Feel like I just wasted $700... - Page 6

Yeah but there is mention of a change in 'Q', iirc and a loss in sensitivity. Seems to lose appeal at this point.

Looking at this out of curiosity and I have a question - do you want the...

Is the upper bass in the 60-80Hz range efficient/loud enough for you? If so I can give you a box design that is basically that efficient in room all the way down to ~12Hz maybe a bit lower.

Are you willing to give up the very low bass below ~30Hz for a very efficient design? Say ~12-15dB more efficient than the sealed cube.

Did you pick up the MIC2200?

i don't understand how not enough signal can clip an amp.

i think this mic2200 is a waste of money.

If the poster builds a ported sub, he is going to need a high pass filter. The MIC2200 can do HPF down to 10hz. If he builds a sealed sub, he will need some EQ for the low end. The MIC2200 has two bands of EQ (one for each channel). You can buy them used for around $50, so it is a cheap price for what you get.

he has no use for this.

waste of money.

he needs to be saving $ for more amps and passive radiators not wasting it on useless garbage.

You are wrong vas since any ported design requires a HPF.

We already posted that Ports are just fine and he need not waste > $150 on PRs. How about you actually go build something instead of telling everyone else what to do?? Oh,wait that would require money, a job and somewhere more then a 500sqft apartment to build something in......go figure

It doesn't "clip" per se. But not enough signal (or signal clipping at the INPUT) can have funny effects on an amp. I went thru that myself when i forgot that when wiring an unbalanced source to a balanced input amp you also have to bring the COLD wire of the XLR connector to ground.

Before i did that the sound was crap and the volume was low even though the volume control had been advanced to the point where the limiter lights on the amp were flickering. Once i wired the cold to ground, BAM. Next thing i did was quickly back down the volume control to -6dB as it got too loud for my neighbours' taste.

I'm thinking that the efficiency your sub is very low. When others mention EQ for a sealed sub they should have mentioned a LT device like a BASSIS. And for a device to EQ your response flat you will need MASSIVE amplifier power to back it up or you will significantly limit your dynamic range. You should realize that without more amplifier the sub cannot be louder - unless you have a more efficient enclosure. So I offer the two options. Both will need the MIC2200 to preform at their best.

If you expect the additional 6dB gain from the second woofer to fulfill your SPL requirement then I would suggest the "Blue pill" This is a slot ported box that can be built from 2 sheets of MDF. The dimensions are 26.5" x 24" x 37.5" hwd. The only adjustment you would need to make would be to cut the driver opening to fit your 15" as this was drawn for an 18". The plans are here: LINK
I just noticed thee is a neat video at post 140.

The"Red pill" is for if you were disgusted that your sealed sub is like 80dB 1w/1m efficient in a 2pi envrionment @30Hz. So I was offering something that would give you ~95dB @30Hz as an option. This would be a tapped horn of ~230l internal volume, not small, but alot louder. If you built 2 you'd have 20dB more above 30Hz than your single sealed box you have now.

if you are not happy with the sealed option, you can always go ported later. neo dan, scott on second reflection, and i were just trying to help you avoid the interim step.

cheers,

Yeah and if you like my subs or think they are cool then need to talk to Dan. He designed my enclosure. Hehehe... thanks Dan! Where the heck have you been, brah?

Dan, I am very interested in this tapped horn of yours.

Hey Scott,
Good to see you are still hanging out here. I've not been around much until recently.
Hornresp export:

Oooofff.. I don't know a thing about modelling horns. I can read graphs though. Heehee. I'd still like to see a DTS10-like horn made with some AV12h/x's (or maybe a single AV15h) one of these days. One or two drivers per cab for a similar form factor and a ~15hz corner. That would be awesome! Not a copy per-se but more like a tribute.

Good to see you around, Dan.

Look here's another one - LOL
http://forum.realmofexcursion.com/cl...e-ti-15-a.html

Might wanna pick that up while it's around. Good to have that third driver when that fourth goes up for sale sometime down the road. Quad 15 Ti's sounds good.

two dual-opposed 15" ti's would be a heck of a subwoofer system for sure

Yes! Damn right!

That or having them with their own enclosure would be good too.

negative. sounds lame

link?

Go with two of the easy Button builds. Dan designed it, it's good.

I built a clone of Scott's RLP enclosure, miss that thing.

My twin cabs may be up for grabs once I go quad sealed. I know someone else may still be interested in one or both but I can ping you too if I wanna give em a go again.

Sounds like you got it all down. Not much to it, really.

I can't give you advice on using the two EQ filters. That on a per person/room basis. Just keep it flat until you're ready to use those.

For the high pass filter... if you just have sealed boxes right now, leave this disabled. When you build Dan's Easy Button Max, enable the high pass filter but set it at its lowest which is 12hz, iirc. Higher up if you want more protection. Shouldn't ever be an issue though.

That's it. The levels and stuff you gotta figure out on your own. You have your own unique signal chain.

Good luck!

The high pass filter goes down to 10hz. Not sure what your tuning is going to be so can't tell you where to set it. Keep in mind the slope of the high pass filter is 12db, so if you like to play your movies real loud and/or real hot you might want to fudge it a little higher up. As far as EQ. You will need to measure your room. Can do this with REW or you can do it the hard way using a Radio Shack SPL meter and test tones. Find the peaks and flatten them out.

What's Dans EZ button build tuned to again? Isn't it something real low without a lot of net volume?


I can't be the only one who laughed.