XO

XO is XLN Audio's drum sampler, and its defining idea is visual. Instead of scrolling through folders, you see every one-shot plotted as a dot inside the Genius Space, where similar sounds cluster together. Kicks land near kicks, hats near hats, and texture near texture. This turns sound selection into exploration, and it is genuinely one of the fastest ways to audition and swap drum sounds in any plugin.

The core strength is curation. XO ships with more than 8700 one-shots and 240-plus editable beat presets, and the analysis engine also maps your own sample library into the same space. That means a decade of scattered downloads suddenly becomes browsable by character rather than filename. Drop in a groove, and XO can suggest complementary sounds, generate variations, and rebuild kits on the fly. For producers who stall on decision fatigue, it is a real workflow unlock.

The built-in step sequencer, per-slot effects, and drag-out-to-DAW export make it a complete sketchpad, not just a browser. It excels at hip-hop, trap, house, and electronic beats where punchy layered one-shots matter more than realistic dynamics.

The trade-offs are honest. XO is a one-shot engine, so it is not a true multisampled instrument the way Battery 4 is, and it has none of the tonal or bass-instrument focus of MODO Bass 2 or EZbass. The install is large, setup needs an internet connection, and the workflow leans on XLN's own expansions and ecosystem. Deep programmers may find the closed, curated approach limiting.

At its regular price of around 149 EUR (frequently discounted), XO offers strong value for its library size and its unique browsing engine. Choose it if you want inspiration and speed in building drum patterns. Look elsewhere if you need granular multisample control or acoustic realism. Producers can grab it and its sample-pack companions through Plugin Boutique.