[bambino]

Thanks guys.... its been a fun project....



Can't wait to get it dialed in -

Me niether, i can't wait till i find your house, hope you don't mind.:heehee:

 

[Warpdrv]

Final Sweep, Waterfall and spectogram...

Sweeps along the way...
Original OLD EQ, new subs

Main behind plasma

Getting things together, EQing and adding subs along the way. These are the measurements we kept which looked the best throughout the trials and errors of 50-75 sweeps or so I think....

We spent alot of time going through about 50 to 60 sweeps at least... 4 hours running multiple different sweeps and some varying placement options, moving the main sub behind the plasma and back out to the left of the entertainment console. I think the measurements came out very nicely with what we have to work with in there.

There is alot of balancing acts to perform... once getting phase and delay setup, getting one sub EQ'd and then introducing the second and then third and forth - the interactions that come into play are astounding - it gets somewhat overwhelming...

Ya can't EQ too much before introducing the next sub - which will add different peaks and dips that can become drastically worse if EQ was applied previously. So you have to do a great deal of before and after measuring and adjustments just starting with 1 sub and moving on to the next...

I tried to boost the low end with the DCX, ran with 7 - 9db, but I think I may need to do more tweaking and experimentation. My room is so large and I get absolutely zero gain down low..... Don't get me wrong - the bass in this room is super clean and the output is staggering, I am by no means disappointed with the SQ or output, I can be 15-20db hot and it'll keep up with no problems at all... I like to run about 5-10db hot so the additional drivers and amps have been and will be priceless for the future.

I may have to look into something more for the signal shaping of the sealed cabs here... I have never been one who chases the single digits output and trust me when I tell you that things are seriously shaking in my house.

 

[Drizt]

Sorry if I missed it, but how much cabinet vibration are you getting with those subs under high loads ?

 

[Warpdrv]

Absolutely none - cabinets are 100% completely inert.
That is the benefits of the dual opposed, vibration free.
I'll have to do a small video or something.
Posted via Mobile Device

 

[Drizt]

Cheers thanks.

I had been lead to believe that the drivers would need to be physically attached (metal rods etc) to completely eliminate vibrations.

 

[Warpdrv]

Nope just mount drivers on opposing sides.... and they will cancell out each others movements
A good well braced cab is always a good thing - and one doesn't have to go overboard to make that..

 

[gperkins_1973]

These are great looking subs and this in one off the reasons why I went back to ported. I had a dual FI Q18 sealed sub and felt I never had enough low end. A great response but I would have expeceted more down low. I had a qtc off 0.9 hence having to boost the bottom end. It looks like you are 12db down between 20 and 15hz so you're probably not getting a great deal below that. Music wise I bet they sound great but I would feel like I am wanting more.

Sorry for the negatives but great subs all the same.

cheers


Graham

 

[Warpdrv]

I agree graham, no offense taken.... Personally I really don't care for ported with port contributing to the sound at or near tuning.

My room is 8200^3 open to everywhere (so like 10-15K cubed or more) so no room gain down low for me, but I am not finished here... I still have to do the low end boost to work out the final details. This first run was to see what we could come up with for eq and placement, ran out of time to get started in boosting... I'm pretty confident I'll be able to sqeeze a little more performance out of them down low.

I'll be working out the details as to low end boost and see where things lie after that...
I'm in no hurry as I just got the last cab in place and I haven't gone the extra mile on the rest just yet.

 

[lsiberian]

These are great looking subs and this in one off the reasons why I went back to ported. I had a dual FI Q18 sealed sub and felt I never had enough low end. A great response but I would have expeceted more down low. I had a qtc off 0.9 hence having to boost the bottom end. It looks like you are 12db down between 20 and 15hz so you're probably not getting a great deal below that. Music wise I bet they sound great but I would feel like I am wanting more.

Sorry for the negatives but great subs all the same.

cheers


Graham

lets remember that he is using the best driver for the job so he gets a bit more on the low end than others would. Still sealed subs have there place and in many cases can sound better. I've found it's typically a matter of personal preference. I've found sealed preferable in most cases do to the savings in size, labor, materials.
I'm glad you finally got your hands on these Warp.

