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Multi-Way Conventional loudspeakers with crossovers

Open source speaker project - Part II
Open source speaker project - Part II
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View Poll Results: Design Goal
Classic -Amp Friendly- Hi Sensitivity (92db+), Higher Bass Ext (f3 40-45Hz), Cabinet Size 60-80 18 17.82%
Classic -Bass Friendly- Deep Bass (f3 35-40Hz), Lower Sensitivity (88db+), Cabinet Size 80-110 10 9.90%
Classic XL -Amp and Bass Friendly- Hi Sensitivity (92db+), Deep Bass (f3 35-40Hz), Cabinet size 100+ 12 11.88%
Tower -Amp Friendly- Hi Sensitivity (92db+), Higher Bass Ext (f3 40-45Hz), Cabinet Size 60-80 13 12.87%
Tower -Bass Friendly- Deep Bass (f3 35-40Hz), Lower Sensitivity (88db+) , Cabinet Size 80-110 21 20.79%
Tower XL -Amp and Bass Friendly- Hi Sensitivity (92db+), Deep Bass (f3 35-40Hz), Cabinet size 100+ 27 26.73%
Voters: 101. You may not vote on this poll

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Old 10th September 2018, 10:04 AM   #21
mbrennwa is offline mbrennwa  Switzerland
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I have a gut feeling that not all followers of the old thread made it to this new thread. It's a shame the admins just killed the old thread. Is there any way of making the followers of the old thread aware of this new one, or even automatically add them as followers to this new thread?

In addition, it would be useful to add a link to the old thread to the first post of this new thread to provide the context and background of where we left. Is that possible?
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Old 10th September 2018, 11:50 AM   #22
NickOne is offline NickOne  Italy
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Location: Bassano del Grappa
SI-OBA-15, Hawthorne Audio "Augie"
15" 8 Ohms
2.5" voice coil
Power handling: 225 watts RMS.
SPL: 88.7 dB 1w/1m
Le: 0.81
Re: 5.69 Ohms.
Qt: 0.92
Vas: 250.3 liters
Xmax: 7.15 mm
Fs: 27.0 Hz
Magnet weight: 67ounces
Cut out 13.875"
OD 15.25"

I have four of this sitting in boxes from my previous house and I wonder if it can suit our purpose of xl box
I remember very resonable price, just say because it seam that a Canadian company is trying to take to the market all the product of the Hawthorne Audio
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Old 10th September 2018, 12:55 PM   #23
KaffiMann is offline KaffiMann  Norway
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mbrennwa, yes, that seems likely. No way to add the users from the old thread Aatto/Somerandomadmin?

Nick:
Nothing wrong with these "Augie" thingy's, but IF you want to put them in a box, it has to be HUGE!
Might as well go IB.
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Old 10th September 2018, 03:05 PM   #24
Aatto is offline Aatto  United States
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Quote:
Originally Posted by mbrennwa View Post
I have a gut feeling that not all followers of the old thread made it to this new thread. It's a shame the admins just killed the old thread. Is there any way of making the followers of the old thread aware of this new one, or even automatically add them as followers to this new thread?

In addition, it would be useful to add a link to the old thread to the first post of this new thread to provide the context and background of where we left. Is that possible?
Quote:
Originally Posted by KaffiMann View Post
mbrennwa, yes, that seems likely. No way to add the users from the old thread Aatto/Somerandomadmin?
Well, it is a shame and it sure looks like we are missing some followers alright, I m hoping once we get the goal and actually start the design more people will show up, we had over 200 votes on the other thread and compare it to 50+ here sure is huge gap.
I did add link to previous thread( thought I already did), I m not sure what else we can do here, as mbrennwa suggested it would be nice if the other thread wasn't close (a lot of good info and discussions) and we could add link to this one for the poll. Admins ? any suggestions ?
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Last edited by Aatto; 10th September 2018 at 03:08 PM.
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Old 10th September 2018, 03:10 PM   #25
Aatto is offline Aatto  United States
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Quote:
Originally Posted by NickOne View Post
SI-OBA-15, Hawthorne Audio "Augie"
15" 8 Ohms
2.5" voice coil
Power handling: 225 watts RMS.
SPL: 88.7 dB 1w/1m
Le: 0.81
Re: 5.69 Ohms.
Qt: 0.92
Vas: 250.3 liters
Xmax: 7.15 mm
Fs: 27.0 Hz
Magnet weight: 67ounces
Cut out 13.875"
OD 15.25"

