VTA ST 70 16 ohm output to speakers

I'm getting a pair of 16 ohm speakers and just want to double check that I'll be doing this right. I can solder okay but I'm not a tech.

Bob said...
"After March of 2017 all the VTA amps have TWO red posts. In most cases the two red posts were set up for 4 and 8 ohms and the yellow (16 ohm) wire is still connected to the NFB eyelet on the driver board. If you have 16 ohm speakers, you should connect the YELLOW (16 ohm) wire to one of the red binding posts and then run a wire from that post to the NFB eyelet on the driver board to still provide negative feedback for the amp."

So, I plan on snipping those long yellow wires that run from the back of the amp to the front, connect one snipped end to the speaker terminal and from that terminal run a piece of wire back to the other snipped end and splice/solder/shrink tube it so I'll still have a connection to the board (I don't want to get the iron close to the board, just to be careful).

Is this okay and is 600 volt 18 gauge wire okay to use to connect the terminal back to the yellow wire?
Thanks for the help.
ps I now have the three terminal connectors on my ST70. So I'll have 8ohm and 16 ohm outputs.

Bob, Is my 18 gauge 600 volt wire okay to use?

There is no magic in the FB routing shown. You should be able to simply cut the yellow 16Ω lead at a suitable position to reach the 16Ω terminal and join two leads at the terminal.

One could argue that a more direct route, rather than right next to the power transformer might benefit.

I'm going to try and keep the wiring looking pretty much as it is. The amp is dead quiet and I'd hate to change that (just in case).
To tell the truth, I hate fooling with it all but it'll be better to feed the new speakers with the correct tap.

More work than it should have been (I'm not a tech) but it came out okay.
The speakers won't be in for another month but at least I'll be ready ;-)

Man...it would be SOOO much easier to mess with stuff like this if the speaker connection posts had holes for the wires to go through.

Chaps, induction is reduced as the square of the distance.

As built, the feedback passes right next to the transformer, say ½" from the core.
Moving the lead 2" away reduces the induction by a factor of 16.

One channel FB passes directly along the twist 120v for about 3", the other directly parallels the untwisted 120v for ≈1"

I just picked up a VTA ST-120. I take it I should make this modification if I plan on driving 16 ohm resistance speakers, correct?