XLN Audio XO 1.8.10 — Mac build

Drum samples pile up fast. You download packs, forget what you have, and end up scrolling endlessly. XLN Audio XO solves that by organizing your one-shots visually and letting you make beats from what you find.

XO (Drum Sample Browser & Beat Maker) — a plugin and standalone app that maps drum samples by similarity, so similar sounds sit together in the XO Space interface.

XO Space — the visual canvas where every sample is a dot; you zoom, pan, and click to audition.

Hot Swap — replace any drum sound in your pattern with a similar one, keeping the groove intact.

Groove Templates — pre-built rhythmic patterns you can apply to your own samples.

Presets — more than 240 editable presets cover kicks, snares, hats, and full kits.

Sample Library — over 8,000 one-shot samples included, so you can start without importing anything.

XO runs as a standalone app or as a plugin in your DAW. Version 1.8.10 fixes MIDI export with muted lanes and includes other minor fixes. If you work with drums, XO is a practical way to find and use what you already own.

How xo compares with other drum sampling tools

XO sits in a specific corner of the drum tool market. Unlike a general-purpose sampler, it doesn't ask you to map samples manually. It does that by analyzing the sound itself. The closest parallels are probably AudioThing Things (which also sorts samples by similarity, though with a different visual approach) and Sononym (a standalone browser that works with any sample type, not just drums).

Sononym is broader — it handles melodic samples and field recordings — but it lacks a built-in sequencer. You find your samples there and then arrange them in your DAW. XO gives you a sequencer, beat presets, and the Accentuator for dynamics, so you can go from browsing to a finished loop inside the same window. Things organizes by similarity but relies on a more traditional browser layout; XO's visual space shows every sample as a point on a map, which makes exploring by ear more immediate.

XO also ships with over 8,000 one-shot samples and more than 240 presets. That library alone is enough to start making beats without importing anything. The other tools expect you to bring your own collection or buy additional content.

Click a dot to hear each sample before dragging

You open XO as a standalone app. The interface shows the XO Space: a cluster of dots, each one a sample. You zoom in on a dense area and click a dot. A kick plays. You click a neighboring dot. A similar kick, slightly different attack. You drag the first dot into the sequencer grid at the bottom. That kick now hits on every quarter note.

You want a snare. You type "snare" into the search field above the space. The view jumps to the snare region. You click a few dots, find one that works, and drag it onto the grid. Repeat for hi-hats. The sequencer now has three lanes. You adjust the pattern by clicking steps on and off.

The groove feels stiff. You open the Groove Templates panel and pick a swung hip-hop template. The hats shift slightly off the grid. Better. You then use the Accentuator to vary the velocity on the snare — every fourth hit lands harder. The loop starts to breathe.

You want a different kick without losing the pattern. You right-click the kick lane and select Hot Swap. The space shifts to show kicks similar to the current one. You pick one. The pattern stays, the sound changes. You export the loop as MIDI and drag it into your DAW, where the same samples load because XO's plugin reads the same library.

Runs on Intel and Apple Silicon without extra services

XO requires macOS 10.13 or later and runs on both Intel and Apple Silicon. It installs from a standard disk image — no extra agents or background services. The standalone mode launches quickly; the plugin version registers under VST, AU, and AAX formats after installation.

The sample library takes up space on your drive, but the disk image includes everything. You do not need an internet connection after the initial install. The interface uses OpenGL for the XO Space view, which is generally fine on modern Macs. If you run an older Intel Mac with integrated graphics, the space view may feel slightly less responsive when zooming through a large sample set, but it remains usable.

Language is English only. There is no localization toggles. Activation is handled by the included patch — no account creation or license server contact.

Color-coded dots can sound different; click before you drag

• Dragging samples without listening first. The dots in XO Space are color-coded by category, but two dots right next to each other can sound noticeably different. Click before you drag.
• Ignoring the search field. Typing "kick" or "rim" jumps the view exactly where you need it. Scrolling manually through a thousand dots wastes time.
• Not using Hot Swap. Beginners often delete a lane and hunt for a replacement from scratch. Hot Swap keeps your pattern and only swaps the sample — much faster for quick A/B comparisons.
• Overlooking Groove Templates. A straight 16th-note pattern sounds robotic. Applying a template adds feel without manual velocity editing.
• Exporting audio when MIDI would work better. Audio export bakes the sound into a file. MIDI export keeps the pattern editable, and since XO's plugin reads the same library, the samples load correctly in your DAW. Export MIDI unless you need a rendered audio clip.
• Forgetting the Accentuator. It adds dynamic variation automatically. A loop with uniform velocity is a telltale sign of a beginner pattern. The Accentuator fixes that in one click.

• macOS 10.13 or later
• Intel or Apple Silicon
• English interface