As we have so many Altec junkies here I thought I might share this post from the Steve Hoffman forum.
Altec 604 168x + masterbuilt 620 cabinets [Chicago]
Was asking for $3,400 (I believe he is down to $2400 now)
These speakers look and sound as good as you're hoping. HIGHLY efficient.
Full 8 ohm load (GPA HF diaphragms), Jeff Markwart crossovers and a pair of GPA crossovers (one GPA has a broken trace, easily jumpered). Altec + Mantaray logos. In excellent condition.
Cabinets were constructed by a master cabinet builder named Dale from St. Charles IL. Oak braced, MDF walls. Internally fully covered with a black insulation that's comparable to what airplanes use in to insulate their cockpits. Cherry veneer with Tung oil finish, it's begun to saturate with UV and looks wonderful.
Nice brass binding posts.
Includes custom-made dollies with locking wheels.
Local pickup in Chicago. Not interested in separating the drivers and cabinets. These speakers are surprisingly easy to transport when you remove the woofers and load the cabinets separately. I was able to transport both cabinets in a Toyota Rav 4. (Tight but it fits).
If you don't have 50 posts at SHF you won't be able to access this link https://forums.stevehoffman.tv/threads/altec-604-168x-masterbuilt-620-cabinets-chicago.1126337/