Tube Amp Archive

Mark wrote: ↑Fri Mar 28, 2025 12:47 am I had a friend drop in his old Marshall cab for a rewire, and I found fleece cloth wrapped around the post. I thought that is there to stop vibration. Sure enough the post was loose, I took the post out and with the help of a friend we replaced the staples with screws and glue. It’s quite solid now, I hadn’t intended to put a screw into the back baffle (fibreboard, not real wood) but he assured me that the screw would stop any possibility of the post vibrating against the back of the baffle.

It seems like a good thing and don’t know why Marshall doesn’t do it, any thoughts on the matter?

Thanks for your time.

Roe wrote: ↑Wed Apr 02, 2025 6:21 pm

Mark wrote: ↑Fri Mar 28, 2025 12:47 am I had a friend drop in his old Marshall cab for a rewire, and I found fleece cloth wrapped around the post. I thought that is there to stop vibration. Sure enough the post was loose, I took the post out and with the help of a friend we replaced the staples with screws and glue. It’s quite solid now, I hadn’t intended to put a screw into the back baffle (fibreboard, not real wood) but he assured me that the screw would stop any possibility of the post vibrating against the back of the baffle.

It seems like a good thing and don’t know why Marshall doesn’t do it, any thoughts on the matter?

Thanks for your time.

this is a metal mod that makes for a deader, thighter cab. A bit of resonance is good for rock though

Reeltarded wrote: ↑Wed Apr 02, 2025 12:33 pm The cabinets are designed in away that they should be tuned.

I shim the post from a handle hole. The back is marked inside for the position, and I hammer wedges in until I get the similar tight response to match cabinets to each other. The backs of the cabinets is arched out enough to see if you look very close. About 3/8ths in the middle.

Mark wrote: ↑Wed Apr 02, 2025 9:38 pm

Roe wrote: ↑Wed Apr 02, 2025 6:21 pm

Mark wrote: ↑Fri Mar 28, 2025 12:47 am I had a friend drop in his old Marshall cab for a rewire, and I found fleece cloth wrapped around the post. I thought that is there to stop vibration. Sure enough the post was loose, I took the post out and with the help of a friend we replaced the staples with screws and glue. It’s quite solid now, I hadn’t intended to put a screw into the back baffle (fibreboard, not real wood) but he assured me that the screw would stop any possibility of the post vibrating against the back of the baffle.

It seems like a good thing and don’t know why Marshall doesn’t do it, any thoughts on the matter?

Thanks for your time.

this is a metal mod that makes for a deader, thighter cab. A bit of resonance is good for rock though

Thanks for the tip, luckily the screw can always be removed. I will try with and without the centre screw.

TUBEDUDE wrote: ↑Thu Apr 03, 2025 1:34 pm Sounds like another path to tinnitus.

Reeltarded wrote: ↑Thu Apr 03, 2025 8:34 am Don't be afraid to put some stuffing in there if you are playing faster/tighter things to take the R1 reflection down a couple decibels (or more) as well.

This is another trick of reamp that uses or reveals the potential of the resonance and tuning. With just an average stock cabinet, hamner-on some low notes while adjusting the volume until the internal reflection of the cabinet is equal with the fundamental. It is a little complex to imagine, but if you sit in the floor in front of the cab and ride the rig master volume you can clearly hear the threshold when the reflection comes equal to everything else.

That is how you make insane dirty guitars sound like screaming animals on recordings. A hidden sweet-spot. It is not as loud as you probably imagine!

Maybe it is!

markh wrote: ↑Sun Apr 06, 2025 10:41 pm

Reeltarded wrote: ↑Thu Apr 03, 2025 8:34 am Don't be afraid to put some stuffing in there if you are playing faster/tighter things to take the R1 reflection down a couple decibels (or more) as well.

This is another trick of reamp that uses or reveals the potential of the resonance and tuning. With just an average stock cabinet, hamner-on some low notes while adjusting the volume until the internal reflection of the cabinet is equal with the fundamental. It is a little complex to imagine, but if you sit in the floor in front of the cab and ride the rig master volume you can clearly hear the threshold when the reflection comes equal to everything else.

That is how you make insane dirty guitars sound like screaming animals on recordings. A hidden sweet-spot. It is not as loud as you probably imagine!

Maybe it is!

The trick with matching the internal reflection to the fundamental is gold. It really does create that wild, almost vocal character in the tone if you hit it right