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Free birch skeletal SP10 build

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Category: Plans
Forum Name: New Projects Forum
Forum Description: Forum for new speakerplans projects, in memory of Tony Wilkes, 1953 - 2014
Printed Date: 05 March 2024 at 4:16am
Software Version: Web Wiz Forums 12.06 -

Topic: Free birch skeletal SP10 build
Posted By: 1TrueTree
Subject: Free birch skeletal SP10 build
Date Posted: 06 July 2023 at 1:19pm
Hi SP,
I've been given a fair bit of 24mm birch at uni so restarting a project which has been on the back burner for a few years now! I've been reading SP for so long but this will be the first time documenting any build and hopefully getting to a usable system. 

I bought a pair of sp10 flares last year and b&c 10md26 which I would like to turn into a skeletal trap cab with a 1"cd and 60x40 horn(which I'm about to order from blue Aran with a few other bits like nl4s). 

Prioritising keeping the weight down so 24mm ply is a great start! I have limited build experience but this will be the first time utilising a workshop with a decent compliment of tools so it should be fun! I even have the potential of free CNC cutting but when I went to draw up a design on f360 last night I found my licence had expired... I'll find a way round that but in the meantime just going to share a few pics to get started.


One of the flares which I plan to drill for m5 countersunk bolts and spray today. Other flare is not drilled at all.

The flares have been kicking round for a while unused but seem complete with phase bungs and backbowls.

The one confusing thing is that the backbowls don't accommodate the 10md26 which was the recommended driver as far as I know. Other driver mentioned was a fane studio 10m which I get the feeling would fit... So I plan to make a ply spacer which will also support the weight of the driver on the end of the flare. 

This is in the workshop where I have access to build. Tracksaw, router, lots of clamps and a spray booth. 7 pieces of 24 BB birch approx 800x400 to use as well as a lot of offcuts.

Importantly the only reason this build is happening now is free wood and to have a bit of fun making a DIY cab as well as offering sawdust unto the ply gods that doth provide!Tongue

I'll be back with the digital equivalent of a fag packet sketch later on so you can see what I'm envisioning. All input welcome, thanks all for the inspiration over the years!

Google: + keywords

Posted By: DMorison
Date Posted: 06 July 2023 at 2:10pm
A couple of thoughts.
1: Most loudspeaker cabs are built in 18mm birch; some smaller ones like mid-highs even in 15mm, so your 24mm cabs will be a lot heavier rather than lighter.
2: Can't see your images at all, you may need to go to your Google drive and re-set sharing/viewing permissions, or just host on somewhere like Imgur that's better suited to the job.

Apart from those, sounds interesting and do keep us informed how it goes!

Posted By: KDW32
Date Posted: 06 July 2023 at 5:50pm" rel="nofollow -

Is cool for hosting images for forums

Posted By: snowflake
Date Posted: 06 July 2023 at 6:33pm
sell the 24mm ply and buy some thinner stuff.

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