I have 14 cf for a sub enclosure - can you suggest a build? - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 7Likes
  • 1 Post By michael hurd
  • 2 Post By Randy_J
  • 1 Post By notnyt
  • 1 Post By notnyt
  • 1 Post By Trimlock
  • 1 Post By philipbtz
 
Thread Tools
post #1 of 24 Old 10-23-2018, 06:24 PM - Thread Starter
Newbie
 
Join Date: Oct 2018
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 0
I have 14 cf for a sub enclosure - can you suggest a build?

Hello all. Long time lurker. I finally created an account to ask for some specific advice. My wife has given me permission to build a subwoofer enclosure to go under the TV and between the left and right speakers in the living room. Room is roughly 2800sf which opens into the dining room and kitchen. I don't know how sf changes when the room is not enclosed on all sides.



Dimensions I have to work with are 48"W x 30"H x 17"D, which comes out a hair above 14cf. I just ordered a new nx6000DSP so I will plenty of power. AVR has full xt32 for what its worth. Ideally I would like to only use one channel of the amp in case I want to ever add something to the rear of the room. All I could fit in the back would be something horizontal behind the couch. But if you don't think I would ever need anything else than both channels can be used.



I've read enough about Marty and VBSS enclosures. Not sure if that's the best route. Ideally I would like something that's fairly powerful down to 20Hz. I'm 80% movies and gaming. Rarely will I play at crazy levels. But having it when I want it is important. I don't think I care to go down to 16-17Hz. I am not sold on any drivers. 18's would be ideal. Total max budget for drivers is $650ish.


I've spent a total of maybe 1 hour with WinISD and just don't quite understand how to create ported enclosures. There's so many vented types. Also don't understand anything about port width and length, port velocity, etc.



Thank you for any assistance you could provide.
theuglylawyer is offline  
Sponsored Links
Advertisement
 
post #2 of 24 Old 10-23-2018, 06:55 PM
AVS Forum Addicted Member
 
BassThatHz's Avatar
 
Join Date: Apr 2008
Location: Northern Okan range (NW Cascades region)
Posts: 10,815
Mentioned: 235 Post(s)
Tagged: 0 Thread(s)
Quoted: 3777 Post(s)
Liked: 4294
You might be able to fit a pair of B&C 18's in that box. Say the ones around the $300 mark, that puts you at $600 for drivers.
Dual 8-ohm, wired for 4-ohm on a single channel. Leaving the other channel free for another 2 in the future, or maybe an SI-24 or HST-18 (a single channel won't be enough for those two drivers, but it should still be "good enough").
BassThatHz is offline  
post #3 of 24 Old 10-23-2018, 07:05 PM
AVS Forum Special Member
 
zora's Avatar
 
Join Date: Nov 2003
Location: Walla Walla, WA
Posts: 1,057
Mentioned: 2 Post(s)
Tagged: 1 Thread(s)
Quoted: 103 Post(s)
Liked: 82
What is the total volume of the Lil'wrecker? Big, powerful tapped horn and you have the perfect amp power.
zora is offline  
Sponsored Links
Advertisement
 
post #4 of 24 Old 10-23-2018, 07:16 PM
Senior Member
 
Join Date: Jul 2016
Location: Maple Grove MN
Posts: 401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 192 Post(s)
Liked: 159
To bad you order the inuke amp already. You could put a Hs-24 in to that space and run it with a speaker power sp1-4000. That is roughly what i am working on now. Should rock pretty well when done.
Randy_J is offline  
post #5 of 24 Old 10-23-2018, 07:21 PM
Senior Member
 
ghart999's Avatar
 
Join Date: Jun 2005
Posts: 303
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 164 Post(s)
Liked: 60
Quote:
Originally Posted by BassThatHz View Post
You might be able to fit a pair of B&C 18's in that box. Say the ones around the $300 mark, that puts you at $600 for drivers.
Dual 8-ohm, wired for 4-ohm on a single channel. Leaving the other channel free for another 2 in the future, or maybe an SI-24 or HST-18 (a single channel won't be enough for those two drivers, but it should still be "good enough").
Could you point to the exact drivers your referring to? Seems they are well over $650.

