Holy SonoSub!

jakelm

Well???????????????????????/

How does it sound????????????????????/ Or feel I must say?????

ben62670

Well it's over 6 feet tall, and when I send 300+ watts to it it starts jumping around, and I do mean laterally bouncing off the floor teetering back and forth. I was trying to cover the port with my hands, and when I let them off my buddy who was about 40' away said it felt like his ears were going to pop. Kinda like when you are coming down in a jet. I only ran a sine wave to it(TrueRta) so I don't know how its going to hit. Also it was in a 40*100 foot warehouse with 14 foot ceilings. The owner told me to turn it off cause it was hurting his head. My buddy suggested bolting it to the floor. As for SQ I have no Idea. The sub might as well been outside.

jakelm

......

jakelm

ben62670 wrote: »

Well it's over 6 feet tall, and when I send 300+ watts to it it starts jumping around, and I do mean laterally bouncing off the floor teetering back and forth. I was trying to cover the port with my hands, and when I let them off my buddy who was about 40' away said it felt like his ears were going to pop. Kinda like when you are coming down in a jet. I only ran a sine wave to it(TrueRta) so I don't know how its going to hit. Also it was in a 40*100 foot warehouse with 14 foot ceilings. The owner told me to turn it off cause it was hurting his head. My buddy suggested bolting it to the floor. As for SQ I have no Idea. The sub might as well been outside.

THATS WHAT I'M TALKING ABOUT......MY KIND OF SUB!!!!!


I read you tuned it to 19hz. I bet you could tune it much lower.

ben62670

jakelm wrote: »

THATS WHAT I'M TALKING ABOUT......MY KIND OF SUB!!!!!


I read you tuned it to 19hz. I bet you could tune it much lower.

I tuned it to 15. The subs Fs is 19
Its in the house now.

jakelm

Very cool Ben. Are you going to run some TrueRTA testings on it? I'd like to see those readings..

ben62670

jakelm wrote: »

Very cool Ben. Are you going to run some TrueRTA testings on it? I'd like to see those readings..

I have the kids, and don't have a safe place to put them. I don't know where my ear protection is either. Probably tomorrow night. Watching Ice age now. There is a lot of low level stuff I never heard or felt before. It digs real deep.

jakelm

Kids nore Ice Age should NEVER stand in the way of scientific research...:p

I would run TrueRTA while Ice Age is on.....





But watch the cartoon you big kid.....:eek:

ben62670

Well I got it in the house today, and some friends came over to see me. Of coarse they wanted to hear it. So my friends wife took the kids for a walk, and we proceeded to play one of those bass head Cd's. The guy tells me I assume no responsibility for any damage to your amp or sub woofer if you play this. So I play it. The thing was jumping around like a Mexican jumping bean. So one guy about 210 lbs goes over to try to hold it down so I can crank it. Doesn't work. So the bigger guy (250 lbs) goes over to to help him. Well both of them managed to hold it down by putting almost all of their weight on the thing. It sounded like a jack hammer when it was jumping during certain bass tracks. This sucker digs deep!

Face

I really would love to build one of these. But the problem comes afterwords, where to put it?!

ben62670

Face wrote: »

I really would love to build one of these. But the problem comes afterwords, where to put it?!

It only takes up a little floor space. Less than a standard box.

ben62670

Any idaes on how to keep this thing on the floor other than bolting it to the floor, or not turning it up? I was thinking of pouring a 3" thick concrete round slab the diameter of the sub, and the sub to the slab with a rubber pad under the whole thing.

Deadof_knight

Parts Express I believe........Ben you have to post what the hz are Im getting ready for my rockford 18's I was thinnking of doing a push push Isobaric , or simply 2 of them side be side I already have the speakers .I just need the time to make the boxes and cut the wall under the satirs to put them in .....


The Isobaric should be nice and controlled plus go an octave lower ..... from what I understand but that means its down -3db or too have two seperate 18's haha shhhaaazaaam Instant earthquake

ben62670

Deadof_knight wrote: »

Parts Express I believe........Ben you have to post what the hz are Im getting ready for my rockford 18's I was thinnking of doing a push push Isobaric , or simply 2 of them side be side I already have the speakers .I just need the time to make the boxes and cut the wall under the satirs to put them in .....


The Isobaric should be nice and controlled plus go an octave lower ..... from what I understand but that means its down -3db or too have two seperate 18's haha shhhaaazaaam Instant earthquake

If I knew this was going to happen I may have built a box to mount the sub in the side, and run the sonotube from the box. I have never seen anything like this. My 68 Bronco had two old Orion's in an Isobaric band pass that put out a ton of bass. the kind that makes your vision blurry, and your voice warble. This sonotube does the same. But your Idea of the ISO box sounds good. I have never felt bass this low in my life!

dudeinaroom

Try putting a bottom plate on. Attach it to the feet.

