Unfortunately, I can't at this point. I don't yet have possession of the sub. I had purchased it via eBay from a local gent and before we did the handoff he did some testing and noticed some oddities in the sound. I'll try to get the quote so I can be more specific. This is why I'm trying to figure out what to do... :( He's willing to drop the sale since he didn't notice this before, but for $200 I think it is probably worth taking a shot. (That's the price he's dropped the Interphase 1A and sub; I think it is the smaller Janis). OTOH, I'm kinda ignorant here and it might not be worth it at any price. So I'm just tossing this out there looking for advice.
A very nice gentleman has offered to send me some docs and told me how to contact John, so I'm hoping that this will yeild some good info. However, any help is welcome!!!