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Discussion in 'The Squawk Box' started by JakeM, Feb 19, 2011.
Both V30's in the Lopo are 8Ω and its pre wired from lopo
Ok, please tell me how this should be. I have 2 4x12's that read 8 ohms. On my amp (Bugera 333xl) there are 2 speaker inputs. There is one selector switch. This switch goes: 4, 8 , 16. If I were to plug both of these cabs in, what would I select on the switch?
Probably 4. The two jacks are most likely wired in parallel. The manual or schematic should tell you this. Two 8ohm cabs in a parallel config gives the amp a 4ohm load.
Is there not a for sure answer man? I don't wanna fry my amp.
Bugera 333XL user manual page 6 (item 30)
"Both the paralleled loudspeaker outputs (1/4 inch mono jacks) are used to connect the speaker cabinets..."
Set it at 4ohm for both 8ohm for one
Thanks dude! You didn't have to look it up for me. Thanks anyway. I seriously appreciate it!
Thanks for that papa squash, I missed that. At this stage this sticky is as much yours as mine haha
I'm nobody's expert - I'm just trying to learn and sometimes a bit leaks out.
Same as myself mate
Ok i have a question. My current rig is a 25 watt phaez amp 25 watts. And I have a 200 watt scumback cabinet I am using is there a problem with this setup? I read both pro and con about under powering speakers. What are your alls thoughts?
Are you talking about the Rooster? Mine is 50 watts with 2 EL34's.
Mines 25 with two 6v6
Ha! Well I guess you can disregard my response to your PM about the tubes then.
As far as the speaker cabinet goes you shouldn't have any problems with the wattage, especially if you like the tone you're getting. You will probably have a hard time driving the speaker to the break up point though.
Yeah thats what I thought.
I have 4 four ohm speakers that I intend to put in a cab. Is there anyway I can have them in a 4x12 and have one input for 4ohms and another for 16ohms? I will take abstract wirings too.
SGguy, the third diagram on the first page with the 4 speaker wiring will allow you to have all four speakers at 4 ohms but I'm unsure how to get it to 16ohm from there...
I think what i should ask is: how can I make a 4x12 cab with four 4ohm speakers switchable from series/parallel to series? so i can switch them back and forth or have 2 different inputs.
EDIT: Never mind my question, I solved my cabinet issues.
can you upload a pic when you wire it all up??
I'm not actually wiring anything. I found out the 8ohm cab i have can be used with the amp i'm getting, so i don't have to rewire some spare 4 ohm speakers in it.
I'd appreciate your opinions on the topic of total impedance, which has been touched upon previously in this thread. I'm surprised this is just hitting me now, but then I'm not really the "electronic" type: I have an early '80s Legend Super Lead head driving two 2x12 cabs. The head is a hybrid: tube preamp section and SS power section. All speakers are rated 8 ohms. There are two inputs for cabs and the literature states "minimum load- 4 ohms". Speakers in both cabs are wired parallel.
So each cab has a 4 ohm load. But if the speaker inputs are in parallel, does the minimum load using both remain at 4 ohms or does it go to 2 ohms? Would I be safer rewiring the cabs for series?
thanks in advance for your help.