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Author Topic: speaker question  (Read 609 times)

Offline floaded27

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speaker question
« on: April 03, 2009, 10:23:45 AM »
Im putting together a travel rig to pair with my GK mb2500 head. I purchased a pair of Kustom PA cabinets for $80 bucks each which are like 150W. i think. I also bought a pair of Eminence Delta 12s to replace those weak drivers. At 400W each, now i would have a 1x12 option to take with me to smaller churches and for bigger ones i can take both to have a 2x12 rig, which is not too much bigger than my avatar 4x10, but i think the fact that they can be separated would help a great deal in portability.

long story short, since im replacing the included driver with a new one that has a greater power rating, do i have to worry about changing the crossover as well, or is that not an issue?
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Offline 6stringapprentice

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Re: speaker question
« Reply #1 on: April 03, 2009, 12:25:17 PM »
It kind of depends on the crossover. If the cab just has a high pass filter for the tweeter then the impedance of the driver wont matter but if it has a true crossover you will have to make sure the new driver impedance or ohms match the driver the came out of it. You can usually tell if the driver is just hooked up pos neg to the jack. If there are any components capacitors or inductors ahead of the driver then it has a true crossover.
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Offline floaded27

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Re: speaker question
« Reply #2 on: April 03, 2009, 01:37:26 PM »
It kind of depends on the crossover. If the cab just has a high pass filter for the tweeter then the impedance of the driver wont matter but if it has a true crossover you will have to make sure the new driver impedance or ohms match the driver the came out of it. You can usually tell if the driver is just hooked up pos neg to the jack. If there are any components capacitors or inductors ahead of the driver then it has a true crossover.

ok, the descriptions dont give any info on that (i guess they figure people wont know what the heck they talkin about anyway), so i'll find that out when i open it up when i get off work today. thanks.
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Offline 6stringapprentice

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Re: speaker question
« Reply #3 on: April 03, 2009, 02:38:26 PM »
If it does turn out you have a low pass section, though I doubt it would be more than 1st or 2nd order, you might have to get a lower gauge inductor and higher voltage cap to handle the extra watts. In that case it might be easier to just replace the crossover.
Sounding Mathematics.
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