16 ohm cab with Simul-Class 2:90

[dschaaf]

Hi,

I just picked up a used Stereo Simul-Class 2:90 and am wanting to output to a 16ohm 2x12 cab that I have. I am only imputing to channel "A" from my preamp and am wondering if connecting to the "A" output on the 8ohm is ok?

Thanks,
Derek

 

[elvis]

Yes, it will be fine. Make sure the unused channel is set to zero gain and MAX presence.

 

[dschaaf]

perfect...thanks

D.

 

[Boris]

It says that it's ok to do so in the 2:90 manual but when I hooked up my 16ohm orange 2x12 this way it was blowing up the fuse everytime after about 1hour of playing (even at low volumes) i had to rewire the 16ohm cab to become 4ohm (simple reconnection of cables) ...ever since than it worked fine...

 

[elvis]

That amp should be fine at 4, 8 or 16 Ohms. It's possible that you had a short in the wiring in the cab to start with.

 

[Jackie]

I also disconnect any input to the channel I'm not using if I have it wired on Mono.

 

[dschaaf]

UPDATE: Ok, so now I am using (2) 2x12's both are 16ohm cabs and running A & B in stereo and connected to the 8 ohm output. It seems to work great but is there any reason to be cautious or is this fine?

Thanks,
Derek

 

[Triaxstasy]

That´s totally ok and called a "Safe Mismatch"....
Check this thread for further info: http://forum.grailtone.com/viewtopic.php?f=5&t=58141

 

[dschaaf]

awesome...thanks!

 

[dschaaf]

Hi Triaxstasy,

I was just re-reading my post and wanting to make sure that I had worded it correctly...sorry for the redundancy...just want to make absolutely sure I'm good to go

Simul-Class 2:90-------Channel A-------8 ohm output-------->16 ohm 2x12 cab

Simul-Class 2:90-------Channel B-------8 ohm output-------->16 ohm 2x12 cab


Thanks,
D.

 

[Jackie]

Yes, that is a safe mismatch. No reason to worry :wink:

 

[dschaaf]

perfect....thanks!

d.