Thanks, it's really great to have the fine details.
What brand of 'Glas' and Putty (epoxy putty?) did you use to fill seams?
What brand of 'Glas' and Putty (epoxy putty?) did you use to fill seams?
I used putty from brand "Car System" (Glas and soft). Soft putty from this brand is very good and easy for final handling.
And don't forget, before operations of fill the seams in enclousers, you should be applied to the MDF epoxy primer + after 15-20 min. 2k primer.
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Hi
Did you have the enclosures painted at an autobody shop? Can you expand on what type of paint, # of coatings, and any clear coats?
Thanks in advance.
Bob
Did you have the enclosures painted at an autobody shop? Can you expand on what type of paint, # of coatings, and any clear coats?
Thanks in advance.
Bob
I would just edit my original post, but that doesn't appear to be an option.
One more picture to add, now that the grilles are in place. It is a shame to cover the granite, but it is a necessity for the time being.
One more picture to add, now that the grilles are in place. It is a shame to cover the granite, but it is a necessity for the time being.
Hi Bob !
Yes, i painted the enclosures at an autobody shop and i used the following automotive components for preparation for painting and painting:
- epoxy primer Sikkens (for isolation of MDF)
- 2K primer Sikkens Rapid dark gray
- putty Car System glas (for big seams) and soft (for final operations)
- base of paint BRULEX Special Black (it is very deep black color, more black than over black colors).
- clear coats Brulex 2K-MS
Thanks in advance 🙂
Denis
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Thanks ! Your projects very aesthetically perfect too 🙂
By the sound:
- rapid, large-scale, dense, and at the same time easy for listening bass. These 6” bass drivers from ARSLAB really can reproduce frequency up to 25-30Hz.
- Wide and deep scene. Ease /air at medium and high frequencies;
- High details on both, high and very low volume listening.
System weight:
Bass section: 30-31kg
TW/MID section: 24-25kg
Total approx. weight: 170-175kg
The Leftovers
My latest creation is a pair built to donated to a charity auction. They sell used audio equipment to raise funds for reading services for the blind. The goal was to make as good a pair as I could using as much leftover stuff as I could, hence the name.
Images are the speakers, the X-over, and SPL plots of woofer and tweeters without X-over. Test equipment used is: HOLM Impulse for farfield SPL measurements, Dayton's WT3 for impedance, and Audata's SpeakerWorkshop to model the enclosure and the X-over.
My latest creation is a pair built to donated to a charity auction. They sell used audio equipment to raise funds for reading services for the blind. The goal was to make as good a pair as I could using as much leftover stuff as I could, hence the name.
- Woofers: Vifa P17WJ-00-04 in a Chebychev alignment. That's ~21 liters with a port tuned to ~45Hz.
- Tweeters: Sinar Baja (SB Acoustics)TD25NH-05-08 1 pair in series per speaker.
- Cabinets: 3/4" MDF screwed and glued together with lots of internal bracing and some damping in the back. Covered with vinyl veneer.
- X-over is made from what I had available, plus some resistors I had to buy. 2nd order centered at ~625Hz.
Images are the speakers, the X-over, and SPL plots of woofer and tweeters without X-over. Test equipment used is: HOLM Impulse for farfield SPL measurements, Dayton's WT3 for impedance, and Audata's SpeakerWorkshop to model the enclosure and the X-over.
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Hi there,
Not my first build, I have built several sub enclosures for my cars but my first home speaker build. It all started out with reading the F5 thread and building an dyi F5, can be found HERE. As I had listened to my new great amplifier on my cheap Simex speakers I came to the conclusion that I had to do something about the speakers.
I went to the local speaker shop for a couple of visits and listenend to some speakers and came to the conclusion that I had to pay myself sick for a couple of speakers that I really liked.
After this I started to search for a diy solution and after a lot of searching and reading found a speaker that I wanted to build, the DTQWT mk II designed by Troels Gravesen.
The boxes themselves were quite easy but as I wanted to do the painting myself, first time, it took some serious time.
They sound really good and balanced to me with the F5, the mids are excellent and the top is perfectly integrated, the two deltalines on the back you do not even notice. Maybe that is why I would like some more crounch in the bottom end but not much, so if you have ideas of how to accomlish this I'll be all ears. Please enjoy!
