turning super reverb into a head

[sesroh]

not going to explain my problem in this thread. it's in the thread in the buy and sell.

I also posted this on the gear page, but it seems like that forum is just way too busy and my thread just gets lost.

I want to put a super reverb (70 watt version) into a headbox (http://www.mojomusicalsupply.com/item.asp?pid=563853&pg=44972&id=4000160). I want to use it with an orange 2X12 which is 16 ohms. Some people say this won't work? On the back of the super reverb it says minimum loads 4 ohm under the speaker outputs. Would I have to modify the amp or the cabinet? I would rather leave my cabinet untampered.

[Hamm Guitars]

Why not just re-wire your cabinet to 4 ohms? I am assuming that it has 2 8ohm speakers that are currently in series to get 16 ohms, putting the two 8ohm speakers in paralell will give you 4 ohms which is the minimum load.

I just read the rest of your post....

The 4 ohms minimum is a little misslleading I would think, as it almost makes you think that the load has to be 4 ohms or less, which could be the case - I don't really know for sure.

I would assume that what the spec really means is that 4ohms is the least amount of impedance that the amp is designed to drive, so anything 4ohms and up would be good. Again, I don't know for sure.

Doesn't that amp have 4 tens wired as 8 ohms originally?

[sesroh]

im not sure, I know nothing about ohms haha. All I know is that it has 4 10"s and the speaker loads are 4 ohm minimum.

[Sneaky]

im not sure, I know nothing about ohms haha. All I know is that it has 4 10"s and the speaker loads are 4 ohm minimum.


I pretty sure any Super Reverb I've seen has 4x10" 8 ohm speakers, wired to 2 ohms (series?). Maybe the 70w version is different. If you need a 4ohms load just rewire your 2x12 like Hammy says.

Pete

[sesroh]

a few people have said that to me, but I don't know how to rewire it and won't that mean I won't be able to use it with other heads if I decided to change amps?

[Hamm Guitars]

Your cab is currently wired like this:

There are three wires. One goes to the positive terminal on one speaker (from the jack), the other (from the jack) goes to the negative on the other speaker. The third wire jumps from the two ther terminals on the speakers (the negative terminal on one to the positive on the other). This is standard series wiring.

To get 4ohms, you want to wire them in parallel. Basically all you have to do is connect the jack positive and negative directlt to one speaker and then jumper over the the other speaker with another set of wires. You could also run another pair of wires straight from the jack.

If you just use the wires that you currently have, you will only have to add one more piece of wire, and it will be easy to put back to 16ohms if you need to.

[Hamm Guitars]

I just read your other post. Why don't you just disconnect the speaker with the tear in it? If the 4 speakers are all wired to run at 2ohms, then removing the wires from that speaker will leave you with 3.3ohms??

You can then send out the speaker with the tear in it to get reconed.

That would surely be cheaper than putting the amp in a head box and using a seperate cabinet - unless you have a preference for the head version, I guess....

[sesroh]

i was trying to sell this so i could get a head. it's the biggest bitch of an amp I've ever owned. I seriously hate it. It's got an amazing sound and looks nice, but it's way too bulky and bashes you in the knees whenever you lift it. not my kind of amp.