PowerPlant ISO-12AC Pro Modular

The Harley Benton PowerPlant ISO-12AC Pro Modular is a high-performance power supply unit designed for effects pedals. Featuring 12 individually isolated outputs and one non-isolated output to eliminate noise and hum, it should satiate even the most power-hungry pedalboards. You get support for various voltage and current configurations to accommodate modern digital effects, with LED monitoring for each output. The unit operates with a universal 100-240V AC input and includes additional USB-A and USB-C ports for charging tablets and phones. The modular design allows multiple units to be connected, and it comes with various DC cables and connectors. A compact, sturdy aluminium housing keeps it protected on or underneath pedalboards, making it a versatile and reliable power solution for musicians. Whether you're performing live or working in the studio, the PowerPlant ISO-12AC Pro will make sure your pedals are powered and ready.


  • High-performance model
  • 12 Individually insulated and 1 non-insulated outputs
  • Filtered and short-circuit-proof outputs eliminate noise and hum
  • High current capability for modern digital effects
  • LED monitoring at each output
  • The modular AC main output enables the connection of two or more devices via Kettle socket to plug (included in the scope of delivery) or as an AC link to the power strip
  • The total output power of the device must not exceed 27 W
  • AC circuit 100 - 240 V universal input voltage
  • Sturdy, compact aluminium housing
  • Can be used on or under pedalboards
  • Dimensions (H x W x D): 35 x 256 x 88 mm
  • Weight: 748 g@+*Connections:*
  • 4 Outputs 9 V DC, max. 250 mA (individually isolated)
  • 4 Outputs 9 V DC, max. 500 mA (individually isolated)
  • 4 Outputs, switchable 9 / 12 / 18 V DC, max. 9 V 500 mA, 12 V 375 mA, 18 V 250 mA (individually isolated)
  • 1 Output 9 V / 3 A DC for the power supply of effects with high power consumption and MultiFX devices (not isolated)
  • 1 USB-A and 1 USB-C for power supply and charging tablets and smartphones, max. 18 W@+*Cables included:*
  • 4 DC cable 30 cm
  • 5 DC cable 60 cm
  • 4 DC cable 90 cm
  • 1 Connection cable 45 cm for Line6 pedals (straight plug 5.5 x 2.1 mm to green angled plug 5.5 x 2.5 mm)
  • 1 AC Kettle plug connection (female to male)
  • 1 AC power connection cable 1.2M with EU plug
  • 1 AC connection cable 15 cm from Kettle plug to EU socket

Harley Benton Frequently Asked Questions

Want to find out more about Harley Benton? Here are the most frequently asked questions.

  • 1. Where can I order Harley Benton products?

    All of our products are exclusively sold at Thomann, Europe’s largest online retailer for musical instruments with over 20 years of experience. Thomann is located in Germany, Europe but ships worldwide. Every order at Thomann comes with a 30-day money-back guarantee and a 3-year warranty.

  • 2. How much is shipping for one or more instruments?

    Shipping costs vary depending on your location. In many cases, Thomann offers flat rates. The flat rate applies to the whole order (up to a certain weight limit), no matter how many products you order. Please visit the international shipping info page to see rates.
    For example, as of December 2020, shipping to the US for up to two electric guitars is €60, while shipping costs for a guitar and a case are generally around €80. These are guideline prices only and may vary.

  • 3. What are the delivery times to my location?

    Delivery times vary, depending on your location as well as the size of the parcel. Please see the international shipping info page to find out the average delivery time to your location.
    For example, the average delivery time to the US is 6-9 working days.

  • 4. I’m ordering from the UK, what has changed since January 1st 2021?

    Now that the UK has left the single market and customs union with the EU, we’ve updated our procedures for orders placed from customers in the UK. Based on the feedback we have received so far, Government Charges will be collected by UPS and they consist of the 20% VAT plus a small amount for the paperwork involved (usually around 2.5%). There is also an additional amount to be paid to UPS for their service, which is a minimum of 11.50 GBP. As not every order has the same customs requirement, for further information we advise that you check the costs and procedures in advance with the courier locally. Please check the Information for non-EU countries.

  • 5. When will my order be shipped?

    If your desired products are in stock, most orders are processed the same day and shipped within 24 hours after you’ve placed it.

  • 6. What happens after my order is shipped? Do I get tracking information?

    When your product is shipped, you will receive a confirmation email including tracking information. If you have a Thomann account, all this information is available in your personal customer centre.

  • 7. What happens if I receive a damaged instrument?

    All our parcels are insured for loss and damage in transit. If you receive a damaged parcel, please fill out the “return product” form to get a free return label. Take it to the office of the package delivery company stated on the return label and Thomann will replace it as soon as possible.

  • 8. How do refunds work if I’m not satisfied?

    As with every order at Thomann you can take advantage of their 30-day money-back guarantee without any questions asked. If you’re not satisfied, simply fill out the “return product” form and a return service will be arranged for you.

  • 9. Do I need to worry about CITES?

    No. Since we don’t use wood that underlies the CITES regulations for any of our products, you don’t have to worry about contravening any regulations while importing a Harley Benton instrument into your country.

  • 10. Why is Harley Benton so low priced? Is it a scam?

    Of course not. You, as a customer, benefit from the fact that we sell exclusively through Thomann and therefore we don’t need to establish and maintain a huge and expensive distribution network. That brings us closer to our goal of crafting great instruments and bringing them to you at the best prices possible.

  • 11. What is the difference between A- and B-stock products?

    A “B-Stock” is a product which has been returned by a customer within their 30-Day Money-Back Guarantee or replaced under guarantee and can no longer be sold as “A-Stock”. These products are offered at a special, reduced price, are fully functional and come with a full 3 year warranty and 30-Day Money-Back Guarantee. Customers may find that these products show traces of use or scuffing and may not come in their original packaging but will always be checked prior to shipment.

  • 12. Do you have any shops where I can buy Harley Benton products?

    Yes, there is a big variety of Harley Benton products at the Thomann shop in Treppendorf, Germany. You can also use Thomann’s live video chat to talk to an expert and get personal advice, almost as you would when visiting the shop in person.

  • 13. I’m an influencer and I would like to use Harley Benton products in my videos/stories/posts. Who should I contact?

    Our community manager will handle your request. Please use our contact form to let us know your personal information and your ideas on how you would like to present Harley Benton products.

  • 14. I would like to suggest a new Harley Benton model. Where can I write feedback to?

    The opinion of our community is important to us. We are always active on our social media platforms and if you leave constructive feedback, we will take care of it. In addition, you can also use our contact form to drop us a note.

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