I went to the local speaker shop for a couple of visits and listenend to some speakers and came to the conclusion that I had to pay myself sick for a couple of speakers that I really liked.
After this I started to search for a diy solution and after a lot of searching and reading found a speaker that I wanted to build, the DTQWT mk II designed by Troels Gravesen.
The boxes themselves were quite easy but as I wanted to do the painting myself, first time, it took some serious time.
They sound really good and balanced to me with the F5, the mids are excellent and the top is perfectly integrated, the two deltalines on the back you do not even notice. Maybe that is why I would like some more crounch in the bottom end but not much, so if you have ideas of how to accomlish this I'll be all ears. Please enjoy!
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Yeah, about 625Hz. They don't sound that great, but I listened a lot at decent levels without blowing the tweeters. It will suffice until the lucky buyer builds a better one.
MNS80: That paint job is amazing! And you first time! Maybe some day I'll try finishing speakers like that.
MNS80: That paint job is amazing! And you first time! Maybe some day I'll try finishing speakers like that.
Bass: Diy Sep amp 6550:Tru-sonic 150w sealed enclosure (500Hz)
Mids: Diy Set amp 300B:Edgar Midrange Tractrix Horn with JBL LE5-2 (500Hz-5Khz)
Hi: Diy Set amp 71A: Selenium 220ti HM 17-25 horns or Eminence APT-200 (>5Khz)
Diy Electronic crossover
mns80, I'm jealous. I'm working on a silver flute 8" with that horn, but using the threaded version with a jbl 2407a, crossover at 2khz. I've heard the horn with a jbl 2408 and that horn (with or without threads) is special.
Norman
Norman
Thanks terr.
hmm, those silver flutes are awesome, but a low, low qts. I don't believe in the manufactorer's qts spec of .2, but .25 - .3 wouldn't suprise me.
I thought of a baffle step woofer, but my guy hates them and prefers to run a passive cut circuit between preamp and amp (you can see something like it on the esp site). And I got the higher sensitivity 4ohm to match the 4ohm jbl compression driver. So a baffle step woofer would make for a punishing load, and would sound bad at a diyIowa (used an AR tube amp years ago).
I have a vega 12" that goes real low in its box (v12f) and of course the dual 15's (I have 2 boxes each with eminence 15lf's).
Right now, I'm not using any woofers/subwoofers with my klipsch rb75.
I have no idea if I will stay with mono/stereo, add another amp with the 80hz f-mod I have, someday build a sealed ppsl (push pull slot loaded subwoofer) or spring for a cheapie onkyo dolby digital reciver (least likely). I got to get my altec 9440a up and running. I'm quite happy without much woofing (for now). I've been doing the diy patch cord thing and have been focused there. Next up is the speaker wire thing (that I've done long ago b4 also). But my 26g magnet wire with plastic rat shack rca's beat out 24g twisted pair soft silver with canare rca's.
Hopefully speaker boxes are done in a week or so, then maybe 2 weeks till crossover is knocked out.
Norman
hmm, those silver flutes are awesome, but a low, low qts. I don't believe in the manufactorer's qts spec of .2, but .25 - .3 wouldn't suprise me.
I thought of a baffle step woofer, but my guy hates them and prefers to run a passive cut circuit between preamp and amp (you can see something like it on the esp site). And I got the higher sensitivity 4ohm to match the 4ohm jbl compression driver. So a baffle step woofer would make for a punishing load, and would sound bad at a diyIowa (used an AR tube amp years ago).
I have a vega 12" that goes real low in its box (v12f) and of course the dual 15's (I have 2 boxes each with eminence 15lf's).
Right now, I'm not using any woofers/subwoofers with my klipsch rb75.
I have no idea if I will stay with mono/stereo, add another amp with the 80hz f-mod I have, someday build a sealed ppsl (push pull slot loaded subwoofer) or spring for a cheapie onkyo dolby digital reciver (least likely). I got to get my altec 9440a up and running. I'm quite happy without much woofing (for now). I've been doing the diy patch cord thing and have been focused there. Next up is the speaker wire thing (that I've done long ago b4 also). But my 26g magnet wire with plastic rat shack rca's beat out 24g twisted pair soft silver with canare rca's.
Hopefully speaker boxes are done in a week or so, then maybe 2 weeks till crossover is knocked out.
Norman
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