Thanks,
two port 58x150mm (60mm PVC tube), the box is 720x460x310mm the base box made 20mm MDF but added a "extra" front was made in 19mm Baltic birch, Between the front MDF and birch put 2mm rubber sheet, glued as a sandwitch.
Earlier someone asked about the SupraVox 215 Signture. It really needs something close to an infinite baffle. To do this style enclosure i would suggest 150 litres.
dave
dave
I've never played with the a26re4.
I am jelly (jealous) as I would like to hear that kit one day.....................
I played with the b102 because I noticed that b102 / cat378 were similar db levels and 6db down at 2khz, and the morel is -6db@2khz and -12db @ 1khz with its 5.6uf.......
Time aligned ?
Not quite, but sounds really good, and even better with the tweet slid back 2" or so..................
The b102 is rugged, and i had it in a mistuned box (1.4ft3 tuned to 40hz) on the floor, too low for a center channel.
Should be 2.3ft3 tuned to Fs / F3 = 50hz.
The a26re has a qts of .4, so if you want a 170L box ported, it can be F3/Fsb/tune at 25hz, but that is a very, big, box, very.
You can put it in a box 1/2 as big and still tune to 25hz, should be fine.
I'm happy with tuning 30hz and lower (on a sub anyway).
Remember, the morel is 6db down 30 degrees off axis at 10khz.
That means you can cover a couch at 7' away, similar to a 3" full range driver, while a normal dome sends highs everywhere.
Would I play with b102 again ?
I'm not sure, I have 4 tweets and 1 woof now.
I had been trying for 6db 6.5" for mtm setup (d'apollito), but need flat impedence.
Ideally run something with the cat378
The peerless 6.5" is one I have been tempted for, and the scanspeak reissue of the p17 vifa drivers..............
And I've tried to communicate with rival acoustics to buy the schematic for mtm using cat378 and dayton rs180p drivers, but owner is out of the country, and no communication............................
I'm lazy.........................
and antsy to play with something....................
now I am looking at Emotiva b1+ or t0+ with its tweeter (carver anyone ? )
the tweet does better than the chane one, and people seem to like the sound.......................
Emotiva Audio Corporation
emotiva.com
Founded: 2005
Subsidiary: Bob Carver, LLC
Parent organization: Jade Design, Inc.
maybe that is where all the tweeters went.....................
b1+
https://www.audiosciencereview.com/...a-airmotiv-b1-review-bookshelf-speaker.22366/
or
t0+
I am jelly (jealous) as I would like to hear that kit one day.....................
I played with the b102 because I noticed that b102 / cat378 were similar db levels and 6db down at 2khz, and the morel is -6db@2khz and -12db @ 1khz with its 5.6uf.......
Time aligned ?
Not quite, but sounds really good, and even better with the tweet slid back 2" or so..................
The b102 is rugged, and i had it in a mistuned box (1.4ft3 tuned to 40hz) on the floor, too low for a center channel.
Should be 2.3ft3 tuned to Fs / F3 = 50hz.
The a26re has a qts of .4, so if you want a 170L box ported, it can be F3/Fsb/tune at 25hz, but that is a very, big, box, very.
You can put it in a box 1/2 as big and still tune to 25hz, should be fine.
I'm happy with tuning 30hz and lower (on a sub anyway).
Remember, the morel is 6db down 30 degrees off axis at 10khz.
That means you can cover a couch at 7' away, similar to a 3" full range driver, while a normal dome sends highs everywhere.
Would I play with b102 again ?
I'm not sure, I have 4 tweets and 1 woof now.
I had been trying for 6db 6.5" for mtm setup (d'apollito), but need flat impedence.
Ideally run something with the cat378
The peerless 6.5" is one I have been tempted for, and the scanspeak reissue of the p17 vifa drivers..............
And I've tried to communicate with rival acoustics to buy the schematic for mtm using cat378 and dayton rs180p drivers, but owner is out of the country, and no communication............................
I'm lazy.........................
and antsy to play with something....................
now I am looking at Emotiva b1+ or t0+ with its tweeter (carver anyone ? )
the tweet does better than the chane one, and people seem to like the sound.......................
