Mark IIA into a Mark IV head shell?

[mkVplayer]

Would a Mark IIA chassis from a combo fit into a Mark IV head shell without altering anything?
If not what would need to change, if it's possible at all?

 

[lovetoboogie]

No, not without alterations...The chassis screws will not line up as well being a different thread size and depth...

 

[mkVplayer]

So the current screws from the combo cab won't work to hold the chassis in the headshell?

 

[gts]

So the current screws from the combo cab won't work to hold the chassis in the headshell?

It depends on their length.
Size should be an 8-32
Pull one of your current screws in the combo, take and post a pic of it.

But the real issue is the mounting hole location in a MkIV versus a IIA.
A MkIV will be 15-3/4" L->R while a IIA will be 16-3/16" L-> R (short head or combo)

 

[mkVplayer]

But the real issue is the mounting hole location in a MkIV versus a IIA.
A MkIV will be 15-3/4" L->R while a IIA will be 16-3/16" L-> R (short head or combo)

As I found out to my chagrin after buying one online!
Oh well.

 

[gts]

But the real issue is the mounting hole location in a MkIV versus a IIA.
A MkIV will be 15-3/4" L->R while a IIA will be 16-3/16" L-> R (short head or combo)

As I found out to my chagrin after buying one online!
Oh well.

Yeah it happens to the best of us.
I found out when after I made a couple of headshells (based on what I had).
Later discovered the mounting hole spacing was different for the Mark series amps starting during mid-production of the IIB.
Mark series Long heads and Coliseums have different spacing as well depending on the model and year.
Keeps ya on your toes :wink: