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Old 16th January 2013, 06:46 AM   #51
xrk971 is offline xrk971  United States
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Chaz,
That's really low for a 3 in driver - can you post FR sweep plot?
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Old 16th January 2013, 04:07 PM   #52
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I'll try to, but it won't be coming anytime soon. I'm heading out of the country in a couple of weeks and it won't happen until I get back. However, in the meantime I could run a sweep and record it, just to provide evidence of the bass extension. Obviously it will sound like crap.
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Old 16th January 2013, 11:56 PM   #53
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Yikes, sorry for the faulty info guys. I THOUGHT that was too good to be true, especially since it contradicted the simulation. I didn't realize my subwoofer was hooked up last night. The actual bass extension is a more moderate ~55hz.
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Old 23rd January 2013, 03:22 PM   #54
dzwer is offline dzwer  Bulgaria
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Default Help with 4" coaxial car driver

Can someone rework the project for these speakers?
TS-E1076 (Archived) - Pioneer UK
Here are some measured parameters from this Russian website:
avtozvuk.com

Nominal power: 25W
Frequency response at level -3dB: 110 - 22000Hz
Sensitivity dB/W/m: 88dB (150 - 15000Hz)
THD at level 90dB at 1m(160 - 4000Hz): 2,03%
THD at level 90dB at 1m(100 - 125Hz): 9,15%
Midbass resonance frequency: 113Hz
Qts: 0,657
Vas: 1,94l
Force factor(BL): 3,4 T-m
Mms: 3,9g
Zmin for the midbass: 3,5ohms
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File Type: jpg Pioneer TS-E1076.jpg (136.2 KB, 307 views)
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Old 23rd January 2013, 09:06 PM   #55
Henkjan is offline Henkjan  Netherlands
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try and find (or estimate) the driver's Sd, and then use the spreadsheet found in this thread: TL alignment tables in excel to get a good idea of how a TL should look. with a high Qt driver, you can choose a lower than fs tuning of the TL
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Old 24th January 2013, 02:30 PM   #56
dzwer is offline dzwer  Bulgaria
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Sd is 78.54 sq.cm(R=5cm) and nothing happened, when I fill in the xls file all required fields.
Does it mean this driver is not suitable for TL?
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Old 25th January 2013, 10:07 PM   #57
Henkjan is offline Henkjan  Netherlands
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what do you mean "nothing happened"? did you allow the macro's to run?

the driver is suited for a TL
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Old 26th January 2013, 11:02 AM   #58
dzwer is offline dzwer  Bulgaria
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I've forgot the macros...
Thanks!
Now the drivers are given for T/S measurements.
Let's see if the results will differ from the Russian website.
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Old 30th January 2013, 02:38 PM   #59
dzwer is offline dzwer  Bulgaria
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Here are the measurements:
Driver: Pioneer TS-E1067_1
Compliance (Vas) 1.065 liters
Resonance (Fs) 131.515 Hz
Mechanical Q (Qms) 5.990
Electrical Q (Qes) 1.089
Total Q (Qts) 0.922
DC Resistance (Re) 3.187 Ohms
Piston Area (SD**2) 50.000 sq cm

Driver: Pioneer TS-E1067_2
Compliance (Vas) 1.055 liters
Resonance (Fs) 131.512 Hz
Mechanical Q (Qms) 6.000
Electrical Q (Qes) 1.087
Total Q (Qts) 0.920
DC Resistance (Re) 3.198 Ohms
Piston Area (SD**2) 50.000 sq cm

Far away from the listed above...
I'll think what to do with these drivers...

Last edited by dzwer; 30th January 2013 at 02:42 PM.
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