The Helix-4633 has the distinctive styling of the disco era with its black, red, and yellow colors. As you can see it has dual tape decks, two woofers and two tweeters as well as FM, AM SW1 and SW2. The speaker grill cover are different on this particular unit then those I’ve seen on other 4633’s. This unit has the X shaped covers with the Helix brand name in the middle. Others I’ve seen do not have the X grill cover at all.
A fully functional Helix HX-4633 in good cosmetic condition recently sold for $265.00 (9-2019).