I have four of this sitting in boxes from my previous house and I wonder if it can suit our purpose of xl box
I remember very resonable price, just say because it seam that a Canadian company is trying to take to the market all the product of the Hawthorne Audio
Qts of 0.92 ? is that correct ? it needs huge box tho and sensitivity is not that great
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Old 10th September 2018, 04:10 PM   #26
NickOne is offline NickOne  Italy
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Quote:
Originally Posted by KaffiMann View Post
Nick:
Nothing wrong with these "Augie" thingy's, but IF you want to put them in a box, it has to be HUGE!
Might as well go IB.
Ok understood, what's IB?
Thanks

Quote:
Originally Posted by Aatto
Qts of 0.92 ? is that correct ? it needs huge box tho and sensitivity is not that great
It's just intended to be use in OB speakers

Maybe I'll start a thread when I think to do something with it
Follow the project, I'm only sorry can't help more
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Old 10th September 2018, 04:47 PM   #27
Drummer2005 is offline Drummer2005  United States
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I'm still following daily. I have yet to vote because I'm trying to see where it goes as far as the direction dictated by those of you who know what you're doing. Lol. I am learning with each post that I read, and I'm of the mind that I hadn't wanted to cast a vote that would make the forward movement of the project get bogged down. My own choice of compromise, would be to sacrifice high sensitivity vs giving up low end extension, but I would love both, if it is feasible. Help me to decide? Glenn.
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Old 10th September 2018, 05:17 PM   #28
EarlK is offline EarlK  Canada
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Quote:
Originally Posted by Aatto View Post
Well, it is a shame and it sure looks like we are missing some followers alright, I m hoping once we get the goal and actually start the design more people will show up, we had over 200 votes on the other thread and compare it to 50+ here sure is huge gap.
I did add link to previous thread( thought I already did), I m not sure what else we can do here, as mbrennwa suggested it would be nice if the other thread wasn't close (a lot of good info and discussions) and we could add link to this one for the poll. Admins ? any suggestions ?

The participation "gap" that you mention is not huge, it's very much inline with the actual expressed interest for this design type.

95 people voted for a 3-way speaker option and you currently have 60 people participating by casting their votes ( for box size & sensitivity ).

By my reckoning, you've only lost @ a 1/3 of round #1's "expressed interest" cadre ( that's really not too bad IMO ).

If you're next 2 polls each lose another 1/3 of the assumed cohort, then you should be able to establish a trend line that projects an interest in acquisition.

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Old 10th September 2018, 05:53 PM   #29
Aatto is offline Aatto  United States
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Quote:
Originally Posted by Drummer2005 View Post
I'm still following daily. I have yet to vote because I'm trying to see where it goes as far as the direction dictated by those of you who know what you're doing. Lol. I am learning with each post that I read, and I'm of the mind that I hadn't wanted to cast a vote that would make the forward movement of the project get bogged down. My own choice of compromise, would be to sacrifice high sensitivity vs giving up low end extension, but I would love both, if it is feasible. Help me to decide? Glenn.
there s no "wrong" choice here, poll is here to have your feedback, go ahead and vote for what fits your need or interest and good to have you here, most of us are here to learn a thing or two, I certainly wish I had more knowledge to contribute as well but hey, everybody starts from somewhere .

Quote:
Originally Posted by NickOne View Post
Ok understood, what's IB?
Thanks



It's just intended to be use in OB speakers

Maybe I'll start a thread when I think to do something with it
Follow the project, I'm only sorry can't help more
IB is infinite baffle,
Ok I see it explains the high Qts, I never been interested in OB woofers so never seen one .
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I used to be with it, but then they changed what it was, and now what Im with isnt it. And whats it seems weird and scary to me. - Grandpa Simpsons.

Last edited by Aatto; 10th September 2018 at 05:56 PM.
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Old 10th September 2018, 05:56 PM   #30
mbrennwa is offline mbrennwa  Switzerland
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Quote:
Originally Posted by Drummer2005 View Post
I'm still following daily. I have yet to vote because I'm trying to see where it goes as far as the direction dictated by those of you who know what you're doing. Lol. I am learning with each post that I read, and I'm of the mind that I hadn't wanted to cast a vote that would make the forward movement of the project get bogged down. My own choice of compromise, would be to sacrifice high sensitivity vs giving up low end extension, but I would love both, if it is feasible. Help me to decide? Glenn.
If you are ok with very lange speakers, you can get them to be amp friendly AND go deep. If size is limited, you will have to compromise (either deep bass or amp friendly, but not both). Choose what would work for you so that the gurus will know what you and everyone else want.
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