angelripper1

Is this hooked up right?Its a marshall jcm 900 duel reverb with a mashall 1960 vintage 4 12 cab.Hers a couple of pics how i have it hooked up.Please respond if you know the correct way to hook this amp up.

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lerxst88

looks good unless the head is designed to run 16 ohms instead of the (4) ohms

stryker59

i would plug into the 16 ohm jack on the cab...

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steelhorse

Is there a 16 ohm input? All I see on mine is the same as this, a 4 and 8 ohm.

Oops! I see it over there under the lip of the panel!

Keefoman

Looks right to me. How you can have a switch that is 16 or 4 ohms, I don't know, but your manual should say something about it. Also presuming you have a speaker-cable there? (Not a regular guitar-jack-signal cable...)

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steelhorse

According to the manual the 4 ohm is for combos only(?) I didn't make it up that's what it says so why it's labeled on the head like that is a good question that more seasoned Marshall aficionados can probably answer.

Anyway....

I took a look at the back of my 900 head and 1960A cab and I have the head set at 16ohms and connected to the cab thru the 16ohm input on the right side which would be the same as yours.

So I think all you need to do is move the cable on the cab to the right side input where it says 16ohm.

Also like keefoman suggested be sure it's the correct type of cable.

angelripper1

[QUOTE=Keefoman;10426]Looks right to me. How you can have a switch that is 16 or 4 ohms, I don't know, but your manual should say something about it. Also presuming you have a speaker-cable there? (Not a regular guitar-jack-signal cable...)[/QUOTEIts reg guitar cable whats the difference?

steelhorse

The guitar cable is an instrument cable and is generally unshielded whereas the speaker cable is.

Get a speaker cable, trust us!



(also plug the speaker cable into the 16ohm input of your cab)

angelripper1

oh i trust you i just didnt know and i just pluged the cab in on the 16 ohm input and when it warms up it starts cutting out but its fine on the 4 ohm side of the cab???

steelhorse

Hmm. odd. Definitely pick a speaker cable up asap and try that and let us know how that works!

Make sure when you go the music shop you tell them you want a good speaker cable NOT an instrument cable.

angelripper1

im looking up speaker cables online know and writing down the part #.
gonna go get one today.

angelripper1

ok i got 2 monster cables one 3 ft for speaker and a 12 ft instament
all problems are gone it sounds great and im pluged to the 16 ohm on the cab.

steelhorse

right on!

coldsteal2

8 ohms on amp 8 ohm input on cab

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steelhorse

I believe both 16 or 8 ohms are ok but why do you think the 8 ohm connections would work better coldsteal?

I'm not doubting your advice I just want to understand more about our amps!

DragonSarc

has any one tried this to see if it will sound better if I switch my TSL 100 to 8 ohms and use 2 wires from the back of the head and connect it to a single 4x12 cab on stereo mode?

steelhorse

Can't do it. It's not a stereo amp.

DragonSarc

Yeah I mean it wont be stereo it will be still mono due to the amp is mono (just stereo settings on the cab so it will be 8 ohms) but will it have abetter sound cuz your using 2 wires? like the saying thicker wire is better than thin wire, since your using 2 wires current flows better maybe?

steelhorse

I never had the desire to do that. You could invest in heavy gauge speaker cable like I use.

As far as connecting 2 cables I really don't think that it will help it sound better or be good for the amp, but like I said I've never tried it.