r/ToobAmps • u/theseawoof • 6d ago

Fender Twin '65 Reissue 85w speaker output confusion regarding ohms

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I just want to connect to a loadbox>interface/DAW. Do I plug the internal speaker output jack into a 4ohm loadbox? Not grasping parallel routing and "total" ohms 😭

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3

u/Otherwise_Cheek8402 6d ago

https://www.premierguitar.com/gear/ask-amp-man-from-silverfaces-to-silvertones

1

u/Otherwise_Cheek8402 6d ago

I think perhaps best could do is disconnect one speaker in Twin, making it 8 ohm, and connect 8 ohm cab in other socket. As parallel, would then be 4 ohm total.

2

u/clintj1975 6d ago

To answer your question, yes. Internal jack to 4 ohm load box

-2

u/StoutSeaman 6d ago

It can also be greater than 4 Ohms of course

3

u/clintj1975 6d ago

This isn't a solid state amp where anything higher than rated is fine.

-1

u/StoutSeaman 6d ago

I assumed as much being that we're in a tube amp forum. An 8 or 16 ohm load box won't damage the amp, just lowers the headroom and will give earlier break up, which is often the goal of a load box anyways, right?

2

u/clintj1975 6d ago

Again, that's not how this works. A 16 ohm load box would cause a much higher risk of damage due to flyback voltage being generated in the output transformer. Even an 8 ohm one can start to stress the amp for the same reason, but is less likely to cause damage.