Eden Nemesis crossover hookup question

[tim]

HI there...customer drops off an Eden Nemesis NC200B. He had pulled out the Xover (not sure why) and doesn't know how it gets hooked up...neither do I and it seems, neither does Eden. Attached are two pics of the crossover, the drawing they sent me and a picture of the inside of the cab. can any one give me any ideas how this is hooked up...Eden has the full power out of their amp (+ input) going right into the tweeter fuse according to their drawing...that can't be right.

Any help would be appreciated...something just isn't adding up between what I see on the actual crossover and the drawing that they insist is the right one. Maybe, on the other hand, it's a brain fart on my part...
Thanks all

[Enzo]

Doesn;t matter which side the fuse is on. You can fuse the hot side or the cold side.

And is that an actual fuse, or is it a light bulb? Light bulbs make good current limiters. The more current through them the hotter they get and their resistance climbs. Put that in series with a tweeter to protect it.

[tim]

Hi Enzo,
I surmise it's a lightbulb type fuse. The thing is that Eden's drawing shows the + input (200 watts) going INTO the bulb/fuse...I drew it out and attached the drawing so you could see what they are trying to do...maybe you can make sense out of things...

[Enzo]

So? Look at your latest drawing. I'd imagine the top two as in from the amp and the bottom two as to the driver. or the other way around, amp in the bottom two and driver from top two, doesn;t matter. So now you have a inductor/cap/resistor in series with one lead and a bulb in the other. They could just as easily have put the bulb over with everything else, but that would have meant a more involved pc board. it doesn't matter where the fusebulb is. It is in series with the circuit. the whole thing is one large series circuit. Current is the same throughout a series circuit.

This is no different from deciding which wire of the power cord you fuse. Either one will protect the circuit. Only reason it would matter there is we have 120VAC that could be on a chassis.

[Enzo]

Ask yourself this: if you had just a speaker with two wires running back to the amp, would it matter which wire you put a fuse in?

[cbarrow7625]

Enzo is right. First, that is a current limiting bulb for protection of the HF driver. The schematic you show looks perfectly normal. It is just a series bandpass circuit. I suspect the roll off the highs a little in the HF so that it doesn't sound so harsh with a bass guitar.

Enzo is also correct that since it is just a series circuit it doesn't matter which components are connected to + or -. They are all in series, they can be in whatever order is easiest to manufacture.

[tim]

Got it figured out...I kept thinking parallel, not series...once I got the series thing in my thick skull, everything fell into place....God, I can be such a dunce sometimes.

Thanks all for your help. It is really appreciated!