Last edited by ghart999; 10-23-2018 at 07:54 PM.
ghart999 is offline  
post #6 of 24 Old 10-23-2018, 07:24 PM
Senior Member
 
ghart999's Avatar
 
Join Date: Jun 2005
Posts: 303
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 164 Post(s)
Liked: 60
Quote:
Originally Posted by Randy_J View Post
To bad you order the inuke amp already. You could put a Hs-24 in to that space and run it with a speaker power sp1-4000. That is roughly what i am working on now. Should rock pretty well when done.
Except that amp is $1000 vs $400 for the 6000? And the 24 is $2500.

Last edited by ghart999; 10-23-2018 at 07:59 PM.
ghart999 is offline  
post #7 of 24 Old 10-23-2018, 07:40 PM
Senior Member
 
16hz lover's Avatar
 
Join Date: Jul 2004
Location: Southeast
Posts: 203
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
Liked: 70
SI 24" driver, your search will be over.

I'm not talking about the kind of speakers you just listen to, I'm talking about the kind of sound you can feel.
16hz lover is offline  
post #8 of 24 Old 10-23-2018, 07:44 PM
Senior Member
 
16hz lover's Avatar
 
Join Date: Jul 2004
Location: Southeast
Posts: 203
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
Liked: 70
Quote:
Originally Posted by ghart999 View Post
Except that amp is $1000 vs the $400 I paid for the 6000? And the 24 is $2500. Or am I missing something?

You are way off on the 24"driver as it is half of your figure. It is 1275.00

I'm not talking about the kind of speakers you just listen to, I'm talking about the kind of sound you can feel.
16hz lover is offline  
post #9 of 24 Old 10-23-2018, 07:58 PM - Thread Starter
Newbie
 
Join Date: Oct 2018
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 0
Guys - I mentioned a $650 budget. Why are people suggesting a $1300 driver?
theuglylawyer is offline  
post #10 of 24 Old 10-23-2018, 07:59 PM
AVS Forum Special Member
 
michael hurd's Avatar
 
Join Date: Nov 2007
Posts: 3,423
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 637 Post(s)
Liked: 686
Quote:
Originally Posted by theuglylawyer View Post
Guys - I mentioned a $650 budget. Why are people suggesting a $1300 driver?

Reading... fail.
bebb likes this.

Ask your doctor if DIY is right for you. Side effects of DIY may include anxiety, elevated blood pressure, lightheadedness, rapid heartbeat, skeletal muscle flaccidity, euphoria, psychological dependence, insomnia, confusion, blurred vision, impulsivity, uncontrolled or repeated movements.
michael hurd is offline  
post #11 of 24 Old 10-24-2018, 02:43 AM
Senior Member
 
Join Date: Jul 2016
Location: Maple Grove MN
Posts: 401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 192 Post(s)
Liked: 159
Quote:
Originally Posted by ghart999 View Post
Except that amp is $1000 vs $400 for the 6000? And the 24 is $2500.

Sorry i had missed yoyour price range in the first post. Yes the amp is 1000$ but the sub is not 2500$ i got my pair for 900$ each shiped on sale. So you may need to wait and be patient. The do go on sale every now and then. I would bet black Friday will be the next one. They are extremely impressive subs and 1 will out do 2 to 4 18s. So just food for thought.
Randy_J is offline  
post #12 of 24 Old 10-24-2018, 03:28 AM
Newbie
 
keylight93's Avatar
 
Join Date: May 2014
Location: Brooklyn, NY
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 10
You could fit 2 dayton audio rss460ho-4 18s in that space. They are $300 each at Parts Express.
keylight93 is offline  
post #13 of 24 Old 10-24-2018, 04:01 AM
Senior Member
 
Join Date: Jul 2016
Location: Maple Grove MN
Posts: 401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 192 Post(s)
Liked: 159
Quote:
Originally Posted by michael hurd View Post
Reading... fail.
You are 100% right it was a reading fail. I was half a sleep when i posted that. But still stand by what i said.
michael hurd and bebb like this.
Randy_J is offline  
post #14 of 24 Old 10-24-2018, 04:05 AM
AVS Forum Special Member
 
johnson636's Avatar
 
Join Date: Jan 2006
Location: Somewhere in the Outer Rim
Posts: 2,489
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1231 Post(s)
Liked: 709
Quote:
Originally Posted by theuglylawyer View Post
Guys - I mentioned a $650 budget. Why are people suggesting a $1300 driver?
So what have you come up with?

