SONY Home Theater DAV-DX150 With 5 speakers No Remote

So I hooked this up and here is what I know. The surround right and surround left speakers seem sort of quiet, but everything else seems to be working fine, sounds good, and no broken pieces or wires (all wires are included.) Im not entirely an expert sp this could be a simple thing I dont understand. But unit does work and sound good overall pther than the quiet surround left/right speakers.

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