Tremoverb head/speak cabinet impedance question/confusion

[Bleedback]

I feel like an idiot--plus I'm sure the answer is pretty obvious--but I have confused myself pretty well trying to match the correct 4x12 cabinet (Mesa Rectifier) impedance input with the correct Tremoverb head impedance output. I also checked out my Tremoverb manual to no avail. :lol:

Heres the available impedances inputs/outputs on each...

Tremoverb outputs: 2 - 4 ohm, 2 - 8 ohm, and 1 - 16 ohm.

Rectifier 4x12 inputs: 2 - 4 ohm (split for stereo/bi-amp), 1 - 8 ohm, and 1 - "out"

What impedeance output from the tremoverb matches with what impedance input of my rectifier 4x12 cabinet? Would I need to remove the cap covering the second 4 ohm input on my rectifier cabinet to hook up both 4 ohm outputs from my tremoverb head?

Thanks in advance!

 

[fluff191]

One end goes into the 8ohm output on your Verb, and then into the 8 ohms (bottom right hand corner) of your 4x12 cab.

Typically it is the metal jack and has no plug in it.

 

[Bleedback]

Even if I have 2 separate 8 ohm outputs on the tremoverb? Thats where I get confused--two 8-ohm outputs on the tremoverb with only 1 8 ohm input on the rectifier 4x12. I'm just worried about killin' the head from connecting it incorrectly.

Thanks for the help so far!

 

[fluff191]

Either 8ohm out will match your 8ohm cab.

The only time you would use both 8ohm outs is when hooking up 2 16ohm cabs, making the total load 8ohms.

Basically don't worry about the others if you are only hooking up one 8ohm Mesa cab. Its all good!

 

[Bleedback]

Got it!

Thanks!

 

[94Tremoverb]

Mesa amps are not actually very impedance-sensitive. You won't do any harm by mismatching, although you may wear out the tubes a bit faster with some combinations.

For reference:

1 16-ohm cab: 16-ohm jack
2 16-ohm cabs: both 8-ohm jacks
1 8-ohm cab: either 8-ohm jack
2 8-ohm cabs: both 4-ohm jacks
1 4-ohm cab: either 4-ohm jack

You can also mismatch cabs if you need to - this is commonly warned against as being "bad", but it's nonsense; the worst that will happen is a slight imbalance in volume between the two cabs.

1 16-ohm and 1 8-ohm cab: *either* both 8-ohm jacks (low mismatch but in the safe range), *or* both 4-ohm jacks (high mismatch but in the safe range), *or* run the 16-ohm cab from one 8-ohm jack and the 8-ohm cab from one 4-ohm jack (this gives equal power distribution but may not sound as good).

1 8-ohm and 1 4-ohm cab: both 4-ohm jacks (low mismatch but again safe).

It only really matters if you're cranking the amp, anyway - at lower volume the power section isn't working hard enough to do itself any harm even with a serious mismatch. Mesa actually recommends experimenting with different mismatches for different tones.