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Photo of Harley Benton PowerPlant Junior and more gear in a pedalboard, guitar, and live

Photo of Harley Benton PowerPlant Junior and more gear in a guitar

Harley Benton PowerPlant Junior

4.5 (27)

2 Reviews

Find out who is using Harley Benton Power Plant Jr.

3 community setups

1 wishlisted

59 saved

Page last updated Oct 23, 2025

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Description

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Power supply for effects devices

5 Outputs with 9 V DC (with each 120 mA)
Galvanically isolated
Dimensions (W x Dx H): 116 x 77 x 38 mm
Incl. cable set (5x 60 cm / 5x 30 cm /1 x Y / 1x Daisy Chain, 100 cm)

Owner's manual

Harley Benton PowerPlant Junior User Manual

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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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

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The Harley Benton PowerPlant Junior has 5 isolated outputs confirmed by multiple users.
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The PowerPlant Junior's outputs need to match or exceed the pedal's actual current draw, often more accurately found on sites like stinkfoot.se.
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The unit includes a variety of cable sizes, enhancing compatibility with different pedal setups.
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Comparisons

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Externally similar to T-Rex Fuel Tank Jr., but lacks removable cord and voltage selector.
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User experience

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Users report no hum issues when using the PowerPlant Junior on their pedalboards.
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While two units provide ample isolated outputs, the fixed cables can be cumbersome, but some users manage by chaining supplies for a single plug.
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Build quality

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Harley Benton features more filtering capacitors and thicker circuit traces than some other budget power supplies.
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Owners note the PowerPlant Junior survives physical stress well, including trampling and accidental spills, highlighting its durability.
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Value and pricing

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At £21, offers significant savings over the T-Rex Fuel Tank Jr., which costs around $105.
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Software and compatibility

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Ensure the polarity matches, typically the Boss standard: negative center, positive sleeve, with a standard plug size of 5.5mm outer and 2.1mm inner diameter.
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Use cases and applications

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The PowerPlant Junior can potentially power Behringer FX600, Zoom MS70CDR, and Zoom G1X, provided specifications align with regard to voltage, polarity, and current draw.
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For power-hungry digital pedals, owners recommend an additional power supply, as the Junior's 150mA per output might be insufficient.
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Setup and maintenance

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Some users find mounting a power strip beneath the pedalboard helps manage multiple PowerPlant Juniors efficiently, reducing cable clutter.
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4.5 out of 5

Based on 2 Reviews and 27 Ratings

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florian_tennstedt

925

over 3 years ago

Small Powerplant even smaller pricetag

It does it's job. There's no humming or any other problems. Comes with a ton of cables (very useful is the yellow Y-cable). It costs like 35$ new (35€ in Germany) but you can get them for about 15$/€ used. I have one on each of my two boards.

Roles:

Singer Guitarist Composer

Genres:

Rock Blues garage punk blues

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