Can I get away with using a 100w head into a 90w cab?

[Salos]

If I have the MV never further than 2/3 o'clock, am I OK? Or is this a bad idea?

I'm sick of lugging my 4x12 around - and I want a V30/H30 (70th anniv.) in a 2x12. I'm not sure, but I also think one of the V30 variations is 65w or 70w? Don't recall which though.

 

[cardinal]

You run a 100 watt head at 2-3 o'clock? Wow that must be loud as hell.

If you really are running the head that high, it probably is putting out close to or maybe even more than 100 watts to the speakers.

And the H30 only is a 30 watt speaker. So feeding that cab anything over 60 watts exceeds that speaker's rating. The V30 would be safe beyond that, but the H30 is soaking up half the incoming power.

 

[CrazyNutz]

+1
That would be a 60w cab with v30/h30. You'll have to go all v30. Or do creambacks

 

[Salos]

You run a 100 watt head at 2-3 o'clock? Wow that must be loud as hell.

If you really are running the head that high, it probably is putting out close to or maybe even more than 100 watts to the speakers.

And the H30 only is a 30 watt speaker. So feeding that cab anything over 60 watts exceeds that speaker's rating. The V30 would be safe beyond that, but the H30 is soaking up half the incoming power.

There's quite a bit of clipping going on when I'm running the MV that high - not sure if that affects the output?

Interesting, I thought you could just add speaker wattages in a cab together, and the total is what matters since everything is wired up together (this sounds wrong as I type it ). Guess not!

So if I'm interpreting this correctly, I need to do 2xV30 OR two speakers that are at least 50 watts each, not just 100 watts added together (like a 60w + 40w for example) because the power is being split evenly by X amount of speakers in cab?

 

[CrazyNutz]

So if I'm interpreting this correctly, I need to do 2xV30 OR two speakers that are at least 50 watts each, not just 100 watts added together (like a 60w + 40w for example) because the power is being split evenly by X amount of speakers in cab?

Yes. Cab wattage is the wattage rating of lowest rated speaker X number of speakers.

v30, v30, v30, GB = 100w
GB, GB, GB, v30 = 100w
v30, v30, v30, v30 = 240w

 

[Salos]

So if I'm interpreting this correctly, I need to do 2xV30 OR two speakers that are at least 50 watts each, not just 100 watts added together (like a 60w + 40w for example) because the power is being split evenly by X amount of speakers in cab?

Yes. Cab wattage is the wattage rating of lowest rated speaker X number of speakers.

v30, v30, v30, GB = 100w
GB, GB, GB, v30 = 100w
v30, v30, v30, v30 = 240w

Thanks. Just when you think you know the basics...

LOL

 

[Ventura]

So if I'm interpreting this correctly, I need to do 2xV30 OR two speakers that are at least 50 watts each, not just 100 watts added together (like a 60w + 40w for example) because the power is being split evenly by X amount of speakers in cab?

Yes. Cab wattage is the wattage rating of lowest rated speaker X number of speakers.

v30, v30, v30, GB = 100w
GB, GB, GB, v30 = 100w
v30, v30, v30, v30 = 240w

Thanks. Just when you think you know the basics...

LOL

Always go with the weakest link of the chain - there are some ingenious wiring methods that can isolate the black sheep within the quad of speakers, but this too comes with its inherent worries and such.