Just purchased a pair of JBL 4722n speakers. - Page 243 - AVS Forum | Home Theater Discussions And Reviews
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post #7261 of 7396 Old 10-31-2018, 08:19 AM
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Ah, the itch. It's only a matter of time now till the scratch starts again.....
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post #7262 of 7396 Old 10-31-2018, 08:32 AM
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Ah, the itch. It's only a matter of time now till the scratch starts again.....
I think honestly Jeff has chronic poison ivy.
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post #7263 of 7396 Old 11-01-2018, 02:59 AM
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I think honestly Jeff has chronic poison ivy.
Perhaps...
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post #7264 of 7396 Old 11-24-2018, 04:36 AM
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Is Anyone able to make me a couple of spacers for new cd's?

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post #7265 of 7396 Old 11-24-2018, 12:05 PM
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Is Anyone able to make me a couple of spacers for new cd's?
If you can't find anyone to, send me a pm.
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post #7266 of 7396 Old 11-24-2018, 12:22 PM
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Is Anyone able to make me a couple of spacers for new cd's?
If you can't find anyone to, send me a pm.
Okay, thanks. I figured giving something for someone's time making it would be cheaper than buying the bits and wood.
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post #7267 of 7396 Old 11-24-2018, 01:20 PM
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Okay, thanks. I figured giving something for someone's time making it would be cheaper than buying the bits and wood.
Wood shouldn't cost more than like $10, and a bit is like $5-10, not too bad.

I 3d-printed a set of these recently and they came out good.

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post #7268 of 7396 Old 11-24-2018, 01:47 PM
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Wood shouldn't cost more than like $10, and a bit is like $5-10, not too bad.

I 3d-printed a set of these recently and they came out good.

Those look good and if you want to smooth out the throat, you should be able to use a very small amount of Acetone on a rag depending on what material (ABS) was used to print the part.

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post #7269 of 7396 Old 11-24-2018, 01:53 PM
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Wood shouldn't cost more than like $10, and a bit is like $5-10, not too bad.

I 3d-printed a set of these recently and they came out good.

Thats awesome. Great job. Give me a refresher, what are the spacers for. Is it to correct a dip around 12khz...little rusty on this old conversation. I didn't user a spacer and upgrade to the 2453H SL.
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post #7270 of 7396 Old 11-24-2018, 01:54 PM
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Those look good and if you want to smooth out the throat, you should be able to use a very small amount of Acetone on a rag depending on what material (ABS) was used to print the part.
no need really
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post #7271 of 7396 Old 11-24-2018, 01:56 PM
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Thats awesome. Great job. Give me a refresher, what are the spacers for. Is it to correct a dip around 12khz...little rusty on this old conversation. I didn't user a spacer and upgrade to the 2453H SL.
yes
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post #7272 of 7396 Old 11-24-2018, 02:50 PM
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no need really
Looks good. What printer do you have?

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post #7273 of 7396 Old 11-24-2018, 04:03 PM
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Looks good. What printer do you have?
400x400x450mm cartesian with dual extruders (e3d titans with volcano hot ends and 0.6 + 0.4mm olsson ruby nozzles). Using buildtak magnetic bed, 0.9 deg 2a motors driven by a duet2 wifi. I designed the majority of the parts on it at this point, but it started life as as gmax clone.

I'm considering a railcore build, but this works well enough and I'm saving funds currently.

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post #7274 of 7396 Old 11-24-2018, 11:39 PM
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400x400x450mm cartesian with dual extruders (e3d titans with volcano hot ends and 0.6 + 0.4mm olsson ruby nozzles). Using buildtak magnetic bed, 0.9 deg 2a motors driven by a duet2 wifi. I designed the majority of the parts on it at this point, but it started life as as gmax clone.

I'm considering a railcore build, but this works well enough and I'm saving funds currently.


That's awesome. How much time/money does it take for you to print the spacers and also this ^ ^ (the image above)?
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post #7275 of 7396 Old 11-25-2018, 09:42 AM
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Originally Posted by notnyt View Post
400x400x450mm cartesian with dual extruders (e3d titans with volcano hot ends and 0.6 + 0.4mm olsson ruby nozzles). Using buildtak magnetic bed, 0.9 deg 2a motors driven by a duet2 wifi. I designed the majority of the parts on it at this point, but it started life as as gmax clone.

I'm considering a railcore build, but this works well enough and I'm saving funds currently.

You’re such a geek and I wish I didn’t understand anything you just wrote but I understood all of it.

