered power supply upgrade kit requires some basic electronics skills, a volt/ohm meter, and soldering gun to install.

Most of the upgrade kits we sell are of the hardwired and soldered variety.

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What about degradation caused by heat?

On our Joule V power supply, we position the hot parts far from sensitive capacitors and heat sink them directly to the chassis. This topology conducts the heat through the chassis to minimize heat buildup inside the power supply that can degrade sensitive parts.  

Our power supplies and Mac Mini upgrades are engineered to last for over a decade.

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