Check this out

Please, with all due respect, this is not a boat. In normal temperature and humidity environments that would be encountered in a high end audio home, this is not a problem.

Look, electronic circuits don't last long in salt water immersion tests either. I think we have to be at least semi-realistic about what we are discussing here.

Great care went into the design and manufacture of this turntable. Long term stability was one of the concerns, and it was dealt with in the best way possible. Given a normal environment, this will be quite stable.

I certainly wouldn't recommend this turntable for outdoor patio use in the tropical rain forests of Brazil. For temperature and humidity controlled indoor living room use, this will do just fine.

I'm sing-in' in the rain,
Just sing-in' in the rain...

Jypres raises some good questions about wood stability. Questions that we have given a lot of thought. We have done a lot to minimize the risks but wood stability is a tricky thing. The bottom line is there will always be at least some risk no matter what we do.

We rely on a number of techniques for stabilization of the platters. Each technique by itself would probably be inadequate but combined we believe the risk to be very low.

Our primary vapor barrier is formed when the core of the platter is assembled. Many small pieces of wood are saturated in epoxy and then joined under light pressure, leaving an effective vapor barrier between each piece. This is a much more effective barrier than can be obtained with a relatively thin finish. Once the core of the platter has been formed it is completely encased with a layer of cocbolo. The veneer is attached with epoxy to form an additional vapor barrier. We top this off with an epoxy coating. The exterior epoxy coating is fairly effective, but by itself would be inadequate.

Even with the above techniques, some limited moisture exchange is inevitable. Using many small pieces of wood with strong epoxy bonds minimizes movement. The dimensional changes in small piece of wood are small enough that the force can usually be contained by a strong bond. It's what we see with plywood. The bond between thin layers is sufficient to stabilize wood even with significant moisture exchange.

In addition to using a lot of small pieces of wood we construct the platter to expand and contract gracefully. The grain of the core of the platter is oriented such that the inevitable microscopic dimensional changes will be uniform around the platters circumference. This way even if there is some change the platter will retain it's concentricity.

Last of all well selected Jatoba for construction of the platter core because it has a very low moisture/dimension coefficient.

Chris

TWL, Do you work for Teres or have some other vested interest here? Sorry but, your defensiveness to reasonable questioning of this issue leads me to question your motives.
I simply point out to others that they should carefully research the subject of wood stability on the internet and form their own opinion.
Notwithstanding your comments, average homes without humidity control are subject to very extreme variations in humidity, particularly here in the Northeast. Perhaps you live elsewhere. As a part time woodworker (I build 18th century reproductions), I am well acquainted with this problem, but as I said, don't take my word for it, just do your homework before investing. I'm sure Teres has done what they can to minimize this issue although I would still suggest they might think about treatment with PEG to replace all water content rather than just trying to seal wet wood.