Blackstar Fly 3 High Gain

Fly High Gain – The World’s Favourite Small Guitar Amp  – Now with More Channels and More Gain

Designed for metal, hard rock and punk players, the Fly High Gain takes the iconic Blackstar Fly platform into heavier territory. Expanding the original two-channel design, it introduces a powerful third channel – Nitro – delivering aggressive high-gain tones with a built-in noise gate to keep everything tight and controlled.

The familiar Clean and Overdrive channels provide the classic Fly tones players already know, while the patented ISF control lets you shape your sound from a tight American-style response through to a mid-focused British voice. A built-in analogue-style delay adds depth to solos, and the custom 3” speaker with sealed cabinet design delivers surprisingly big sound from such a compact amp.

With over 1 million Fly amps sold worldwide, the Fly range has proven that great guitar tone can come from a truly portable amplifier. Fly High Gain runs on batteries for playing anywhere, features an emulated headphone output for silent practice or recording, and can be paired with the optional Blackstar FLY 103 extension cabinet to create a larger stereo mini rig.

The iconic Fly 3 has already sold over 1 million units worldwide, setting the standard for portable guitar tone. The 
most requested new feature is for more gain and this new model delivers! 
Fly High Gain supercharges the formula for heavy players, by adding a new Nitro channel that engages a custom 
high-gain circuit for crushing saturation, tight low-end punch and articulate modern distortion – perfect for metal, 
hard rock and high-output guitars. 
Visually and sonically inspired by Series One Mk II, Fly High Gain delivers massive tone anywhere, whether 
practicing at home, jamming backstage, or travelling light. Its Nitro voicing provides an extended high-gain range 
without fizz, while a carefully tuned preamp and EQ ensure modern high-output pickups remain articulate and 
powerful. 
Ideal for metal, djent, modern hard rock, punk and alternative styles, it retains the responsive feel and versatile 
tone shaping that made the original Fly 3 a category leader and takes it to the next level.
Blackstar Amplification Ltd, Suite 2 Hawes Business Centre, Sandfield Close, Moulton Park, Northampton NN3 6EU UK   
  Telephone: +44 (0)1604 817817   Email:
New Product Information | November 2025
Key Features: 
  3 Watt compact guitar amp – battery or DC powered
  Three channels: Clean, Overdrive and Nitro
  New Nitro high-gain channel adds an extra gain stage for modern heavy tones
  ISF (Infinite Shape Feature): patented tone control that moves from tight, scooped  
US sounds to warm, British drive
  Built-in digital delay for added ambience and depth
  AUX Input to jam along with music or use as a portable speaker
  Emulated Line Out/Headphone Out for silent practice or recording
  New Series One Mk II inspired styling

Specification

Power – 3W
Channels – Clean, Overdrive, Nitro
Speaker – 1×3” custom-designed speaker
Controls – Gain, Volume, ISF, Delay Level, Delay Time
Built-in Effects – Analogue-style delay
Noise Gate – Integrated on Nitro channel
Inputs – Guitar input, Aux input (3.5mm)
Outputs – Emulated headphone / line out (3.5mm)
Extension Speaker – Compatible with Blackstar FLY 103 extension cabinet (6W stereo setup)
Power – Battery powered or optional DC power supply
Battery Type – 6× AA batteries (not included)
Unit Weight – 0.87kg
Dimensions – 170 x 128 x 102mm