Automation: Alexa- Harmony Hub- Wemo Dimmer Switch- Wemo Smart Plug BatCave: SY Triple Black
Video Image: JVC RS500- Sony UBP-800X- Chromecast- 125" wide 16x9 white over black spandex screen
Audio: 5.2.4 Marantz SR7011- (LCR) Stage Right 15" PA- (Surrounds) (4) BIC FH6-LCR- (Atmos) (4) Dayton Audio B652 6-1/2-Inch- (Subs)2 23ishcuft ported HS24s 14-15Hz tune- 4 PA460 in ported cabs 40Hz tune- FP20000Q- 2 Sanway FP10000Q- Crown XLS1500- . To be continued...
johnson636 is offline  
post #15 of 24 Old 10-24-2018, 05:09 AM
AVS Forum Special Member
 
Join Date: Sep 2016
Posts: 1,186
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 445 Post(s)
Liked: 364
The new HT series from Fi Audio has a $500 version that models super well in a large enclosure. Although I found it models best in boxes bigger than 14cu/f. With that size and a single driver you have a lot of options.


Or you can go B&C:


https://www.parts-express.com/bc-21d...-ohm--294-6032


@eng-399 - uses these, he seems to love them


https://www.avsforum.com/forum/155-d...4-drivers.html
Trimlock is offline  
post #16 of 24 Old 10-24-2018, 07:43 AM
Senior Member
 
DaleNixon's Avatar
 
Join Date: Jul 2005
Posts: 444
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 202 Post(s)
Liked: 115
Quote:
Originally Posted by theuglylawyer View Post
...Dimensions I have to work with are 48"W x 30"H x 17"D, which comes out a hair above 14cf...

Net volume after port, driver, bracing and wall thickness will be much less than 14cf...a little smaller than the "Full Marty" which is 11cf.

_________________________________________________
Denon AVR-X4200W / Crown XLI 2500
7.4.4 Klipsch Ref. ii & In-Ceiling Atmos / Titan-615LX center
NU3000DSP - 2 SI HT18 D4's / NU6000DSP - 2 Ultimax 18"s
BenQ W1070 / 120" AT screen / Volt-10LX Atmos build
DaleNixon is online now  
post #17 of 24 Old 10-24-2018, 08:58 AM
Senior Member
 
philipbtz's Avatar
 
Join Date: May 2006
Location: Sweden
Posts: 481
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 318 Post(s)
Liked: 165
Build two boxed and put them next to each other rather than one big one. Can highly recommend doing this. 7 cubic feet per box will give you a nice and low Q as well as an easy to drive system. Go for something like the Dayton HO/HF 18" drivers.

Room| Treated | Sound| Front: Ino Audio i32s, Center: Ino Audio i16s, Surrounds: 6 x Ino a2, 6 x Ino a1, Subs: 6 x Ino Infra-Y|
Picture | Epson TW9300, Seymour Center Stage UF 130.4" retractable 2.35:1 |
Electronics | Arcam AVR390(Dirac Live), 3x Ncore nc400 monoblocks, Emotiva XPA-2 Gen2, EP4000, Panasonic UB700, Allo Katana + Isolator 1.2(Roon bridge/DAC), ATV 4K |
philipbtz is offline  
post #18 of 24 Old 10-24-2018, 10:11 AM - Thread Starter
Newbie
 
Join Date: Oct 2018
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 0
Quote:
Originally Posted by philipbtz View Post
Build two boxed and put them next to each other rather than one big one. Can highly recommend doing this. 7 cubic feet per box will give you a nice and low Q as well as an easy to drive system. Go for something like the Dayton HO/HF 18" drivers.

That's not a bad idea. Smaller than mini martys but could still get solid output with ported boxes along with 2 HO or Ultimax 18s.
theuglylawyer is offline  
post #19 of 24 Old 10-24-2018, 10:35 AM
AVS Forum Addicted Member
 
notnyt's Avatar
 
Join Date: Dec 2008
Location: Long Island, NY
Posts: 10,298
Mentioned: 323 Post(s)
Tagged: 0 Thread(s)
Quoted: 3815 Post(s)
Liked: 3771
Quote:
Originally Posted by keylight93 View Post
You could fit 2 dayton audio rss460ho-4 18s in that space. They are $300 each at Parts Express.
They're also not worth using over the UM18. 3-4db less output potential and dynamic offset issues. But still, people keep recommending these for some reason.
notnyt is offline  
post #20 of 24 Old 10-24-2018, 10:36 AM
AVS Forum Addicted Member
 
notnyt's Avatar
 
Join Date: Dec 2008
Location: Long Island, NY
Posts: 10,298
Mentioned: 323 Post(s)
Tagged: 0 Thread(s)
Quoted: 3815 Post(s)
Liked: 3771
B&C 21ds115-4. Tune to 16-17hz.

copy something like this, or just use a slot port... both work.

https://www.seaton-sound-forum.com/p...binets-8429422
Trimlock likes this.

