stepped horn build

no mid-way progress reports with this one, rich and sid came round with wood at around 7 pm, we had us a box by 1 am. without doubt the fastest turnaround for any project in my house! it's got me wondering why stuff usually takes an eternity.





we'll bung the last surviving beyma 12lx60 in it tomorrow and let y'all know what it sounds like. it is to be integrated into rich and sid's living room pa; b&c de25 on 18sound xt horn, alpha 8mr on a jan audio horn for mid, rcf l12p530 reflex on upper bass and now something to do the bottom end some justice.

we reckon it should sound very nice, but i tell you one thing, it's bloody tall! i was somehow imagining it would be ~25 cm shorter, odd as 1.7m is 1.7m is 1.7m... but yeah, that is a lot...

james.

Now the other half wants some furniture for the lounge.  If I made one of those, or maybe two with some shelves inbetween, maybe I could sneak it into the house! 

Owain: pop up to mine with a Ciare and some MDF and we'll try to beat 6hrs build time! 

Also, I'm wondering why the stepped piece can't be done with one long angled piece?


Edited by ceharden - 10 January 2007 at 6:10am

If you get it right, you could also cut a load of angled braces in one go too.

I've done a quick Hornresp sim, ignoring the driver in mouth bit.  The output looks a lot nicer without the direct radiating driver component but to add a sealed rear chamber would significantly increase the size of the cab (it would need to be about 60L or something silly).

I guess this design could be adapted to fit into many spaces.  Maybe fold in half again to become a coffee table sub!

just been trying out the stepped horn for the past couple of hours.  there not bad. plays stupidly low. its got a beyma lx60 in it rather than a ciare.
played system check and it seemed to have a bit of a peaky response but nails 35hz and down...

generally it sounds good. not sure on the delay front i guess its somewhere between  0 and 3 M 40cm , im sure a happy point will be found.
its at least allayed any fears i had about wicked ones not being right as i reckon if given the choice id go for a WO, especially for PA use, although james seems set on building 4, for Pa use, which would be interesting :)

if anyones wanting to make their home stereo 'proper' id build one of these simply because it only takes up a small ammount of floor space.

if you want a coffee table build a wicked one (with lx60's as they sound the most stereo) , alternatively build a stepped horn if you want a sideboard. its all aqbout the type of furniture you require and the WAF factor, ive seen a WO built to furniture grade used as a coffee table and it looked grand, alternatively build one of these :)

Hello,

Edited by Contour - 11 January 2007 at 1:18pm