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Unread 05-31-2011, 07:36 AM   #1 (permalink)
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Passive Crossover for Speaker Cabinet

How will a Marshall tube amp (or others) react to a passive crossover being installed at speaker level?

Thinking I could build a couple different ones to recreate the EQ curve of different speakers


say I have V30s and want to mimic the EQ of a Greenback or 75

Ive built many for audio use and have all the parts...just curious how a guitar amp would respond

Anyone know the EQ differences between a V30 and a Greenback

I know breakup and other factors cant be mimiced...but the overall eq is what Im after

thanks
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Unread 05-31-2011, 05:15 PM   #2 (permalink)
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Re: Passive Crossover for Speaker Cabinet

I guess I should rephrase the question

How would a tube amp respond to a speaker load that had a cap or choke in its path?

Would it be fine or cause damage?

Tube amps are used in audio apps all the time, with crossover networks to seperate freqs

I would basically be creating a notch filter or two to change the response of the output
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Unread 05-31-2011, 05:18 PM   #3 (permalink)
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Re: Passive Crossover for Speaker Cabinet

"They" say that a V30 has a mid spike that is annoying, or the 75 has a dipped midrange

Well what if you had a switchable speaker level box that changed the eq curve to mimic these different speakers

would it work or fail
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Unread 05-31-2011, 06:52 PM   #4 (permalink)
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Re: Passive Crossover for Speaker Cabinet

I have no answer to your question, but it sounds like an interesting idea!
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Unread 06-01-2011, 09:45 AM   #5 (permalink)
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Re: Passive Crossover for Speaker Cabinet

Maybe if you started with a G12K100 or something more neutral?
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Unread 06-03-2011, 08:25 AM   #6 (permalink)
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Re: Passive Crossover for Speaker Cabinet

first off- passive crossovers/filters suck up alot of power, therefore, changing your over all tone-
I would think putting a 8/10 band graphic eq somewhere in line or in your loop would be a more workable solution.
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