Hi, I own many tonearms, but not all of them come in the original packaging because I bought them used or with the turntable.
For tonearms without packaging, I use wooden boxes that can hold two wine bottles or magnums, depending on the tonearm. I then cover them with expanded polyethylene (it's really soft, like velvet) and add custom-cut bulkheads that I then glue to hold the cable, counterweight, and all the accessories.
I've made many for myself and friends, and I'm preparing this one these days when I have some free time.
The size can accommodate 9" tonearms, but it also accommodates longer 12" tonearms like the Denon DA 308 or Victor UA 7082.
For the Technics EPA 100, a taller box is needed to lay the tonearm, as you can see in some boxes placed at the bottom.
All tonearms are well protected once the box is finished because the box is sturdy and durable and is made of interlocking panels.
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