BB-8 Footnote Amp

BB-8 Footnote Amp


Project Category:
Guitar and Bass Speakers

Project Level:

Project Time:
1-8 Hours

Project Cost:
Under $100

Project Description:
Small guitar amp from a recycled bread box and using an 8 inch speaker suitable for bass, electric or acoustic guitar practice.

Design Goals:
This was a first project with the Footnote amp for a gift to a family member. The goal was a small practice amp that was decently portable and fun to use. I used a different driver from the bundle since the user plays more bass guitar and I wanted him to get more use out of the gift in the end. The speaker should allow him to play bass or acoustic/electric.

Driver Selection:

Enclosure Design:
A bread box from a second hand store that I sealed and painted. I knocked out the back panel for an open sound.

Enclosure Assembly:
No assembly needed. I screwed the bread door shut, painted the box, and carpeted the exterior.

Crossover Design:

Very happy with the results myself. After playing with it I will likely make another portable amp for myself as well. I like the added features of a cable tester and line input. Headphone output is something I will use when I build a second one for myself. Range of the driver is great for a small practice setup, and it gets loud enough with the speaker’s 95 dB sensitivity.

About the Designer:
I am a member of the Parts Express Tech Support Team and have enjoyed building small projects like this for some time.

Project Parts List:

Celestion Eight 15 8″ 15W Guitar Speaker 8 Ohm
FootNote Electric Guitar 5 Watt Amp Assembly – No Power Supply
9 VDC 1000mA AC Adapter Power Supply 2.1 x 5.5mm Center Negative (-)
Parts Express Steel Mesh 2-Piece Grill for 8″ Speaker Black
Speaker Cabinet Carpet Covering Charcoal Yard 54″ Wide
Penn-Elcom 2359BK Surface Mount Spring Loaded Handle 1″ dia. Grip Black

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