Compare Maggie 1.6QR to IIIA

I've had the IIIs, and just moved to the 3.6Rs. The biggest difference other than the size of the panel is that the IIIA is a true ribbon tweeter where the 1.6QR is a quasi-ribbon.
My main concern about the older IIIA is how well were they treated? As an older product (1987 or there abouts), wire delamination on the mid/bass panel could become an issue resulting in the world famous Magnepan "panel-rattle" or "panel-flap" If they are in good shape they are capable of really making magic if you have the space for them. They are about the same size as the current 3.6R. Power issues, I assume are not an issue for you if you are considering these two models. A pair of MGIIIAs used can be had for a little less than half the cost of the new 1.6QR, but the 1.6 is an incredible buy for the money new or used as well.
Examine the ribbon on the IIIs to make sure it is in good shape. Picking them up yourself is a good way to insure ribbon integrety rather than risk shipping (especially if the magnetic ribbon protection strip is missing).

Thanks for reply. This is what the seller is saying about them. "Magnepan model 3a speakers in beautiful condition. Just refurbed this past summer. Comes complete with original shipping boxes & manual (unpictured). Includes the necessary Magnepan crossovers. The speakers are in MINT condition. During the refurb process the elements were recoated with miloxane (direct from Magnepan) to insure the elements remain very pliable and "fresh". The tweeters were replaced 3 years ago even though they sounded fine." What do you think?

How much are they asking for them? Because of their age, they usually sell for about 750.00 - 900.00/pr. If you can land somewhere in there, based on what you posted, they should give you years of listening enjoyment.