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First build 15 inch sub

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Darkstar View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Darkstar Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2017 at 12:31pm
Originally posted by JonB67 JonB67 wrote:

I was a little concerned it might be too close to the vent in the magnet but as no one's said it'll be a huge problem I'm guessing it's fine!

That's actually a rightful concern, it'd be far more worse if it was a whole panel though, as long as it can "breathe" through the sides it's ok.
The problem with having the port so close to a wooden object is that it can absorb a lot of heat which is going directly back to the voicecoil. However it should be no real issue unless you overpower the thing, which you're not supposed to anyway.

Edited by Darkstar - 11 May 2017 at 12:32pm
Bass =/= Enough
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cravings View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2017 at 1:57pm
i asked before how close to the vent could i go, and i'm sure i was told that once there was the same distance as the diameter of the vent, it'd be fine.

you've loads of room there.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dub Specialist Sound Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2017 at 8:43pm
Nice works bro tbh

keep it up Thumbs Up
Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bass*en*mass Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2017 at 9:40pm
lovely build so far.. wouldnt worry the slightest re bracing/distance, seems fine to me..

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Post Options Post Options   Thanks (0) Thanks(0)   Quote JonB67 Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2017 at 10:45pm
Thanks for all the positive comments.

Can't wait to get them running. If they dont sound better than my peaveys I'm going to be upset!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jammin75 Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2017 at 11:31pm
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feel the vibes !!!   "Who Feels it Knows it"            Strong like Lion              
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JonB67 Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2017 at 2:58am
Well it's up and running at an event. Tighter, cleaner more punchy And goes lower than the peavey it's replacing.

What difference does a brand new driver make? How do they change as they bed in?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2017 at 7:50am
I guess the general consensus is that fs shifts a little bit down as the suspension gets worked out and slightly less stiff?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote triumphant Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2017 at 10:09pm
Originally posted by JonB67 JonB67 wrote:

Thanks for all the positive comments.

Can't wait to get them running. If they dont sound better than my peaveys I'm going to be upset!


Would you say that you'd be a little peaved?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JonB67 Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2017 at 10:16pm
Ha Ha!

Yeah I would have been!

As it was they sounded better from the start and six hours later at the end if the night they were wiping the floor with them. Noticeable difference after that time.    The comparison made the peavey sound like it was playing through wet carpet.

I now need to tune the boxes proper so got to read up on rew and impedance measurements.

I'll update as I go!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bitSmasher Quote  Post ReplyReply Direct Link To This Post Posted: 15 May 2017 at 12:16am
Such a nice build. As much as I want to call out the bracing as superfluous woodwork, we're all guilty of it in one way or another...
"Battery Acid Sound System" blog hopefully happening in 2017
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JonB67 Quote  Post ReplyReply Direct Link To This Post Posted: 15 May 2017 at 7:32pm
The bracing was inspired somewhat by csg's thread on here. I tried to maximise what the bracing could do for minimising any vibration of the box without adding too much weight.

I've got lateral *and* cross bracing in one arrangement and the boxes are an easy lift. In use I put my hand on them and the vibration is minimal in all areas as they are clearly very stiffened by the bracing structure.

Superfluous maybe but it's certainly achieving what I wanted!
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