Von scheikert VR4jr what are you using ?

Mfsoa is correct, the bottom posts of the woofer cabinet are connected to the 2 woofers (in parallel).
The upper posts of the woofer cabinet connect to the umbilical jack only. With the binding post jumper plates installed, this allows you to use a single pair of cables (and the umbilical) to run the entire speaker.

We've found the best method is to connect your main cables to the upper cabinet, and use heavy jumpers from there to the woofer binding posts. This allows the purist connection from amplifier to mid & tweeter, and you eliminate the supplied umbilical and the jumper plates at the binding posts.

Blindjim,
"If there is an internal connection of the two bass module drivers... Why then, is there a brass plate on the outside of the bass module ‘apparently’ connecting those two drivers?" Especially if they are hooked up on the inside. I would think the brass plates on the outside supurfulus, or at the very lezst redundant. Then there's the question,"Why are they there if not to connect two different drivers?"

The two bass module drivers are only connected to the lower binding posts. The brass plate is used to transfer the signal between the lower posts (and therefore both woofers)and the upper posts which connect to the datalink only. That's why the upper posts on the bass module are labelled "Midrange/Tweeter input".

I agree that the brass plates on most speakers strap the woofer to the midrange/tweeter to allow for single wiring, but in the VSRs case this isn't so. (Well, kinda so - it will allow single wiring IF the datalink is connected).

Yeah, there are a bunch of ways to hook these guys up. Perhaps the set of cables you have going to the "Midrange/Tweeter input" are changing what your amp "sees", but I don't think so. Maybe you'll have luck in attaching both wires to the lowest pair, if you're using spades.

I think I see why you get better performance having the woofers driven directly by cables than by the straps with the cables hooked to the "Midrange/tweeter input".

All the best...

I am confused. If I am bi-wiring should I remove the jumper plate between the two bass terminals if I am connected to the lower one?

Jdodmead

...it would seem so.

As I understand the posting, the plates are there only to hook up to the supplied umbilical... which is still another ten or so inches above the "mystery posts", (must have been a shortage of wire somewhere), and it supplies the upper module. So in the case of biwiring, removing the plates seems to me to be the way to go, as the other half of the bi-wire hooks to the top module.. eliminating the umbilical.

Of course that smacks of an oversight, or flaw in the engineering… like a “work around”, or afterthought. I mean if both drivers are internally wired together, then why not continue that wiring path within the cabinet up to the connection of the UC output on the bass unit? Safer that way. Cleaner looking too, having less stuff sticking out of the rear of the bass cabinet.

Too bad they didn't simply do away with one set of posts on the bass module, huh? That's the issue entirely, I think... and still one set of standard speaker wires would hook up the JR's along with the umbilical using the then, one set, of posts... and likely not require VR4 - JR (or possibly other VR owners), to have to get special ordered bi-wires for their speakers, as some will make that stretch, but not too many make the stretch from very bottom to very top. Though I was told MIT had pretty long tails on their bi-wires. It’d sure save some money in time & materials too…. Not to mention the time spent answering hook up queries, consequently all would benefit.. or maybe an upgrade or mod?

Hint! Hint!

I'll be dogged! Looks like I got a set of speaker wires for sale... perhaps.. or my HT system is about to get an upgrade in speaker cables…. Or I’ll just shotgun them using the two sets of bi-wires… maybe. Something about it just doesn’t jive IMHO. I'll try it that way this weekend, though

Jdodmead
You should keep the plate, that will serve as the connection for the top woofer. Enjoy