marshall 1960A cab.....what is 8 ohm stereo?
- Thread starter flank
- Start date
korovamilkdud
WhoDatologist
Re: marshall 1960A cab.....what is 8 ohm stereo?
How many ohms is your amp? (forget the speakers for a second)
How many ohms is your amp? (forget the speakers for a second)
flank
New member
Re: marshall 1960A cab.....what is 8 ohm stereo?
4 8 or 16......ive tried 4,8 and 16, and dont really hear a difference in sound......and i dont hear a difference between 8 on left, or 8 on right.....
i know some people say there is a small difference between ohms settings on some amps, and on other its more pronounced, or not noticeable at all
i dont really hear much of a difference between any of the settings, but i just dont know what exactly the 8 ohm left or right stereo setting actually means in reality?
4 8 or 16......ive tried 4,8 and 16, and dont really hear a difference in sound......and i dont hear a difference between 8 on left, or 8 on right.....
i know some people say there is a small difference between ohms settings on some amps, and on other its more pronounced, or not noticeable at all
i dont really hear much of a difference between any of the settings, but i just dont know what exactly the 8 ohm left or right stereo setting actually means in reality?
M
MrHeavyMetal
Guest
Re: marshall 1960A cab.....what is 8 ohm stereo?
Those cabs have 2 amp inputs and a 4/16 ohm mono or 8 ohm stereo switch. That means you use the mono input and set either 4 or 16 ohms or you use both inputs and put the cab switch on the 8 ohm stereo selector. You have an actual total impedance of 4 ohms on the stereo setting because each pair of 16 ohm speakers are wired in parallel on that setting and are parallel to the other pair.
The output impedance selector on your tube amp should match the actual impedance on your cab for reliability of the amp. It should be noted that most tube (and solid state) do produce more total power output to the cab using a 4 ohm load. As for hearing a difference, I don't really think so but some argue that point. Hope that helps.
flank said:
Those cabs have 2 amp inputs and a 4/16 ohm mono or 8 ohm stereo switch. That means you use the mono input and set either 4 or 16 ohms or you use both inputs and put the cab switch on the 8 ohm stereo selector. You have an actual total impedance of 4 ohms on the stereo setting because each pair of 16 ohm speakers are wired in parallel on that setting and are parallel to the other pair.
The output impedance selector on your tube amp should match the actual impedance on your cab for reliability of the amp. It should be noted that most tube (and solid state) do produce more total power output to the cab using a 4 ohm load. As for hearing a difference, I don't really think so but some argue that point. Hope that helps.
STRATDELUXER97
Stratoblaster Tone Meister
Re: marshall 1960A cab.....what is 8 ohm stereo?
Great post from MHMG....
Whether you actually hear any difference between the ohms setting has everything to do with the way your amp's "negative feedback" is setup...Some amps tap the feedback off the 4 ohm tap of the output transformer and some off the 8 ohm or 16 ohm....Some folks think their amps sound "tighter" at the lower impedence settings(Especially fender amps)I Like the way my Marshalls react off the 16 ohm settings,and the older early Marshalls were designed around the 16 ohm taps pretty much anyway...In theory,you should get more power from your amp at the 4 ohm settings,but not always true with the Marshalls...
John
Great post from MHMG....
Whether you actually hear any difference between the ohms setting has everything to do with the way your amp's "negative feedback" is setup...Some amps tap the feedback off the 4 ohm tap of the output transformer and some off the 8 ohm or 16 ohm....Some folks think their amps sound "tighter" at the lower impedence settings(Especially fender amps)I Like the way my Marshalls react off the 16 ohm settings,and the older early Marshalls were designed around the 16 ohm taps pretty much anyway...In theory,you should get more power from your amp at the 4 ohm settings,but not always true with the Marshalls...
John
Re: marshall 1960A cab.....what is 8 ohm stereo?
Unless I'm totally missing the point here ....
A stereo cabinet is designed to be run either in mono from a mono amp, or in stereo from a *stereo amp*, meaning an amp with say stereo outputs from an on-board stereo chorus or such, or running another amp output as one side and another amp's output as the other side (say a fender and marshall running into the same cabinet but not combined (two 12s for the fender, and two 12s for the marshall). Each amp's output impedance should be set for the 8ohms that each side of that cabinet terminates at when run in stereo. BTW ... Running an amp with stereo chorus outputs (read two separate power sections) into a stereo cabinet that is accidentally set on mono (even though both channels are plugged in) is a damn good way to toast the output sections of that amp. Amps with stereo delays or reverbs also can fit into this.
Truth be told if you are trying to run a mono amp off of multiple output jacks and somehow come up with a stereo or enhanced sound ... it's not going to happen. Now you can play with speaker phasing, but not on a sealed back cabinet. Unless you are just talking about playing with the amp load and that you can just do in mono.
Unless I'm totally missing the point here ....
A stereo cabinet is designed to be run either in mono from a mono amp, or in stereo from a *stereo amp*, meaning an amp with say stereo outputs from an on-board stereo chorus or such, or running another amp output as one side and another amp's output as the other side (say a fender and marshall running into the same cabinet but not combined (two 12s for the fender, and two 12s for the marshall). Each amp's output impedance should be set for the 8ohms that each side of that cabinet terminates at when run in stereo. BTW ... Running an amp with stereo chorus outputs (read two separate power sections) into a stereo cabinet that is accidentally set on mono (even though both channels are plugged in) is a damn good way to toast the output sections of that amp. Amps with stereo delays or reverbs also can fit into this.
