Morning, afternoon, or evening to you.

Amp came in to workshop with fuses blown of R channel power supply, replaced bridge rectifier and all appears well.

During testing I measured output @ 65 watts for each side into 8 ohm resistive load @ 1kHz running stereo mode no problems.

However, only measuring 18 watts in bridge mode with mains current draw > 2 A. The sine wave input, when measuring over dummy load, looks squared on the bottom.

Never worked with bridge mode amps before, but if I'm getting 65 watts per side in stereo that must place the tangle somewhere in the input stage right?

rotel_rb-870_sm.pdf

Chur

Amp came in to workshop with fuses blown of R channel power supply, replaced bridge rectifier and all appears well.

During testing I measured output @ 65 watts for each side into 8 ohm resistive load @ 1kHz running stereo mode no problems.

However, only measuring 18 watts in bridge mode with mains current draw > 2 A. The sine wave input, when measuring over dummy load, looks squared on the bottom.

Never worked with bridge mode amps before, but if I'm getting 65 watts per side in stereo that must place the tangle somewhere in the input stage right?

rotel_rb-870_sm.pdf

Chur

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