Crossover question

rdk · #1 11-07-2011, 08:36 AM

A guy I know has a 4x10 and a 15. He wants me to build him one solid enclosure so his new rig would be a 4x10 and a 15 in one cab. I'll obviously separate the 2 with a shelf but I was wondering about the crossover. Should I just have 2 separate inputs? One for the 4x10 and 1 for the 15? Or does anyone know a good way to crossover into 1 input?

will33 · #2 11-07-2011, 08:44 AM

That driver combination is so far out of whack there's no point in using a crossover, all you'll get is beaming highs that are so much louder the 15 will never keep up, he'll just end up blowing it trying to dial up more bass.

I'd start by explaining all the faults in that design and if he still insists on it, make yourself some nice coin and just wire them all up to a jack just as if they were separates and call it a 4ohm cab.

Lo-E · #3 11-07-2011, 08:46 AM

If he's been running them in parallel from the same amp and he's happy with the way they sound then there's no reason you couldn't just wire them in parallel internally to one jack.

rdk · #4 11-07-2011, 09:17 AM

Well I've ALWAYS heard 10's and a 15 are a bad combo. What are your thoughts? What would you suggest I do for one solid enclosure? The guy plays in a national touring melodic punk/rock group. Maybe just doing a 6x10? Or even an 8x10?

BassmanPaul · #5 11-07-2011, 09:58 AM

2x10 + a 15 will work but not 4x10s. I would think that perhaps an 8x10 would be the safest bet.

Floyd Eye · #6 11-07-2011, 10:01 AM

Many, many people run 410/115 cabs. Flea for instance.

will33 · #7 11-07-2011, 10:11 AM

Quote:

Originally Posted by Floyd Eye

Many, many people run 410/115 cabs. Flea for instance.

And you're not hearing one ounce of the sound that comes out of them, live or on recordings.

Floyd Eye · #8 11-07-2011, 10:14 AM

Quote:

Originally Posted by will33

And you're not hearing one ounce of the sound that comes out of them, live or on recordings.

That is BS dude. I suppose I am imagining the sound coming out of my 1x18, which I run in tandem with a 4x10?

JHAz · #9 11-07-2011, 10:18 AM

Well, it's been HOURS since the "paring cabs" thread was at the top of this forum, so I guess it's time, once again, to go back, Jack . . .

rdk · #10 11-07-2011, 10:20 AM

If he does end up insisting on a 4x10, do you suggest a tweeter?

Floyd Eye · #11 11-07-2011, 10:23 AM

Quote:

Originally Posted by rdk

If he does end up insisting on a 4x10, do you suggest a tweeter?

I keep the tweeter off in my 410.

And regardless of what ANYONE says in the "Pairing cabs" thread, I promise you there is an extremely audible difference in my rig when I pull the 1x18 out of the equation.

will33 · #12 11-07-2011, 10:25 AM

Quote:

Originally Posted by Floyd Eye

That is BS dude. I suppose I am imagining the sound coming out of my 1x18, which I run in tandem with a 4x10?

Sorry, was talking about the Flea rig, not your's. Whether live concert or on records, it may be some combination of DI and a mic'ed speaker with a good deal of processing in both cases, not just the sound of the various different speakers in the bass rig.

will33 · #13 11-07-2011, 10:27 AM

Quote:

Originally Posted by rdk

If he does end up insisting on a 4x10, do you suggest a tweeter?

Does the guy already have and like these speakers and just wants them all in one box? Doesn't want to buy drivers/build new rig?

Joe Louvar · #14 11-07-2011, 10:28 AM

Quote:

Originally Posted by will33

And you're not hearing one ounce of the sound that comes out of them, live or on recordings.

That’s only because we are here and not standing where Flea is.

rdk - personally, I’d tell your friend just to buy an Ampeg 810E cab w/wheels and be done with it.

Floyd Eye · #15 11-07-2011, 10:29 AM

Quote:

Originally Posted by will33

Sorry, was talking about the Flea rig, not your's. Whether live concert or on records, it may be some combination of DI and a mic'ed speaker with a good deal of processing in both cases, not just the sound of the various different speakers in the bass rig.

I understand what you are getting at, but in concert Flea uses 3 identical GK2001/4x10/1x15 stacks. If he was just mic'ing and DI ing it to the FOH, he wouldn't be using 3 of them would he? I may be wrong, but I can tell you that I have seen and heard and played 4x10/1x15 rigs and they do serve a purpose and they do make a difference.

Now, whether or not they should be paired in a cab in the way the OP suggests is probably a question for Bill F.

Floyd Eye · #16 11-07-2011, 10:29 AM

I would also go the Ampeg 8x10 route.

okcrum · #17 11-07-2011, 10:33 AM

Make the 15" a sub and cross it over like a sub. Don't limit yourself to using only regular BG drivers.

Floyd Eye · #18 11-07-2011, 10:41 AM

Most of the advice I got when setting up my rig was to run the cabs full range. I have a bi-amp 1000 watt Carvin RL. I MUCH prefer it bi-amped. I forget where I have the X-over set.

rdk · #19 11-07-2011, 11:06 AM

Quote:

Originally Posted by will33

Does the guy already have and like these speakers and just wants them all in one box? Doesn't want to buy drivers/build new rig?

He has both cabs mentioned but he is wanting that same thing in one enclosure plus new eminence speakers.

BurningSkies · #20 11-07-2011, 11:08 AM

Unless the 15 in question is designed to be a sub speaker you don't gain anything from making it a sub. If, like many 15's it rolls off fairly high (like in the 50hz range) you're not really getting much.

Also, unless you've carefully matched the sensitivity of the 4x10 and the 115 and the wattage of the two (meaning that you've got an mf'ing heavy duty 15 with lower wattage 10's), you're much more likely to just wreck 15's.