idle hands......(3x10 content).

[PBFACTOR]

so, i got bored.

happened to have a 4ohm avatar 2x10 (loaded with carvin ps10's 8 ohms each) and an extra eminence delta 10b (16 ohm).

little while later with the jig saw and soldering iron.



it's 8ohms and it sounds full and loud, real loud. i'll actually rout the other 10 flush and get one of those cheap speaker grills for it. i'll play with a drummer/band in a few days. i'll see how it hangs. should be plenty loud. if not i can add another 8ohm 2x10, for a crazy vertical 5x10 stack.

[billfitzmaurice]

The First Law of Acoustics is 'There's no such thing as a Free Lunch'. What's sacrificed in this case is the low end. It sounds loud because adding that extra driver pushed the cab resonant frequency higher, resulting in higher sensitivity in the midbass where your ears are more sensitive, at the expense of deep lows. Not that there's necessarily anything wrong with that, it's the design topology behind Schroeder cabs, so if it gets you what you want all well and good.

[Adam Bomb]

Also, it's freaky looking, like a mouse with a human ear growing out of its back.

Also, I am crazy impressed with your skillz. Suffice it to say, that's not what I do when I'm bored.

--Bomb

[PBFACTOR]

is it because of the size of the box and they're fighting for the same sonic space?

Originally Posted by billfitzmaurice

The First Law of Acoustics is 'There's no such thing as a Free Lunch'. What's sacrificed in this case is the low end. It sounds loud because adding that extra driver pushed the cab resonant frequency higher, resulting in higher sensitivity in the midbass where your ears are more sensitive, at the expense of deep lows. Not that there's necessarily anything wrong with that, it's the design topology behind Schroeder cabs, so if it gets you what you want all well and good.

[PBFACTOR]

no way, the mouse with the human ear is much freakier looking. lol.

Originally Posted by Adam Bomb

Also, it's freaky looking, like a mouse with a human ear growing out of its back.

Also, I am crazy impressed with your skillz. Suffice it to say, that's not what I do when I'm bored.

--Bomb

[Sundogue]

Originally Posted by PBFACTOR

is it because of the size of the box and they're fighting for the same sonic space?

I'm guessing it's because the internal volume now has to account for three speakers instead of two.

The smaller the box the more "mid-hump" you get. The greater the mid-hump, the less lows you get. It's the trade-off. Adding a third speaker to a cab designed for two amounts to the same thing as just reducing the internal cab volume for the original two. Hard to say if just reducing the cab for the original two would have boosted the mids as much, although now there is more overall output with the extra speaker.

So long as the three get along and they are similar in handling, the third one shouldn't get pushed around by the other two.

[Petebass]

Originally Posted by PBFACTOR

happened to have a 4ohm avatar 2x10

It's not 4 ohm any more. Depending on how you've wired the 3rd speaker up, it's now either a 2.67 ohm box, or a 5.67 ohm cab. You'll need to know which, especially if your amp is one of the many that isn't capable of running under 4 ohms.

[eastcoasteddie]

Originally Posted by Petebass

It's not 4 ohm any more. Depending on how you've wired the 3rd speaker up, it's now either a 2.67 ohm box, or a 5.67 ohm cab. You'll need to know which, especially if your amp is one of the many that isn't capable of running under 4 ohms.

2 carvin PS10 8-ohm speakers wired in Series = 16 ohm

That series connection wired in parallel with the 16-ohm Eminence speaker = 8 ohm total.... if indeed that is what the OP did (not specified)

[PBFACTOR]

it is eight ohm and wired like that. so i can stack it on or under another 8 ohm 2x10.

Originally Posted by eastcoasteddie

2 carvin PS10 8-ohm speakers wired in Series = 16 ohm

That series connection wired in parallel with the 16-ohm Eminence speaker = 8 ohm total.... if indeed that is what the OP did (not specified)

[Petebass]

Originally Posted by eastcoasteddie

2 carvin PS10 8-ohm speakers wired in Series = 16 ohm

That series connection wired in parallel with the 16-ohm Eminence speaker = 8 ohm total.... if indeed that is what the OP did (not specified)

In that config, the power (wattage) from the amp is being split 50% to the Eminence speaker, 25% to each of the Carvins.

[Mo'Phat]

I'm actually a fan of this idea. What a simple and effective way to allow your drummer and yourself to hear the bass. (unless, of course, your drummer is on the other side)

Whether it's 'scientifically logical' or 'good sounding' are up for debate, but it does kill two birds with one stone.

[PBFACTOR]

you can just flip it over and the 3rd speaker is on the other side. lol.

so far i like the way it sounds. it really didn't loose any low end to my ear. but, i've got 27 years of loud music through my ears though.

Originally Posted by Mo'Phat

I'm actually a fan of this idea. What a simple and effective way to allow your drummer and yourself to hear the bass. (unless, of course, your drummer is on the other side)

Whether it's 'scientifically logical' or 'good sounding' are up for debate, but it does kill two birds with one stone.

[Mo'Phat]

Originally Posted by PBFACTOR

you can just flip it over and the 3rd speaker is on the other side. lol.

so far i like the way it sounds. it really didn't loose any low end to my ear. but, i've got 27 years of loud music through my ears though.

Durr...I coulda used a V-8.

Don't mind me, hungover.

[BillyB_from_LZ]

PBFACTOR, please tell us about the midrange (?)...or the non-horn at any rate...

[PBFACTOR]

it's something like this one

http://www.parts-express.com/pe/show...number=299-279

i thought the power handling was a little higher. maybe 80/120. it's got the stock avatar crossover.

i had some old bose speakers with a billion little speakers in them. a few blew so i cannibalized them. i liked how the speakers sounded instead of tweeters.

the bose blew because they were only about 15w speakers. got some small 4" woofers to replace the bose.

Originally Posted by BillyB_from_LZ

PBFACTOR, please tell us about the midrange (?)...or the non-horn at any rate...

[PBFACTOR]

jammed with a guitar player and drummer on sunday, and i like my ghetto a** 3x10. it absolutely lost no low end, there's more. i don't know if it's because the ps10's it was loaded with before didn't have much grunt but putting the delta 10 in there really beefed it up. i was very surprised.

[christw]

Put a grille over that spare 10" for safety's sake!

[PBFACTOR]

i did. that's on of the first pics.

i was trying to make something more portable than my 6x10. it works well.

have to see how it sounds in a loud band setting.