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Multi-Way Conventional loudspeakers with crossovers

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Old 15th September 2019, 09:08 AM   #3211
spswmsw is offline spswmsw  Ukraine
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Thanks a lot.
I've finally replaced the Fountek NeoCD3.5H with Eminence APT:80, as there appeared not enough sensitivity of the Founteks.
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Old 15th September 2019, 09:08 AM   #3212
falpi is offline falpi  France
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Originally Posted by kazap View Post
Nice work. The floor concrete bass horns with Altec 515 sound great. How low do they go?
30 Hz -3dB, 50 hz 0dB

At the moment, the system uses one TacT RCS and two TacT 2150s. The filters are located in the DSP of the amplifiers.
As they malfunction a little, today I'm going to try a Benchmarkk DC1, a crossover Rane Ac23, a Crown XLS 1502 for the bass and a Hiraga 8w for the medium-acute.
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Old 15th September 2019, 05:37 PM   #3213
planet10 is offline planet10  Canada
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Originally Posted by falpi View Post
30 Hz -3dB
Toole has shown tha F3 is meaningless to the human ear/brain, what are the F6/F10?

dave
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Old 17th September 2019, 12:11 AM   #3214
mordikai is online now mordikai  United States
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Originally Posted by planet10 View Post
Toole has shown tha F3 is meaningless to the human ear/brain, what are the F6/F10?

dave
Dave- you seem to mention this a lot. Why is F6 or F10 so much better? I don't see how they tell you anymore than F3.
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Old 17th September 2019, 12:55 AM   #3215
planet10 is offline planet10  Canada
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A: F3 is an artifact of the T/S theory being an electricl filter analogy (useful if you are using the box roll-off as part of the filter to cross something lower). Toole has shown it is a meaningless number. F6 is more meaningful to the human ear/brain and if you have F10 you have a better idea of the shape of the rolloff. Better yet would be curves, their shape can be telling.

F3 is currently embedded in the culture i am trying to move that.

dave
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Old 17th September 2019, 01:04 AM   #3216
mordikai is online now mordikai  United States
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Originally Posted by planet10 View Post
A: F3 is an artifact of the T/S theory being an electricl filter analogy (useful if you are using the box roll-off as part of the filter to cross something lower). Toole has shown it is a meaningless number. F6 is more meaningful to the human ear/brain and if you have F10 you have a better idea of the shape of the rolloff. Better yet would be curves, their shape can be telling.

F3 is currently embedded in the culture i am trying to move that.

dave
Curves of course would be more helpful but I still don't see how F6 is more useful than f3. They are still giving a basic indication of the bass extension. Any two points along the curve would be better than one.

Last edited by mordikai; 17th September 2019 at 01:07 AM.
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Old 17th September 2019, 01:28 AM   #3217
planet10 is offline planet10  Canada
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The ear/brain can perceive -6dB, it can’t -3dB.

dave
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Old 17th September 2019, 04:21 AM   #3218
mordikai is online now mordikai  United States
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Originally Posted by planet10 View Post
The ear/brain can perceive -6dB, it canít -3dB.

dave
It's a reference point, your brain doesn't have to perceive the difference. The point of reference is not that important, it's the familiarity thats important. I think yours is a semantic argument.
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Old 18th September 2019, 12:33 PM   #3219
waxx is offline waxx  Belgium
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Originally Posted by planet10 View Post
A: F3 is an artifact of the T/S theory being an electricl filter analogy (useful if you are using the box roll-off as part of the filter to cross something lower). Toole has shown it is a meaningless number. F6 is more meaningful to the human ear/brain and if you have F10 you have a better idea of the shape of the rolloff. Better yet would be curves, their shape can be telling.

F3 is currently embedded in the culture i am trying to move that.

dave
I see the F3 as where the slope starts, but the F10 tells untill where the usable bass goes. So for the description of the bassresponse the F10 (aka FS) is way more usefull than the F3. But it does not mean that the F3 is useless from designers perspective.
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Old 18th September 2019, 07:24 PM   #3220
planet10 is offline planet10  Canada
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But it does not mean that the F3 is useless from designers perspective.
Only from the ear/brain perspective.

dave
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