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Old 10th September 2007, 07:39 AM   #71
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I see that the dip is still there at 15 degrees and still a small depression at 30 degrees. This would increase the chance to perform some type of EQing (it would definitely not be advisible if the measurements had shown a hump off-axis for instance).
EQing could be done the passive way if the tweeter has to be padded down (i.e. if it is more efficient than the midrange or midwoofer they are to paired with).
Maybe this is an option for you since the box looks gorgeous as is.

Regards

Charles

Edit: Or listen to the speaker off-axis form the beginning, SAF is increased by speakers that are not toed - in.
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Old 10th September 2007, 11:53 AM   #72
dlr is offline dlr  United States
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Default Re: Re: Bring it to DIY NE

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Originally posted by ttruman



Appreciate the invite and the offer. I am sure information about DIY NE will be posted on the site when it becomes available. Where should I look?
I should make inquiries this week on the boards as to interest and date, almost quaranteed to be in October. Due to my wife's schedule it will be either the 6th or the 20th.

Once the date is set I'll update my web site section found DIY New England.

Dave
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Old 11th September 2007, 09:48 PM   #73
ttruman is offline ttruman  United States
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Look forward to it. I'll keep my eyes open.

Tim
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Old 11th September 2007, 10:19 PM   #74
ttruman is offline ttruman  United States
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Quote:
Originally posted by phase_accurate
I see that the dip is still there at 15 degrees and still a small depression at 30 degrees. This would increase the chance to perform some type of EQing (it would definitely not be advisible if the measurements had shown a hump off-axis for instance).
EQing could be done the passive way if the tweeter has to be padded down (i.e. if it is more efficient than the midrange or midwoofer they are to paired with).
Maybe this is an option for you since the box looks gorgeous as is.

Regards

Charles

Edit: Or listen to the speaker off-axis form the beginning, SAF is increased by speakers that are not toed - in.
Thanks for the kudos on the box. I will have to consider padding down if I want to avoid modifying the box. However that dip is right where I would like to crossover. Crossing the C96 mid beyond 3K isn't the best solution either. I have tried various cross overs and filters but it's been difficult to tame.
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Old 13th September 2007, 07:46 PM   #75
bssk is offline bssk  United States
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Hi ttruman,

I am facing a similar issue with my speaker. I have an Accuton C292-6 7 inch Mid/Bass and Accuton C223-6 1.2 inch Tweeter. I had built a 2 way sealed box monitor (crossover at 2kHz), but the high frequencies were rolling off at around 9kHz. I am in Boston area, MA; kindly let me know if you get a solution to this problem.

Thanks,
BSSK
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Old 14th September 2007, 11:37 AM   #76
ttruman is offline ttruman  United States
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Quote:
Originally posted by bssk
Hi ttruman,

I am facing a similar issue with my speaker. I have an Accuton C292-6 7 inch Mid/Bass and Accuton C223-6 1.2 inch Tweeter. I had built a 2 way sealed box monitor (crossover at 2kHz), but the high frequencies were rolling off at around 9kHz. I am in Boston area, MA; kindly let me know if you get a solution to this problem.

Thanks,
BSSK
Hi BSSK,

No problem. It would be helpful to learn from you as well. I am curious...what do the free air measurements on your C23's look like?
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Old 16th September 2007, 01:01 PM   #77
dlr is offline dlr  United States
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Default DIY NE will be Oct 20th

Quote:
Originally posted by ttruman
Look forward to it. I'll keep my eyes open.

Tim
I'll update my web pages soon, but not much will change from last year. Info can be found at the link.

DIY New England

Dave
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Old 6th June 2008, 12:51 PM   #78
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Hi ttruman,
hope your build ended up being a success.
I just realised that the membrane ear cut outs are facing different directions in you photos.
left/right: #29, 50, 51, 60, 61, 65, 66
up/down: #35, 38, 42
I have no idea how this correlates with your measurements though.
Cheers,
Erik
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