Hello,
I'm looking to the DIY for a pair of speaker. I'm totally new at this.
My needs are a sensitive speaker, around 98 dB / W / m with, at leasts a 12" speakers. The objective is to use the speaker without any subwoofer, so they need to go down, ideally something between 35 to 40 hZ.
No idea between full range, 2 ways or 3 ways.
My budget is around 500€ (~600 $), max 800€ (~900 $).
The 12" speakers seems a good compromise between size and quality.
Did you know any plan, with the boxes and filter, to do this ? Is this a realistic project ?
Really I don't know to designe a speaker from the floor .. boxes, filters ... software ... and all parameters ...
Can you help me ?
Thank you in advance !
I'm looking to the DIY for a pair of speaker. I'm totally new at this.
My needs are a sensitive speaker, around 98 dB / W / m with, at leasts a 12" speakers. The objective is to use the speaker without any subwoofer, so they need to go down, ideally something between 35 to 40 hZ.
No idea between full range, 2 ways or 3 ways.
My budget is around 500€ (~600 $), max 800€ (~900 $).
The 12" speakers seems a good compromise between size and quality.
Did you know any plan, with the boxes and filter, to do this ? Is this a realistic project ?
Really I don't know to designe a speaker from the floor .. boxes, filters ... software ... and all parameters ...
Can you help me ?
Thank you in advance !
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A Fane 15-300TC full range is very good.
I would recommend a sealed box to stop over excursion of the cone.
I have one in a W bin and it sounds very good.
I would recommend a sealed box to stop over excursion of the cone.
I have one in a W bin and it sounds very good.
An externally hosted image should be here but it was not working when we last tested it.
Hello,
Thank you for your answer 🙂
15" will be a little to large/huge/not-waf/other 🙁
I forget to mention one thing : is this possible to build a boxes with only right angle (90°) ?
thx
Thank you for your answer 🙂
15" will be a little to large/huge/not-waf/other 🙁
I forget to mention one thing : is this possible to build a boxes with only right angle (90°) ?
thx
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Full range sounds like the way to go for those sort of demands,you dont have to worry about crossovers and there are plenty of designs to go from. Look in the Fane 12" thread for some ideas, Steve Creswell recently posted a nice-looking closed box for those that may be a good fit for you.
http://www.diyaudio.com/forums/full-range/65061-range-speaker-photo-gallery-395.html#post5419806
http://www.diyaudio.com/forums/full-range/65061-range-speaker-photo-gallery-395.html#post5419806
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Hello,
Thank you. They are really beautiful, my girls will love the color !
I can build higher boxes if I can more bass ? Sadly no plan how to do this 🙁
Regards,
Thank you. They are really beautiful, my girls will love the color !
I can build higher boxes if I can more bass ? Sadly no plan how to do this 🙁
Regards,
lol, yes the W bin is fun to build. You need a circular saw that can cut angles.
Its fun working out all the mating angles.
Another option is the Fane 12-250TC full range.
Just build a sealed box that matches the speaker datasheet box volume.
Indeed fun, but I have so little hair on my head ... dont want to loose more 😉
Good idea for the sealed box, .... but how to build it ? Any plan/schemas ? What is the good volume ?
thx
Good idea for the sealed box, .... but how to build it ? Any plan/schemas ? What is the good volume ?
thx
78 litres per 12 inch driver.
Just build a box with a 1" lip on the front. Then cover it with thin carpet or Tolex. Grill on the front to protect speaker.
Cabinet corners, side handles and recess plat on rear for jack socket.
I usually just paint the rear and front but you can cover them if you like in Tolex or thin carpet.
Thank you 🙂
Sorry to ask really, but the probleme is how to build the box. Internal stuff and all 😉
Sorry to ask really, but the probleme is how to build the box. Internal stuff and all 😉
Basic design and construction details are available here:
www.ozvalveamps.org/cabinets/fane-loudspeaker-book-pages-01-11.pdf
The other pages of the 'Fane Loudspeaker Book' are also available if you search.
www.ozvalveamps.org/cabinets/fane-loudspeaker-book-pages-01-11.pdf
The other pages of the 'Fane Loudspeaker Book' are also available if you search.
P.S. Your best bet to obtain a response down towards your required 35 - 40Hz is to choose a full-range 12" driver with as low a resonant frequency as possible, and put it in a reflex enclosure.
Knowing the loudspeaker resonance you can then choose a suitable enclosure volume and port area from the table shown on page 5 of the 'Fane Loudspeaker Book'.
Knowing the loudspeaker resonance you can then choose a suitable enclosure volume and port area from the table shown on page 5 of the 'Fane Loudspeaker Book'.
For Steve Creswell's 78L box, here is a drawing i did from the dimensions he gave. The brace holes dont need to be circles, whatever is easiest to make. Drawn for 18mm ply (or MDF i guess).
