--- product_id: 47500459 title: "Blackstar Power Supply AC DC Adapter for Fly 3 Amplifier, Guitar Bluetooth & Acoustic" brand: "keen eye" price: "€ 35.14" currency: EUR in_stock: true reviews_count: 8 category: "Keen Eye" url: https://www.desertcart.pt/products/47500459-blackstar-power-supply-ac-dc-adapter-for-fly-3-amplifier store_origin: PT region: Portugal --- # 18W power output 100-240V universal input 46-inch cable length Blackstar Power Supply AC DC Adapter for Fly 3 Amplifier, Guitar Bluetooth & Acoustic **Brand:** keen eye **Price:** € 35.14 **Availability:** ✅ In Stock ## Summary > ⚡ Power your sound, own the stage—no batteries required! ## Quick Answers - **What is this?** Blackstar Power Supply AC DC Adapter for Fly 3 Amplifier, Guitar Bluetooth & Acoustic by keen eye - **How much does it cost?** € 35.14 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/47500459-blackstar-power-supply-ac-dc-adapter-for-fly-3-amplifier) ## Best For - keen eye enthusiasts ## Why This Product - Trusted keen eye brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long Reach, No Limits:** Generous 46-inch cable lets you position your amp exactly where you want - • **Compact & Travel-Ready:** Lightweight, wall-mountable design built for on-the-go musicians - • **Battery-Free Jam Sessions:** Ditch disposable batteries and enjoy uninterrupted practice or gigs - • **Plug In Anywhere, Play Everywhere:** Universal 100-240V input supports global use without a hitch - • **Power Your Fly 3 Series with Confidence:** Seamless compatibility with Fly 3, Fly 3 Bass, Fly 3 Acoustic & Bluetooth models ## Overview The Blackstar Power Supply AC DC Adapter delivers a reliable 18W output with a 46-inch cable, designed specifically for Blackstar Fly 3 series amplifiers including Bluetooth and acoustic models. Its universal 100-240V input ensures worldwide compatibility, making it an essential travel companion for musicians seeking uninterrupted, battery-free performance. ## Description Here we have for sale a power supply for the Blackstar Fly 3, Fly 3 Bluetooth, Fly 3 Bass, and Fly 3 Acoustic Guitar Amplifiers. Save your batteries for when you're on the go. Input: AC100-240V 50/60Hz Compatible models: Blackstar Fly 3 Blackstar Fly 3 Bluetooth Blackstar Fly 3 Bass Blackstar Fly 3 Acoustic *Does not work with the larger Blackstar Superfly ** Also we've had a few customers contact us about the LED light not working. The power supply case has a lens for an LED light but the circuit does not have a an LED light inside. So this is normal for there to be no light coming through the lens. Review: Blackstar Power Supply works! - This product is working as advertised. Review: The value and quality - Perfect fit for my amp ## Features - Works with Blackstar Fly 3 Series Amps. - Blackstar Fly 3 - Compatible with Blackstar Fly 3, Fly 3 Bass, Fly 3 Acoustic - Input 100-240V 50/60Hz - UL Listed - Cable length 46" inches ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076F3YQJP | | Best Sellers Rank | #7,218 in Musical Instruments ( See Top 100 in Musical Instruments ) #2 in Electric Guitar Power Amps #2,467 in Music Recording Equipment | | Brand | Keen Eye | | Built-In Media | 2 x 10ft Power Cords | | Color | Black | | Compatible Devices | Amplifiers | | Compatible Phone Models | Fly 3 | | Compatible Power Plug Type | Type A - 2 pin (North American) | | Connectivity Technology | Bluetooth | | Connector Type | barrel connector | | Current | AC | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.7 out of 5 stars 551 Reviews | | Enclosure Material | Plastic | | Form Factor | Compact rectangular shape with fixed cable | | Frequency Range | 50-60 Hz | | Included Components | 2 x 10ft Power Cords | | Input Voltage | 240 volts | | Item Weight | 8 ounces | | Main Power Connector Type | 2 Pin | | Manufacturer | Keen Eye, Inc. | | Mfr Part Number | BlkStrPS | | Model Number | 4334183865 | | Mounting Type | Wall Mount | | Number of Items | 1 | | Number of Power Levels | 1 | | Output Voltage | 9 volts | | Power Plug | Type A - 2 pin (North American) | | Power Source | Corded Electric | | Special Feature | Travel | | Special Features | Travel | | UPC | 810155030001 | | Unit Count | 1 Count | | Wattage | 18 watts | ## Product Details - **Brand:** Keen Eye - **Color:** Black - **Compatible Devices:** Amplifiers - **Compatible Phone Models:** Fly 3 - **Connector Type:** barrel connector - **Included Components:** 2 x 10ft Power Cords - **Input Voltage:** 240 Volts - **Number of Items:** 1 - **Special Feature:** Travel - **Wattage:** 18 watts ## Images ![Blackstar Power Supply AC DC Adapter for Fly 3 Amplifier, Guitar Bluetooth & Acoustic - Image 1](https://m.media-amazon.com/images/I/71xxzNmD6EL.jpg) ## Questions & Answers **Q: How long is the power cable?** A: Thanks for your question. The length of the mains cable that goes from the wall outlet to the power supply is about 3 foot 10 inches. The cable that comes from the power supply to the amp is about 3 foot 8 inches. The total length from end to end is about 7 foot 9 inches. **Q: Does this power supply cause humming issues with the fly 3** A: Here's a video of the amp using the power supply with both the clean and gain channels. It operates nice and quiet. **Q: Does it work for a 220V input (in Argentina)?** A: Input is 100V-240V 50/60Hz so it should work well **Q: I am in the usa, will it come with nema 120vac cord or a nema 240vac cord?** A: 120volt ## Customer Reviews ### ⭐⭐⭐⭐⭐ Blackstar Power Supply works! *by S***N on January 15, 2026* This product is working as advertised. ### ⭐⭐⭐⭐⭐ The value and quality *by R***R on October 14, 2025* Perfect fit for my amp ### ⭐⭐⭐⭐⭐ Small issue in the beginning, the seller fully corrected the issue with great customer service! *by G***R on May 11, 2019* Update!!! This seller has excellent customer service. I told them about my issue, they contacted me the next day, and in less than a week they had sent me a fully functioning replacement FREE OF CHARGE NO HASSLE. The new cord works perfectly and I suspect that the bad cord (read original review below) was a rare defect, possibly damaged during shipping or maybe even in the factory. I say rare defect because I have had tons of these cords in the past and never had any issues. Aside from the very minor inconvenience, I am EXTREMELY pleased with this purchase and the customer service. [So when I initially plugged it in to the amp, the adapter didn't work. I wiggled the cord from the wall to the power block and it would turn on and off. That cord has a short in it, brand new. So I had an extra cord from an old laptop, and the power block works fine and without any hum... PROS: the adapter works well CONS: the cord from the wall WAS FUBAR upon arrival.] ## Frequently Bought Together - Blackstar Power Supply AC DC Adapter for Fly 3 Amplifier, Guitar Bluetooth & Acoustic - Blackstar Fly 3-3-watt 1x3 inch Compact Mini Guitar Amplifier w/ 2 Channels and Patented ISF - Black - Blackstar Fly 3-3-watt 1x3 inch Compact Mini Bass Amp w/ 2 Channels and Emulated Line Out - Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/47500459-blackstar-power-supply-ac-dc-adapter-for-fly-3-amplifier](https://www.desertcart.pt/products/47500459-blackstar-power-supply-ac-dc-adapter-for-fly-3-amplifier) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-08-31*