HELP running multiple cabs - OHMS ???
- Thread starter OlinMusic
- Start date
STRATDELUXER97
Stratoblaster Tone Meister
Re: HELP running multiple cabs - OHMS ???
Unless your amp is designed to run at 4 ohms..You need to run 2 seperate cabs rated for 8 ohms each...
OlinMusic said:
Unless your amp is designed to run at 4 ohms..You need to run 2 seperate cabs rated for 8 ohms each...
drew_half_empty
Looking for Real Life
Re: HELP running multiple cabs - OHMS ???
the guy at avatar told me a way you could daisy chain cabs so it doubles the impedance instead of cutting it in half
can't remember exactly what it was, might shoot him an e-mail
the guy at avatar told me a way you could daisy chain cabs so it doubles the impedance instead of cutting it in half
can't remember exactly what it was, might shoot him an e-mail
Re: HELP running multiple cabs - OHMS ???
ok so here is the debate
bc I thought when you add cabs you split the load in half
you want to have identical ohms (all speakers of the same impedance), then you cut the ohms in half as you add a second cab
so 2 - 16's becomes 8 each
2 8's become 4 each
If I'm wrong do let me know
ok so here is the debate
bc I thought when you add cabs you split the load in half
you want to have identical ohms (all speakers of the same impedance), then you cut the ohms in half as you add a second cab
so 2 - 16's becomes 8 each
2 8's become 4 each
If I'm wrong do let me know
missionamps
New member
Re: HELP running multiple cabs - OHMS ???
You can use two 8 hom cabinets but you will have to run the two 8 ohm cabinet's speaker loads in series and then plug the cabinets (as a lump 16 ohm load), with one speaker cable, into the 16 ohm tap.
What amp is it?
You can use two 8 hom cabinets but you will have to run the two 8 ohm cabinet's speaker loads in series and then plug the cabinets (as a lump 16 ohm load), with one speaker cable, into the 16 ohm tap.
What amp is it?
Re: HELP running multiple cabs - OHMS ???
Ahhhhhhhh ah ha
that makes sense
NOW WHERE TO GET THIS CABLE?
The amp in question is a SHIVA
and to those who have written here or in the past - NO YOU CANNOT MISMATCH SPEAKER IMPEDANCE TYPES and NO, I DO NOT THINK YOU CAN USE TWO 8ohm CABs out of the 2 8ohm outs.
Ahhhhhhhh ah ha
that makes sense
NOW WHERE TO GET THIS CABLE?
The amp in question is a SHIVA
and to those who have written here or in the past - NO YOU CANNOT MISMATCH SPEAKER IMPEDANCE TYPES and NO, I DO NOT THINK YOU CAN USE TWO 8ohm CABs out of the 2 8ohm outs.
ErikH
Well-known member
Re: HELP running multiple cabs - OHMS ???
I found this on the Bogner website in the manual.
NOTE for older Shivas made prior to 12/1/05: If you put the amp in play make sure you have a load or speaker cabinet hooked up, otherwise you could damage the output transformer and the power tubes. This older Shiva does not have an ohm selector, it has 3 speaker output jacks each labeled with an oval containing 2 numbers in it. One of the numbers in each oval is marked out with a black marker, so only the other number is important to you! If you hook up only one cabinet, the impedance (ohm value) of amp and cabinet should match: 4 into 4, 8 into 8 or 16 into 16. If you hook up two cabinets (they must have the same impedance, same ohm value). The total ohm value is half the value of one cabinet since they run parallel now: so two 16 ohm cabs plug into the two 8 ohm jacks, two 8 ohm cabs plug into the two 4 ohm jacks if your amp is wired with two 4 ohm speaker outputs of course, see the following for more details: The EL 34 Model has one 16 and two 8 ohm speaker outputs (the transformer has an internal 4 ohm tap also, so the outputs could be wired to 8 4 4 or 16 8 4 ohms if you wanted your amp customized)
NOTE for 6L6 Shiva's made June 2002 and newer are wired with one 16 and two 8 ohm speaker outputs, just like the EL34 models. Shiva 6L6 models made before June 2002 approx. do not have a 16 ohm tap. The older 6L6 Model have one 8 and two 4 ohm speaker outputs (the transformer has an internal 2 ohm tap also, so outputs could be wired to 4 2 2 or 8 4 2 ohms if you wanted your amp customized) Keep that in mind because most of the 4x12" cabinets are 16 ohms.
In other words, you need two 16 ohm cabs to use both 8 ohm jacks or what Bruce said. I have no idea where you get such a cable though.
I found this on the Bogner website in the manual.
NOTE for older Shivas made prior to 12/1/05: If you put the amp in play make sure you have a load or speaker cabinet hooked up, otherwise you could damage the output transformer and the power tubes. This older Shiva does not have an ohm selector, it has 3 speaker output jacks each labeled with an oval containing 2 numbers in it. One of the numbers in each oval is marked out with a black marker, so only the other number is important to you! If you hook up only one cabinet, the impedance (ohm value) of amp and cabinet should match: 4 into 4, 8 into 8 or 16 into 16. If you hook up two cabinets (they must have the same impedance, same ohm value). The total ohm value is half the value of one cabinet since they run parallel now: so two 16 ohm cabs plug into the two 8 ohm jacks, two 8 ohm cabs plug into the two 4 ohm jacks if your amp is wired with two 4 ohm speaker outputs of course, see the following for more details: The EL 34 Model has one 16 and two 8 ohm speaker outputs (the transformer has an internal 4 ohm tap also, so the outputs could be wired to 8 4 4 or 16 8 4 ohms if you wanted your amp customized)
NOTE for 6L6 Shiva's made June 2002 and newer are wired with one 16 and two 8 ohm speaker outputs, just like the EL34 models. Shiva 6L6 models made before June 2002 approx. do not have a 16 ohm tap. The older 6L6 Model have one 8 and two 4 ohm speaker outputs (the transformer has an internal 2 ohm tap also, so outputs could be wired to 4 2 2 or 8 4 2 ohms if you wanted your amp customized) Keep that in mind because most of the 4x12" cabinets are 16 ohms.
In other words, you need two 16 ohm cabs to use both 8 ohm jacks or what Bruce said. I have no idea where you get such a cable though.
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