Deadof_knight

You need weight alot of weight !!!!!!!! and spike it to the floor ....Lead ballast !!

That is awesome to hear it gets my blood going .....ahhh sorry honey no I didnt fix your car I had to build my insane 18" inch sub enclosure ...... So I could rattle your fillings loose during the movies .... muhahhahaha

Deadof_knight

It looks good just HUGE !!! but that whats wonderful about it !!!!

ben62670

Deadof_knight wrote: »

You need weight alot of weight !!!!!!!! and spike it to the floor ....Lead ballast !!

That is awesome to hear it gets my blood going .....ahhh sorry honey no I didnt fix your car I had to build my insane 18" inch sub enclosure ...... So I could rattle your fillings loose during the movies .... muhahhahaha

I would need to spend more on the lead than I did on the speaker:eek: Total cost was under $250. 35 for tube (used half), $166 for the driver plus shipping(sale), and I had the amp (850 watts clean at 4 ohms), wood, glue, and paint.
I will video tape this soon. how do I post a video?

Early B.

OK, but how does it sound????

ben62670

I haven't had time to run music through it yet. Just some HT tracks, and those base disk that kids have. I guessing but I don't think that it will be as tight as I want for music, but then again I am very picky. My GF thinks I'm like Monk on TV

Edit BTW I ws hitting 120dbl at 15hz
Full scan when I figure out how to keep it on the floor.

tryrrthg

dudeinaroom wrote: »

Try putting a bottom plate on. Attach it to the feet.

Yep, this will help keep it from jumping, but it will likely still "walk". rubber feet might keep it in place.

ben62670

I am going to have to bolt the plates together. I had that in the plans, and a top plate(I already have them cut). I was in now hurry to put them on because I didn't expect it to jump like that.:eek: I am more than thriller with this thing for movies. I'm not sure about music yet. I will test that tonight.

madmax

Can't really tell by the pics, is the driver on the bottom? If so you could probably raise it higher off the ground to help with the bouncing.
madmax

ben62670

madmax wrote: »

Can't really tell by the pics, is the driver on the bottom? If so you could probably raise it higher off the ground to help with the bouncing.
madmax

The plans call for 3" legs, and the driver is on the bottom. If i raise it would it have any adverse effects on the sound? Originally I was thinking of building 2 of these, but no way! It feels like you are in a plane and dropped a 1000' in a second to my ears:eek:
Thanks Ben

ben62670

OK I got the bottom plate on it now, and some foam tape. I know its kinda ghetto but I had some tape that you use when you mount a cap on a pickup. I covered about 70% of the plates surface. It stopped the jack hammer noise, and tightened things up a bit. now I need to get some time to hear some music.

Early B.

Please let us know. I'm real curious to hear how it sounds with music.

ben62670

Good. The only problem I am having is I am using an HK AVR-235 for a Pre Pro. I can not set the crossover manually for the sub. I have the front speakers set to 60hz (SDA-SRS). My mains put out good bass, but I wanted to take some stress off of them for HT. I am having a problem with resonance with the sub. The program I used didn't call for any foam, or poly fill. So I don't know if its the fault of the sub or if its do to a possible 12db crossover in the HK. This is looking like a good excuse for getting an Outlaw 990 with better bass management, and a 24db crossover:D. Now I just need to come up with $1150 for the Pre Pro.:( I had the woofer going so low today that pieces were falling from my drop ceiling. Also one of the problems is paneling in the room:mad: I can't do anything about the paneling because I don't own the place. Well back to the music. Fleetwood Mac

ben62670

As I thought. Lame pre for sub control. The HK would work nice with powered sub amps that have built in crossovers, but not for straight amps. Curve was very disappointing. I think my port is way to short!
10-68
15-80
20-84
20-84
25-86
30-93
35-95
40-95
45-96
50-90
55-92
60-91
65-93
70-91
75-89
80-90
100-83
110-81
120-80
140-77
160-72
180-69
200-71
220-72
240-68
260-64
300-70
Given that this is in room, in a corner I do realize that there are acoustics involved, but the low dip sucks. 10-25hz

Face

ben62670 wrote: »

Given that this is in room, in a corner I do realize that there are acoustics involved, but the low dip sucks. 10-25hz

Can the human ear even detect noises below 20?

ben62670

Face wrote: »

Can the human ear even detect noises below 20?

I can't hear 25, but you can feel it!