4Ohm Guitar Cab...

Krsnik87

Looking for a 4 ohm cab but the only ones I can find are bass cabs, does anyone make 4 ohm guitar cabs? Any idea where to get them?

Cheers

Demeyes

Why do you need a 4 ohm cab?

unclebill98

The main reason is that most guitarist would add another cab, this brings the load down to a 2ohm load. This load is not very welcomed by most amp heads.

Krsnik87

I've ordered a Gretsch G5222, little 5w tube amp and from what I can see its 4 ohm, I wana get a cab in the next few weeks just to keep up with a drummer. I've heard of lots of people plugging the gretsch into cabs but none specify which type.

I haven't much of a clue about amps, haven't even had one in about 8 years, just been playing through a Toneport. Any help?

Cheers.

Paolo_M

Krsnik87 wrote: »

I've ordered a Gretsch G5222, little 5w tube amp and from what I can see its 4 ohm, I wana get a cab in the next few weeks just to keep up with a drummer. I've heard of lots of people plugging the gretsch into cabs but none specify which type.

I haven't much of a clue about amps, haven't even had one in about 8 years, just been playing through a Toneport. Any help?

Cheers.

Usually the ouput transformers in these 5Watters have an 8ohm secondary winding also available. It not a big job for any techie to install a switch that allows you to switch between the 4 and 8ohm winding. I put one in in my Harley Benton GA5 and run it through a Marshall cab. Works great. It would open up your cab selection choice as most 2 X 12 are 8ohms as you've probably already seen from you searching.

Eoin Madsen

Alternatively, any 2 or 4 speaker 16 ohm cab can be rewired to 4 ohms, if you don't want to lose the ability to switch back to running the speaker that's already in the amp at it's correct impedence.

Krsnik87

Thanks alot, exactly what I needed to know!

Paolo_M

Eoin Madsen wrote: »

if you don't want to lose the ability to switch back to running the speaker that's already in the amp at it's correct impedence.

That's the point of installing the switch, so you can switch back to the correct impedance when running the amps speaker.

I thought 2 X 12s were usually two 16ohm speakers wired in parallel for 8ohms or switchable to stereo as 2 X 16ohms. How do you wire these for 4ohms in this case? I suppose 2 X 8ohm speakers could be wired as 16ohm series or 4ohm parallel?

Eoin Madsen

Oops. Em, yes, I was failing to pay attention. The switch works of course - as long as the tech is clever enough not to use a toggle switch or something equally silly, and as long as the OT has an 8 ohm tap with an obvious loose wire or a tag which is identifiable as being an 8 ohm tap.

A pair of 8 ohm speakers in parallel will give 4 ohms. A quid of 16 ohm speakers in parallel will also present 4 ohms.

I only slept for 4 and a half hours last night. :pac: Anything I say today should be doubted until independently verified.

Paolo_M

Eoin Madsen wrote: »

Oops. Em, yes, I was failing to pay attention. The switch works of course - as long as the tech is clever enough not to use a toggle switch or something equally silly, and as long as the OT has an 8 ohm tap with an obvious loose wire or a tag which is identifiable as being an 8 ohm tap.

A pair of 8 ohm speakers in parallel will give 4 ohms. A quid of 16 ohm speakers in parallel will also present 4 ohms.

I only slept for 4 and a half hours last night. :pac: Anything I say today should be doubted until independently verified.

No worries, I can't function without my eight hours either

Most of the 5watter's I've seen (Valve Junior, Champ and GA5) do have the 8ohm tap and a SPDT does the trick just nicely.

Eoin Madsen

Yeah, I'd just be inclined to use a rotary or else put in a second jack rather than a toggle switch. Tripping a toggle by accident (just reaching around looking for the capo you left down there etc.) while the amp is loaded has a decent chance of sending the OT into the next life.

Hmm. Is the 8 ohm tap on the GA5 OT a loose wire taped off, or do the OTs have solder tags, or what exactly?

Paolo_M

Eoin Madsen wrote: »

Yeah, I'd just be inclined to use a rotary or else put in a second jack rather than a toggle switch. Tripping a toggle by accident (just reaching around looking for the capo you left down there etc.) while the amp is loaded has a decent chance of sending the OT into the next life.

Hmm. Is the 8 ohm tap on the GA5 OT a loose wire taped off, or do the OTs have solder tags, or what exactly?

The GA5 has a loose lead coiled up begging to be used. :pac:

Fair point on the switch type. Not to keen on the second jack (what if the user forgets to unplug the amp speaker) but the rotary switch would be a safer/more reliable job.
I just had the toggle lying around and decided to use it. My poor GA5 gets butchered every time have get an idea I want to try!!

Eoin Madsen

Building a replica of a champ at the moment. It's already been butchered, and I haven't even fully powered it up yet.