Hi-Fi is for many about emotional engagement with their music of choice, so it unsurprising to me that you feel conflicted about selling the DBLs. I get the emotional attachment to a piece of kit because I feel the same way about my LP12, and it is why I never sold it and have kept the original plinth, top plate and lid. The rational thing for you to do would be to sell the speakers, but humans are more than rational beings; we are emotional beings too, and it is important to take heed of this. I think you are doing the right thing to keep them for now. If you decide to sell in a few months or a year, the speakers being kept in a heated, dry garage will be fine, plus you will be less likely to regret selling them. Sometimes it should be heart before head when it comes to decisions.
My dbls bearly fit in the house. But they arnt going anywhere 
Your garage looks huge set up another system lol.
This post reminds me I really need to let stuff go and thin down my “just in case” stash. I have 5 pairs of decent speakers not connected to anything for starters!
In the case of those DBL’s I’d agree with others comments, if there’s no plan upcoming to do them justice, convert them in to funds you’ll actually benefit from, whatever that may be.
I really should do the same myself now!
I recall asking how best to store classic vehicles in a garage, and I was told the issue isnt so much moisture, but more lack of airflow (stagnant air). The solution I have used over the past 20+ years is to use a large fan on a pedestal, connected to a timer, set to slowest speed with a moving head, and connected to a timer which runs for 10 mins every hour. My 24 year old motorbike, and 29 year old car have stayed rust free.
I’m in the process too. I wouldn’t say it’s exactly liberating, more mixed feelings, and in fact it’s taking a long time because items do have memories and attachments, but it is necessary when you look at things like books that won’t be read again , CDs that are stored on a Core, pictures in cupboards that won’t hang anywhere again. In some cases it’s cathartic, others not so.
@dingding If it was me, I’d sell the DBLs or use them. I don’t think the sale decision will be easy but the grilles and foam will deteriorate and then nobody will want them.
Now I don’t feel too bad ! I used to have 2 unused pairs, down to a pair now. Think I’ll keep them. I have a lot more unused amps though.
In answering the OPs original question (as opposed to recommending selling immediately or building a new house to house the speakers etc)… I would shrink wrap them - easy to do with the correct plastic and a heat gun. Just be careful with the veneer.
Tempting though that may be, I would be very cautious about attempting to completely seal them. At the very least, put some silica gel inside the wrapping, but even that is likely to be little more than a short term solution and only works if you are certain that you have a 100% airtight seal that is permanent.
I would be more inclined to go for the ventilation option, but controlled ventilation by fitting a permanently running DMEV fan with a humidistat.
Hiwever books do make a house look like a home! That said, I have chucked out quite a lot, and probably will some more when I get round to bookcase contents rather than other books!
Adding to one’s carbon footprint by burning power to preserve some speakers one will never use does seem a little extreme. It’s not like they are a precious artwork. Maybe I’m an outlier here, but it’s only a pair of speakers. Hey ho, each to their own, though to me it makes so much more sense to pass them on to someone who will use them and love them, rather than preserving them in aspic. It’s not as though they are exactly easy to store.
My suggestion of a fan on a timer costs £11 a year, so a possible cheaper solution for consideration
Point taken, but the amount of power these fans use is absolutely tiny. Probably less than an Atom in network standby mode, and there is a cost and energy consumption benefit in reducing mould and mildew accumulation in areas that would otherwise have limited air movement.
It’s definitely given me something to think about, if a pair of SL2 or smaller ATC speakers popped up I would consider them as a replacement. As that way I would still be holding on to their memory so I can wheel them out from time to time and have a blast.
At least for now I’m reassured they are safe and sound where they are. I will probably keep an eye out in case something pops up in the future that’s special enough to consider parting with them, but for now I can’t see the DBLs going anywhere fast.
What has changed to cause you to decide they are mo longer suited to your house?
What is financially poor?
Borassic Lint.
Something of an inheritance/gift. They have been a big influence on my hifi journey as I have know them since new, spending many a long night listening to good music and drinking coffee. Hence why I have quite an attachment to them and don’t really want to see them go. If they went I would like to replace them with something special that I could wheel out time to time that would remind me of them.
Perhaps convert them to bedside tables, or drinks cabinet.
Are you sure? Here’s a post from the ‘Near field listening’ thread: