Join the Harley Benton PowerPlant Junior Fans Community
Use the tabs below to see what music people who love this gear like, explore its tech specs and read reviews by other members. Stay tuned, more community features are coming up!
1 verified review from our community
Read our unbiased and authentic community-contributed reviews
"Product was exactly as advertised and..."
Product was exactly as advertised and am more than happy with it . I filled my needs completely and did just what I bought it for
Reviewed Jan 05, 2014
3 reasons why people want to buy it
Actual feedback of people who want to buy Harley Benton PowerPlant Junior
- "I really like it, and i would like to have it"A 17 y.o. or younger male fan of Slayer from Serbia
- "It's very nice"A 17 y.o. or younger male fan of Gary Moore from Romania
- "I perdonslly like everything about it"A 18-24 y.o. male fan of Seeed from Serbia
People that took the "IS IT GOOD FOR ME?" test said they wanted to buy Harley Benton PowerPlant Junior for the above 3 reasons. Their opinion is based on their own independent research and should help in your own purchase decision.
Still undecided? Take the "IS IT GOOD FOR ME?" test
Related reviews
We also recommend the following reviews for gear related to Harley Benton PowerPlant Junior
"Massive, tidy pedalboard power with surprising flexibility and a few practical caveats."
Review of Harley Benton Spaceship PowerBar 80
I spent a few weeks running the Harley Benton Spaceship PowerBar 80 under a full-sized pedalboard so I could see how it behaved in rehearsal, at home and during quick run-throughs at a gig-like level of volume and patch complexity. My goal was simple - replace a pile of wall-warts and a separate supply with a neat, integrated solution that would power a mix of low-current analog pedals and higher-current modern digital units without fuss.
First Impressions
The PowerBar 80 arrives as a slim, low-profile aluminium bar that tucks away neatly under the board - it feels like it was designed to be invisible once mounted. Out of the box I was immediately happy with the cable set and mounting accessories, which made installation straightforward and fast; the LEDs for each output are subtle but helpful for quick checks.
Design & Features
This unit packs a lot of variety: 15 individually isolated outputs grouped in different current ratings, plus 4 non-isolated / high-current style outputs including a 9 V / 3 A feed, a 24 V / 2 A output and both USB-A and USB-C ports for charging. A handful of outputs are switchable between 9/12/18 V to accommodate pedals that need alternate voltages. Physically it is very compact - slim enough to mount under most 80 cm boards without eating into pedal space. The LED indicators on each jack make it simple to confirm which outputs are live at a glance.
Setup & Integration
Mounting the bar was straightforward with the supplied aluminium edges, screws and straps, and the included assortment of DC cables saved me from hunting down adapters. I appreciated that the AC adapter supports 100-240 V so the same unit will work in different countries without a separate PSU. Routing was tidy and the LEDs helped when rearranging pedals mid-session.
Real-World Experience
In day-to-day use the PowerBar 80 became the backbone of my board. Most pedals - dirt boxes, modulation, reverb and a couple of multi-FX units - ran clean and quiet on the isolated outputs, and the available current on the higher-rated isolated jacks was more than enough for modern digital effects. The 3 A non-isolated output is clearly designed for high-draw devices and multi-FX units, and it powered my large-modeler fine in terms of current headroom.
That said, I did notice some sensitivity when I placed extremely noise-sensitive pedals directly on the non-isolated 3 A output - in a few patches I could coax a faint hiss or high-frequency artifact that vanished when I moved those pedals to isolated outputs or used a different cable. For typical staging and most pedal combinations this won’t be an issue, but if you rely on particularly finicky vintage fuzzes or boutique pedals I recommend testing them on the isolated jacks first and avoiding the non-isolated outlet for those boxes.
The Trade-Offs
The PowerBar 80 balances price and versatility but it is not completely without compromise - the non-isolated high-current output can be noisy with sensitive pedals, and the switchable 9/12/18 V outputs require attention to avoid accidentally sending the wrong voltage to a box. Also, the total power budget is finite, so very power-hungry rigs with several high-draw pedals may push the limits if everything is used at once. For most hybrid boards mixing analog and modern digital pedals the trade-offs are reasonable and manageable.
