Wait! Wait! Wait!

[Ivan303]

I happen to have TWO (count them) S.E.X. kits just sitting.  Could I 'bridge' them to produce 4 watts each and use them to drive my 500 HZ and down mid-bass folded horns and use the Monamour 2A3 Monoblocks on the Edgar salad bowls?

With the bonus of a volume pot on each, matching the two sides, left and right, (they are a bit off from each other by about 3db or more) would be a breeze.

Edgar salad bowls are perfect as the JBL 2441 compression drivers were recently re-magnetized and new diaphragms installed. The JBL k-120 drivers hidden in the mid-bass horns will likely never be touched.  Prior owner applied cocobolo wood veneer to the cabinets covering ALL of the screws so getting inside will might involve severe damage to them.

But OK.  If I knew the secrets of bridging the two S.E.X. amps, I'm in business!  Workbench is cleared in anticipation of the soon-to-arrive Eros 2 so please share the secrets.

Thanks

[Doc B.]

First you will want to rewire your output transformer secondaries to half of the speaker load impedance they are currently wired for - if wired for 8 ohms wire them for 4, etc.

There are two sets of red/black binding posts on the back. Connect the right channel red post to the left channel black post with a short jumper. Then go underneath the chassis. If the left channel black post has a connection to the chassis ground, lift it (sorry I don't have an amp or a manual in front of me).

Connect your speaker cables to left channel red post and right channel black post. Using the example above this wires the two 4 ohm transformer secondary windings in series to create a single 8 ohm secondary.

Now take the interconnect from the source channel and plug it into the female plug of a single female to dual male cable splitter. Connect the two male plug ends of the splitter to the two input jacks. This applies the signal to both output tubes and thus to the output transformer primaries which are wired in parallel.

[Ivan303]

Thanks Dan,

Should be well within my skill-set.

OK, barely within my skill-set.

[Ivan303]

Dang!  Even found the manual.

And the C4S Upgrade Kit manual.

All the other kit manuals are in one 3 ring binder so maybe be a good to to get these in a binder as well.

[2wo]

If you decide to keep it that way, you can connect the inputs together inside and lose the splitter.