2 outputs on my marshall avt50 head.....total impeadance is 4 ohms. can i connect 2 seperate 2x12 cabs rated @ 4 ohms each? i want to get maximum power but want 2x 12 option for either side of stage.
SOURCE: 4 x12 slant cab grill is ripped its a '' MARSHALL''
From behind the amp there shouls only be a couple os screws that hold that fron panel on, once removed you can take it off to work on it, you can get the same material from a good music store or even some type of fabric store or craft store.
SOURCE: what ohams input do i use. i got a 4/12 cab with
If you put four 16 ohm speakers in parallel on your amp you should set it to 4 ohm. You calculate that as 16 ohm/4 = 4 ohms because they are in parallel.
When you put speakers in series then you add the impedance of each. You can ONLY series speakers if they are identical AND in identical cabinets.
Testimonial: "thanks for your help. this was what i was looking for. very helpful indeed."
SOURCE: Hi, I have a Marshall 8240. The Reverb output
probably the reverb tank These coils are very thin and tent to break easily
SOURCE: Marshall Lead 100 Mosfet head, no sound.
For me when I couldn't get a sound a put a a regular cable or 1/4 Mono to 1/8 Adapter in the back where it says "Return" but not all the way about half way through. Make sure your cables are plugged in and are no high volumes while you do this because you want to be strumming as you pull in and out of the Return jack.
In case it isn't the Return Jack try it on the Output or Send.
One of these might be oxididate like my Return was.
SOURCE: If I'am powering 2 Peavey
You CANNOT power 4 total 4 ohm speakers from this unit without special configuration. The lowest you can go is 4 ohms per side, which would be one 4 ohm cabinet per side. You would have to do a series parallel arrangement with the resources you have... two Peavey's in series and that combination in parallel with two 15's in series...
This is a VERY unsafe configuration with this mixer. ALSO please read my tip on here in regard to PMP mixer grounding hazard of the A channel when using Speakon to 1/4 inch cables.
Frankly, forget about maximum performance unless you want to risk blowing your mixer...
If I were you, I would put the two 15's in SERIES as 8 ohms on one of the channels and the Peavey's in SERIES as 8 ohms on the other channel.
You would be well to heed this warning as I have repaired a bunch of these units. Be careful of any poor speaker connections as there is an insulation breakdown problem in the power amp circuit board if a speaker becomes intermittent. If something fails DO NOT replace the pwer fuse as you will do more damage.
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