I have a Sindoh 3DWox but designed a CoreXY-based printer with 16”^3 printer envelope. Haven’t had a chance to put it together yet but have all the parts. It would run off of a Duet2 as well with the e3d Kraken quad-print head. Will use 4 Bondtech QR extruders remotely to keep weight down on the print head.
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Last edited by dgage; 11-25-2018 at 09:48 AM.
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post #7276 of 7396 Old 11-25-2018, 09:57 AM
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400x400x450mm cartesian with dual extruders (e3d titans with volcano hot ends and 0.6 + 0.4mm olsson ruby nozzles). Using buildtak magnetic bed, 0.9 deg 2a motors driven by a duet2 wifi.
What just happened? Am I still on Earth? As someone who makes a living in IT, I feel very less now.
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post #7277 of 7396 Old 11-25-2018, 11:23 AM
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What just happened? Am I still on Earth? As someone who makes a living in IT, I feel very less now.
Would QoS over TCP and UDP make you feel better Mr. Networking Guru?

And we’ll say the 3D printer talk is related to the 4722 by way of the spacer for the updated CD. If Notnyt shares his file, I could also print spacers since my 3D printer sits idle too much as it is. Cost would be shipping and materials.
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post #7278 of 7396 Old 11-25-2018, 11:26 AM
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That's awesome. How much time/money does it take for you to print the spacers and also this ^ ^ (the image above)?
That D20 print was a test at higher quality - which failed. The slicer had some bugs which caused the infill to get printed twice in some areas and show through the walls. It took about 3-4 days to print, but I could print it much faster with some different settings.

The spacers take about 45 to 60 minutes to print. Probably about $5-10 in filament depending on what I use.

Last edited by notnyt; 11-25-2018 at 11:33 AM.
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post #7279 of 7396 Old 11-25-2018, 11:33 AM
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The spacers are trivial to model, but here it is anyway. You want to print with high wall thickness. 2-2.4mm should be good. Make sure the top/bottom layers are nice and smooth. Might even want to under extrude the top skin a little.

I was also gonna offer to mail it out for costs if unable to get elsewhere.
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File Type: zip cd spacer.zip (39.6 KB, 11 views)
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post #7280 of 7396 Old 11-25-2018, 11:42 AM
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I don't have any idea what any of that gibberish means, but now I really want one of those Federation issued food replicators.
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post #7281 of 7396 Old 11-25-2018, 05:26 PM
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Would QoS over TCP and UDP make you feel better Mr. Networking Guru?

And we’ll say the 3D printer talk is related to the 4722 by way of the spacer for the updated CD. If Notnyt shares his file, I could also print spacers since my 3D printer sits idle too much as it is. Cost would be shipping and materials.
MMMMMM...sign me up David

BTW, Jeff might need some for his 708s
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post #7282 of 7396 Old 11-26-2018, 12:19 AM
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The spacers are trivial to model, but here it is anyway. You want to print with high wall thickness. 2-2.4mm should be good. Make sure the top/bottom layers are nice and smooth. Might even want to under extrude the top skin a little.

I was also gonna offer to mail it out for costs if unable to get elsewhere.
I tried making mine out of spare plywood, but when i drilled some layers chipped away causing surface to be far from smooth. Should have used mdf. Thinking about ordering 2 from you instead if you'd be willing.
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post #7283 of 7396 Old 11-26-2018, 03:40 AM
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MMMMMM...sign me up David

BTW, Jeff might need some for his 708s
BOOM! The hard part will be dissecting the cabinet and properly installing it...
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post #7284 of 7396 Old 01-03-2019, 09:53 AM
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Hi everyone!

I’m planning to update my HT speaker and I’m looking for JBL Pro references.

In Europe, 3678 is not available anymore. Do you think that an LCR setup with 3x4722N will be great in just 40 m2 equivalent to 430ft2?

Thanks for your experience and advice, as it seems that C221/C222 are not really done for our HT.

Best Regards


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post #7285 of 7396 Old 01-04-2019, 03:22 AM
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Up


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post #7286 of 7396 Old 01-04-2019, 09:48 AM
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13 ft to 16 ft from the speaker (4m to 5m)


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post #7287 of 7396 Old 01-04-2019, 10:29 AM
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Thanks a lot!


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post #7288 of 7396 Old 01-04-2019, 11:50 AM
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No issues at all. I would suggest you upgrade the compression driver. Plenty of info on that in this thread. Enjoy them, I sure did.
Hi,could you just recommend me a brand/model of compression driver for doing the uograde? This thread is 245 pages long and that makes very difficult to find that information. Thanks!

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post #7289 of 7396 Old 01-04-2019, 11:59 AM
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Sure - JBL 2453H-SL
Much appreciated. tks!
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post #7290 of 7396 Old 01-04-2019, 12:39 PM
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13 ft to 16 ft from the speaker (4m to 5m)


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I'm 10 feet from the center channel, a bit further obviously to the L/R and there are zero issues with being that far away so you are easily good to go. I did the upgraded compression drivers and the result is that I'm 2+ years of having these speakers and still have no desire to upgrade/switch which for me is an eternity.

You can sell the original CD's on ebay for 100 each/300 total. They sound good, but it's a significant difference IMO.
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