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Watts and Ohms and Cabs and Oh My!

Started by McLeanAB, November 19, 2016, 04:02:30 AM

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MarshallJMP

It doesn't put out 90W at 8 ohms, only 45W according to the amp specs.

rnolan

Then all is good then, 5 w of speaker handling to spare  :headbanger: .
Studio Rig: Stuff; Live Rig: More Stuff; Guitars: A few

McLeanAB

Found a local pair of 16ohms RIGHT after I sold an old lovely classical guitar...  just threw in the 16ohm Greenies with the 16ohm Creamies...  the volume is now much more balanced and sounds amazing!!!!

Thanks guys!
-Adam
ISP Theta Preamp, ISP Theta PRO, ISP Theta Combo and Vector 2x12 with Celestion Alnico Creams, and Charvel Wildcards with EMGs!

rnolan

Studio Rig: Stuff; Live Rig: More Stuff; Guitars: A few

vansinn

I have no such fancy things, and go Green with envy seeing the Back of such Ohm-struck noise boxens..

MarshallJMP

Quote from: vansinn on November 23, 2016, 02:01:07 AM
I have no such fancy things, and go Green with envy seeing the Back of such Ohm-struck noise boxens..

;D

MarshallJMP

BTW MC, is there a big difference between both the GB and the CB?

McLeanAB

Quote from: MarshallJMP on November 23, 2016, 03:49:55 AM
BTW MC, is there a big difference between both the GB and the CB?

Yes... they are sonically in the same ball park, along with the 75 watt G12H Creamback... both Creambacks are meant to be, if I understand correctly, a higher wattage version of the G12M 25 watt Greenback. 

However, the 75 watt has a bit more high end than the Greenie which has that lovely mid range bark... the 65 watt Creamback is much more subdued and warm sounding... which makes it a beautiful blend with the Greenie...  with that being said, some folks think the 65 watt sounds great isolated, but gets buried in a mix, whereas the Greenie will almost always shine through...

https://www.youtube.com/watch?v=_IOHz6g5lfw

https://www.youtube.com/watch?v=lpnTSxGHmGo

https://www.youtube.com/watch?v=12lXMmU73Bo

If it's any help, I think it would be amazing to have a 4x12 of Greenies and a 4x12 of 65 watt Creambacks in stereo!!!! 
-Adam
ISP Theta Preamp, ISP Theta PRO, ISP Theta Combo and Vector 2x12 with Celestion Alnico Creams, and Charvel Wildcards with EMGs!

MarshallJMP

Well it's strange, I have an old '68 marshall cab with greenbacks in it and it sounds more like creambacks then like the greenbacks. I already noticed that the new greenbacks don't l sound like the old greenbacks when I A/B a modern marshallcab with GB's and mine. Could maybe be the speaker cloth which is a basketweave.

Harley Hexxe

Hey MJMP,

    Which ones are in your 68 cab, the 25 or 30 watt?

    Some of the discussions I've been reading about have had a lot of info on the 25 vs the 30 watt green backs. Most seem to agree that the 25 watt sound darker than the 30 watt, and which is better for what style of music etc...

    It seems the popular choice of vintage reissues for today's guitar players is the 30 watt with the boutique amps that are out now. Not that I would put those in any of my split stack cabs. If I did swap out my speakers, I'd probably go with vintage JBLs or Altecs if I could find them at a reasonable price. I'm good with the 50 watt speakers that are in there now.

     Harley 8)
I only have two brain cells left, ...and I'm saving them for the weekend!

MarshallJMP

I have the M series, so the 25W, the 30W is the H serie. Those sound also very good. A friend of mine has also an old cab but with the 30W in them.  Sounds a bit more heavy and more top end while the 25W sounds warmer. That's why I combine them with a V30 cab.

Dante

#26
Okay guys, riddle me this..... when I rewired my H&K cab for stereo, I did not write down how it was originally connected  :facepalm:

It was: Four 8 ohm speakers wired for 8 ohms Mono, with an in/out jack to run into another speaker cab

I did not discard any wires, and here's what i have:

Dante

#27
And here's how I hooked it up, but I'm worried is not correct:

Harley Hexxe

Hey Dante,

    If you only want to run this cab in stereo, then remove the two wires that bridge the I/O jacks. This will give you the stereo setup @16 Ohms per side by plugging into each jack. The "Out" jack will become an "In" jack. Those two wires parallel the speaker connections to bring the cab back down to 8 Ohms.

     Harley 8)
I only have two brain cells left, ...and I'm saving them for the weekend!

MarshallJMP

Hey Dante, no need worry ,it's good like it's wired now.  :thumb-up: