OK, I went simple and eliminated all the unnecessary hardware and saved a ton of money and work by going this route. Computer is more accessible and not subject to vibration. Playfield monitor is at steeper angle for better contrast, less reflections and better ergonomics. All electronics in box are sitting on a shelf anchored to floor of box with rubber isolation gromets. Four 11.2 LB garden bricks weigh down cab for stability to improve nudging performance. Real tilt, four Dayton Audio HDN-8 transducers for SSF, contactors for flippers, rotating beacon on bottom and real Stern shaker motor. Arnoz boards and plunger and KL25Z Shield. Computer is a Ryzen 5600X CPU O.C.'d to 4.7GHz, 32GB ram, Radeon RX6700XT. M.2 SSD 4th gen. Playfield display is a 32" 1440p 165Hz LG. The desktop mount holding display is mounted to a wood mount I made which is anchored to 3 wall studs. 15.6"DMD and 32" backbox display are 1080p with wall mounts. Logitech 2.1 audio system with sub on floor. HP Reverb G2 Headset. I own real pins so it wasn't important to me if it looked like a real pin.
If you install transducers for SSF, go with four Dayton Audio HDN-8's powered by two stereo 100w/channel amplifiers. No need for the 2.1 bass shakers. Use a real Stern shaker motor. Fantastic feedback with this setup! Even better than my real pins LOL! The HDN-8's is full range, 50-watt power handling and are 8 ohms. So, you need the two 100w/channel amps (for front and rear) to get the 50 watts for each transducer. But be careful and only set the amps to 3/4 volume max and set bass to a little over half or you can blow them! I did blow one running at full volume/bass. There are two more HDN-8 mounted under shelf on front left and right sides not visible in pic. I also used a pair of SIEMENS 3RH1140-1BB40 40E contactors for the flippers for extra feedback. Also, not visible in pics is a 12v blue rotating beacon with a comet pinball 13SMD Tower Flasher LED (Blue) mounted to underside. Also, strobes on back to light up wall.
** Reason I'm posting this is to show newcomers that you can save a lot of money and a lot of work with this simple design. It looks, feels and plays fantastic! No need for 4K 42-inch display. That will run up costs big time not only for the TV but also for the computer to drive it! OLED's are the only 120Hz native refresh rate TV's available and they are expensive, can suffer from burn-in, and are only 120Hz vs the high 165 to 180Hz possible with this display.
** Not counting VR head set, I have about 3 grand into this whole setup.
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Added 33 days ago:
Update,
Only set the amps to 12:00 (1/2 full volume) and set bass and treble to 1:00. These transducers (exciters) are not hard to blow.