Mesa Boogie Road Ready 2x15

[Jon Glassett]

Hi folks. I've got an older (80s-90s) Road Ready Diesel 2x15 and it looks like the previous owner changed the jack plate on it. It currently has two 1/4" jacks, each 8 ohms. My understanding is that the cab originally had only one 4 ohm jack.

My other Mesa 2x15 (which is a bit newer) has two 8 ohm jacks and one 4 ohm jack. Ideally, I'd like both cabs to have this setup.

My question is does anyone know where I can get a replacement jack plate to fit this cab? I've looked around on the Internet a bit with no luck and thought about contacting Mesa directly on the off chance they have some older parts laying around. Before doing that, however, I thought I'd throw it out here.

I'm also curious if anyone knows where I can get manuals or wiring diagrams for these guys. The wiring looks fairly basic but I thought I should have them as a reference to be on the safe side.

Just for laughs, here's a pic of the two cabs:



The one on the right is the one in question.

Thanks in advance!

[Caca de Kick]

I remember those jack plates from the 90's. The only place you're gonna find anything for, or about that cab is from Mesa Boogie.

My 215 is an 80's one with just the single 4ohm jack, and in the past I've though about converting it to the dual-8/single-4 90's style plate. But I probably won't end up doing it now.

[fu22ba55]

Originally Posted by Jon Glassett

Just for laughs, here's a pic of the two cabs:

That is no laughing matter.

Wire 'em both up. That 400+ will run at 2 ohms all day.

You'll never go back to just 2x15s.

[Caca de Kick]

Right, no laughing matter! This is as close as I can get to you.

[Jon Glassett]

Originally Posted by fu22ba55

That is no laughing matter.

Wire 'em both up. That 400+ will run at 2 ohms all day.

You'll never go back to just 2x15s.

That's exactly what I hope to do. I want to hook up a 4 ohm jack on the other cab so I can run both together and see how much damage that will do : )

Actually, quick question on that: if I'm plugging into the 4 ohm input on both cabs, I'd want to use the 2 ohm outputs on the head, right?

[Jon Glassett]

Originally Posted by Caca de Kick

Right, no laughing matter! This is as close as I can get to you.

That is beautiful. I've seen pics of that rig before (it came up in my searches on this topic). I love that cab in the left. Never saw that configuration before.

[fu22ba55]

Originally Posted by Jon Glassett

Actually, quick question on that: if I'm plugging into the 4 ohm input on both cabs, I'd want to use the 2 ohm outputs on the head, right?

That's correct.

The 2 Ohm tap wants to see a total load of 2 Ohms. (The jacks are wired in parallel, so you'd either plug one 2-Ohm load into one of the 2 Ohm jacks, or one 4-Ohm load into each of the two 2-Ohm jacks.)

[Jon Glassett]

Originally Posted by fu22ba55

That's correct.

The 2 Ohm tap wants to see a total load of 2 Ohms. (The jacks are wired in parallel, so you'd either plug one 2-Ohm load into one of the 2 Ohm jacks, or one 4-Ohm load into each of the two 2-Ohm jacks.)

Excellent. Can't wait to get the jack thing resolved now. Thanks!

[oldbassplayergu]

get the stuff and do it yourself. you'll need a multimeter a drill a 1/4" jack and some wire! or have a tech do it . you don't need a mesa part to do that.

[Jon Glassett]

Originally Posted by oldbassplayergu

get the stuff and do it yourself. you'll need a multimeter a drill a 1/4" jack and some wire! or have a tech do it . you don't need a mesa part to do that.

True enough. DIY is my last resort since soldering isn't really my strong suit. You're right, though. No harm in giving it a shot. Worst case, I can always just wire both speaker to one of the existing jacks and call it done. It won't be clean but it will function.