thobert

I did some additional testing and here is what I found. My main use case for the keyboard is for home recording where I want to record the audio from the keyboard through my audio interface, to my DAW as an audio track, and monitor the DAW back out through my audio interface with my studio monitors or headphones connected to the audio interface. (Incidentally, I don't need any help with the keyboard as a MIDI controller...that works fine...so I'm really just talking about that specific audio output use case.) The line out does in fact work: 1) plug in a random mini plug into the headphone jacks in the front of the unit to kill the onboard speakers 2) turn the keyboard volume to max...yes max...see point 3 3) I eke out an audio signal in my DAW. Below is the meter with the volume maxed and with me hammering on the keys at max velocity. Workable, yes, but given the pro-audio +4 dBu specifications of the Line Out, just doesn't seem right. I don't have the equipment to verify the 1.3 Volt MAX RMS output of the line outs, so I'll leave it at that. If I ever need a stronger signal, I might just end up using the Microphone out and not the Line out. To answer funkycornwall's specific question, I see no increase or decrease on the Line Out strength from plugging in (or unplugging) my random mini plug to disable the onboard speakers. Thanks all for your suggestions!

Indeed as Brad states, the PX-S3000 appears to lack the ability to disable the onboard speakers without plugging in headphones. This presents problem in the follow scenarios: - gigging where you want the sound to only come from the live sound system - home recording where you want to record the audio from the keyboard to you DAW and monitor your DAW through your studio monitors...imaging the issues with accompanying a vocalist in a home studio in that scenario. The work arounds for the above seems to be: - to use the Headphone mini plug in front (and not the 1/4" pro audio line out) as the source of the audio signal - Use the line out for the audio signal AND plug in headphones if only to kill the onboard speakers But we are getting ahead of ourselves...I still can't confirm that the line out is even working on my 3 day old keyboard. LOL.

I did an a little addition research and found that the line out audio specifications for the keyboard indicates a standard "pro-audio" 1.3 V RMS output. I can safely say that this keyboard is not producing a line out audio signal of that strength. Line levels and their approximate nominal voltage levels Use Nominal level Nominal level, VRMS Peak amplitude, VPK Peak-to-peak amplitude, VPP Professional audio +4 dBu 1.228 1.736 3.472 Consumer audio −10 dBV 0.316 0.447 0.894 I also found that, although there was a function to enable/disable the onboard speakers when headphones are plugged into the microphone jacks up front, there is no such function to enable/disable the onboard speakers when using a line output to an external amp.

Thanks Brad. Pleasure to be here. The TS cables and the audio interface (Steinberg UR242) line inputs are proven to work. I just tested with my Yamaha MX49. To conclude: Yamaha MX49 line out -> TR cables -> UR242 line in -> powered studio monitors = sound PX S3000 -> same TR cables -> same UR242 line in -> same powered studio monitors = no sound The headphone jack in the front of the unit does what I expect: plugging in headphones disables the onboard speakers and produces a headphone amped output that is controllable by the keyboard volume control. I'm expecting the line-outs to disable the onboard speakers and produce a line-level output NOT controllable by the keyboard volume control. Disabling the onboard speakers aside, I can not detect any audio output from the line-outs at any level of keyboard volume control.

Hi all - this may be an issue with me being a nube, but I can't get the line out to work. Here is the situation: - keyboard 1/4" TR line out connected to 1/4" TRS line in to a Steinberg audio interface by means of a standard TR "guitar" cable - have also tried TRS cables to no avail - have also tried TR and TRS cables to powered studio monitors line input to no avail. Is this an issue with TR to TRS or is my keyboard actually not producing audio line out? Have had the keyboard two days and have not touched the factory presents. The keyboard plays fine through the built-in speakers and through the headphone jacks up front, but want the line outs to go to audio interface.