I have a record player (it's a cd, cassette, radio and record player combo) with built in speakers. So it should have a amp right? I have it hooked up to external speakers (with rca cables) that have a pre-amp. On the back of the external speaker is a line/phono switch. When it's switched to line everything sounds good but the only thing is when playing a record it's high pitched? Lots of treble and no bass? I flip the external speaker switch to phono amd the volume is louder with bass and sounds good except for the massive amount of static. While in phono the static is the same even with radio and cd. The rca outpit in the back deffinitely says output.