5F6H
1401 posts
Oct 25, 2012
6:31 AM
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What is the speaker impedance load that the amp wants to see? If you don't know, use 330ohms for R2.
5W @ 16ohm Line-out - R1 = 2.2kohms (0.5W minimum), R2 = 220ohms (0.5W minimum).
5W @ 8ohm Line-out - R1 = 2.2kohms (0.5W minimum), R2 = 270ohms (0.5W minimum).
5W @ 4ohm Line-out - R1 = 2.2kohms (0.5W minimum), R2 = 470ohms (0.5W minimum).
R1 runs from the hot speaker wire to the line-out jack socket tip connection. Use a non-shorting jack socket.
R2 bridges the line-out jack socket tip connection, to the line-out jack socket ground/common connection, which also connects to the ground/common speaker wire.
The line-out jack itself does not need to be grounded to the chassis & can be mounted in a back panel, as long as wires are kept out of the way & there is no risk of damaging the resistors.
Premier 50 is rated at 7W but it makes next to no difference.
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Last Edited by on Oct 25, 2012 6:32 AM
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