JohnnySub 1st Build Begins - Dayton RSS460HO - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 62 Old 02-22-2016, 07:05 AM - Thread Starter
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JohnnySub 1st Build Begins - Dayton RSS460HO

After all the help I got from you guys, it is time to get into it! Here is the models for the build, components will be listed a bit later.

Heading to Home Depot and component store later today!

Any comments are welcome

Added the corrected cut list.

Here is a 3D drawing of the finish product.
Attached Files
File Type: pdf JohnnySub-BASSBOX SV2.3-4.pdf (372.4 KB, 318 views)
File Type: pdf JohnnySub SV3 - Cut list final.pdf (161.2 KB, 242 views)
File Type: pdf JohnnySub SV3.pdf (6.1 KB, 205 views)

Dedicated Sonus Faber HT 7.2.4 | FRONTS: Sonus Faber Venere 2.0 CENTER: Sonus Faber Venere Centre FRONT WIDES: Sonus Faber Venere 1.5 SURROUNDS: Sonus Faber Venere 1.5 TF/TR - ATMOS-DTS:X: Sonus Faber Venere Wall (4) | RECEIVER: Marantz SR7010 AMPLIFICATION: Monolith 7x200 | SUBWOOFERS: Dual 18" Dayton RSS460 Custom Build | Behringer iNuke 6000DSP | Velodyne SMS-1 DISPLAY: JVC D-ILA RS-46 w/ 128" 16:9 1.4 TREATMENT: Custom Bass Traps and Acoustic Panels (11)

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post #2 of 62 Old 02-22-2016, 12:30 PM
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Glad to see you pull the trigger!! Enjoy the build.
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post #3 of 62 Old 02-22-2016, 06:03 PM - Thread Starter
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Went out today to buy the RSS460HO-4 and the Behringer iNuke 6000DSP. Good news, the store owner was in a good mood and gave me 20% OFF the iNuke, way to start a build on the right foot

My only complain so far is that the amp is too loud for me. Even with the door shut, I can still hear a little vibration, kind of a central vacuum whine, less loud but still... I might go for a fan swap!

Here is a couple pictures of day, tomorrow heading to Home Depot to get the MDF panels :roll eyes:

UPDATE: Just ordered a pair of Noctua cooling fan to tame the noise
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post #4 of 62 Old 02-22-2016, 10:31 PM
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Looks good. The only thing I would suggest is laying the cuts on the mdf panels a little differently so you'll have less and easier cuts. For example, two panels that have one dimension that is 24" can be place on top of each other. Then you can make one 24" cut down the the short side of the panel, then make two more cut for the other dimension to get a 24xA and 24xB. Hope that makes sense.

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post #5 of 62 Old 02-23-2016, 08:34 AM - Thread Starter
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Here is a sketch with the braces. Is it ecnough? Or too much? Please let me know what you think
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File Type: pdf JohnnySub SV3 with braces.pdf (40.4 KB, 238 views)

Dedicated Sonus Faber HT 7.2.4 | FRONTS: Sonus Faber Venere 2.0 CENTER: Sonus Faber Venere Centre FRONT WIDES: Sonus Faber Venere 1.5 SURROUNDS: Sonus Faber Venere 1.5 TF/TR - ATMOS-DTS:X: Sonus Faber Venere Wall (4) | RECEIVER: Marantz SR7010 AMPLIFICATION: Monolith 7x200 | SUBWOOFERS: Dual 18" Dayton RSS460 Custom Build | Behringer iNuke 6000DSP | Velodyne SMS-1 DISPLAY: JVC D-ILA RS-46 w/ 128" 16:9 1.4 TREATMENT: Custom Bass Traps and Acoustic Panels (11)

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post #6 of 62 Old 02-23-2016, 09:42 AM
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Bracing looks good. I'm time limited, so when I start building my Johnny sub in the next week or two, I plan to cut a big 18" circle out in the middle of the center brace, then cut strips about 2" wide to brace the sides, front, and the top panels to the center brace.
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post #7 of 62 Old 02-23-2016, 10:57 AM - Thread Starter
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Quote:
Originally Posted by thucker View Post
Bracing looks good. I'm time limited, so when I start building my Johnny sub in the next week or two, I plan to cut a big 18" circle out in the middle of the center brace, then cut strips about 2" wide to brace the sides, front, and the top panels to the center brace.
That's a good idea!

