Power needed for a 410 x 115 rig?

Anywhere from 1 watt up to the maximum rating assuming you use the volume controls wisely and don't blow your 15 before the 4x10 breaks a sweat.

(There is no such thing as a safe minimum amount of power)

 

My Epi Valve Jr. at 5 watts sounds good through my two 3015's

 

+1

Despite its popularity a 1x15 has no chance of keeping up with a 4x10. It really is a bad match. Do a search on the subject, there's a lot of information on this site.

 

To have some "safety" factor don't exceed twice the lowest rated cab's power input rating. If the lowest rated cab is 400 watts INPUT MAX don't exceed 800 watts FROM the amp's output. Or just use your ears to listen for speaker distress which CAN happen at power levels UNDER the cab's rating.

 

Thinking that a 1x15 puts out more lows is a fallacy. The size of the cone alone has nothing to do with the amount of lows a cabinet can give. A second identical 4x10 is a better way to go than adding a 1x15.

 

Just to fine tune the comment - the size of the speaker alone cannot be used to make a prediction. Known cabinets can be compared and in some cases one will appear to produce more lows than the other. Someone who tests this could in fact say that their 15 provides more lows. While factually accurate it may not be indicative of a well designed solution.

 

Your soundguy's parents being married when he was conceived often has little bearing on the results. The guys commenting on here for your benefit are of unknown pedigree but definitely know what is what.

 

For sound guys, their life gets easier when you blow up your rig by 'cranking lows', they get to DI you like they are doing you a favour.

 

Yes, 700W should be adequate for both of them. I find 350W to be good enough for me and my cabinets but speaker sensitivity varies.

 

The Eden 410xlt is available in 4 or 8 ohms. I can't see where you specified which one you have. If you have the 4 ohm version, hooking up both of those speakers would result in a total load that your GK amp probably can't handle.
I don 't know any GK amps that can handle a load less than 4 Ohm.

 

If you must use both at least stack the 1x15 on the top of the 4x10. This way you will be able to hear any signs of distress from the 1x15. On the bottom those signs will be drowned out by the much more efficient 4x10.

 

the 2000RB and 2001RB only

 

You can lead an equine to H2O...

 

The 15 putting out more lows than the 410 is probably an indictment of your 410.