To fit a turntable in our entertainment center, I needed to add a riser so that when not in use, our turntable would tuck under our Sony soundbar. This is a fairly quick design, but works well. The cups on top fit the feet of the soundbar, and give us about 10mm of space above the lid of the turntable. I've also used this with a Samsung soundbar and found it worked just as well..

Printed with 10% infill is plenty of strength I found for the weight of the soundbar.