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post #8 of 62 Old 02-23-2016, 08:46 PM - Thread Starter
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The build has officially begun Thanks to the best neighbour in the world, Dave, who do some woodwork for me just for the fun of it (and a couple free Miller Lights)

Can't wait to power up that baby!
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post #9 of 62 Old 02-24-2016, 11:09 AM
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Wow, that guy has a crazy workshop!
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post #10 of 62 Old 02-24-2016, 01:18 PM
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Good progress!
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post #11 of 62 Old 02-24-2016, 02:02 PM
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Man, he even rounded over the edges on the brace pieces... probably just wanted to show off the router table!

Looking good so far!
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post #12 of 62 Old 02-24-2016, 06:50 PM - Thread Starter
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Quote:
Originally Posted by Michael Rodriguez View Post
Wow, that guy has a crazy workshop!
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Originally Posted by muzz View Post
Good progress!
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Originally Posted by squiers007 View Post
Man, he even rounded over the edges on the brace pieces... probably just wanted to show off the router table!

Looking good so far!
Thanks guys! Indeed, Dave has quite the work shop and the is only half of it, plus his garage! He has all known tools I believe! Such a great guy, very generous!

Progress has been made today. Only hiccup is that my driver cutout is too small, I will have to slightly enlgare it tomorrow with a router.

Getting ready to fire up that baby tomorrow night with my brother-in-law who is coming from Ottawa. I told him that it should just be a bit louder than his SVS PB-1000

If I'm satisfied, I'm starting the 2nd build right after this one!
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Dedicated Sonus Faber HT 7.2.4 | FRONTS: Sonus Faber Venere 2.0 CENTER: Sonus Faber Venere Centre FRONT WIDES: Sonus Faber Venere 1.5 SURROUNDS: Sonus Faber Venere 1.5 TF/TR - ATMOS-DTS:X: Sonus Faber Venere Wall (4) | RECEIVER: Marantz SR7010 AMPLIFICATION: Monolith 7x200 | SUBWOOFERS: Dual 18" Dayton RSS460 Custom Build | Behringer iNuke 6000DSP | Velodyne SMS-1 DISPLAY: JVC D-ILA RS-46 w/ 128" 16:9 1.4 TREATMENT: Custom Bass Traps and Acoustic Panels (11)
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post #13 of 62 Old 02-24-2016, 09:28 PM
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Quote:
Originally Posted by squiers007 View Post
Man, he even rounded over the edges on the brace pieces... probably just wanted to show off the router table!

Looking good so far!
Just curious... Is there actually any benefit of rounding the edges of the braces over?


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Just curious... Is there actually any benefit of rounding the edges of the braces over?
zero
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post #15 of 62 Old 02-25-2016, 05:19 AM
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JohnnySub 1st Build Begins - Dayton RSS460HO

Acoustically, zero.

On the other hand, I've bled on sharp MDF edges before. If you're waiting to install or adjust stuffing, lining, and/or internal wiring through the woofer cutout after the box is complete, rounding the braces sure can save your knuckles.

I may or may not be clumsier than the average person, so YMMV.
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post #16 of 62 Old 02-25-2016, 05:37 AM
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Looks good! Any reason for no round over on the outside of the box? I feel like it gives the box a really clean look, much better than those sharp square edges. That's just me though maybe!
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post #17 of 62 Old 02-25-2016, 06:27 AM
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Quote:
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Looks good! Any reason for no round over on the outside of the box? I feel like it gives the box a really clean look, much better than those sharp square edges. That's just me though maybe!
Great build.

I'll keep an eye on your thread as I'm really curious to get your opinion on your new build vs your old HSU.

I'm also eager to know what you think of the fan noise from the iNuke 6K. I've read conflicting report on this, some poster claiming the stock can be ok on the 6K but other claiming you can hear it from 25ft away.

Also read about someone who experienced overheat with Noctua fan swap.
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post #18 of 62 Old 02-25-2016, 06:36 AM - Thread Starter
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Quote:
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Looks good! Any reason for no round over on the outside of the box? I feel like it gives the box a really clean look, much better than those sharp square edges. That's just me though maybe!
Since this unit is a "prototype" me never did build a sub before, I didn't want to go crazy with the finishing. If I really like it, I'll probably router the edges and send it in for professional satin laquer finish.

