Uploaded May 2023 | Updated September 2026, 3 days ago

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This brief follow up video to my series on building a replica of Brian May’s legendary Deacy amplifier illustrates some of the tones you can get from it when paired with a Red Special guitar and suitable treble booster.

If you want to find out why Brian May enthusiasts hold this DIY practice amp built by John Deacon of Queen in such high regard, please watch part 1 of the series which serves as an introduction:

youtube.com/watch?v=Bdxc_GIqIfE

Although I own a KAT Deacy amplifier replica, I built my own DIY Deacy amp replica over winter 2022/23 using a circuit board kit by Knight Audio Technologies (KAT), salvaged 1960s vintage ELAC loudspeaker and tweeter units and a DIY veneered chipboard cabinet. The build project is covered in two videos:

Part 2 - Circuit Board Assembly and Discussion
youtube.com/watch?v=jkbRkom7AXE

Part 3 - Making the Cabinet and Final Assembly
youtube.com/watch?v=5E_zpUDWBpE

I have built my own Brian May Red Special guitar and own a replica KAT Brian May stage rig and other Brian May guitars and musical equipment. You can find out more about them at my website: dsgb.net

Thanks to Ricky Peraza of Miami, FL for demonstrating my DIY Deacy and Luke Holwerda of Phoenix, AZ for recording the clips. Luke organises a US Brian May Red Special enthusiast meet-up which might interest you. Check out his YouTube channel @Lukeyourself and Facebook page:

youtube.com/user/Lukeyourself/videos
facebook.com/LukeHGuitar

#BrianMay #Deacy #Deacyamp #JohnDeacon #dsgb #DougShortGuitarBlog