I Need an Opinion and I Know You've Got One

[mozihan]

So, I am doing a bunch of research right now to build my own cab, but i wanna know if it would be wise to build a single cab with 2x10's and 1x15. Let me know.

[BurningSkies]

What do you know about designing speaker enclosures based around the specs of a speaker? What do you know about designing it around two different speakers?

[BogeyBass]

Originally Posted by mozihan

i wanna know if it would be wise to build a single cab with 2x10's and 1x15. Let me know.

No....

Using 2 drivers is a good idea, but using all matching drivers is a better approach.

15's work for many people and a 2x15 would be a better choice.
the eminence 3015 is a great full range driver..and a pair of those would be awesome. In about 8to 9 cubic feet tuned to 45/47hz

10's are popular choice but a 4x10 would be better than 2x10 and handle more power and offer more sensitivity.

12's are forever overlooked and a well made 4x12 would crush a 4x10 for the same price....
Just using a Quad of medium grade Eminence Delta 12B's

im sure their is plenty more experts to steer you elsewhere. but the 2x15 cabinet was a standard issue cabinet for plenty of rock stars and well known players.

[JimmyM]

you'll notice that cabs with mixed full-range speakers pretty much don't exist anymore. there's a reason...crap sound. if you do the mixing right by using a woofer and a mid driver crossed over properly, it can be great. but if you just throw full range speakers of different sizes in a box and call it macaroni, the results are never good. that's what you call "engineering by looks." you expect the 15 to give you lows that the 10's don't have, but you can design cabs to do anything you want regardless of speaker size.

but it's an exact science other than matters of taste, so read up on it and do it right.


MOD EDIT:THREAD CLEANUP of the smartasses ...


this place is an excellent resource for learning how to do cab building right, no matter what your tastes.

[AwkwardLoudness]

It would be most prudent to build a bass cab based upon a known good design. The cab dimensions, bracing, damping, porting (if not sealed), and speaker choice(s) are all critical factors in optimizing a cab's tone, range, efficiency, etc. It's best to use the same size/type speakers unless a crossover is used to separate the frequency bands feeding the different speakers.

[JimmyM]

Originally Posted by AwkwardLoudness

It would be most prudent to build a bass cab based upon a known good design. The cab dimensions, bracing, damping, porting (if not sealed), and speaker choice(s) are all critical factors in optimizing a cab's tone, range, efficiency, etc. It's best to use the same size/type speakers unless a crossover is used to separate the frequency bands feeding the different speakers.

totally agreed. lots of existing plans out there for great cabs. no use reinventing the wheel till you've got a reason to.

[Munjibunga]

Originally Posted by JimmyM

you'll notice that cabs with mixed full-range speakers pretty much don't exist anymore. there's a reason...crap sound. if you do the mixing right by using a woofer and a mid driver crossed over properly, it can be great. but if you just throw full range speakers of different sizes in a box and call it macaroni, the results are never good. that's what you call "engineering by looks." you expect the 15 to give you lows that the 10's don't have, but you can design cabs to do anything you want regardless of speaker size.

but it's an exact science other than matters of taste, so read up on it and do it right.

MOD EDIT: Smartasses Cleanup.

this place is an excellent resource for learning how to do cab building right, no matter what your tastes.

Jim Bergantino must've gotten lucky with the HT322.

[JimmyM]

Originally Posted by Munjibunga

Jim Bergantino must've gotten lucky with the HT322.

right. that's why he still makes it and didn't discontinue it.



come on, munji! you can try that stuff on newbies, but i'm a total hyper elite member here, too, although i am ashamed to admit it to anyone but you

so i'm not saying it's impossible to make a mixed driver cab like that and have it sound good, but it's extremely rare. and again, i'll point to its discontinuation. if it were really that good, he'd still be making them.

[Tracebassplayer]

QUOTE REMOVED BY MOD


That's how the "Joe blow" car stereo stores do it!!!!!!!! HHAHAHAHA

[Tracebassplayer]

Seriously though... in a nutshell....
If you want to fabricate an enclosure for mixed drivers, you'll want to separate them internally so each driver has the optimum space per it's design and port them for tuning.

[RedLeg]

Trial and error ain't cheap or easy. But who is anyone to knock him for tryin.

[BurningSkies]

[quote=mozihan;10557233Quote edited by mod: Remember guys, im still learning.[/quote]

I wasn't being sarcastic. My questions were serious. If you read them, you'll see it gives you two directions that you need to look.

[billfitzmaurice]

Originally Posted by mozihan

i wanna know if it would be wise to build a single cab with 2x10's and 1x15.

No. A 1x15 and 1x6 or 1x8, yes.
As for designing your own cab, before doing so you'd have to thoroughly understand this:
http://www.eminence.com/support/unde...dspeaker-data/

And how to use this:
http://www.linearteam.dk/default.aspx?pageid=winisd

And understand most, if not everything, posted here:
http://techtalk.parts-express.com/sh...d.php?t=219617

And then follow this:

[JimmyM]

Originally Posted by RedLeg

Trial and error ain't cheap or easy. But who is anyone to knock him for tryin.

in a world where all the trial and error can easily be simulated on a computer or has already been done for you, what's the point?

[Zooberwerx]

Originally Posted by mozihan

So, I am doing a bunch of research right now to build my own cab, but i wanna know if it would be wise to build a single cab with 2x10's and 1x15. Let me know.

The research has been done and can be had for $15:

www.billfitzmaurice.com

As asked earlier, why re-invent the wheel? If you're halfway competent with hand tools, live close to a Lowe's / Home Depot, carry a debit card, and have access to the internet (that's a given), you're almost home. Best wishes with the project!

Riis

[MuzikMan]

Buckle your seatbelt and enjoy the wonderful ride that is loudspeaker design! There is a lot of science backing up the idea that you should not mix different sized drivers in your cab, at least not your first build.

Pay special attention to billfitzmaurice and greenboy. They are very knowledgeable and have proven designs already.

http://www.billfitzmaurice.com/
fEarful™ 12/6 & 15/6 enclosure designs - FREE!

[GrowlerBox]

Originally Posted by MuzikMan

Pay special attention to billfitzmaurice and greenboy. They are very knowledgeable and have proven designs already.

http://www.billfitzmaurice.com/
fEarful™ 12/6 & 15/6 enclosure designs - FREE!

Definitely this. Or, do some actual basic research, come up with something new and sell it to us. Really.

[JimmyM]

Originally Posted by GrowlerBox

Definitely this. Or, do some actual basic research, come up with something new and sell it to us. Really.

that approach is working quite well for alex claber, paul tidwell, and duke lejuene. and greenboy, who could be making much cash if he liked woodworking

[bherman]

While I am no expert on cab design, I am an expert on cabinet hauling...

If you like the sound of 2x10s and 15s, one well-proven approach is 2 separate cabs that you can mix and match for different purposes - go with one when you only need it, for exqample. While I didn't build them, I have 2-1x12 cabinets that I use that way. I also have a 1x10 that I built recently using the very popular low-cost 1x10 cab build thread found here.

Spend some time learning how to use the search function for this forum, there is a ton of info to be had with many knowledgeable people, almost all of them very helpful and willing to pitch in.

[GrowlerBox]

Originally Posted by JimmyM

and greenboy, who could be making much cash if he liked woodworking

With the rapid advances in 3-D printing and greenboy's obvious facility with the manipulation of images, he'll soon be able to email you a new cabinet.