As per the Z Airbrake instruction manual. A ohm mismatch is recomended when using vintage amps. An example of a Vox AC30 set on the 8 ohm tap running through the Airbrake into a 16 ohm load was used. This is to prevent extra stress on the old transformers. Another example would be, 4 ohms on the amp into an 8 ohm cab while hooked to the airbrake.
So then, If this is good for vintage amps, it should also be fine with more modern amps without ill effects. Great for times when you have an 8 ohm head but only a 16ohm cab to use. Would anyone like to comment?
THE STUFF I'M HAPPY WITH:
James Tyler SEHD
Allen Amplification Accomplice
Vovox, van den Hul and Sommer cables
Area 51 wah
Goodrich volume pedal
Tone Tubby ceramic 12"
mid 60's Gibson J-45
J Design cab
I have read that it is O.K. to hook an amp up to a higher speaker ohm rating. For example 4ohm amp to 8 or 16 speakers, 8ohms to 16, ect. But you cannot go down, 8ohm amp to 4ohm cab. I dont remember were I read this, maybe the Weber site. I am going to look for it. I will put a new post up as soon as I find it!
There was a huge thread on the Airbrake and how it's not really "rated" for any ohmage... and how it functions & how the ohms, no matter what cab you use, CHANGE ANYWAY based on the level of attenuation. I'll see if I can find the link...
Post by cashandkerouac on Mar 1, 2008 18:33:35 GMT -7
i read the whole thread over on the gear page and am still confused. there did not seem to be a final conclusion about the issue. i have always set my amp to match the ohms of the cab, have used the Aibrake at all levels of attenuation, and never had a problem. i'd like to better understand the different schools of thought on this subject in order to make my own conclusion, but so far no problems just keeping the ohms on the amp set to match the cab.
I ran my head for a couple of months into a vintage Marshall 4X12 16ohm cab while I waited for my Z-Best (used the 8ohm tap BTW). I contacted the DR himself before I did it and he said no worries, so I didn't.
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The Bad Poodle Experience: well, Mike, it shouldn't have been the cause of a leak. double-check your work.
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GuitarZ: I updated in the Plumbing thread that the Moen website says that a faulty aerator can cause a handle/base leak. Eiyy! I really don't understand how plumbing works. I was ready to double check all connections. But, the leaking stopped with cleaned Aerator.
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