helix wheely 5000

Hello, I'm writing a book on the history of technology innovation and disruption in the music industry, to be published by Oxford University Press. I would like to include a photo of the largest boombox ever made, the Helix Wheely 5000 a/k/a dynasty-ht959, audioton-tbs9300, elta-6930...

Hi guys. I decided to open up My Helix Wheely 5000 yesterday. I took pictures of the woofers to prove that they indeed are 10". There was alot of talk as to whether which Boomboxes came with factory 10" drivers.