XBase 09 Midi Controlled Analogue Drum Module © 1997 JoMoX.
The XBase 09 is a specialized, MIDI-controlled analog drum machine designed to replicate and modernize the classic punch of vintage step-sequenced drum modules. It was built specifically to cater to the exploding 1990s electronic music scene—particularly techno, house, and acid.
The architecture of the XBase 09 features three distinct drum channels: Kick, Snare, and Hi-Hat. The Kick Drum and Snare Drum paths are fully analog, utilizing discrete circuitry rather than integrated chips to deliver an incredibly deep, aggressive low-end and a snappy mid-range. The Hi-Hat channel uses a hybrid design, combining analog envelopes and VCFs (Voltage Controlled Filters) with 8-bit digital samples of classic metallic instruments to replicate open and closed hats.
Equipped with a classic 16-step sequencer, the XBase 09 allows for real-time parameter changes to be recorded directly into the pattern via its dedicated control knobs. Every rotary knob on the front panel transmits and receives MIDI Continuous Controllers (CC), making it an exceptionally flexible studio tool for automated mixing and external sequencing.
The Roland Challenger: The XBase 09 was directly designed as a modern, affordable alternative to the legendary Roland TR-909, which had reached exorbitant prices on the secondhand market by the late '90s.
Sample Shifting: While the machine came factory-loaded with standard 909-style 8-bit hi-hat samples, advanced users discovered they could burn custom EPROMs with their own raw samples to completely change the character of the digital/analog hybrid channels.
LFO on a Drum? Uniquely for drum machines of its era, the XBase 09 features two built-in LFOs (Low-Frequency Oscillators) that can be routed to modulate parameters like the pitch of the bass drum or the filter cutoff of the snare, allowing for evolving, organic drum loops.
The "Lofi" SE Edition: Due to its massive underground success, Jomox later released a limited "Special Edition" (SE) of the hardware, which sported a sleek faceplate design, updated firmware with an improved shuffle engine, and a modified noise generator for even more aggressive snare tones.