need advice

You won't do better than those Spendors.

Considering the size room and the 60 watt Onkyo, I definitely agree with Rlwainwright on the Tekton Mini Lore.

The Lores and the Spendors will probably have pretty different sounds. I have heard similar speakers, but not these particular ones. I would guess the Lore is more forward, the Spendor more warm and laid back. Check reviews of each.

Since you are considering used speakers my suggestion is to buy locally since shipping speakers is expensive and, other than turntables, speakers are the most likely item to get broken in shipping. Check local audio outlets, Craiglist, and there is a function here on "my page" that allows you to sort Audiogon ads by locale.

The other benefit is that you will probably be able to hear before buying, and you have given no preferences in your posts. This has led to one gent suggesting a low efficiency mini speaker and the other a high efficiency floor stander. Both are right, because you have given no specifics as to what you are looking for.

That said, the tide has gone out on the 401s and pretty much anything in your price range is going to sound better.....but better to you, who knows?

Buy locally and consider some nice high efficiency speakers like Altec and Klipsh, and some more mainstream speakers, B&W, Paradigm, Snell, etc. If you put in a little time, you will find something that matches your taste and budget. IMHO, for me, a 240 square foot room with high ceilings would require larger, floor standing speakers, but your taste might certainly be otherwise.

I'd also think about Maggie MMGs. Tho not an ideal match for the Onkyo, it's not a complete mismatch, either. Since you do get an in-home trial, I'd give it a shot. It's by far the best I've heard for the $ (app 600 new) tho I've not heard the Tektons recommended above.

Marty