[Vintage-Audio] Speaker Connections On LK-48b

[Duane Fischer, W8DBF]

Greetings Fellow Lovers Of Vintage Audio:   	
	
The H. Scott LK-48b stereo amplifier has two terminal strips on the rear for the
speakers to be connected to. These are screw type connectors. They are marked as
"A" and "B", however, the "A" is the left channel and the "B" is the right
channel. Unlike some amplifiers, this amplifier does not have a either/or
speaker system "A" or "B" arrangement. 	
	
Each terminal strip is marked: 4 ohms, 8 ohms, 16 ohms, 0, 0 The zero meaning
ground. Both of the zero screws have identical markings and I am presuming that
both are for negative, or ground. I am further presuming that the impedance of
the speakers being used, 8 ohms in my case, is the positive connection for the
speakers. 	
	
Does anybody out there know for sure? 	
	
Why are there two negative, or ground, screws per speaker?      	
	
The big brother, the LK-72b, has a jumper wire that runs between the selection
of speaker impedance. It has separate positive and negative terminals for each
speaker. 	
	
I am also in need of an owners manual and service manual for the LK-48b, if
anybody knows where I may purchase one. If somebody has them and would make me a
good quality photocopy, I would be glad to pay for the printing and postage
costs. 	
	
Thanks. 	
	
Duane Fischer, W8DBF 	
dfischer@usol.com