Final Verdict
The Spaceship PowerBar 80 is an excellent value proposition if you want a tidy, integrated power solution with a wide variety of isolated outputs and high-current options. I would recommend it for players who run medium-to-large pedalboards with a mix of analog and digital pedals, and who are comfortable placing particularly noise-sensitive units on isolated outputs rather than the non-isolated high-current feed. For professionals who need absolute, uncompromising noise-floor performance across everything I would advise testing sensitive pedals carefully - but for most gigging and rehearsal situations this unit simplifies setup and cuts down clutter while delivering reliable power.
by Musicngear Verified Community ReviewsHelpful Tips & Answers
- Can the PowerBar 80 run a large modeler that needs 3 A?
- Yes - the unit has a dedicated 9 V / 3 A non-isolated output specifically for high-draw devices and multi-FX units, and it powered my modeler without brownouts in normal use.
- Are the outputs truly isolated to avoid ground hum?
- In my testing the 15 labelled isolated outputs were quiet and kept hum to a minimum when pedals were on those jacks, which is exactly how I would wire sensitive analog pedals.
- What about the switchable 9/12/18 V outputs - are they safe to use?
- I used the switchable outputs for a couple of pedals that accept alternate voltages and they behaved as expected, but I made a point of double-checking the selector before plugging anything in to avoid accidents.
- Will it fit under other brands of 80 cm pedalboards?
- It fits neatly under most 80 cm boards I've worked with, and the mounting hardware is flexible enough to adapt to a few different constructions.
- Can I charge a tablet or phone from the unit?
- Yes - there are USB-A and USB-C ports on the unit which I used to top up a phone during rehearsals with no issues.
- Is the unit noisy, any ground loop issues?
- Overall it was quiet for my setup on the isolated outputs; I only ran into a faint artifact with very noise-sensitive pedals when they were plugged into the non-isolated high-current output.
- How is the build quality and included accessories?
- The construction feels solid and the included cable kit, mounting edges and straps made installation quick and tidy without hunting for parts.
"Compact, truly isolated pedalboard power that punches above its price."
Review of Harley Benton PowerPlant ISO-2 Pro
I’ve been running the Harley Benton PowerPlant ISO-2 Pro on a small rehearsal board for a few weeks, and it’s proven to be a surprisingly capable little power hub - especially for the price. I wanted something compact with genuine isolation so my combination of overdrives, modulation and a digital delay wouldn’t hum or interact, and this unit promised exactly that functionality in a pocket-sized chassis. My aim was straightforward - quiet, stable power for up to eight pedals without breaking the bank or adding a tangle of wall-warts.
First Impressions
Out of the box the PowerPlant ISO-2 Pro feels light but solid - it’s noticeably smaller than many multi-output supplies and easily fit under my compact pedalboard. The LEDs for each output and the supplied assortment of coaxial patch cables made setup quick, and the switchable outputs for higher voltages gave me immediate flexibility for pedals that need 12 V or 18 V. I expected a cost-focused product to cut corners, but the initial build and included cables left me pleasantly surprised.
Design & Features
Physically the unit is tiny - the low-profile aluminium chassis slips under most pedalboards with ease and the status LEDs for each output are bright and unambiguous, which I appreciated on a dim rehearsal stage. Functionally the layout is straightforward: two switchable outputs that can run 9/12/18 V DC at up to 500 mA each, and six dedicated 9 V DC outputs rated to 300 mA each - all reported as isolated, filtered and short-circuit protected. The unit is powered by a single external adapter (12 V/2 A on this model) and Harley Benton warns the total combined load must not exceed the specified wattage, which is important to respect when mixing high-draw digital pedals with smaller analog stompboxes.
Setup & Usability
Setting the ISO-2 Pro up was quick - I used the two 500 mA outputs for a multi-function multi-FX and my tuner, and put the rest of my 9 V stomps on the 300 mA outputs. The included 60 cm coaxial leads were long enough to route cleanly on my board, and the single Y-cable (voltage doubler) was handy for a couple of older pedals that needed a second supply rail. I did pay attention to the total wattage and per-output limits - pairing a 500 mA output with a hungry digital reverb plus a wireless unit would be pushing the limits if the total draw climbed too high, so I mixed high-drain pedals across the two switchable outputs during rehearsal.
Real-World Experience
In rehearsal the biggest win was the significant reduction of hiss and ground-loop related hum I previously had with daisy-chained supplies - the isolation is audible in a good way. Over several sessions the LEDs reliably indicated each output’s status and I experienced stable operation for the most part, but I did notice one quirk: on a couple of occasions the unit behaved as if it was starved for power when used on marginal wall outlets, causing the LEDs to blink or drop out until I swapped mains sockets. I also learned to keep an eye on connector compatibility with older pedals - many modern supplies use 5.5 x 2.1 mm plugs while some vintage stompboxes expect 5.5 x 2.5 mm, so adapters may be required for certain legacy units.
