Best place to get value on these pieces of equipment and how to find new homes (Roomful)

Except for 13 & 15 everything else is pretty much mid-fi level at best. Look them up for value on eBay and sell on Craigslist.

Ouch, most of the stuff you listed is fairly pedestrian. The SL-150MK2 might be a good sale item. Mostly 50, 100, 200 dollar stuff. 

Thank you both very much! I wasn’t expecting anything really high end so no surprises here. And I’ve always said I wanted those tall Magneplanar speakers and may come to regret my decision, but upon reflection I don’t think I want anything that large. 
 

Upon looking into other things, he had an old Sony Wega Trinitron TV that is supposedly popular with gamers. A couple have sold recently on eBay for $10-20, but several have sold for $400+. NOT that I’m shipping it anywhere, it’s 200 lbs. Also paramedics or the police cut the electrical cord to move the TV out of the way, the night they found him, so I’ll be lucky to find someone who might want it and can replace the electric cord. 
 

Thank you again for your info and suggestions. Much appreciated!

The Advent 300 is a very popular item on eBay. (It also represents a small piece of audio history). Assuming it is fully functional and in good cosmetic condition it could fetch up to $200. If by chance you have the original box/inserts/owner's manual, etc. it might go as high as $300. 

Thank you! He does have most the manuals and remotes for any equipment that came with a remote. He also has a lot of boxes around but I doubt it’s for some of the older equipment. 
 

if I’m planning on setting up a turntable at home, with receiver and speakers, would there be any need for me to keep some of the additional things that I’m not sure what they are, like that Bose equalizer or whatever the Bob Carver thing is?  Appreciate your comments and any suggestions. 

The Bose 901s,check out the woofers, they usually, rod out ,rubber surrounds. 

Limomngus, Not sure I’m comprehending what you are saying. The Bose 901 Active Equalizer I mentioned above is an equalizer, BUT last night when I was trying to get info on the rest of the speaker sets, I realized this little pair by me that Ive been thinking were Advents are actually two Bose 901-II’s. If I knew how to uploads pictures I would.

The list of speakers I compiled last night, does not contain as much info as I like because he had the covers off a lot of them and I couldn't find model numbers for the sets so I couldn’t comp their value.

Here’s what I wrote down in regards to the rest of the speakers:

Quantum 3 Infinity Quantam (sp?) (pair)

Infinity Reference Standard 1.5 (pair)

Advent Loudspeaker A479557

Cambridge Soundworks Henry Kloss Model Six (pair)

JBL HLS Center (pair)

AR-* Acoustic Research (pair)

Advent A479555 (pair)

Advent 5012W (pair)

Bose 901-II (pair) looks like some water stain on front of one

Anyone see anything of special significance in these speakers. I know some of those numbers are probably serial numbers, but it was all I could find on the speaker itself. Would appreciate any thoughts, knowledge…

@owhatathrill 

From what you have listed, there are definitely some speakers with value. Use Google images (IE: Bose 901 Series II) to help determine/confirm what the various models are that you have.

Based on the above the following (if in good physical/operational condition) have value:

Infinity Quantum 3

Advent Loudspeaker(s)

Advent 5012(W) These are a later iteration of the original Advent Loudspeaker and W designates walnut finish.

Bose 901 Series II

eBay is reasonable resource for determining value by entering the model number in the search bar, and once the search populates, scroll down to completed sales to see what a given model has sold for. You can click on the closed listing for product condition information, etc.