Truth be told if you are trying to run a mono amp off of multiple output jacks and somehow come up with a stereo or enhanced sound ... it's not going to happen. Now you can play with speaker phasing, but not on a sealed back cabinet. Unless you are just talking about playing with the amp load and that you can just do in mono.
Re: marshall 1960A cab.....what is 8 ohm stereo?
Great info with this thread guys I've just picked up a 1960 a cabinet that I'm using with a lanely LV 100 solid state amp and its having no trouble in the left hand socket on a mono setting. Just got one question about these cabs, is there actually any difference in the cab size of the 1960A cabinet to the 1960AHW cabinet. I have been told the AHW cabinet is exactly the same in all aspects except the AHW is the hand wired version cabinet.reason for wanting this information is I think I know where I can get metal carry handles for a AHW to install in my A cab as the plastic original handles are nearly shot.i can get replacement plastic ones but the metal ones would be a lot more durable for sure but I just want to make sure they'll fit.if anyone can clarify on this matter it'd be a great help.
Great info with this thread guys I've just picked up a 1960 a cabinet that I'm using with a lanely LV 100 solid state amp and its having no trouble in the left hand socket on a mono setting. Just got one question about these cabs, is there actually any difference in the cab size of the 1960A cabinet to the 1960AHW cabinet. I have been told the AHW cabinet is exactly the same in all aspects except the AHW is the hand wired version cabinet.reason for wanting this information is I think I know where I can get metal carry handles for a AHW to install in my A cab as the plastic original handles are nearly shot.i can get replacement plastic ones but the metal ones would be a lot more durable for sure but I just want to make sure they'll fit.if anyone can clarify on this matter it'd be a great help.
Last edited:
F
Funkfingers
Guest
Re: marshall 1960A cab.....what is 8 ohm stereo?
Welcome to the forum.
Wherever you are on the planet, the obvious place to seek genuine Marshall spare parts is from a Marshall dealership.
Note to Mods: Another zombie thread resuscitation. Arrrrrrgh!
Welcome to the forum.
Wherever you are on the planet, the obvious place to seek genuine Marshall spare parts is from a Marshall dealership.
Note to Mods: Another zombie thread resuscitation. Arrrrrrgh!
Re: marshall 1960A cab.....what is 8 ohm stereo?
Agreed funkfingers but here in North Queensland Australia there's no dealerships of the kind you've mentioned in this nick of the woods. Just distributors and retailers and after four days of searching the Internet I've found a company called evatco that can supply accessories but there still chasing down the specifications on any difference between types of handles or any difference overall in the two cabinets I've mentioned.was hoping someone here might have that knowledge and help me out. Apologies for resurrecting the zombie thread.honestly didn't Notice the date of the last entry
Agreed funkfingers but here in North Queensland Australia there's no dealerships of the kind you've mentioned in this nick of the woods. Just distributors and retailers and after four days of searching the Internet I've found a company called evatco that can supply accessories but there still chasing down the specifications on any difference between types of handles or any difference overall in the two cabinets I've mentioned.was hoping someone here might have that knowledge and help me out. Apologies for resurrecting the zombie thread.honestly didn't Notice the date of the last entry
Last edited:
Kamanda~SD
New member
Re: marshall 1960A cab.....what is 8 ohm stereo?
Hey...you clearly found this via search vs. opening a new thread....zombie thread or not, I appreciate the effort!
Yeah tough to get stuff down there ain't it? Unfortunately I think you may have to go the expensive route for something like this...plastic ones are fairly easy, metal ones, more scarce.
Hey...you clearly found this via search vs. opening a new thread....zombie thread or not, I appreciate the effort!
Yeah tough to get stuff down there ain't it? Unfortunately I think you may have to go the expensive route for something like this...plastic ones are fairly easy, metal ones, more scarce.
KCRevel
New member
Re: marshall 1960A cab.....what is 8 ohm stereo?
The best analogy for ohm i have ever heard is that if it were plumbing instead of electrictiy the Ohms would be the diameter of the pipes. Ohms go small to big so 4ohns would be the biggest pipe for reference. If you have more of an Ohm load than your cab is set for it is like having a slow drain and just like a slow drain you run the risk of an "overflow" which rather than water on the floor you have an overloaded output transformer or worse (cable will be really hot and it can burn up anything susceptible to heat.) It wont always blow your head but if you notice your speaker cable is getting hot to the touch you are playing with fire... Ohm settings are not meant to be a tone control!!!
The best analogy for ohm i have ever heard is that if it were plumbing instead of electrictiy the Ohms would be the diameter of the pipes. Ohms go small to big so 4ohns would be the biggest pipe for reference. If you have more of an Ohm load than your cab is set for it is like having a slow drain and just like a slow drain you run the risk of an "overflow" which rather than water on the floor you have an overloaded output transformer or worse (cable will be really hot and it can burn up anything susceptible to heat.) It wont always blow your head but if you notice your speaker cable is getting hot to the touch you are playing with fire... Ohm settings are not meant to be a tone control!!!
Similar threads