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Great build.

I'll keep an eye on your thread as I'm really curious to get your opinion on your new build vs your old HSU.

I'm also eager to know what you think of the fan noise from the iNuke 6K. I've read conflicting report on this, some poster claiming the stock can be ok on the 6K but other claiming you can hear it from 25ft away.

Also read about someone who experienced overheat with Noctua fan swap.
Will let you know! As for the iNuke, it is in deed very loud. I ordered 2 Noctua fans, which should come in today and will swap the OEM fans ASAP. I can hear it even if my rack is in another room with the door shut and the SPL meter doesn't lie, the noise floor is higher be 1-2dB.

Dedicated Sonus Faber HT 7.2.4 | FRONTS: Sonus Faber Venere 2.0 CENTER: Sonus Faber Venere Centre FRONT WIDES: Sonus Faber Venere 1.5 SURROUNDS: Sonus Faber Venere 1.5 TF/TR - ATMOS-DTS:X: Sonus Faber Venere Wall (4) | RECEIVER: Marantz SR7010 AMPLIFICATION: Monolith 7x200 | SUBWOOFERS: Dual 18" Dayton RSS460 Custom Build | Behringer iNuke 6000DSP | Velodyne SMS-1 DISPLAY: JVC D-ILA RS-46 w/ 128" 16:9 1.4 TREATMENT: Custom Bass Traps and Acoustic Panels (11)
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post #19 of 62 Old 02-25-2016, 08:48 PM - Thread Starter
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Well the brother-in-law (in pictures) showed up to finish the build and obviously listen to that baby. It was a kind of eclectic night running after gear and stuff. We finally hooked it up but barely had time to listen since all the in-laws were in the house.

The first thing I notice is how LOUD this thing can play. Probably can burry the HSU without even knowing they are in the same room.

I really need to take time to tweak it, take measurements, choose a perfect spot. Many hours of "fun" tuning ahead (and many headache)!!

I wish it had more punch, but that's most likely more due to positioning than the sub itself. I tried to place the HSU up front on the left side (as seen on the picture) but it I end up with a big cancellation around 60Hz... It worries me because I was planning a second build and that's exactly where it would go

Anyhow, time will tell! Do you guys have any advice on iNuke tweaking? I have my HPF set on the SMS-1 at 18Hz 6dB/octave. Inuke level is at 11 o'clock and receiver level at 0dB. I wish I had my Denon AVR-X4100 with XT32 but it's been in service for the past 3 weeks and the tech told me to expect 2 more weeks to get the parts. Last Denon ever. Now using my old Yamaha RX-V1600 and manual setup.
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post #20 of 62 Old 02-25-2016, 09:02 PM
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I had my heart set on building the Johnny Sub, had the cutsheet drawn up and everything. Was planning on starting cutting this weekend, but after seeing your last picture, I'm second guessing myself now due to size. Might have to go with something in between the Johnny and the Martycube.

Great job on your build!!
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post #21 of 62 Old 02-25-2016, 09:16 PM
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Looks great! What did you use for the finish?

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post #22 of 62 Old 02-25-2016, 09:38 PM - Thread Starter
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Quote:
Originally Posted by thucker View Post
I had my heart set on building the Johnny Sub, had the cutsheet drawn up and everything. Was planning on starting cutting this weekend, but after seeing your last picture, I'm second guessing myself now due to size. Might have to go with something in between the Johnny and the Martycube.

Great job on your build!!
Thank You! It is big but stay tuned, I'll let you know in a couple days how it really perform compared to the HSU sound quality wise.

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Looks great! What did you use for the finish?
Thanks! I've use latex based Rustoleum flat black paint and applied it with a foam roller. Very easy, good coverage and forgiving.
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post #23 of 62 Old 02-25-2016, 10:24 PM
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It's good to see another ported build. Go big.
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post #24 of 62 Old 02-26-2016, 12:01 PM - Thread Starter
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After a few hours of listening, I have mixed feeling. I am impress with the output of the sub, but not so much with the sound quality. It is a bit boomy. Is it normal for DIY subs? Does it need more EQ than a commercial sub? Is it a bad construction?

