orange 2x12 16 ohms.....

[hithere]

hey guys I really think my next gear purchase will be an orange 2x12, but I don't see the ability to run anything other than 16 ohms... is this true? I see most marshal cabs let you switch between 8.

I really want to run it with my princeton reverb, but it runs at 8 ohms.

[Ohara]

after reading the posts after mine, I am now editing it to simply say no.

[bclaire]

You can't rewire a 16 ohm 2X12 cab to 8 ohms. 4 ohms maybe but that's it.

The cab (like most other cabs that run at 16 ohms) is designed for a head not a Fender combo. To be honest, even though your Fender says it wants to see an 8 ohm load, Fenders are the most forgiving of tube amps and you could run it without modifying it.

[hithere]

damn, well I guess I am going to make 2 different cab purchases then, I really dig my princeton through some darker speakers, loved it through a marshall 4x12.

I noticed marshall lets you switch between 16 and 8, is this less common with a lot of other cabs?

[bclaire]

damn, well I guess I am going to make 2 different cab purchases then, I really dig my princeton through some darker speakers, loved it through a marshall 4x12.

I noticed marshall lets you switch between 16 and 8, is this less common with a lot of other cabs?

16 and 8? I think you mean 16 and 4. That's the only option I know of with a Marshall 4X12.

[Randy Bass]

The Orange PPC212 is 16 ohms because it has two 8 ohm speakers in it which are wired in series. You could rewire the speakers in parallel to achieve a 4 ohm load. With two 8 ohm speakers, those are your only two options unless you want to turn it into a stereo cab (2x8 ohms) and use only one of the speakers with your Princeton. You would need to replace the speakers with two 16 ohm speakers wired in parallel to have a total impedance of 8 ohms with that cab.

If you have a PRRI, the MINIMUM impedance is 8 ohms. A 16 ohm load would be fine as well. The important part would be not to run a 4 ohm load with it. You could always disconnect the internal speaker in the PR and run TWO 16 ohm cabs for a total 8 ohm load!

Your reference to Marshall cabs allowing you to switch between 16 ohms and 8 ohms is not specific enough for me to be completely clear (2x12 or 4x12?). A Marshall 1936 (2x12) cab is wired for 8 ohms mono (both speakers) or 16 ohms stereo (it has two 16 ohm speakers). For normal mono operation, it would be considered an 8 ohm cab. You would only be using one speaker if you ran it at 16 ohms.

Many companies including Marshall make 4x12 cabs that are switchable to run 16 ohm (series-parallel) or 4 ohm (parallel) loads in mono operation and 8 ohms (x2) stereo.

See these wiring diagrams for a clearer version of 2x12 cab wiring:
http://www.avatarspeakers.com/wiring%20diagrams.htm" onclick="window.open(this.href);return false;

Avatar can probably make you a cab with whatever quantity of speakers and whatever impedance you like. They could even make it look like your Fender:
http://www.avatarspeakers.com/list%20guitar%20cabs.htm" onclick="window.open(this.href);return false;

However, nothing compares to the HUGE sound of the Orange PPC212.

[kaospilot]

Sorry for rising this from the dead, but I have a question about my PPC212 and rewiring it.
I just purchased a Sovtek Mig 100 which only supports 4 / 8 ohm cabs, I want to run it through my PPC212. Will it damage my amp or cab if I just run my 8 ohm head into the Orange cab?

Or is it better to rewire the 8ohm speakers in my Orange to 4 ohm? Will this affect sound quality?

[Randy Bass]

Sorry for rising this from the dead, but I have a question about my PPC212 and rewiring it.
I just purchased a Sovtek Mig 100 which only supports 4 / 8 ohm cabs, I want to run it through my PPC212. Will it damage my amp or cab if I just run my 8 ohm head into the Orange cab?

Or is it better to rewire the 8ohm speakers in my Orange to 4 ohm? Will this affect sound quality?

You can run the Sovtek head through your 16-ohm PPC212 without serious risk of damaging the speakers, though it is possible to overheat (blow) them if you play really loud for a really long time. If this is going to be your setup for a while, I would rewire the cab for 4 ohms. Just make sure that you put a warning sticker or something on the back so you (or someone else) won't end up messing up a different head accidentally.

[kaospilot]

It probably will be for some time, maybe i'll get a PPC4x12, but since they're 16ohm too it'll need rewiring (if thats possible, anyone with a wiring diagram how to do so)?

And what about sound? WIll changing the wiring affect it, or not?

[Randy Bass]

It probably will be for some time, maybe i'll get a PPC4x12, but since they're 16ohm too it'll need rewiring (if thats possible, anyone with a wiring diagram how to do so)?

And what about sound? WIll changing the wiring affect it, or not?

Below is a diagram to wire a 4x12 with 16-ohm speakers in parallel to achieve a 4-ohm total load. You basically are connecting all of the positive terminals together in one chain and all of the negatives in another. It should not affect the sound in a noticeable manner.

[Conradkr]

Hi guys

Sorry to hijack this thread but it seemed the most relevant one to ask my question on rather than poem a new thread

Great to be on this forum again - I bought three Marshall heads since I was last on here !!!
(1 x jvm410h )
(1x Jcm800 - slp 1959 -1983 model) and (1x jcm 800 - 2303x reissue head)

I have also subsequently bought an orange cr120h and loved it so much I just bought the rockerverb 50watt mark 3 head last week.

Anyways!! - I have an orange ppc212 open backed cab with 2 x 16ohm speakers wired in parallel (so an 8 ohm load)

Question is :
do I connect just one speaker cable to the input labelled "1x8 ohm and 2x16 ohm" or

do I need to connect two individual speaker cables?

I'm assuming one cable however as this is a brand new head I don't want to risk damage to it!!

I'm looking to play tomorrow morning before work (and blow my neighbours out of their beds- whilst my wife takes my son to school ) so your knowledge and input are appreciated

[fiveightandten]

Hi guys

Sorry to hijack this thread but it seemed the most relevant one to ask my question on rather than poem a new thread

Great to be on this forum again - I bought three Marshall heads since I was last on here !!!
(1 x jvm410h )
(1x Jcm800 - slp 1959 -1983 model) and (1x jcm 800 - 2303x reissue head)

I have also subsequently bought an orange cr120h and loved it so much I just bought the rockerverb 50watt mark 3 head last week.

Anyways!! - I have an orange ppc212 open backed cab with 2 x 16ohm speakers wired in parallel (so an 8 ohm load)

Question is :
do I connect just one speaker cable to the input labelled "1x8 ohm and 2x16 ohm" or

do I need to connect two individual speaker cables?

I'm assuming one cable however as this is a brand new head I don't want to risk damage to it!!

I'm looking to play tomorrow morning before work (and blow my neighbours out of their beds- whilst my wife takes my son to school ) so your knowledge and input are appreciated

That's correct. Just one speaker cable from the head's 8 ohm jack into either of the jacks on the cabinet (make sure it's really an 8 ohm cabinet...I thought the PPC212OB was 16 ohms)

The jacks on the cabinet are connected internally. There's no need to use two speaker cables. They're just there in case you want to daisy chain a 2nd cabinet.


-Nick

[Ronnie Robinson]

The Ppc212 is a 16 ohm cab (as nearly all the orange cabs) with two 8 ohm speakers so someone must of changed the two speakers to 16 ohm.

[pedecamp]

Lots of responses in this thread. For a quick answer to the original question, yes you can run your 8 ohm amp safely into a 16 ohm cabinet. Typically you want to match but the only situation you can safely run a mismatch is when the cab ohms are higher than the amp ohms.