The Trade-Offs
The compromises here are mostly about capacity and connector standards - it’s not designed to replace a large-format 12-output pro distro if you run a lot of modern multi-FX or amp-modelers without separate adapters. Because the total output budget is limited, you’ll need to plan which pedals go on the higher-current switchable outputs and which can survive on the 300 mA lines. Also, while the chassis is solid for its size, the lightweight nature means it doesn’t add much protection against rough handling - I’d mount it under the board rather than leave it exposed on top during transit.
Final Verdict
Overall I found the Harley Benton PowerPlant ISO-2 Pro to be an excellent budget-isolated power supply for small to medium pedalboards - it gives you real isolated outputs, flexible voltage options, and a compact form factor that makes tidy routing a breeze. It’s not without quirks - watch the total wattage, verify plug sizes for older pedals, and be mindful of marginal mains outlets - but for players who want credible noise rejection and per-pedal isolation without spending double or triple the money, it’s an easy recommendation. If you gig with a modest pedal count or want to eliminate noise from a compact board, this unit delivers an outstanding price-to-performance ratio.
by Musicngear Verified Community ReviewsHelpful Tips & Answers
- Can the ISO-2 Pro run both modern digital pedals and older analog stompboxes at the same time?
- Yes - I ran a digital delay and a couple of analog overdrives together without noise issues, but you must distribute high-draw pedals across the 500 mA outputs and monitor the total load.
- Are the outputs truly isolated or just filtered?
- In my testing the isolation was effective at removing ground-loop hum - when I swapped from a daisy-chain supply to the ISO-2 Pro the noise dropped noticeably, so the isolation is practical and not purely cosmetic.
- Will this power supply fit under a small pedalboard?
- The unit is compact and low-profile, so it fit comfortably under my smaller board and left room for cable routing without interfering with pedal placement.
- What should I do if a pedal uses a 5.5 x 2.5 mm jack?
- If you hit that mismatch I used a small adapter cable for those legacy jacks and it solved the problem quickly; just check your pedals before committing.
- Is the included cabling good enough or should I upgrade?
- The included 60 cm coaxial leads are perfectly usable for most layouts - I kept them for rehearsals, though some players may prefer right-angle replacements for tight pedal spacing.
- Does the unit run warm after long sessions?
- It warms slightly during extended use but never felt hot; I still avoid covering ventilation when I’m running multiple high-draw pedals for long gigs.
"Small, quiet and affordable isolated power for a compact pedalboard."
Review of Harley Benton PowerPlant ISO-1 Pro
I put the Harley Benton PowerPlant ISO-1 Pro on a small practice board to replace a daisy-chain wall-wart and see if an inexpensive isolated supply could stop the background hum I kept getting. I came from a mix of analogue stompboxes and a couple of modern digital pedals, so my goal was clean, reliable 9V power without breaking the bank.
First Impressions
Out of the box the ISO-1 Pro felt compact and reassuringly light - it slips easily under a small pedalboard or sits on top without hogging space. The unit ships with a small 12V/2A adapter and a full set of cables - eight 60 cm 5.5x2.1 mm cables plus a short Y-cable - so I was able to power a handful of pedals right away. The blue LED indicators for each output are bright and unmistakable, which is handy for troubleshooting but something to consider if you mount it visibly on stage. The construction looks simple but solid for the price, and the isolated outputs gave me immediate confidence that noise would be addressed.
Design & Features
The ISO-1 Pro provides eight individually isolated, filtered and short-circuit-protected 9V outputs rated at up to 500 mA each - that spec is real and central to how this unit performs. The whole unit is powered by the included 12V 2A adapter and the total available output power is limited by that supply - the manual and product sheet spell out the practical limit so you know not to overload it. Each output has a bright LED that shows when it is active and it will shut down an output briefly if an overload is detected, then restore it after a short pause - a useful little protection feature. Physically the case is compact and lightweight, with jacks and LEDs laid out sensibly for small- to medium-sized boards.