 

[gperkins_1973]

These are really nice looking subs warp. John has defo done a great job on those babies. I remember on my first dual sealed I did with two Q18 drivers I had to boost the bottom end which is normal with sealed subs and I got it flat to 12hz after playing with filters on my BFD. Look forward to your next results.
Just out off interest how many subs did you use in the end.

cheers

Graham

 

[Warpdrv]

I'm glad you finally got your hands on these Warp.

Thanks buddy.... Its been a long wait - it'll only get better.

Was running through a good deal of bass tunes last night with a buddy and they really aren't working all that hard and just put out some prodigious amounts of really clean bass.

These are really nice looking subs warp. John has defo done a great job on those babies. I remember on my first dual sealed I did with two Q18 drivers I had to boost the bottom end which is normal with sealed subs and I got it flat to 12hz after playing with filters on my BFD. Look forward to your next results.
Just out off interest how many subs did you use in the end.

cheers

Graham

What method did you use to boost your subs down low.....?


I'm going to try a couple different things here to see what works and measures best - with the DCX using a 12db/oct high shelf filter at 20 or a touch higher to see what that yields, I also have a MIC2200 to try and boost the lows to see what I come up with.

Thoughts anyone...?

 

[gperkins_1973]

Here's my old sealed sub graph and the filters I used on my BFD to get it flat. I applied a boost at 20hz and with a max bandwidth setting I got the bottom end to go up. I then applied a cut at around 25hz. As you are using an amp for each driver I am guessing headroom will not be an issue. I was running my sub into 4 ohms bridged and I applied as much as 14db off boost at 20hz and never came across any issues at all so you could probably add more than 8db at 20hz and still be fine. You will have to have a go and see.

Hope this helps. If there is anything I can help just shout.


cheers

Graham

 

[Warpdrv]

So you didn't use a negative 12db slope high shelving filter for this, just a boost and a cut ?

BTW - I'm running 4 subs, here.... the 3 XLerators plus a 15" TC ti close behind the seating location.... Give a bit extra of that rumble :hsd:

 

[gperkins_1973]

Basically yes. That is what I did. You are running 3 off those duals. WOW! that's some output there.

So 6 amps for those 3 subs. Is that correct? If so you may want to be prepared to re build your house. LOL.

cheers


Graham

 

[Warpdrv]

Basically yes. That is what I did. You are running 3 off those duals. WOW! that's some output there.

So 6 amps for those 3 subs. Is that correct? If so you may want to be prepared to re build your house. LOL.

cheers


Graham

Hahahah
Yeah I was looking at trying to find different more powerful amps that would be able to handle each box alone, but the costs were far to expensive (Lab Gruppen FP+14000) I already had 3 of the Crest amps and I never thought about just adding 3 more, 1 for each driver until Mike Hurd suggested it to me. This was a far cheaper method to go for me... I just found 3 more used ones at 1/10th the cost.

The Crest 8002 has an XLR in and out, so I can just daisy chain 1 amp to the next amp for that box with a short cable and then the EQ signal applies to both amps for each sub. The 8002's are very well measured amps from the Binks Amp Shootout tests.

 

[Ricci]

I just found 3 more used ones at 1/10th the cost. .

Linky sendy? I only have 4 and I need to catch up with you. :spend:

 

[Warpdrv]

Linky sendy? I only have 4 and I need to catch up with you. :spend:

Heheheh

I just scoured the usual sources as we did before.... :T
I think with all your amps and subs that I'm still far behind what you have on tap at this point.... but I'm still in the fight here... :boxer:

I think the both of us are out of our minds :coocoo:

 

[phodee6]

wikkid job dude, this makes me wanna upgrade

 

[Drizt]

hehe, you should charge a $1 per viewing of your pics.... I look at them probably about 5 times a day

Do want

 

[Warpdrv]

Thanks Drizt....

Its really gratifying hearing all the complements - and felt really good that the plans of something more then a plain ol box could come together and turn out so nicely...

I can't express how thrilled with the performance I am with these and now the new Funky Waves unit for the bedroom turned out... SQ is so huge for me as well as output and the LMS's are truly the best.... Expensive - but so worth it for many many years to come...