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How may cabs to one head?


Sk1
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11 hours ago, Aliwobble said:

Valid point about the cool factor though. We could stack all those glorious cabinets up either side of the drummer and not even bother hooking them up. Just run straight to PA.

EF8F043F-C72B-4815-8D57-E7B171243EF0.jpeg

Just give me that EV 410. . . . . . . . . . and a bloke to carry it!

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22 hours ago, Bill Fitzmaurice said:

Not much. A line source drops 3dB per doubling of distance. To be a line source it must be at least three wavelengths high. That's easy at 5kHz, where a wavelength is around 7cm, not so much at 100Hz, where a wavelength is around 340cm.

Damn.

I need a bigger stack...

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Just get yourself a couple of these and you can run 8 8ohm cabs off of one 4ohm minimum head! 😁

Each pair of 8 ohm cabs in parallel will give you 4 pairs at 4 ohms each. 

Use each cab-merger to connect 2 pairs of cabs in series giving you 2 banks of 4 cabs each at 8 ohms total. 

Simple! 🙂

 

Screenshot_20200516_135034.jpg

Edited by Painy
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Question for @Bill Fitzmaurice (or anyone else that can work it out for me):

If I am using an all valve amp (so the watts will stay the same even if the impedance changes) and ignoring any variables that might come into the equation from mixing driver sizes - 

What would be the effect on volume (in terms of both dB and perceived volume) if I have one cab where the total speaker surface area is 1480 inches sq. and I then add a second cab which has a speaker surface area of 1180 inches sq? 

Edited by Painy
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1 hour ago, Painy said:

Question for @Bill Fitzmaurice (or anyone else that can work it out for me):

If I am using an all valve amp (so the watts will stay the same even if the impedance changes) and ignoring any variables that might come into the equation from mixing driver sizes - 

What would be the effect on volume (in terms of both dB and perceived volume) if I have one cab where the total speaker surface area is 1480 inches and I then add a second cab which has a speaker surface area of 1180 inches? 

it will get 1180 louder.

 

Glad I could help!

  • Haha 1
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2 hours ago, Painy said:

Question for @Bill Fitzmaurice (or anyone else that can work it out for me):

If I am using an all valve amp (so the watts will stay the same even if the impedance changes) and ignoring any variables that might come into the equation from mixing driver sizes - 

What would be the effect on volume (in terms of both dB and perceived volume) if I have one cab where the total speaker surface area is 1480 inches sq. and I then add a second cab which has a speaker surface area of 1180 inches sq? 

Insufficient data. Cone area is only one part of a complex equation.

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Just now, Bill Fitzmaurice said:

Insufficient data. Cone area is only one part of a complex equation.

Fair enough. I guess I'll just have to risk Mrs Painy's wrath by setting it all up in the house and trying it out! 😁

 

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