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2,136 Posts
Discussion Starter · #1 ·
ok as far as i understand 4B is single ended ( speaker is between phase and ground )

7B and 28B is balanced push pull mono ( speaker is between +phase and -phase )

and 14B is balanced push pull stereo ( two 7B units in one chassis )

but i am not sure i believe that. i want to see the picture of the inside of 14B and see two 7B amplifiers sitting in there !

is 14B really push pull in the same way as 7B and 28B ?
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