Dedicated Sonus Faber HT 7.2.4 | FRONTS: Sonus Faber Venere 2.0 CENTER: Sonus Faber Venere Centre FRONT WIDES: Sonus Faber Venere 1.5 SURROUNDS: Sonus Faber Venere 1.5 TF/TR - ATMOS-DTS:X: Sonus Faber Venere Wall (4) | RECEIVER: Marantz SR7010 AMPLIFICATION: Monolith 7x200 | SUBWOOFERS: Dual 18" Dayton RSS460 Custom Build | Behringer iNuke 6000DSP | Velodyne SMS-1 DISPLAY: JVC D-ILA RS-46 w/ 128" 16:9 1.4 TREATMENT: Custom Bass Traps and Acoustic Panels (11)
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post #25 of 62 Old 02-26-2016, 01:48 PM
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After a few hours of listening, I have mixed feeling. I am impress with the output of the sub, but not so much with the sound quality. It is a bit boomy. Is it normal for DIY subs? Does it need more EQ than a commercial sub? Is it a bad construction?
Can you measure it and show the response?
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post #26 of 62 Old 02-26-2016, 02:54 PM
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Just curious what was the reasoning behind choosing the HO over the Ultimax?

I will be looking at 18's in the future and I am curious why a person would choose one over the other.


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post #27 of 62 Old 02-26-2016, 03:24 PM - Thread Starter
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Can you measure it and show the response?
Yes will post measurements in couple days.

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Just curious what was the reasoning behind choosing the HO over the Ultimax?

I will be looking at 18's in the future and I am curious why a person would choose one over the other.


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UM is suppose to be better below 30Hz and RSS460 better over 30Hz. I was looking for better impact rather than subsonic SPL.

Dedicated Sonus Faber HT 7.2.4 | FRONTS: Sonus Faber Venere 2.0 CENTER: Sonus Faber Venere Centre FRONT WIDES: Sonus Faber Venere 1.5 SURROUNDS: Sonus Faber Venere 1.5 TF/TR - ATMOS-DTS:X: Sonus Faber Venere Wall (4) | RECEIVER: Marantz SR7010 AMPLIFICATION: Monolith 7x200 | SUBWOOFERS: Dual 18" Dayton RSS460 Custom Build | Behringer iNuke 6000DSP | Velodyne SMS-1 DISPLAY: JVC D-ILA RS-46 w/ 128" 16:9 1.4 TREATMENT: Custom Bass Traps and Acoustic Panels (11)
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post #28 of 62 Old 02-26-2016, 03:39 PM
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UM is suppose to be better below 30Hz and RSS460 better over 30Hz. I was looking for better impact rather than subsonic SPL.
You might want to check this thread out.
https://www.avsforum.com/forum/155-di...nk-thread.html
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post #29 of 62 Old 02-26-2016, 10:37 PM
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After a few hours of listening, I have mixed feeling. I am impress with the output of the sub, but not so much with the sound quality. It is a bit boomy. Is it normal for DIY subs? Does it need more EQ than a commercial sub? Is it a bad construction?
Boomy means you have bad peaks, any sub would show that, even a pos.

Why waste $ on more cheap stuff, it's like challenging a dragon with a pocket knife.
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post #30 of 62 Old 02-27-2016, 07:35 AM - Thread Starter
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Boomy means you have bad peaks, any sub would show that, even a pos.
By your experience, anything wrong with my design or construction?

Dedicated Sonus Faber HT 7.2.4 | FRONTS: Sonus Faber Venere 2.0 CENTER: Sonus Faber Venere Centre FRONT WIDES: Sonus Faber Venere 1.5 SURROUNDS: Sonus Faber Venere 1.5 TF/TR - ATMOS-DTS:X: Sonus Faber Venere Wall (4) | RECEIVER: Marantz SR7010 AMPLIFICATION: Monolith 7x200 | SUBWOOFERS: Dual 18" Dayton RSS460 Custom Build | Behringer iNuke 6000DSP | Velodyne SMS-1 DISPLAY: JVC D-ILA RS-46 w/ 128" 16:9 1.4 TREATMENT: Custom Bass Traps and Acoustic Panels (11)
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