So this is the JBL Partybox 330, and this speaker is here much sooner than I expected. Now the JBL Partybox 330 does have some meaningful upgrades… but it also has some changes that I don’t like so much. But regardless, the JBL Partybox 330 is still one of the best large box speakers that you can get and you can’t go wrong with this speaker. So lets see what the JBL Partybox 330 is all about and lets see if its worth upgrading if you already have the JBL Partybox 320 or the JBL Partybox 310.