Build Quality & Protection
The aluminium-look housing feels tidy and adequately rugged for gigging or rehearsal room use, though it is not an overbuilt tour-case - it’s designed to be functional and unobtrusive. Internally the unit uses proper isolation on each output, and in my time with it I noticed a clean noise floor with no hum being introduced into amps or pedals. The overload/short-circuit protection behaved sensibly during a staged overload test - the LED on the affected output went out and then came back when I reduced the draw. The only physical niggle is the thinness of the included adapter cable - handle it with care or swap it for a sturdier regional lead if you need long runs.
Comfort & Portability
One of the ISO-1 Pro’s strengths is size - it’s small and light enough to tuck under a Pedaltrain Nano or similar board without adding weight. The included 60 cm patch leads are convenient for close-packed pedals and make layout quick, though if you prefer right-angle connectors you’ll either need to mount pedals to accommodate the straight plugs or swap cables. For transport it adds almost no bulk, which is exactly what I look for on a practice/gig board that needs to stay simple.
Cables & Setup
The package with eight matching cables and a Y-cable got me running immediately and removed the usual fiddling with mismatched leads. The Y-cable is useful for chaining outputs if you need to use two outputs in a voltage-doubling configuration for a specific pedal; the manual stresses correct polarity and maximum total power limits, so I planned my hookups around that. I did find that fit under some pedalboards can be tight because the outputs sit on the unit’s sides - measure your available clearance if you plan to mount it under a shallow board.
Real-World Experience
In rehearsals and home use I put a mix of fuzzes, delays and modulation pedals on the ISO-1 Pro and immediately noticed the disappearance of 60 Hz hum that had plagued my daisy-chain arrangement - the isolation is not marketing fluff, it makes a real difference. I did push the limits trying to give a larger multi-function digital unit more current than one output provides and learned the value of checking each pedal’s current draw - the ISO-1 Pro’s per-output 500 mA cap and the unit’s total available power mean you must plan high-draw pedals carefully. For typical stompbox rigs and several smaller digital pedals it kept everything quiet and stable across long practice sessions and a couple of informal gigs.
The Trade-Offs
This is not a luxury power supply - it’s a compact, budget-minded isolated unit, and that brings a few trade-offs. If you rely on a lot of high-current pedals or several multi-FX units that need more than 500 mA each, you’ll either have to dedicate multiple outputs or opt for a larger supply; the included adapter cable is serviceable but a little fragile; and the bright LEDs can be distracting onstage if you don’t hide the unit under the board. For players who need more voltages than 9V or a multitude of higher-current outputs, a different model in the series or a higher-end supply will be necessary.
Final Verdict
The PowerPlant ISO-1 Pro is one of those rare utility purchases where the price-to-performance ratio really pays off - it solved my hum problems, is compact enough for a small board, and includes everything required to get running. I recommend it to gigging and home players who run mostly 9V pedals and want true isolation without spending on boutique supplies, but players with multiple high-current multi-FX units or who need many non-9V rails should look at larger solutions.
by Musicngear Verified Community ReviewsHelpful Tips & Answers
- What voltages and currents does it provide?
- Every output is 9V DC rated to 500 mA, and the unit is powered by the supplied 12V 2A adapter so total usable output is constrained by that adapter. I confirmed these numbers in the manual and planned my pedal choices around them.
- Is it truly isolated - will it remove hum?
- Yes - in my setup isolation materially reduced earth-loop hum compared to a daisy-chain, and isolated outputs made it easier to diagnose problems during rehearsals.
- Can I power an 18V pedal with it?
- You can use the short Y-cable for devices that need 18V as described in the user guide, but you must follow the manual’s advice on polarity and not exceed the unit’s overall power limits.
- Are the LED indicators too bright on stage?
- The LEDs are very visible - I found them helpful for quick checks, but if you mount the unit on top of a board they can be distracting under stage lights, so I tucked mine underneath for gigs.
- Does it come with all the necessary cables?
- Yes - it ships with eight 60 cm 5.5x2.1 mm cables and one Y-cable, which meant I didn’t have to rummage for leads to get the board up and running.
- Is the included power adapter compatible worldwide?
- The supplied adapter is 12V 2A with regional variants - if you need a different mains lead length or a sturdier cable I swapped mine without issue to suit my setup.
- Would I recommend this for a beginner building a first pedalboard?
- Yes - for a first board with mostly analogue pedals and a couple of small digital pedals it’s a great, affordable upgrade from daisy-chaining and makes troubleshooting easier.