It should be quite simple to construct, you could probably get the panels cut by a local carpenter or possibly home depot. The driver cutout is the most complicated part of this build, you need either a router with a circle jig or a jigsaw and a steady hand.
It should be quite simple to construct, you could probably get the panels cut by a local carpenter or possibly home depot. The driver cutout is the most complicated part of this build, you need either a router with a circle jig or a jigsaw and a steady hand.
Attachments
Thank you, evry one I will read this ! 🙂 Oh really thank you for the plan/schema !
By the way I could have a boxe aournd 130/140cm high, and 40cm large. So something around 150L To 200L...
Galu, I'm looking for this sort of speaker with a high sensitivity.
Is there any 12" speaker with : a sensitivity of 99 dB / W / m at 40 Hz inside a 120-150L boxes ?
Thx
By the way I could have a boxe aournd 130/140cm high, and 40cm large. So something around 150L To 200L...
Galu, I'm looking for this sort of speaker with a high sensitivity.
Is there any 12" speaker with : a sensitivity of 99 dB / W / m at 40 Hz inside a 120-150L boxes ?
Thx
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It is very hard to get high sensitivity and bass down to 35Hz without a sub.The vast majority of 12 inch high sensitivity drivers go down to more like 60-70Hz.So you either have to sacrifice sensitivity or bass extension.
99db/w from 200 liters down to 40hz is not very realistic to expect from a single 12".
96db/w may be possible.
If you've never built a speaker before, a closed box is not a bad place to start. If you have some experience making things from wood you can make a lot of different designs. Normally TL/BR boxes will often get you good sound and are not very complicated to build.
Do you have any cost restrictions?
96db/w may be possible.
If you've never built a speaker before, a closed box is not a bad place to start. If you have some experience making things from wood you can make a lot of different designs. Normally TL/BR boxes will often get you good sound and are not very complicated to build.
Do you have any cost restrictions?
@gug42:
The best compromise for your situation is a driver which has already been mentioned by Nigel - the Fane Sovereign 12-250TC.
TC stands for Twin Cone so this is a full range 12" driver.
The sensitivity is 98dB, frequency response is 45Hz to 17,000Hz in a 75 litre reflex enclosure tuned to 50Hz and the resonant frequency is 50Hz.
I doubt you will find any better for your intended application. Have fun!
The best compromise for your situation is a driver which has already been mentioned by Nigel - the Fane Sovereign 12-250TC.
TC stands for Twin Cone so this is a full range 12" driver.
The sensitivity is 98dB, frequency response is 45Hz to 17,000Hz in a 75 litre reflex enclosure tuned to 50Hz and the resonant frequency is 50Hz.
I doubt you will find any better for your intended application. Have fun!
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Hello,
Thank you. The plan are clean and readable. The cost will be low. Very good. And the frequency and sensibility is really good ! Well for a first build, really interesting ! Sadly it's not available before a month 🙁
For my comprehension, I studdy a another way : the 2 ways speaker with a huger box, something with a 12" inside a 125L box. The objective is to go lower in frequency.
Thank you.
Thank you. The plan are clean and readable. The cost will be low. Very good. And the frequency and sensibility is really good ! Well for a first build, really interesting ! Sadly it's not available before a month 🙁
For my comprehension, I studdy a another way : the 2 ways speaker with a huger box, something with a 12" inside a 125L box. The objective is to go lower in frequency.
Thank you.
Unless you are into organ music, there is little to gain by going lower in frequency than the lowest note on a double bass, which is 41Hz.
The sheer power of bass reproduction from a 12" driver in a large cabinet will more than compensate for any lack of extension below 40 - 45Hz.
The more you explore, the more you will learn. However the resulting bass from the Fane 12" in a huge sealed enclosure (your 125L) should be enough to knock your socks off!
The sheer power of bass reproduction from a 12" driver in a large cabinet will more than compensate for any lack of extension below 40 - 45Hz.
The more you explore, the more you will learn. However the resulting bass from the Fane 12" in a huge sealed enclosure (your 125L) should be enough to knock your socks off!
A really good question : at wich frequency a dedicated subwoofer isn't needed ? 40 Hz ? 45 Hz ?
Well no infra bass, but it's ok for me for this project.
Is there any software to model the response of this speaker in different box configuration ?
Thank you :🙂
Well no infra bass, but it's ok for me for this project.
Is there any software to model the response of this speaker in different box configuration ?
For sure, and it's damm interesting ! (And complex, lots of informations)
Thank you :🙂
And thank you gug42. Glad to be of assistance, enjoy your journey.
I've built more loudspeakers for myself and for my friends than I have had hot breakfasts!
However, this was in the days before T/S parameters and loudspeaker modelling software.
One thing though, I always found that bigger was better!
I've built more loudspeakers for myself and for my friends than I have had hot breakfasts!
However, this was in the days before T/S parameters and loudspeaker modelling software.
One thing though, I always found that bigger was better!
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