DIY party sub. $650 budget. Recommend me something beastly. - AVS Forum
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post #1 of 24 Old 09-05-2012, 07:36 PM - Thread Starter
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So I got a little off track with my first run... I'm looking to build a subwoofer for larger house parties. The music that will be played is all bass heavy electronic and hip hop. I'm basically looking for something you'll really feel, that will pound the chest and shake the foundation. So guests are like wow. No restraints on enclosure size.

I'd really like to use a plate amp and a single 18", yet I'm having trouble matching up the right combo... all the plate amps are 4ohm, and in 8ohm they seem too weak for half these subs. Or maybe I don't understand something...

Jay has been helping me from my original design.
Quote:
Originally Posted by Jay1 View Post

Another option I think might work really well is a pair of these ST385's
http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-130
The pair wired to 4 ohms in a single cab, 6.5 ft3 with four of those 3"x17" ports will get you a 25hz tuned cab that can handle 500 watts with over 120db above 40hz, while still having the deep bass extension.

Which will come right at about $600 (using bash 500wRMS plate amp). Any other combos/suggestions??
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post #2 of 24 Old 09-05-2012, 08:08 PM
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Keystone sub.pdf 120k .pdf file

check out Art's sub
attached is the most update file posted on diyaudio (notes list subs that fit this cabinet)

thread start
http://www.diyaudio.com/forums/subwoofers/185588-keystone-sub-using-18-15-12-inch-speakers.html
Attached Files
File Type: pdf Keystone sub.pdf (120.3 KB, 29 views)

"I should really see what dB levels I'm pushing. Long as it can't foam my beer during a movie we are ok "
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post #3 of 24 Old 09-05-2012, 08:14 PM - Thread Starter
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Quote:
Originally Posted by autox320 View Post

Keystone sub.pdf 120k .pdf file
check out Art's sub
attached is the most update file posted on diyaudio (notes list subs that fit this cabinet)
thread start
http://www.diyaudio.com/forums/subwoofers/185588-keystone-sub-using-18-15-12-inch-speakers.html

Thank you. Will look into that.
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post #4 of 24 Old 09-05-2012, 08:16 PM
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You originally wanted a smaller box size, if you really dont care about box size try a horn

http://billfitzmaurice.net/T48.html
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post #5 of 24 Old 09-05-2012, 08:25 PM - Thread Starter
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Size isn't so much of an issue as is the intricacy of the build. A horn, etc, isn't something I can complete nor have the tools for. 6.5cu is just around my ideal size, but I would go larger.

I still have such difficulty matching up subs to amps, and what's the best choice for what I'm looking for.
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post #6 of 24 Old 09-05-2012, 08:46 PM
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Quote:
Originally Posted by bobbobobbo View Post

Got it.
Any combo you can think of utilizing an 18" driver and a plate amp? Under $650? That was my first and original idea and seems to be what I'd really be looking for. Yet I can't find a plate amp that will properly match up with half the 18" pro audio subs on parts express..
Will exceed budget slightly but these seem to combo eachother.
http://www.parts-express.com/pe/showdetl.cfm?partnumber=300-809
http://www.parts-express.com/pe/showdetl.cfm?partnumber=290-698
both 4ohms. RMS values within 250 of eachother.. Though that sub only goes down to 36hz..
Will that dual 15" combo posted above vastly outperform my original RSS390HF-4 setup? Or all setups? In terms of loudness, feel...
otherwise perhaps I'll just stick with my original driver/amp. (sorry if I'm frustrating. I'm not that great with all this.)

The Impero 18 would be a solid choice, it works well in 6.5ft3 tuned to about 33hz. That "1000 watt" amp only puts out about 580 watts, so there isnt a reason to buy it over a 500 watt amp (the Yung 500watt without boost is a good choice). The impero 18 with 500watts will have a couple db more output then the pair of 15" daytons from above. But would slightly exceed xmax, and really shouldnt have more power then 500 watts. The 15" setup also goes deeper in the same box size. The HF15 you originally wanted would have about 6-9db less output capability.
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post #7 of 24 Old 09-05-2012, 09:50 PM
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As an alternative, I have an 18Sound 21lw1400 or RCF LF21N451 that I will sell. PM me for details. These 21s displace more than 18s for a single box solution, and perform very well in a 10 cube enclosure tuned to 32.


