How will I know??
- Thread starter BloodRose
- Start date
L
Little Pigbacon
Guest
L
Little Pigbacon
Guest
Re: How will I know??
Also this:
If the impedance of the cabinet is twice that of one of the speakers, they are in series.
If the impedance of the cabinet is half that of one of the speakers, they are in parallel.
Also this:
If the impedance of the cabinet is twice that of one of the speakers, they are in series.
If the impedance of the cabinet is half that of one of the speakers, they are in parallel.
PFDarkside
of the Forum
Re: How will I know??
Take a pic and post it.
Also, it should be quite obvious when you look.
Take a pic and post it.
Also, it should be quite obvious when you look.
devastone
Well-known member
Re: How will I know??
Is it an 8 ohm or 16 ohm cab? If it is an 8 ohm, it is probably 2 - 16 ohm speakers in parallel, if it is 16 ohm, it is probably 2 - 8 ohm speakers in series. But again, best to look.
An 8 ohm could be 2 - 4 ohm speakers in series, but 4 ohm guitar speakers aren't used as much as 8 or 16.
Is it an 8 ohm or 16 ohm cab? If it is an 8 ohm, it is probably 2 - 16 ohm speakers in parallel, if it is 16 ohm, it is probably 2 - 8 ohm speakers in series. But again, best to look.
An 8 ohm could be 2 - 4 ohm speakers in series, but 4 ohm guitar speakers aren't used as much as 8 or 16.
Re: How will I know??
Cab is 8 OHM. cracked it open today and both the speakers are Celestion G12T-75s in it. both rated 16OHM. The wiring is diff than either of the diagrams above. there are no wires from speaker to speaker. The cab has 2 inputs. There are small wires that go from input to input and then a long wire that goes from one input to one speaker and another that goes from the other input to the other speaker. So, it almost looks like each input drives one speaker, except for the small wires that connect the inputs
Cab is 8 OHM. cracked it open today and both the speakers are Celestion G12T-75s in it. both rated 16OHM. The wiring is diff than either of the diagrams above. there are no wires from speaker to speaker. The cab has 2 inputs. There are small wires that go from input to input and then a long wire that goes from one input to one speaker and another that goes from the other input to the other speaker. So, it almost looks like each input drives one speaker, except for the small wires that connect the inputs
L
Little Pigbacon
Guest
Re: How will I know??
Is one of the inputs marked "Mono"?
Is one of the inputs marked "Mono"?
skyydogg01
Active member
Re: How will I know??
Parallel ... And both jacks are parallel also. If you Daisy chain another 8 ohm cab, it'll be 4 ohm total load.
Parallel ... And both jacks are parallel also. If you Daisy chain another 8 ohm cab, it'll be 4 ohm total load.
skyydogg01
Active member
Re: How will I know??
... And, If you snip the wires between the 2 jacks, you'll have a stereo cab with 2x16 Ohm connections. That was the intention of wiring it in such a way. One snip and you have a stereo cab.
... And, If you snip the wires between the 2 jacks, you'll have a stereo cab with 2x16 Ohm connections. That was the intention of wiring it in such a way. One snip and you have a stereo cab.
Re: How will I know??
oh, ok.. Im still pretty noob at speakers/speaker loads and such. Cant see where Id want to split em and run separate unless I was playing with someone else and we were going to share my cab. Or is there some cool benefit Im missing? Not to nit pick, but for the record, Id have to snip 2 wires. There are 2 wires from jack to jack. one on each side of the jacks.
hmmm.. just thought of something cool. If I have a pedal, like say a chorus with dual outs, I could run one to each speaker, couldnt I? awesome...
oh, ok.. Im still pretty noob at speakers/speaker loads and such. Cant see where Id want to split em and run separate unless I was playing with someone else and we were going to share my cab. Or is there some cool benefit Im missing? Not to nit pick, but for the record, Id have to snip 2 wires. There are 2 wires from jack to jack. one on each side of the jacks.
hmmm.. just thought of something cool. If I have a pedal, like say a chorus with dual outs, I could run one to each speaker, couldnt I? awesome...
DrNewcenstein
He Did the Monster Mash
Re: How will I know??
Two wires join the jacks, not one. If he only has to snip one wire, which one? The Blue one with the Yellow stripe or the Yellow one with the Blue stripe?
Two wires join the jacks, not one. If he only has to snip one wire, which one? The Blue one with the Yellow stripe or the Yellow one with the Blue stripe?
devastone
Well-known member
Re: How will I know??
Probably want to snip the + wire, if you were using a stereo power amp or even if you are using 2 separate amps, -/gnd sides are probably all tied together or connect together through AC chassis ground. Safest just to cut both. FWIW, the + wire is the one connected to the tip.
BR, yeah, that is the idea, running stereo requires 2 separate circuits, but you'll need 2 power amps, or a stereo power amp to do it, a pedal won't cut it, and if you hook the speaker out to the pedal in, there will probably be smoke coming from the pedal shortly. IMHO, running stereo from one cab, especially a 2 - 12 cab, doesn't really do much because there is no real separation. At one point many moons ago, I had a stereo rig with two 2-12 Avatar cabinets that sounded amazing, but when you got to clubs they were usually running mono anyway.
This is a side track from your original question, your speakers are in parallel. Basically if 2 speakers are in series you add their impedance together, R1 + R2 + R... = Rtotal
If they are in parallel the total is the reciprocal of the total of the reciprocals of the individual impedances or Rtotal = 1/(1/R1 + 1/R2 + 1/R...), that looks complicated, the good news is with speakers, since they should be the same impedance, 2 speakers in parallel is basically 1/2 of each speaker, 2X 16 ohm speakers in parallel is an 8 ohm total impedance, 2X 8 ohm speakers is a 4 ohm total impedance.
Probably want to snip the + wire, if you were using a stereo power amp or even if you are using 2 separate amps, -/gnd sides are probably all tied together or connect together through AC chassis ground. Safest just to cut both. FWIW, the + wire is the one connected to the tip.
BR, yeah, that is the idea, running stereo requires 2 separate circuits, but you'll need 2 power amps, or a stereo power amp to do it, a pedal won't cut it, and if you hook the speaker out to the pedal in, there will probably be smoke coming from the pedal shortly. IMHO, running stereo from one cab, especially a 2 - 12 cab, doesn't really do much because there is no real separation. At one point many moons ago, I had a stereo rig with two 2-12 Avatar cabinets that sounded amazing, but when you got to clubs they were usually running mono anyway.
This is a side track from your original question, your speakers are in parallel. Basically if 2 speakers are in series you add their impedance together, R1 + R2 + R... = Rtotal
If they are in parallel the total is the reciprocal of the total of the reciprocals of the individual impedances or Rtotal = 1/(1/R1 + 1/R2 + 1/R...), that looks complicated, the good news is with speakers, since they should be the same impedance, 2 speakers in parallel is basically 1/2 of each speaker, 2X 16 ohm speakers in parallel is an 8 ohm total impedance, 2X 8 ohm speakers is a 4 ohm total impedance.
MkIII Renegade
New member
L
Little Pigbacon
Guest
Re: How will I know??
Definitely cut both wires. You don't want to connect the grounds of two random amplifiers together. Speaker (-) isn't always ground.
Definitely cut both wires. You don't want to connect the grounds of two random amplifiers together. Speaker (-) isn't always ground.
