HISTORYWho Is JJ? The History of JJOS
The early betas, the anonymous name, the Akai theories and twenty years of MPC history. Old threads and release notes, with the sources.
CUSTOMMPC.COM // HALLOWEEN 2026 // GRAVE SHIFT
Beat machines, reanimated.
The bench is running after dark. Custom builds, straight comparisons, and a free four-program XPM pack of horror cuts rebuilt for drops, fills and ugly transitions.
16 pads. Full level. You know the layout.
What are you working on?
Learn a workflow, find the right manual, or dig into the machines and people behind the music.
From the bench
HISTORY
VS
MPC Live 2 vs MPC Live 3
Bigger screen, new pads, same battery question. What actually changed, what didn't, and who should keep the Live 2.
GEAR
The best MPC expansions in 2026
Every pack here loads as .XPM programs, not loose WAV folders. Ranked by how fast you get to an actual beat.
BUILD
The custom MPC1000 guide
The most modded MPC ever made. JJOS, pad fixes, screen swaps, CF mods, and what each one really costs, checked against the manual.
Expansion racks
Packs built for the machine, not exported at it. Every rack ships as .XPM programs plus 24-bit WAV one-shots, mapped to the pads, keygroups where it makes sense. Buy once, own the files, no subscription.
Halloween 2026 // free XPM program pack
Grave Shift 001
A four-program XPM pack with 64 blade cuts, metal clashes, horror hits, laughs, creature voices, drones and transitions. Forty stay dry and playable. Twenty-four come rebuilt with tuned subs, reverses, gates, pitch moves and grit.
- 64 one-shots
- 4 mapped XPMs
- 24-bit / 44.1 kHz
- CC0 audio
FREE
Hear it + download
Starter Rack 001
25 original drums and one-shots to test the fit. Costs nothing. Drop your email at checkout and the download is yours.
FREE
Download free
Dust Sector Vol. 1
Drums with the 12-bit crunch baked in. Kicks that sit, snares with real crack, hats that don't fight your sample. All original, all cleared.
$19
Listen + buy
Low End Archive
Bass one-shots and keygroup programs tuned and labeled. Every note tells you what it is before you hit the pad.
$24
Listen + buy
MEMORY: 25 SOUNDS LOADED · AWAITING INPUT
Free kit. Real sounds. No spam.
Starter Rack 001 is free. 25 original drums and one-shots, .XPM mapped, ready in seconds. You leave an email at checkout, we send new packs and articles when they exist. That's the whole deal.
Builder directory
A working list of the people who paint, mod, and repair MPCs is coming. If that's you, get in early.