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Harley Benton - PowerPlant Junior

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$38.00

5.0 (4)

3 Reviews

0 wishlisted

10 saved

Page last updated Jul 01, 2026

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4.7 (5345)

$38.00

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Description

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Introducing the Harley Benton - PowerPlant Junior, a compact yet mighty power supply that's perfect for guitarists who demand reliability and convenience on stage or in the studio. Designed for seamless integration with your pedalboard, this power supply delivers clean and consistent power to your effects pedals, ensuring your tone remains pristine and uninterrupted.

What sets the PowerPlant Junior apart is its galvanically isolated outputs, a feature that significantly reduces noise and hum, allowing your music to shine through without unwanted interference. With five outputs delivering 9V DC and 120 mA each, you can power a variety of pedals simultaneously, making it an excellent choice for musicians with diverse setups.

This unit is not just about performance; it's also about providing the flexibility you need. Included with the PowerPlant Junior is a versatile cable set, featuring multiple lengths and configurations, such as a Y cable and a daisy chain, allowing you to customize your setup to fit your unique rig perfectly. Whether you're playing a small gig or a major concert, this power supply is your trusty sidekick, quietly fueling your creativity.

Key Features:

5 outputs with 9V DC, each providing 120 mA
Galvanically isolated outputs for reduced noise
Includes a comprehensive cable set (5x 60 cm, 5x 30 cm, 1x Y cable, 1x daisy chain, 100 cm)

Owner's manual

Harley Benton - PowerPlant Junior User Manual

Product specs

Available since	September 2011
DC/AC current	DC
Output current in mA	600 mA
9 V	Yes
12 V	No
18 V	No
Secondary voltage	No
Multi-output power supply	Yes

FAQs

Does the Harley Benton PowerPlant Junior provide isolated outputs for pedals?: Yes, the Harley Benton PowerPlant Junior offers isolated outputs that help eliminate noise and hum, ensuring clean power for your pedals.
How many pedals can the Harley Benton PowerPlant Junior power at once?: The Harley Benton PowerPlant Junior can power up to five pedals simultaneously with its multi-output power supply.
What voltage does the Harley Benton PowerPlant Junior supply to pedals?: The Harley Benton PowerPlant Junior provides a 9V DC output for each of its five isolated outputs, which is standard for most guitar pedals.
Is the Harley Benton PowerPlant Junior suitable for powering high-current pedals?: The Harley Benton PowerPlant Junior supplies a total output current of 600 mA, making it suitable for most standard pedals, but you should check individual pedal requirements to ensure compatibility.
Can the Harley Benton PowerPlant Junior be used with a daisy chain cable?: While the Harley Benton PowerPlant Junior provides isolated outputs, using a daisy chain cable could introduce noise. It's best to use each isolated output individually for optimal performance.

Videos

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leothemetal

Gear review: Harley Benton Power Plant Junior (the good one)

leothemetal

HARLEY BENTON POWER PLANT JUNIOR ✅

Cory Mura

Harley Benton PowerPlant Junior Das Netzteil für Effektegeräte Boss, MXR, Ibanez, Dunlop usw.

LuziASMR

PowerPlant Junior: recenzja zasilacza

A&W Studio

Reviews

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PROS

Exceptional build quality with a sturdy metal chassis
Compact size, fits easily on pedalboards
Noiseless operation with isolated outputs eliminates hum/buzz
Includes a generous assortment of cables for setup flexibility
Provides stable and consistent power across five 9V DC outputs
Affordably priced, offering great value for features provided
Simple, reliable solution for smaller pedal setups
Comes with both long and short power cables for tidy pedalboard setup
Efficiently powers a wide range of pedal types without noise
LED indicator for power status

CONS

Limited to 9V outputs, not suitable for pedals requiring higher voltages
120mA per output may not suffice for very power-hungry pedals
Placement of power cord input can be inconvenient on small pedalboards
Power cord is built into the unit, limiting replacement options
Slight acoustic hum noticeable up close, though not audible from a distance

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Harley Benton - PowerPlant Junior.

Features and functionality

0 0

The Harley Benton PowerPlant Junior has 5 isolated outputs, similar to the T-Rex Fuel Tank Jr., but lacks a removable power cable and a voltage selector.
Source
0 0

The PowerPlant Junior provides up to 150mA per output, which may not meet the power needs of high-current digital pedals.
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User experience

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Owners report no hum or interference issues, indicating effective isolation, despite the low price.
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Owners report that the PowerPlant Junior can withstand physical abuse and spills, suggesting robust durability for gigging environments.
Source

Comparisons

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Internally, the PowerPlant Junior has more filtering capacitors and thicker circuit traces compared to similar budget power supplies like Joyo and Caline.
Source

Build quality

0 0

The PowerPlant Junior's transformer lacks the polished finish of the T-Rex but is suspected to be internally similar, suggesting comparable performance.
Source

Value and pricing

0 0

At £21, it's a rare find for an isolated power supply, competing with more expensive models but offering similar functionality.
Source
0 0

The PowerPlant Junior is noted as the cheapest option for achieving comprehensive isolated power, making it a cost-effective solution for certain setups.
Source

Setup and maintenance

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Users mention using multiple PowerPlant Juniors can be cumbersome due to non-removable cables, but solutions like mounting a power strip beneath the board are suggested.
Source

Use cases and applications

0 0

Ideal for boards with analog pedals, but additional power solutions may be necessary for digital effects requiring more mA.
Source

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5.0 out of 5

Based on 3 Reviews and 4 Ratings

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1 star

alm

292

4 months ago

A smart little box of functionality

It does what it says it does, it powers your pedals and costs pocket change. I use this for my current rig and I've never had issues with this (which says a lot for a Harley Benton product) and you can ask nothing less of it. Its solid construction makes me trust it. As a bass player 5 outputs of 9v is the sweet spot for any rig i may have in the future.

Roles:

Singer Bassist Keyboardist

Genres:

Progressive rock Post-rock Math rock

thecloud9th

184

about 1 year ago

its small, cheap and simple

it doesnt have any bells and whistles and just has 9v outs but its pretty good. i dont hear any noise and daisy chaining analog pedals doesnt make an issue for me. it could be a problem for people who plan on adding more pedals and maybe the cable being too short.

Roles:

Singer Guitarist Keyboardist

Genres:

Alternative rock Indie rock Soft rock

drinkingacoffeewiths...

242

over 2 years ago

It does the trick and is uber cheap!

The main concern one would have with this unit would be that, perhaps, its claim it offers 5 isolated outputs isn't true at all - well, according to some bloke who did one for the internet and tore one of these apart, it offers exactly what it promises!

This isn't particularly small - not unlike the slightly pricier HB offerings - it doesn't offer any higher voltage above 9vlts of power, and the power cable is built in, so you'll have to wrap it around some bit of your pedalboard, or else have it tangling around.

However, its simple nature and reliability to what it predisposes to offer are great and honest, and so is the small price tag for someone who doesn't need a very complicated setup nor carries around a huge stomp box apparatus. If you only have a couple of pedals - the tried and true, 9vlts of power kind - and wish the extra reliability of not having to deal with disposable batteries, this may be a no-brainer for you.

Roles:

Guitarist Keyboardist Composer

Genres:

Rock Pop Indie pop