Last edited by notnyt; 10-24-2018 at 10:39 AM.
notnyt is offline  
post #21 of 24 Old 10-24-2018, 11:20 AM
Senior Member
 
philipbtz's Avatar
 
Join Date: May 2006
Location: Sweden
Posts: 481
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 318 Post(s)
Liked: 165
Quote:
Originally Posted by notnyt View Post
They're also not worth using over the UM18. 3-4db less output potential and dynamic offset issues. But still, people keep recommending these for some reason.
The UM18 has a lot higher Qes and Qts as well as way worse sensitivity.

Room| Treated | Sound| Front: Ino Audio i32s, Center: Ino Audio i16s, Surrounds: 6 x Ino a2, 6 x Ino a1, Subs: 6 x Ino Infra-Y|
Picture | Epson TW9300, Seymour Center Stage UF 130.4" retractable 2.35:1 |
Electronics | Arcam AVR390(Dirac Live), 3x Ncore nc400 monoblocks, Emotiva XPA-2 Gen2, EP4000, Panasonic UB700, Allo Katana + Isolator 1.2(Roon bridge/DAC), ATV 4K |
philipbtz is offline  
post #22 of 24 Old 10-24-2018, 11:26 AM
AVS Forum Addicted Member
 
notnyt's Avatar
 
Join Date: Dec 2008
Location: Long Island, NY
Posts: 10,298
Mentioned: 323 Post(s)
Tagged: 0 Thread(s)
Quoted: 3815 Post(s)
Liked: 3771
Quote:
Originally Posted by philipbtz View Post
The UM18 has a lot higher Qes and Qts as well as way worse sensitivity.
Rofl,

Sensitivity at what frequency? And based on voltage or wattage?

See, when you compare with reality, this doesn't hold up. Note, the UM18 is receiving even less power than the HO in this graph as it has increased impedance over the HO18, yet it still measures more efficiently.

From data-bass, both in a 4 cube box with 20v applied.

Trimlock likes this.
notnyt is offline  
post #23 of 24 Old 10-24-2018, 11:35 AM
AVS Forum Special Member
 
Join Date: Sep 2016
Posts: 1,186
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 445 Post(s)
Liked: 364
Quote:
Originally Posted by notnyt View Post
B&C 21ds115-4. Tune to 16-17hz.

copy something like this, or just use a slot port... both work.

https://www.seaton-sound-forum.com/p...binets-8429422
The DS115 even in a smaller box would rock socks off.
notnyt likes this.
Trimlock is offline  
post #24 of 24 Old 10-24-2018, 11:56 AM
Senior Member
 
philipbtz's Avatar
 
Join Date: May 2006
Location: Sweden
Posts: 481
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 318 Post(s)
Liked: 165
Quote:
Originally Posted by notnyt View Post
Rofl,

Sensitivity at what frequency? And based on voltage or wattage?

See, when you compare with reality, this doesn't hold up. Note, the UM18 is receiving even less power than the HO in this graph as it has increased impedance over the HO18, yet it still measures more efficiently.

From data-bass, both in a 4 cube box with 20v applied.

I have no strong opinion about these drivers at all, it was just a suggestion.
bebb likes this.

Room| Treated | Sound| Front: Ino Audio i32s, Center: Ino Audio i16s, Surrounds: 6 x Ino a2, 6 x Ino a1, Subs: 6 x Ino Infra-Y|
Picture | Epson TW9300, Seymour Center Stage UF 130.4" retractable 2.35:1 |
Electronics | Arcam AVR390(Dirac Live), 3x Ncore nc400 monoblocks, Emotiva XPA-2 Gen2, EP4000, Panasonic UB700, Allo Katana + Isolator 1.2(Roon bridge/DAC), ATV 4K |
philipbtz is offline  
Sponsored Links
Advertisement
 
Reply DIY Speakers and Subs

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off