Along with the D1 drum machine shown off at NAMM, Donner has demonstrated its B1 analog bass synthesizer/sequencer. This compact unit features twenty-six rectangular touch keys arranged in a standard keyboard pattern, plus a 3×5 matrix of buttons for controlling various elements of the performance or sequencing, and then a row of knobs along the top for adjusting sound elements such as cutoff, resonance, envelope and so on.
There are sync in and sync out sockets plus aux in and headphone out. Also a small OLED screen for basic settings information.

Although this touts itself as a bass synth, it looks to be a capable general sequencer and performance tool, as it has 128 user-programmable presets, MIDI and multi-device connection support.
It may not be the most feature rich device ever launched but at around $290 and with some decent capabilities it may be worth a look.
Specifications
SIZE AND WEIGHT
- 12.8 x 5.12 x 2.2 inches
- 1.37 pounds
CONNECTORS
- USB-C
- Line output1/4′ TRS
- 3.5mm TRS
- USB 2.0,Type C
- MIDI In & MIDI Out, 5-pin IN
- AUX inmaximum input +5 dBu
- Sync inMore than 2.5V
CONTROL KNOBS
- SATURATION knob
- DRIVE knob
- TONE knob
- DELAY knob
- LEVEL knob
- TIME knob
- FEEDBACK knob
CONTROL BUTTONS
- UP and DOWN
- TRANSPOSE
- PATTERN
- TEMPO/TAP
- PLAY/STOP
- CLEAR
- WRITE
- BAR
- SIGNATURE
- DOTTED
DISPLAY
- ScreenOLED
POWER ADAPTOR
- 9VDC 500mA inner positive
Check the product page for more details.