Hello everyone,i got a jbl gto 1002d speaker and i don't know in what enclosure fits best?I hope for best performance and low frequencies.Thank you.
Hi fussionn, congratulations with your purchase of a new driver.
JBL GTO1002D 10" DVC
Is it for home or car audio. Do you have in mind any type of system, amps and/or electronic control, please describe.
JBL GTO1002D 10" DVC
Is it for home or car audio. Do you have in mind any type of system, amps and/or electronic control, please describe.
Thank you. I'm holding now a sharp sm7700bk home amplifier with recommended preamplifier. I'm thinking to wire this driver in series for now till I can purchase a new amplifier. It is for home. I can do a bandpass enclosure, it is powerful. I need a low pass frequencies filter, right? Sorry for my English.
This driver is good for a QWTL (quarterwave transmission line).
Acoustic transmission line - Wikipedia, the free encyclopedia
Transmission Line Speakers
Quarter Wavelength Loudspeaker Design
A 4th order bandpass can give you more ~4dB but is restricted in frequency, good when you crossover at ~80Hz.
In an easy bass-reflex (BR) you can use an ideal 43 L int. volume alignment, with f3 28Hz-ff/20Hz-in room.
JBL GTO 1002D, VB = 43.3 L, FB = 19.7 Hz
(Note: now the problem with this alignment is that for Port you need a 3" internal with length 77.15cm = 30 3⁄8in.)
So if we change to another alignment say (with f3 21Hz in room)
JBL GTO 1002D, VB = 40.0 L, FB = 22.0 Hz
we have a Port 3" int diam and with length 66.2cm = 26 1⁄16in.
As you see (you can simulate your desired alignment with any software, use WinISD or UNIBOX) now the constraint is the length of the port. For that matter another alignment with higher Fb or shorter port length (Vol=50 L f3=20Hz in room).
JBL GTO 1002D, VB = 50.0 L, FB = 23.0 Hz
Port int. diam. 7.62cm = 3in
Port lenght 45.88cm = 18 1⁄16in
I'm sure you would be fine with this type of port size/máx.lenght (FB ~ 23.0 Hz) for the box volume ~50 L.
Precision Port 3" Flared Port Tube Kit 268-350
Acoustic transmission line - Wikipedia, the free encyclopedia
Transmission Line Speakers
Quarter Wavelength Loudspeaker Design
A 4th order bandpass can give you more ~4dB but is restricted in frequency, good when you crossover at ~80Hz.
In an easy bass-reflex (BR) you can use an ideal 43 L int. volume alignment, with f3 28Hz-ff/20Hz-in room.
JBL GTO 1002D, VB = 43.3 L, FB = 19.7 Hz
(Note: now the problem with this alignment is that for Port you need a 3" internal with length 77.15cm = 30 3⁄8in.)
So if we change to another alignment say (with f3 21Hz in room)
JBL GTO 1002D, VB = 40.0 L, FB = 22.0 Hz
we have a Port 3" int diam and with length 66.2cm = 26 1⁄16in.
As you see (you can simulate your desired alignment with any software, use WinISD or UNIBOX) now the constraint is the length of the port. For that matter another alignment with higher Fb or shorter port length (Vol=50 L f3=20Hz in room).
JBL GTO 1002D, VB = 50.0 L, FB = 23.0 Hz
Port int. diam. 7.62cm = 3in
Port lenght 45.88cm = 18 1⁄16in
I'm sure you would be fine with this type of port size/máx.lenght (FB ~ 23.0 Hz) for the box volume ~50 L.
Precision Port 3" Flared Port Tube Kit 268-350
Got it.Yor are saying that this driver is good for a QWTL enclosure,but i can't design it.Can you?If you can,please design it and write all sizes,I would be grateful.If you can't design it,can i make an enclosure with port made by myself?I mean, someting like this (i can't find the right word for it: /http://194.88.148.41/?mmid=07e3a4a64e18f52d0 .
Yes, your link shows a bass-reflex (BR) with a rectangular port.
I can not design TL's but can look at the simulations from an artistic point of view. What is the thickness of the wood you're using (+/-)?
Tapered Quarter-Wave Tube Calculator by mh-audio.nl
I can not design TL's but can look at the simulations from an artistic point of view. What is the thickness of the wood you're using (+/-)?
Tapered Quarter-Wave Tube Calculator by mh-audio.nl
Hy. Look, I found this DIY Audio Projects Forum • JBL GTO 1002D Subwoofer Project Build. It's a t-line enclosure for my driver.
Sorry,i didn't saw that pictures from last lisnk that i post.Would be ok a BFM table tuba enclosure but i need the project.Can you guys help me with the project?thanks
fussionn,
DO YOU HAVE YOUR PROJECT ALREADY ?!
Looks like a workable solution, how is it ?
This is, if you're following the TL route, what seems fine... alias the best, together with the BR I mentioned.
DO YOU HAVE YOUR PROJECT ALREADY ?!
Looks like a workable solution, how is it ?
This is, if you're following the TL route, what seems fine... alias the best, together with the BR I mentioned.
No,i cannot do the project by myself,i'm hoping that you can help me.don't know how to start for TL enclosure.
bjorno is very good with those, maybe he can help you. 😀
I can only look at his projects and appreciate (from an aesthetic point of view) or do the simulations with other software (like the one linked on post #7). I know bjorno uses very respectful calculations by Martin J. King. I don't have that much experience as I told you but I will help in what I can. After you get the right kind (right size) of measures (wavelength) for your driver/speaker it does not look very difficult, just go with the flow. 😱
Quarter Wavelength Loudspeaker Design
http://www.quarter-wave.com/TLs/Alignment_Tables.pdf
I can only look at his projects and appreciate (from an aesthetic point of view) or do the simulations with other software (like the one linked on post #7). I know bjorno uses very respectful calculations by Martin J. King. I don't have that much experience as I told you but I will help in what I can. After you get the right kind (right size) of measures (wavelength) for your driver/speaker it does not look very difficult, just go with the flow. 😱
Quarter Wavelength Loudspeaker Design
http://www.quarter-wave.com/TLs/Alignment_Tables.pdf
Hi BP1F..,
Thats how you design a good sub!
For the moment: Adding the requested TL :
I'll be back with more..
b🙂
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