Emotiva Audio Corporation
emotiva.com
Founded: 2005
Subsidiary: Bob Carver, LLC
Parent organization: Jade Design, Inc.
maybe that is where all the tweeters went.....................
b1+
https://www.audiosciencereview.com/...a-airmotiv-b1-review-bookshelf-speaker.22366/
or
t0+
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Thank you so much i do see that now. My 3/4" birch arrived today and I plan on building this over the next few weeks. wondering if you had any photos of previous builds, either using the cat 378, or not. the arrangement of the braces is a bit confusing to me. also is there a way to donate so I can contribute for your open source plans?
No pictures.
Do measure your plywood thickness before cutting. It is unlikely to be ¾”/19.05 mm.
If you cut assuming that, you could be in trouble,
dave
Do measure your plywood thickness before cutting. It is unlikely to be ¾”/19.05 mm.
If you cut assuming that, you could be in trouble,
dave
I'm listening to the T35C now and... it's a killer tweeter that digs very low. The problem is they are over $200 each and one could also argue that the cat378 might have slightly better time alignment. Tradeoffs...
I'm having some stands made now for my A26 that will tilt back a few degrees for better time alignment and maybe I'll eventually go active with linear phase and time aligned crossovers.
I'm having some stands made now for my A26 that will tilt back a few degrees for better time alignment and maybe I'll eventually go active with linear phase and time aligned crossovers.
i brought up idea of tilting kit, but it got way more complicated than i thought, running single cap tweet and wide open woof.
https://www.diyaudio.com/community/threads/time-align-the-seas-a26-kit.297264/
I'm not as obsessed with 6db time/phase alignment as i used to be thanks to this.............
granted, youtube audio and unknown mix near/farfield, and no way I can listen to a pair of 4" 2-ways 15' away.
I think this guy compares speakers using similar music.
to me, time aligned 6db stuff makes for better clicks and percussive stuff.
But good sound is still good sound, regardless of what is more accurate
I do know, the morel was better sounding 2" back sitting on the deep b102.
a26 also being 4" deep, you'd need more than tilt for centers to be close........
you may need a seperate enclosure.
but, let your ears be the judge.
better is better !!!!!!!!!!!!!!!
https://www.diyaudio.com/community/threads/time-align-the-seas-a26-kit.297264/
I'm not as obsessed with 6db time/phase alignment as i used to be thanks to this.............
granted, youtube audio and unknown mix near/farfield, and no way I can listen to a pair of 4" 2-ways 15' away.
I think this guy compares speakers using similar music.
to me, time aligned 6db stuff makes for better clicks and percussive stuff.
But good sound is still good sound, regardless of what is more accurate
I do know, the morel was better sounding 2" back sitting on the deep b102.
a26 also being 4" deep, you'd need more than tilt for centers to be close........
you may need a seperate enclosure.
but, let your ears be the judge.
better is better !!!!!!!!!!!!!!!
I love this kind of A/B testing. I'm listening on ER4Ps and I think I was distracted by how much more bass the expensive speakers produce to really focus on other sounds aspects so I dropped in a 200 Hz HPF to listen further. The low cost speakers definitely sound a lot brighter to me. I wonder if I could hear the difference over 200 Hz as easily if they had been EQ'd to sound similar.
I'm sure the impulse response of the two cabinets is different, but I can't get over the EQ differences. I looked for a video where someone shows the effects of moving a separate tweeter enclosure forward and backward but couldn't find one.
Here audiosciencereview does the mica rb42, it has a bit of zing at 3k, I'm ok with little spike at 7.5k.
https://www.audiosciencereview.com/...ds/micca-rb42-bookshelf-speaker-review.11267/
built a clone of O/96 a couple of years ago and still hasn’t disappoint. amp on the photo is F5, I am now using Tubelab SSE in triode mode and I can say it plays clean and loud.
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Stunning finish - definitely better than anything I’d come up with 😀 Hardwood baffle?
I can’t stop thinking about Dave’s double A26RE4 (2x depth) idea though… might kill the clean appearance hmmm.
I can’t stop thinking about Dave’s double A26RE4 (2x depth) idea though… might kill the clean appearance hmmm.
^ front panel is a single slab 2.5 inch thick acacia screwed and glued to wood fillets. all around is bb ply.
all this talk about time alignment and phase issue with this 10” + dome tweeter, honestly I don’t hear it or maybe I am going deaf 😁
all this talk about time alignment and phase issue with this 10” + dome tweeter, honestly I don’t hear it or maybe I am going deaf 😁
