ScruffyHeadedNerfHerder
Well-Known Member
So at the moment, I'm running my jvm210 head into a crate 412 cab. I'm running 16 ohms. I was just curious that if I go from 16 ohms to like 8 or 4 ohms. How much of a difference would it make, if any.?
I need advice on ohms.
- Thread starter ScruffyHeadedNerfHerder
- Start date
eSGEe
Ferengi Ambassador of Trade
1. get rid of that Limey head and get a MESA --- then it tells you on the back what to run where 
just kidding you walked into that one 
Oh the Marshall hate mail will abound NOW!!!!!!!!
I OWN AND LOVE A MARSHALL VALVESTATE BEFORE YOU CRUCIFICATE ME!!!!!
a helpful link........
mesaboogie.zendesk.com
.
just kidding you walked into that one Oh the Marshall hate mail will abound NOW!!!!!!!!
I OWN AND LOVE A MARSHALL VALVESTATE BEFORE YOU CRUCIFICATE ME!!!!!
a helpful link........
What is the best way to connect speakers or cabinets?
What is the best way to connect speakers or cabinets? Wiring up speakers to provide the most effective load and making sure that all of them are in phase will help in creating the best sound possib...
mesaboogie.zendesk.com
Sp8ctre
Ambassador of Steel
Difference in what manner? If the amp is not made to run a 4 ohm load you could do some serious damage. If the amp is set up to run any of the ohm values
it really won't make any difference sound wise. An 8 ohm 4x14 set up will sound the same as a 16 ohm 4x12 if they are running on the proper output jack of the amp.
jtcnj
Ambassador of the Crossroad
Avoid mismatching impedance, there is no advantage to it.
When the output taps on the OT are matched to the expected speaker load it results in the correct, or as-designed match to the output impedance to the power tubes.
Thats it; using a matching impedance to correctly match the what the output tubes "see" as the load from the speakers.
There are lots of discussion on whether you can run mismatches without damaging anything, and what generally happens when you do.
None of them I have read are about improvements in tone.
If you are familiar with any type of manual transmission - running in too high a gear makes the engine work too hard, lugging, over loaded.
Too low a gear and the engine over revs. Not exact but gives the idea.
When the output taps on the OT are matched to the expected speaker load it results in the correct, or as-designed match to the output impedance to the power tubes.
Thats it; using a matching impedance to correctly match the what the output tubes "see" as the load from the speakers.
There are lots of discussion on whether you can run mismatches without damaging anything, and what generally happens when you do.
None of them I have read are about improvements in tone.
If you are familiar with any type of manual transmission - running in too high a gear makes the engine work too hard, lugging, over loaded.
Too low a gear and the engine over revs. Not exact but gives the idea.
Sp8ctre
Ambassador of Steel
Between this and Adrian's link it should provide a great explanation!
gball
Ambassador of Boogie
The JVM will handle just about any load you can throw at it, but as said previously there is not really any reason. In my own experience I've noticed that a 4-ohm load can be just the tiniest bit louder than an 8 or 16, and a 16-ohm speaker can sound just a smidge darker than the same speaker spec'd for 8-ohms, but the differences are so minor as to be negligible and Marshalls always seem happiest running a 16-ohm load so no reason to shake the tree IMO.
To my knowledge no difference , but you do have to match ohms
or you will burn some parts of your amp up, 2 16 ohm cabs = 8 ohms load !
Cheers Mitch
You must now stand between both of my origin 50’s and I am going to use full power at 3 on the volume, for my song trash, then all will be forgiven!!1. get rid of that Limey head and get a MESA --- then it tells you on the back what to run where
Oh the Marshall hate mail will abound NOW!!!!!!!!
I OWN AND LOVE A MARSHALL VALVESTATE BEFORE YOU CRUCIFICATE ME!!!!!
a helpful link........
.What is the best way to connect speakers or cabinets?
What is the best way to connect speakers or cabinets? Wiring up speakers to provide the most effective load and making sure that all of them are in phase will help in creating the best sound possib...
Cheers Mitch
Hold mine as wellall righty then bring em on over
Trident ....here HOLD MY BEER! BUWAHAHAHAHAHAH
OP
ScruffyHeadedNerfHerder
Well-Known Member
I was just wondering because currently I'm running 16 ohm from my head to 16 ohms on the cab. All that's self explanatory. But I was just mainly wondering what's the big difference between running at 16 ohms vs 4 ohms? My head and cab can handle either or.
OP
ScruffyHeadedNerfHerder
Well-Known Member
Also my cab has a selector switch to select the ohms desired but I really do t know much about them
steveb63
Ambassador of the Capacitor
Now does Randall Smith pay you per post, or is it lump sum? LOL1. get rid of that Limey head and get a MESA --- then it tells you on the back what to run where
Oh the Marshall hate mail will abound NOW!!!!!!!!
I OWN AND LOVE A MARSHALL VALVESTATE BEFORE YOU CRUCIFICATE ME!!!!!
a helpful link........
.What is the best way to connect speakers or cabinets?
What is the best way to connect speakers or cabinets? Wiring up speakers to provide the most effective load and making sure that all of them are in phase will help in creating the best sound possib...
Just kidding
OP
ScruffyHeadedNerfHerder
Well-Known Member
Listened to this video in studio head phones. To me it sounds link the 4 ohms had a slightly deeper tighter tone and the 16 ohms was a bit brighter and a little bit more on the treble side
syscokid
Ambassador of War & Peace
I think I hear at certain times, the 16 ohm samples as the equivalence of turning up the presence control of an amp ever so slightly... very slightly! But the demo of switching back and forth from 4 ohm to 16 ohm was not consistent enough, IMO. I think it would have been better if Johan had been able to use 2 separate but identical cabs and speakers, one cab wired 4 ohms and the other at 16 ohms. Then use an A-B switching system to quickly switch between the cabs.
Sp8ctre
Ambassador of Steel
I really heard little to no difference listening through high quality studio monitors.
What I have learned over the last year is that I really want to hang out with Johan!