8 ohm amp head

1. Can I use a 16 ohm cab with an 8 ohm head?
2. Can I run a 4 ohm head into an 8 ohm cab?
3. Can I put a 16 ohm speaker to 8 ohm amp?
4. Is 4ohm or 8ohm better?

Can I use a 16 ohm cab with an 8 ohm head?

Case 1: running a 16 ohm speaker with an 8 ohm amp output

With this combination, the voltage at the speaker output will rise, while the current will almost halve. The power will drop, although you probably won't notice it too much, as this combination will likely increase the mids in your tone.

Can I run a 4 ohm head into an 8 ohm cab?

You can not go from an 8 ohm cab to a 4 ohm cab it will fry the OPtransformer. Tube amps must match ohms or you will run the risk of ruining it. Remember you can only mis match ohms with ss not tubes, and you can not go lower than the ohms of the amp. Yes, TS it should be fine.

Can I put a 16 ohm speaker to 8 ohm amp?

If you connect a 16 ohm speaker to your 8 ohm output transformer the impedance as seen by the power tube plate increases and plate current decreases which can lengthen the lifespan of your power tubes, especially in Class A amps.

Is 4ohm or 8ohm better?

8 Ohm. A 4-ohm speaker requires more power from an amplifier than an 8-ohm speaker to produce the same loudness of sound. This is due to the relationship between voltage, current and resistance in electronic circuits; for a given voltage, a lower impedance means a greater current.