Taking the hf driver out of an EA CXL10 cab

[heymrbassman]

Hi

I use an iamp 350 combo and a CXL 10 cab (for louder gigs)
The amp has just blown, which is a different story, but it has made me think of doing a few things to get things a bit easier to carry and to introduce a backup plan.

1 - I don't use the HF drivers so can I take them out and expect the same fuctionality from the speakers?
2 - has anyone 'chopped' the top off an iamp 350 combo? I want to take the amp out then chop the useless hole off the cab to reduce weight.

many thanks

[bassdaddyfive]

Not a good idea on both issues. The speaker is built to work with a crossover network, removing the tweeter changes the circuit the speaker operates on. Chopping the top off the combo will change the strengh of the cab. Time to look at new equipment IMO.

[heymrbassman]

I like the EA system I have but I just want to make it a bit more portable. I guess no-one would buy an iamp 350 combo these days anyway, not for a decent price anyway

Are you sure the speaker wouldn't work? I don't use the HF driver so how could it be that different? Would the impedance change?

Thanks for the advice though, I won't be making any drastic changes just yet

[Bergerman]

I just went through this on a Bag End cab. According to the guys at my local speaker/re-cone shop, you can simply unscrew the HF driver (if it is the kind that screws onto the back of the woofer) and go without. The tweeter portion apparently does not have much effect on the overall impedence, from what I understand.

The important part is that if you remove the HF from the magnet assemble, you must plug the hole on the magnet with something. The voice coil is vented through the dust cap on this type of speaker, and leaving the back open as well does not do the VC any good...leads to early VC failure, from what I was told. Plug the back and you are good to go.

[Ric Vice]

Originally Posted by heymrbassman

Hi

I use an iamp 350 combo and a CXL 10 cab (for louder gigs)
The amp has just blown, which is a different story, but it has made me think of doing a few things to get things a bit easier to carry and to introduce a backup plan.

1 - I don't use the HF drivers so can I take them out and expect the same fuctionality from the speakers?
2 - has anyone 'chopped' the top off an iamp 350 combo? I want to take the amp out then chop the useless hole off the cab to reduce weight.

many thanks

EA cabinets are very different on the inside since they use a transmission line ( similar to the Bose Wave Radio) inside the cabinet. If you change the structural integrity of that cabinet in any way, it could spell trouble. Before you do anything, I'd email John Dong at EA and tell him what you propose to do, at least that's what I would do. Once I pulled the head out of a SWR Baby Blue (2X8's and a Tweeter) but that was much simpler.

[paganjack]

Dunno about chopping the cabinet off, but if you rewire the cabinet such that the input jack feeds straight into the woofers (thus bypassing the tweeter) you should be fine. As I understand it, stuff that comes off of a crossover circuit really doesn't affect the overall impedance. I have done this with some of my cabs and never had a problem. I don't know how the EA is set up internally, but I think you'd be OK.

[Rvl]

I took out the amp out of my EA combo
I replaced it with a box and that holds my cables,tuners and misc

Dont think it would save much weight cutting the top off but it would definitely make the cabinet weaker structurally

Thanks

Robert VanLane

[robgrow]

I've owned a couple of EA CxL-110's. They're nice cabs.

Although you can remove the HF driver from the woofer (which will work just fine by itself since it is connected directly to the input and not to the crossover network), the HF driver doesn't weigh all that much compared to the large (heavy) ferrite magnet on the CxL-110's woofer. So you're not going to lighten the cab up appreciably, by doing this.