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David McBean View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote David McBean Quote  Post ReplyReply Direct Link To This Post Posted: 09 July 2020 at 8:38am
Originally posted by smoore smoore wrote:

How do you add a path length difference in hornresp between port and horn?


Calculate the combined power response then select the Tools > Output > Combined menu commands. Adjust the Path slider and press the OK button. Press F9 first if you want to permanently save the path value.

In the Loudspeaker Wizard, select the Power, Chamber and Combined options and adjust the Path slider.


Edited by David McBean - 09 July 2020 at 8:39am
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bob4 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 23 July 2020 at 8:31pm
Wow, nice one! I see flared ports Tongue
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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2020 at 9:06am
Originally posted by bob4 bob4 wrote:

Wow, nice one! I see flared ports Tongue


yes I have some of the 6" precision sound flares. two of those back to back gives about the right port length.

I'm tweaking the plans to get it out of two sheets of 8'*4'. means making the access hatch out of aluminium and losing a couple of braces.
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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 25 July 2020 at 4:44pm
it took a lot of tweaking but managed to lay it out onto two sheets of ply. will also need 4m of 44mm*144mm planed timber, 1m of 94mm*94m, 475mm*475mm aluminium panel (10mm or 12mm). will try and build it later in the summer.

Edited by snowflake - 26 May 2021 at 4:06pm
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 04 September 2020 at 12:51am
B&C 15RBX100 also looks good for this and is half the price of the BMS 15N830v2


must get round to building a prototype!
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Teunos View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Teunos Quote  Post ReplyReply Direct Link To This Post Posted: 04 September 2020 at 9:15am
Have you considered how you are going to mount the drivers in this arrangement?
Attraction/repulsion of the magnets will make assembly a pain especially if using ferrite drivers.
Best regards,
Teun.
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DMorison View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMorison Quote  Post ReplyReply Direct Link To This Post Posted: 04 September 2020 at 1:27pm
Originally posted by snowflake snowflake wrote:

B&C 15RBX100 also looks good for this and is half the price of the BMS 15N830v2


must get round to building a prototype!

The RBX's are not in the current catalogue, so it may be that it'll become unavailable once current stock at sellers is gone.
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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 04 September 2020 at 1:28pm
the whole driver baffle will be removable so I can mount the driver on the baffle before putting it into the speaker. bolts connecting baffle to the box can be positioned to make it easier to tighten the bolts. Rear panel and front panel are removable. I was imagining turning the box on one side and bolting down one driver, then flipping it 180 degrees and sliding the the other driver in underneath it and bolting it down. magents won't overlap that much but will only be 15mm clearance at one point. maybe I should cover the first with something if there is any danger of them attracting each other and chipping the magnets.

Edited by snowflake - 04 September 2020 at 1:37pm
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 04 September 2020 at 1:49pm
with B&C 15RBX100 driver. theres slightly more clearance than shown as the edge of the magnet is angled.

EDIT: looks like B&C have recently discontinued the 15RBX100




Edited by snowflake - 04 September 2020 at 2:32pm
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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 14 September 2020 at 12:33pm
Beyma 15LEX1600Nd and B&C 15SW100 will both outperform the BMS and are cheaper. Confirmed they will fit after getting more detailed drawings with magnet dimensions.Also Beyma 15LEX1600Fe - slightly enlarged rear chamber so that it will fit with 10mm clearance between magnets.

15LEX1600Nd highest output, lightest 20mm clearance between magnets 373mm
15SW100 (8R and 4R) 10mm clearance 374mm bolts 15mm flange
LF15X401 loads of clearance between magnets (no demodulating ring) 371-376mm 15mm flange
15LEX1600Fe cheapest to buy 10mm clearance 373mm 16mm flange inc. gasket
15TBW100 (8R and 4R) cheapest recones, heaviest, 5mm clearance 374mm 14mm flange

LaVoce WAF154.00 and WAN154.00 (373mm) but not readily available in UK


Edited by snowflake - 09 June 2021 at 4:43pm
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snowflake View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 09 June 2021 at 10:33pm
finally building it Smile


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concept-10 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote concept-10 Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2021 at 5:00pm
Excellent news. Looking forward to it 😀 
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