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Old 5th May 2008, 10:04 AM   #1
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Default Gabriel build

Hi all,

This is my first build so I thought, for what its worth, I would post details of my efforts for the world to see / admire / laugh at. Also, as the sum total of my knowledge is pilfered from here I felt the need to give something back.

For no other reason than the variety of designs available for the Fostex FE127E (at http://www.planet10-hifi.com - thanks folks) I decided to start with a pair of those.

I chose the Gabriel (see, http://www.frugal-horn.com/spawn-plans.html) as it looked easy to build and I really fancy the idea of a horn.

So here goes, any tips, advice or questions post 'em here.

Al
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Old 5th May 2008, 11:46 AM   #2
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It's not really a horn; more a waveguide. But it will sound rather like one.
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Old 5th May 2008, 02:04 PM   #3
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Hi Alistair72.

Looking forward to it. I've got a pair of FR125s in small ported boxes here. As the saying goes, I will show you mine if you show me yours!

I'm currently on the Wirral if you get time.

John
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Old 5th May 2008, 03:26 PM   #4
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The drivers are running in, sat in the box they came in.

A bit sibilant and not much bass unless you lift one up, but I have heard much worse in gear costing much more.

So considering they are both in an un-ported box knocked up with sticky tape - I think it bodes well.
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Old 5th May 2008, 03:26 PM   #5
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Quote:
Originally posted by john blackburn
Hi Alistair72.

Looking forward to it. I've got a pair of FR125s in small ported boxes here. As the saying goes, I will show you mine if you show me yours!

I'm currently on the Wirral if you get time.

John
Cheers John, I am currently under moderation (still - hint to the powers that be) so don't appear to be able to post normally or do pictures. But I have a fist full of pics and I have only done a few joints.

We could have a get together with our speakers at a motorway services. It would be like Chorley FM... (Pheonix Nights ref for southerners/foreigners).

Alistair
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Old 5th May 2008, 03:29 PM   #6
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Alistair72, you have been released to the hounds. Go forth and multiply.
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Old 5th May 2008, 04:46 PM   #7
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Ok still working out how to post pictures, but thanks to Cal for rubbing aniseed on my legs and setting me running...

Here is my running in rig for the drivers
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Old 5th May 2008, 04:50 PM   #8
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The planning phase.

I thought about this for a bit and decided a good cutting sheet was the way to go.

Also the 'most excellent' timber yard near me had no issues with cutting all the pieces for me including the odd angles.
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Old 5th May 2008, 04:51 PM   #9
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Default Its all there

So these are the parts for one cabinet.
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Old 5th May 2008, 04:53 PM   #10
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Default The first bond

The first piece being glued together, the top/bottom of the the box section.
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Old 5th May 2008, 05:03 PM   #11
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Default Taking shape...

I read this book on glue the other day, fascinating, I just couldn't put it down - Tommy Cooper I think

I really didn't intend doing this much - I'm doing an MSc part time and have short time scales for my assignment work - I had planned on getting a work bench and a few more clamps and some off cuts to practice on. So I guess you can say I am hooked now.

I had asked about glue on the Spawn thread, but thought that being a newb the ability to move stuff around outweighed the speed benefits of a quick set glue. I am trying to take this one slow and not make any silly mistakes.

This'll be it for a week or so as I have a ton of work for my MSc. However I have some fun with a router to come, need to sort out the bracing and figure out how and what to stuff it with.

Oh and mustn't forget the binding posts...

Thanks for plans, advice, comments and encouragement thus far,

Al
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Old 22nd November 2008, 11:03 AM   #12
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Hi Folks,

I'm back. Been dead busy on other stuff, but have loads of pics and few questions before the final gluing.

Namely, how much stuffing should these have? It'll be a pig to get stuff out or in one the sides go on. So I want to be as right as I can.

I got a load of 1 inch thick wool wadding of a mate and have lined the front of the box i.e. back of the driver and both sides of the baffle, but this looks a bit over-kill to my uninitiated eye. I can post pics of what I have once I figured out how to do so again.

Cheers,

Al
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Old 22nd November 2008, 11:50 AM   #13
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1in material is a bit OTT. As I've said before on the subject, top, back, & one side-wall. 1/2in wool felt or carpet underlay is ideal, don't block the throats. Do not line the front baffle.
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Old 22nd November 2008, 01:47 PM   #14
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Click the image to open in full size.

Okay, I understand the cardboard box, the CD player, the Sonic T-amp and the Prodigy - "Fat of the Land" CD, but what was the hammer for?!

LOL!
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Old 22nd November 2008, 02:11 PM   #15
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Quote:
Originally posted by Scottmoose
1in material is a bit OTT. As I've said before on the subject, top, back, & one side-wall. 1/2in wool felt or carpet underlay is ideal, don't block the throats. Do not line the front baffle.
Cheers Scott,

I was about to completely over stuff them. The material will tear apart quite easily so I can thin it out.

I am presuming the front is the bit with the driver attached. Is this the front baffle? Do I need to line over the little triangular piece (that stops throat to throat chat) in the back ensuring that I don't block the throats.

All a bit confusing for a newb - but I am getting quite excited to get them running now.

Thanks,

Al


Quote:
Originally posted by chops
Click the image to open in full size.

Okay, I understand the cardboard box, the CD player, the Sonic T-amp and the Prodigy - "Fat of the Land" CD, but what was the hammer for?!

LOL!
The hammer was just for scale - or I might have been hanging some pictures that week
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Old 22nd November 2008, 02:27 PM   #16
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Yes it is, & yes, you can, respectively.
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Old 23rd November 2008, 10:32 AM   #17
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Calmed it down to look something more like this.

Cheers Scott, you're a speaker saver...
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Old 23rd November 2008, 10:33 AM   #18
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Another pic
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Old 30th November 2008, 04:04 PM   #19
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Default Getting there

A bit more activity this weekend.
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Old 30th November 2008, 04:05 PM   #20
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Starting to look right
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Old 30th November 2008, 04:12 PM   #21
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Side on
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Old 30th November 2008, 04:18 PM   #22
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Default AT LAST




Woohoo! I've done it...

Now it is in no way perfect, but then it was only really intended as a first stab and not a final offering. So it will be painted to fit in with the decor and played with so I can work out what I want to do next.

Had brief listen. I only have one at the minute (the second one is drying) so i just swapped it for one of my office speakers - driven from the Sonic-T - it sounds very smooth with a lot more bass than I had thought (but I am in a small room).

I'll give you the full low down - build errors and sonic performance - once I have a pair.

Planet10 and Scott in particular, THANKS
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Old 1st December 2008, 02:02 PM   #23
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looks good. cant wait to hear your full impressions once you get a pair and a few hours of listening.
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Old 1st December 2008, 03:10 PM   #24
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Nice.
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Old 1st December 2008, 04:20 PM   #25
Aengus is offline Aengus  Canada
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Alistair72, very nice build.

Did you fill the triangular top-and-bottom voids with anything?

Regards.

Aengus
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