Harley Benton Power Plant Junior

Harley Benton Power Plant Junior

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Power Plant Junior, AC Adapters for Pedal from Harley Benton.

8 user reviews

Harley Benton Power Plant Junior tech. sheet

  • Manufacturer: Harley Benton
  • Model: Power Plant Junior
  • Category: AC Adapters for Pedals
  • Added in our database on: 11/10/2012

We have no technical specifications for this product
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Harley Benton Power Plant Junior user reviews

Average Score:4.6( 4.6/5 based on 8 reviews )
 6 reviews75 %
 1 user review13 %

sganus's review"Bye-bye to 9-volt batteries....."

Harley Benton Power Plant Junior
Compact PSU with five 9V DC outputs (except the center one) and 120mA each. All outputs are galvanically isolated.

What's inside the box:
- Five 1ft cables with straight/right-angle plug
- Five 2ft cables with straight/right-angle plug
- One Y-cable to feed a 240mA 9V pedal (no possibility to feed an 18V pedal)
- One 3ft daisy chain
- One manual

The pros:
- Very compact PSU that can be accommodated in any pedalboard.
- The 120 mA are enough to power most pedals.
- The Y-cable allows you to a more power-hungry pedal (but you lose an output)
- Incredibly effective insulation of the 9V outputs (I place the PSU on top of the pedalboard, just below the WahWah, which is very susceptible to interferences)
- No noise, not even with the Wahwah (Vox 847A)
- The price is unbeatable (even considering shipping and handling it's less than $50)

The cons:
- No power switch
- Non-detachable power cord

Personally, I connected it to a power strip with power switch concealed under the pedalboard and whatever will be, will be (the power strip and PSUs are fixed with heavy-duty Velcro).

I wouldn't hesitate to buy it again, given its price and performance.

voxydrive's review"I recommend it!"

Harley Benton Power Plant Junior
Small format (4.1" x 3" x 1.6") PSU with five 9v 120mA isolated outputs. It includes power cord but no power switch.
The PSU comes with different types of cables: Five 1ft cables, five 2ft cables, a Y-cable to power a more demanding pedal (max. 240mA) and a 3.5ft daisy-chain with five connectors spaced 7.9" (with an 7.9" extension for each connector) to feed not too demanding pedals (max. 120mA for all pedals) or, inverting the connections, a power-hungry pedal of up to 600mA (5x120mA).
No buzz nor interferences with this small PSU. It's very good for the price!!!
Dca lp09/16/2013

Dca lp's review"Why pay more?"

Harley Benton Power Plant Junior
I bought it secondhand some days ago, this power supply suits me perfectly.
Its value for money is pretty good, not to say it's exceptional!
It can deliver 120mA per output (it has 5), most common pedals, like Boss or Mxr distortions (Tube screamer, etc.), this power supply will certainly know how to please them. You can connect up to 25 pedals via daisy chain, as long as you respect the mA needs of each pedal.
It is also important to note that, unlike the first version (the blue one with more outputs), this one seems more reliable and useful.
Indeed, the first version didn't have isolated connectors, which inevitably produces buzz and other undesirable background noises. Plus, to top it off, its reliability was very questionable...
The defects seem to be solved. This latest version does have isolated connectors, which makes the famous background noises produced by the "power bricks" disappear.
A bet won by Harley Benton. I think it deserves 9/10 given its remarkable value for money.
If you don't believe it's effective, this is how I tested it: I connected my pedals to the loop AND the main speakers, in order to see if I could hear any noise. And I didn't hear anything! I must add that it's almost inevitable to have buzz under such conditions.
Regarding its durability, I can only speak for mine, which I've had for a year.
I'll keep it!

Greig's review

Harley Benton Power Plant Junior
I had had enough of random noises and bulky PSUs (I use one Line 6 PSU, one 1 Spot-like PSU, an ibanez PSU for a fuzz and a Dunlop for the 18V of the OCD... - oh, and I also have the H&K Tube factor PSU). I bought 3 to power 10 pedals (DT10 > Small Stone > MicroVibe > Derr Bender MkII > OCD > LGW > MicroAmp > Boss HF2 > DL4 > DisasterTransport.

The results are conclusive from all points of view: Bulkiness, noise (well below my previous setup), cabling, price. I was able to feed the OCD with 18V and the DL using 3 outputs to guarantee the necessary current (theoretically, 2 are enough but I suffered untimely resets...). The cables supplied are perfect, with right-angled plugs, although they could've added a voltage doubler, now Ill have to solder a bit...

Note: I use the daisy chain supplied as a current multiplier....

I'll update my review after my first gig and in a couple of months, if necessary.
A detachable power cable would have been a plus.

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  • Harley Benton Power Plant Junior
  • Harley Benton Power Plant Junior
  • Harley Benton Power Plant Junior
  • Harley Benton Power Plant Junior

Harley Benton Power Plant Junior manuals and other files

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Other names: powerplantjunior

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