I need driver update to connect with pre sonus artist one software

Like your Yamaha midi needs drivers.
https://www.solvusoft.com/en/update/drivers/music-keyboard/casio/privia/px-120/model-numbers/

I assume you have the neutron connected to the computer via a USB cable. Right? What kind of cable are you using between the neutron and the workstation? Will the neutron play midi coming from the computer? Does it interface with Band in the Box or a software sequencer (Logic,etc)?

The Pre Out and PWR In for a method to insert an effects loop. The output signal from the Pre Out should be line level so you would not connect this to our microphone input on the PA, but preferably to a Line Level input otherwise you would overdrive the PA's input. When you connect the Pre Out, the 1/4" jack may interrupt the signal so you may lose output to the Champion's amplifier/speaker. If this happens, you need to have a return line with the same line level signal plugged into the AMP In to get your sound back on the amplifier itself.

Not sure what your issue is, as long as you have the ASIO drivers installed you'll be able to get a decent copy of the main mix into and out of presonus. Even if not the standard windows sound drivers will recognise it as an external sound card and you can map this into / out of presonus so you don't actually need ANY drivers other than standard windows ones. If you were hoping to get access to the individual channels to do the mix in presonus forget it, this is not what what your mixer is designed for, get an X32 or other professional mixer.

Download USB MIDI driver for yamaha from yamaha website,and install to laptop.
Next:
Make sure the POWER switch on the instrument is set to OFF,then use an AB type USB cable to connect the instrument to the laptop.
After making the connections, turn on the power of the instrument.
Laptop will immediately notify that new hardwares is connecting and automatically install the drivers. Wait until the process is finish.
Thats all. In Ableton,the setting MIDI input must be set to USB MIDI.

PRE OUT/PWR IN - (1) Effects Loop - Connect PRE OUT to an effects device input, then connect the effects device output to PWR IN. (2) Multiple Amps - Connect the primary unit's PRE OUT to the auxiliary unit's PWR IN. The primary unit is used to control all auxiliary units. (3) Recording or Reinforcement - Connect PRE OUT to sound equipment's input. Both jacks use a TS (Tip-Sleeve) standard type plug for connections. PRE OUT includes onboard tone shaping.

No special drivers are needed for Windows 98SE/ME/2000/XP/Vista and Apple OS9.1/OSX.

In order for this to work properly it must be inserted between the last pre-amp stage and the power amp. Can you please update this with the mixer that you are using? With the make and model of the mixer, I can provide you with a connection description. Since each mixer will have different labeling and options, it is not possible for me to accurately describe the connections without hte make and model.

Thanks,
Dan

It sounds like you have NOT connected via the recording software.
It is like the normal Windows software audio has hijacked the audio system even though it is external.

Go into your recording software and look for an option to select the Lexicon device. You did not tell us what recording software you are using.

This is not an uncommon problem with these external audio recording devices.

The keyboard should stand alone and NOT require any driver. Drivers are for PC's,

Now if you are trying to connect the keyboard to a PC, then that is a different story. You did not mention that.

For tying a keyboard into a PC there are both USB and MIDI connections. You haven't mentioned using either.

When talking to a keyboard you will need music editing software, not a driver. That software you purchase SHOULD have what you need as part of it. There are also editors for the parameters in the keyboard. MOST of that software has to be purchased, although you sometimes can find shareware. Some can be quite expensive.