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Harley Benton PowerPlant ISO-2 Pro

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$66.00

5.0 (17)

1 Critic Review

2 Reviews

All time low price

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Page last updated Jul 01, 2026

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4.8 (2130)

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Description

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Power up your pedalboard with the Harley Benton PowerPlant ISO-2 Pro, a powerhouse of versatility and reliability for the modern guitarist. Designed with 8 fully isolated outputs, this multi power supply unit eliminates noise and hum, ensuring your effects pedal chain runs as smoothly as your riffs. Each output is not only isolated but also filtered and short-circuit protected, providing you with a stable and clean power source.

In a world where digital effects demand high amperage, the PowerPlant ISO-2 Pro delivers. It offers flexible voltage options with outputs A and B adjustable between 9, 12, and 18 volts, handling up to 500 mA to accommodate even the most power-hungry pedals. Outputs 3 to 8 supply a steady 9 volts at 300 mA, perfect for your essential stompboxes.

Featuring LED monitoring for each output, you can effortlessly keep track of your power flow and performance. This compact, lightweight unit easily fits on any pedalboard without taking up valuable space, while its included DC power adapter makes setup a breeze. Whether you're jamming at home or taking the stage, the Harley Benton PowerPlant ISO-2 Pro is your reliable partner in delivering pristine sound.

Key Features:

8 isolated, filtered, and short-circuit protected outputs
High amperage suitable for modern digital effects
LED monitoring for each output
Includes a 12 V @ 2 A DC power adapter
Output A & B: 9 / 12 / 18 V DC @ max. 500 mA
Outputs 3-8: 9 V DC @ max. 300 mA (individually isolated)
Includes multiple coaxial plug cables and Y-cable for voltage doubling

Owner's manual

Harley Benton PowerPlant ISO-2 Pro User Manual

Product specs

Available since	February 2018
DC/AC current	DC
Output current in mA	2000 mA
9 V	Yes
12 V	Yes
18 V	Yes
Secondary voltage	No
Multi-output power supply	Yes

FAQs

How many outputs does the Harley Benton PowerPlant ISO-2 Pro have?: The Harley Benton PowerPlant ISO-2 Pro features eight isolated outputs, with six providing 9 volts at 300mA, and two adjustable outputs that can be set to 9, 12, or 18 volts at up to 500mA.
Can the Harley Benton PowerPlant ISO-2 Pro power high-current pedals?: Yes, the Harley Benton PowerPlant ISO-2 Pro can power high-current pedals with its two outputs that offer up to 500mA, suitable for demanding digital pedals.
Does the Harley Benton PowerPlant ISO-2 Pro offer isolated outputs?: Yes, all outputs on the Harley Benton PowerPlant ISO-2 Pro are fully isolated, reducing noise and interference when powering multiple pedals.
Is the Harley Benton PowerPlant ISO-2 Pro suitable for international use?: The Harley Benton PowerPlant ISO-2 Pro operates on a universal power supply, making it suitable for use in various countries with the appropriate adapter.
What voltage options are available on the Harley Benton PowerPlant ISO-2 Pro?: The Harley Benton PowerPlant ISO-2 Pro offers 9V, 12V, and 18V options, providing flexibility for powering a wide range of guitar pedals.

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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 ISO-2 Pro.

Build quality

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The power supply uses a 12V DC input rather than a sturdier IEC cable, which may affect durability in high-traffic gig environments.
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The included cables are notably thick and long, which may be cumbersome for compact setups or tight pedalboards.
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The Harley Benton ISO-2 Pro is noted for having a build quality similar to Wilkinson, being a step above entry-level brands like Vitoos.
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Value and pricing

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The ISO-10 model, despite having fewer outputs, is more expensive due to its sturdier power cable connection.
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At €68, it's highlighted as a cost-effective choice for truly isolated power in Europe, especially compared to models like the Power Brick Jr.
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The ISO-2 Pro is compared to Behringer for its budget-friendly approach, providing essential features without premium pricing.
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User experience

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After 3 months of use, an owner highlighted reduced background interference compared to previous power supplies.
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An owner reported the ISO-2 Pro as the quietest power supply they've used, indicating excellent noise suppression.
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Owners report noticeable noise reduction, particularly effective with pedals like the MXR Phase 99, eliminating initial pops.
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Owners report no noise issues even when powering multiple high-end pedals with the ISO-2 Pro, suggesting reliable performance.
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Features and functionality

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The power supply uses a wall wart, which some owners find less durable than a C14 cable option, especially for gigging.
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The ISO-2 Pro lacks an on/off switch, requiring users to unplug it to power down their pedals.
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The ISO-2 Pro includes the ability to switch between 9V, 12V, and 18V, offering flexibility for different pedal requirements.
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The ISO-2 Pro is confirmed to be truly isolated as of the 2022 model, crucial for avoiding noise in pedal setups.
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Use cases and applications

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The unit is recommended for use with digital pedals, addressing previous complaints about non-isolated power supplies.
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Comparisons

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It's frequently compared to the T-Rex Fuel Tank Jr. but offers voltage switching, which the T-Rex lacks.
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The Harley Benton ISO-2 Pro mimics the function of higher-priced models like Truetone CS7, offering similar isolation and power handling at a lower price.
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Critic Reviews

Test: Harley Benton PowerPlant ISO-2 Pro – stinkfoot.se

stinkfoot.se

The Harley Benton PowerPlant ISO-2 Pro delivers on isolation and compactness, making it an appealing choice for pedalboards, especially for travel. Its lightweight design and ability to maintain a quiet signal are significant pluses. However, the review raises concerns about the flimsy power supply cable, which may not withstand heavy touring. Additionally, while the power outputs are stable, the actual current capacity remains untested, leaving potential users in the dark about its limits. Overall, the ISO-2 Pro shows promise but lacks a definitive endorsement due to these uncertainties.

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5.0 out of 5

Based on 2 Reviews and 17 Ratings

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1359

over 5 years ago

Cheap power supply that works well

This is a cheap, but very solidly built power supply. I have two of these powering my pedal board, and they do their job well and without creating any noise, hum or interference.

Two of the eight power outlets can be switched to 9V, 12V or 18V, and a Y cable adapter is included so that a third pedal can be operated at 18V by using two 9V jacks. The total power load is 2000mA; two outlets supply up to 500mA, whereas the other six theoretically supply up to 300mA, but in practice the sockets on the very right can drop to about 200mA even if some of the other pedals are not very power hungry, so it's best to connect the pedals from left to right in such an order that those who draw the most power are plugged in on the left and those who draw the least power are on the right. There are LEDs that indicate if the maximum power load for a socket has been exceeded.

I also noticed that for some reason the EHX Canyon, which supposedly only requires 150mA at 9V DC, only works properly when connected to one of the 500mA outlets. I have not had any problems with other pedals.

That said, I don't think that you can get a better power supply for a similar amount of money.

Roles:

Guitarist Composer

Genres:

Dark ambient Electroacoustic music Musical improvisation