I probably don't have to tell you what drivers I'm using, they've got to be 2 of the most popular from vifa...
This is my first attempt at anything like this. I hope this crossover works okay, because I havn't tried it yet 😛
This is my first attempt at anything like this. I hope this crossover works okay, because I havn't tried it yet 😛
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
That x-o is pretty close to the one Dave B uses in the tapered pipes he build..
Problem is that the P17WJ will behave rather differently in a vented or sealed box (which is yours, hard to tell from pics)
You will probably find a loss of midrange definition (the P17 in a smallish box) and bass, because of the different bass response over what that x-o would provide in the pipes.
tweaking will almost certainly be required!
Problem is that the P17WJ will behave rather differently in a vented or sealed box (which is yours, hard to tell from pics)
You will probably find a loss of midrange definition (the P17 in a smallish box) and bass, because of the different bass response over what that x-o would provide in the pipes.
tweaking will almost certainly be required!
Ah... a series xo.
Just make sure that the cap and inductor values are calculated using the actual impedance at the crossover point and not nominal values and that you add the 4R7 to the tweeter's resistance at that point.... remember that it's running in series and does not function like an L-Pad.
Just make sure that the cap and inductor values are calculated using the actual impedance at the crossover point and not nominal values and that you add the 4R7 to the tweeter's resistance at that point.... remember that it's running in series and does not function like an L-Pad.
Ah ! The lad from Valentine !
You really must call by sometime, have a listen to these line arrays !!!
You really must call by sometime, have a listen to these line arrays !!!
Not so much a lad, but an old fart 😀
I'll send a PM and we'll organise an appointment and an audience with your worship. These the Gumby?
I'll send a PM and we'll organise an appointment and an audience with your worship. These the Gumby?
The speakers are now built. I must say, they sound very nice. Bass response is lacking to a large extent (to be expected). I do however have an active sub to fill the low frequencies.
All in all, extremely pleased. I don't think I could have bought pre-made speakers or a kit for what it cost me to build a pair (AU$360)
Even though this is my first set of speakers I have made.. it would make an excellent first project for anyone wanting to build a inexpensive set of 2-ways..
Should also mention, this forum has a lot of information that I used to make these 2-ways.
All in all, extremely pleased. I don't think I could have bought pre-made speakers or a kit for what it cost me to build a pair (AU$360)
Even though this is my first set of speakers I have made.. it would make an excellent first project for anyone wanting to build a inexpensive set of 2-ways..
Should also mention, this forum has a lot of information that I used to make these 2-ways.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
I think there is no port.Siddharth said:Neat job. What's the dimension of the box? What port size and dia?
If you want a ported box as an alternative, with the same drivers (I think!), similar dimensions and different xo, then maybe you can check out this page. These drivers are available from Corrson in Bangalore.
You're right, it's a sealed enclosure (the hole in the back is just for speaker terminals). Dimensions are 210x330x330mm (WxHxD). They're made from 18mm mdf except for the baffle which is 24mm. There's no bracing or filling at the moment (that's soon to change). The exterior will also get a lick of paint.
Painted, and stuffed (with polyfill)... Plus some stands I knocked up.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Nice work! Amazing the difference a coat of paint makes.... makes me wonder whether I should go to the trouble of veneering!
Tony.
Tony.
Indeed it is. (Interesting combination of drivers as well)Nice work!
But if you look closely you can see where the screw was sitting.
No, that wouldn´t bother me if you can hardly see it anyway
(you should see my last set that I painted

What I wanna say is that to me veneering is so much less work than painting due to much more sanding, multiply coats, proper sealing etc. That said I´m not very experienced with painting but wasn´t also with veneering. Veneering results looked much more professional.
But as always YMMV.
greets
Steps to painting:
1. One coat of white MDF Primer using a roller..
2. Light sand with 400grit paper..
3. Black Gloss enamel spray, one coat.
To get a smoother finish I would sand it again with 400grit then apply another coat.
I just couldn't stand to be without my speakers, so I rushed the painting. 😉
It's vitally important to get the wood to a smooth and flat state before you start painting too, especially the end grain of MDF.
1. One coat of white MDF Primer using a roller..
2. Light sand with 400grit paper..
3. Black Gloss enamel spray, one coat.
To get a smoother finish I would sand it again with 400grit then apply another coat.
I just couldn't stand to be without my speakers, so I rushed the painting. 😉
It's vitally important to get the wood to a smooth and flat state before you start painting too, especially the end grain of MDF.
A random orbital sander does a fantastic job of finishing mdf; i did a few months work, some of which was finishing mdf to a high standard. We used spray MDF primer with a gas powered heater (the huge kind) and an extractor, two coats - then sanded back with 320grit pad on a random orbital sander, dropped two coats of top coat, sanded, and dropped another coat on.
We did quite a lot of shop fitting - so you can imagine the quality had to be right up there. Without the orbital and extractor, it got messy pretty easily.
We did quite a lot of shop fitting - so you can imagine the quality had to be right up there. Without the orbital and extractor, it got messy pretty easily.
- Status
- Not open for further replies.
- Home
- Loudspeakers
- Multi-Way
- vifa 2-way build up