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Multi-Way Conventional loudspeakers with crossovers

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Old 24th December 2012, 04:33 AM   #41
56oval is offline 56oval  Australia
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Location: Werr,i,bee sth ,Vic ,Australia
Quote:
Originally Posted by Bon View Post
Hi 56oval. Any progress to report on the project?
HI Bon
All the best for Chrissy .

Project slowed down again lack of funds being diverted out side audio projects .

The Alpine SWR 12D4 drivers have been ordered should arrive end of Jan .Worked out how much ply I need for the 15" bass cab's and Tapped Horns .6 sheets of Russisn BB 18mmx2440x1220 and 3 sheet's of furntiure grade ply 18mmx3050x1530 .
http://www.alpine-usa.com/product/view/swr-12d4/

A couple weeks aga went over to Pauls place with Roger to give a hand putting the S3 Synergy horns together . We didn't get them finished but Paul's managed to get more work done .
Red Spade Audio
Paul worked out the sims and drew the Tapped horn design for me . I'll be using a pair of them their 600x400x2400mm . It a dual opposed design where the drivers mount theres 2 end caps covering the driver magnets which add @ 300mm to the over all width .
Now to get them into the corners of the lounge without the wife noticing

Go on leave mid Jan so hopefully get stuck into the cabs then .

Cheers

Mal

P.S The family has a new member so I've been a little bit distracted by he .

Last edited by 56oval; 24th December 2012 at 04:47 AM. Reason: added link
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Old 24th January 2013, 01:15 AM   #42
56oval is offline 56oval  Australia
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Default Update

It been a while ,but today I received the ply for the bass 15" bass cabs and the Russian birch formply for the tapped horns .Bought myself a Festool TS55 saw and a number of their rails systems these should help me cut straight ,I hope .
Click the image to open in full size.

CHeers
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Old 24th January 2013, 01:24 AM   #43
Upfront is offline Upfront  Australia
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I've found that drinking light beer instead of heavy helps with making straighter cuts!
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Old 24th January 2013, 01:26 AM   #44
_henry_ is offline _henry_  Australia
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im more interested at the festool , please show us ur latest tool
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Old 24th January 2013, 02:12 AM   #45
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Originally Posted by 56oval View Post
Each section divided up ,in white .
Click the image to open in full size.

CHeers
Too late but i need to tell that there's no need to make separate section or division for tweeter, because tweeter is already a close back driver. You can make the tweeter and mid in the same room, or you can patch a small box at the magnet area of mid driver so that the whole volume of air in the total enclosure will be used by bass driver..'That will make a good response in the low section.
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Old 24th January 2013, 05:38 AM   #46
56oval is offline 56oval  Australia
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Quote:
Originally Posted by Upfront View Post
I've found that drinking light beer instead of heavy helps with making straighter cuts!
I don't drink bear ,so I'm left out in the open on cutting straight
Quote:
Originally Posted by _henry_ View Post
im more interested at the festool , please show us ur latest tool
I might post a picture of the Festool in anger or a video of it flying across the shed .

Quote:
Originally Posted by Ricdelros View Post
Too late but i need to tell that there's no need to make separate section or division for tweeter, because tweeter is already a close back driver. You can make the tweeter and mid in the same room, or you can patch a small box at the magnet area of mid driver so that the whole volume of air in the total enclosure will be used by bass driver..'That will make a good response in the low section.
The divide acts as a brace and I've ended up with the volume needed .I was going to have the R1 sitting on an open baffle above the 6.5" mid but it looked like an add on . I feel the R1 looks better intergrated within the cabinet .

Cheers

Mal

CHeers
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Old 24th January 2013, 08:28 AM   #47
terry j is offline terry j  Australia
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Originally Posted by 56oval View Post
I don't drink bear
Mal

CHeers
fair enough..what about moose? (was gonna say beaver but thought I'd get into trouble...so lucky I did not say that eh?)

Oh, I remember now, cider was it not?

Guess that beats XXXX gold tho. Geez I hate it when people give me that.
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Old 24th January 2013, 09:50 PM   #48
56oval is offline 56oval  Australia
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Originally Posted by terry j View Post
fair enough..what about moose? (was gonna say beaver but thought I'd get into trouble...so lucky I did not say that eh?)

Guess that beats XXXX gold tho. Geez I hate it when people give me that.
Bear bile is a required taste .

I told Nick not that one .Hows the music theory going still tinkering on the ivorys .

Cheers

Mal
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Old 24th January 2013, 10:07 PM   #49
terry j is offline terry j  Australia
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yeah, tbh the system simply does not get turned on any more. spend all my time on the music theory and tinkling the goanna.

that is required too!
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Old 31st January 2013, 10:10 AM   #50
56oval is offline 56oval  Australia
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Default Cutting update

Hi

Today a friend came to help me cut down the oversize ply sheets for the 15" bass cab's .We cut down to sheet's to make them easier to handle to cut them down further .
I used the Festo TS55 saw and parallel rail system ,made a couple of test cuts then adjusted the guides for calibration .Then tested the calibration making the bench top out of Birch form ply .Came up a treat diagonal measurements spot on .Next we moved onto cutting the cab's 14 cuts ranging from 400mm to 660mm .Making each piece individual would of been a real pain in the ar5e .
Next to rip all the cuts down further .
Click the image to open in full size.
Click the image to open in full size.

Testing the widths
Click the image to open in full size.

CHeers
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