Also everyone shits when you tell them you have 21" subwoofers.

 

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It's also the very sort of Voodoo Engineering that should never be done.

 

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post #8 of 24 Old 09-05-2012, 10:11 PM - Thread Starter
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editing..
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post #9 of 24 Old 09-06-2012, 06:44 AM
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Having followed WiSounds build threads for some time, I can honestly say that his builds are Rock-Solid. I wouldn't hesitate to pick one up if I needed one.
Wi is also an excellent resource for sound reinforcement setup information, should you need some advice in that area.
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post #10 of 24 Old 09-06-2012, 02:09 PM
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Quote:
Originally Posted by PassingInterest View Post

Having followed WiSounds build threads for some time, I can honestly say that his builds are Rock-Solid. I wouldn't hesitate to pick one up if I needed one.
Wi is also an excellent resource for sound reinforcement setup information, should you need some advice in that area.

Agreed.

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post #11 of 24 Old 09-06-2012, 11:39 PM - Thread Starter
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Yup. He's been a great help!

I've decided I'm going to build a single 18" box. Then make a second one someday when I feel ballsy. Total comes to $480 through Amazon.

Behringer EP2000 amp: http://www.parts-express.com/pe/showdetl.cfm?partnumber=248-746
with
Peavey 18" lowrider: http://www.parts-express.com/pe/showdetl.cfm?partnumber=294-301

Will this be a good combo? The amp bridged is at 1000RMS 8ohm. The Driver is at 800RMS 8ohm. (the behringer claims to have a clip limiter that senses when the driver is being overdriven, as well as a clip light telling you to turn down the gain)

Going to put in a standard bass reflex box. Tuned to ?hz.
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post #12 of 24 Old 09-07-2012, 12:27 AM
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LowRider 18 is one of the best bang for the buck 18s out there, and easily serviceable if you torch one.

I referred him to the WiEasy cube: http://www.avsforum.com/t/1380474/the-wieasy-sub-and-wieasycube-nice-bass-on-the-cheap-and-easy/0_50 plans and all there.

 

Originally Posted by Bill Fitzmaurice:
It's also the very sort of Voodoo Engineering that should never be done.

 

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post #13 of 24 Old 09-07-2012, 01:07 AM - Thread Starter
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Thanks again WiSounds!!
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post #14 of 24 Old 09-07-2012, 04:52 AM
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The one change I would make is going to the EP4000 or EP2500 amp as the EP2000 will be slightly underpowered when you go to 2 subs. The ones I recommended will give plenty of power for 2 drivers and more than enough for a single driver.
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post #15 of 24 Old 09-07-2012, 11:14 AM
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Quote:
Originally Posted by WiSounds View Post

LowRider 18 is one of the best bang for the buck 18s out there, and easily serviceable if you torch one.
I referred him to the WiEasy cube: http://www.avsforum.com/t/1380474/the-wieasy-sub-and-wieasycube-nice-bass-on-the-cheap-and-easy/0_50 plans and all there.

Yeah that does look like an easy sub to build, or this one:

http://www.bcspeakers.com/suggested.php?id=0000000008 B&C SUB18

http://www.bcspeakers.com/SGG/PDF/207.pdf

4 different B&C drivers are suitable which are listed.
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post #16 of 24 Old 09-07-2012, 11:31 AM
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Quote:
Originally Posted by tsloms View Post

The one change I would make is going to the EP4000 or EP2500 amp as the EP2000 will be slightly underpowered when you go to 2 subs. The ones I recommended will give plenty of power for 2 drivers and more than enough for a single driver.

