[Vintage-Audio] Update On AR-4 Info

[Duane Fischer, W8DBF]

Hi All, 	

	Ok, the old blind wonder dude got into the adventurous mood and took a serious
squint at the AR-4's. The grill is held in place by six staples, three down each
side. The staple is long enough to go through the grill material, the wood panel
behind it and still hit the main wood of the cabinet. I can not state that this
is factory, but it certainly appears that way. 	
	
When the cabinet is vertical, looking at it from the back, with two speaker
terminals vertical top to bottom and tweeter pot control just to their right,
the top terminal is negative and the bottom one is positive. 	
	
Question: the suspension around the edge of the woofer speaker cone, what is it?
Is it supposed to be somewhat soft? 	
	
FYI: I guessed the polarity right by ear. I tested it today with a battery to be
sure. 	
	
Thanks. 	
	
Duane W8DBF