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UB-1 Micro Portable Analog Synthesizer - Image 1

UB-1 Micro Portable Analog Synthesizer

DesktopAnalogDuophonic

Inspired by the raw analog vibe of Oberheim's Matrix series, this tiny powerhouse packs CEM 3396/3397 chip clones into a form factor smaller than your phone, delivering beefy tones that punch way above its size.

Dual digitally controlled oscillators offer saw, triangle, square waves with PWM, plus a sub-oscillator and noise generator for thick layering, all feeding into a classic 4-pole 24dB low-pass filter. Shape sounds with dedicated envelopes for filter and amplitude, plus two LFOs modulating osc tuning and cutoff; arpeggiator adds three patterns with hold. Hands-on control comes via 16 touch-sensitive keys, six function buttons, and a crisp OLED display, with duophonic playability, 32 presets (expandable via SynthTribe app), mono audio out doubling as headphone jack, TRS MIDI in, and USB-C for power from a bank or phone plus full MIDI CC. At just 1.42 x 5.12 x 3.66 inches, it's built for pockets, desks, or rigs.

Owners call it a "powerful little animal" with solid, gnarly edge that sits perfectly in mixes—great value at under $50, though some note limits like no direct PWM mod and a raw tone distinct from glossier OB-Xa clones.

Released

Unknown

Status

In Production

Synthesizer
Format
Desktop, Micro
Type
Analog
Internal Battery
No
Voice
A/D
Analog
Polyphony
Duophonic
Oscillators
2
Oscillator Type
VCO (Voltage Controlled)
Voices
2
Filter
Yes
Envelopes
2
LFO
2
Effects
No
Expression
Aftertouch
No
Velocity
-
MPE
-
Additional
16 touch-sensitive keys, oscillator sync, 3396/3397 chips, SynthTribe app support
Software
SynthTribe app
I/O
Audio In
-
Audio Out
1 mono
Headphone
1
MIDI
In
MIDI Type
TRS (3.5mm), USB
Ports
USB-C
Wi-Fi
-
Workflow
Arpeggiator
Yes
Sequencer
-
Mod Matrix
-
Memory
32 presets
Measurements
Dimensions
1.42" x 5.12" x 3.66" / 36.1 x 130 x 93 mm
Weight
-
Last updated Feb 25, 2026