Definitely. +1

My Dual 18" LLT subs 120dB down to 10hz

 

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post #17 of 24 Old 09-07-2012, 02:12 PM
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I don't find those amps to be that good on sub. Never had the EP4000 personally, but owned the Behringer EP2500 and EP1500 and didn't find they could cope well on sub bass. That's being ragged the hell out of in a pa situation, whereas the QSC RMX series amps I owned at the time did.

Something like the T.amp 1400 or T.amp 2400 I heard are very good on sub, from many people who have used them. As they say they have an oversized(many massive caps and very large torridal) power supply inside them.
Whereas the Behringer amps don't have oversized power supplies required for heavy duty sub bass.... And they tend to clip much easier on sub, fine on upper bass,mids and highs I heard though.


http://www.thomann.de/gb/tamp_ta1400_amplifier.htm (450w rms into 8 ohms per channel)
http://www.thomann.de/gb/t-amp_ta2400.htm (650w rms into 8 ohms per channel)
Both about the same prices as the different Behringer amps.

The Behringer amps for house party use should be ok, just depends how hard your caining them on the sub bass frequencies... Too hard they will clip easily, pretty sure the new Behringer EP4000 isn't much different than the older EP2500, could be wrong though.
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post #18 of 24 Old 09-07-2012, 02:27 PM
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If you get into that price bracket, an Ashly KLR series would be the choice. Flat to 3hz and durable. I beat the **** out of my KLR3200s and 2000s and they have run problem free.

 

Originally Posted by Bill Fitzmaurice:
It's also the very sort of Voodoo Engineering that should never be done.

 

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post #19 of 24 Old 09-07-2012, 08:06 PM
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I've used my EP2500 to power my 4 Mach 5 IXL18.4's for the past 6 years and the amp does a great job of pushing the subs. I have no doubts that its putting out the full 2000 watts to the subs. Look around and you will see that these amps are the default amp to go to for sub bass power.
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post #20 of 24 Old 09-18-2012, 10:14 PM
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Quote:
Originally Posted by tsloms View Post

I've used my EP2500 to power my 4 Mach 5 IXL18.4's for the past 6 years and the amp does a great job of pushing the subs. I have no doubts that its putting out the full 2000 watts to the subs. Look around and you will see that these amps are the default amp to go to for sub bass power.

That really depends on the maximum SPL and type of music played, with any EQ kind of boosting though?
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post #21 of 24 Old 09-21-2012, 08:41 AM
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I have an EP-2500 running my IB in the house wired to 2 Ohms per channel. I often run it hard and have never clipped it in the 6 or 7 years it has been in use. I have another EP-4000 pushing 2 Lowrider 18's in big ported boxes for my outdoor rig (party rig). It gets pushed REALLY hard to the point of dimming lights in my kitchen and have never clipped it either.

120@20@14'
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post #22 of 24 Old 09-21-2012, 02:26 PM
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Quote:
Originally Posted by cecaa850 View Post

I have an EP-2500 running my IB in the house wired to 2 Ohms per channel. I often run it hard and have never clipped it in the 6 or 7 years it has been in use. I have another EP-4000 pushing 2 Lowrider 18's in big ported boxes for my outdoor rig (party rig). It gets pushed REALLY hard to the point of dimming lights in my kitchen and have never clipped it either.

Then again it must be a different beast than the EP2500 and EP1500 I had, they clipped easy when pushed hard.
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post #23 of 24 Old 09-21-2012, 05:49 PM
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I'm pushing 4 IXL18.4's with my EP2500 and have no problem clipping when cranking it up. I really need to get a bigger amp for them but for 95% the 2500 is all I need.
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post #24 of 24 Old 09-25-2012, 02:55 PM
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Quote:
Originally Posted by ItchyTasty42 View Post

Then again it must be a different beast than the EP2500 and EP1500 I had, they clipped easy when pushed hard.

Maybe it was the signal clipping?

120@20@14'
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