Avatar cab specs for 100w head? (tech question)

[Farview]

I thought we was talking about tube head...
I think you are misinterpriting what I posted
I am not suggesting using an 8 OHM cab and using it in a 16 OHM out
either you are misunderstanding me or I am misunderstanding you

He is talking about a tube head. But, because it is a tube head, he won't get more power by using a 4 ohm cabinet over an 8 ohm cabinet. IF it were a solid state amp, he would.


The output transformer 'matches' (simplistic explanation) the output impedance with the cabinet impedance. As long as you are connected to the appropriate tap on the transformer, You will be getting the maximum amount of power that the amp can deliver.

 

[Roguetitan]

He is talking about a tube head. But, because it is a tube head, he won't get more power by using a 4 ohm cabinet over an 8 ohm cabinet. IF it were a solid state amp, he would.


The output transformer 'matches' (simplistic explanation) the output impedance with the cabinet impedance. As long as you are connected to the appropriate tap on the transformer, You will be getting the maximum amount of power that the amp can deliver.

so whether it is 16 OHM cab or a 4 ohm cab the heads output is still 100 watts?
so is the head under less of a load using a 16 OHM cab opposed to using a 4 ohm cab
or is it under the same load regardless?

and if so why cant I use a 2 OHM load cab if the head is under no more of a load with a 4 OHM cab than it is using a 16 OHM cab?

 

[Farview]

so whether it is 16 OHM cab or a 4 ohm cab the heads output is still 100 watts?

Yes

so is the head under less of a load using a 16 OHM cab opposed to using a 4 ohm cab
or is it under the same load regardless?

It is under the same load as long as you have the impedance switch set correctly. The output impedance of the head is a function of the output tubes. The output transformer will change the impedance that the cabinet sees depending on which tap of the transformer you hook the cabinet to. As long as you match the cabinet to the right tap, the load stays the same.

and if so why cant I use a 2 OHM load cab if the head is under no more of a load with a 4 OHM cab than it is using a 16 OHM cab?

Partially because there is no 2 ohm selection on the impedance switch. It would take twice as many windings to make a transformer that would let you go down to 2 ohms, making the transformer twice as big, twice as heavy, and twice as expensive. (it would also not get you any more power, so there is no point)

 

[Roguetitan]

Partially because there is no 2 ohm selection on the impedance switch. It would take twice as many windings to make a transformer that would let you go down to 2 ohms, making the transformer twice as big, twice as heavy, and twice as expensive. (it would also not get you any more power, so there is no point)

well ya I know there is no 2 OHM selection but what you are saying about the size of transformer makes sense to me
but I always thought Lower impedance caused more compression on the tubes as well.

 

[Farview]

well ya I know there is no 2 OHM selection but what you are saying about the size of transformer makes sense to me
but I always thought Lower impedance caused more compression on the tubes as well.

Nope. That got started in the old days when most people lowered the impedance by adding another cabinet. There was more volume because there were twice as many speakers, there was more compression for the same reason.

 

[Roguetitan]

Nope. That got started in the old days when most people lowered the impedance by adding another cabinet. There was more volume because there were twice as many speakers, there was more compression for the same reason.

I realize more speakers makes more power so that is making sense.

Thanks.

 

[Outlaws]

I would like to point out that almost all the famous (and the quality boutique) amp manufacturers make and sell 16ohm cabs rather than 8ohm or 4ohm.

As far as I am concerned, the only reason heads even offer 4 or 8 is to cater to those who use a full stack.

 

[toobalicious]

tell that to fender, lol.
a

 

[Roguetitan]

I would like to point out that almost all the famous (and the quality boutique) amp manufacturers make and sell 16ohm cabs rather than 8ohm or 4ohm.

As far as I am concerned, the only reason heads even offer 4 or 8 is to cater to those who use a full stack.

Me personally...
I would not want a Head that I could only use a 16 OHM load Cab.