Expert Sleepers FH-2 (2018–)
A Eurorack USB MIDI host module and MIDI to CV converter, succeeding the FH-1 with added USB device capability
Overview
The Expert Sleepers FH-2 'factotum' is an 8HP Eurorack module that connects USB/MIDI hardware to a modular synthesizer system. It works as both a USB MIDI host and a USB MIDI device, which is the big change from the FH-1. It was announced as shipping on June 29, 2018. The FH-2 does polyphonic MIDI to CV conversion, including MPE operation. It also has MIDI clock dividers, LFOs and envelope followers. A firmware update released on April 17, 2025, added support for Rev 2 hardware and Select Bus functionality.
Specifications
| Panel width | 8HP |
| Dimensions (W x D) | 8 HP x 48 mm |
| Power requirement | 118 mA at +12 V, 48 mA at -12 V |
| Power requirement | plus the power requirement of any attached USB device |
| Features | Rotary encoder with push button |
Design
The FH-2 packs MIDI to CV conversion, including polyphonic and MPE operation, into one 8HP module. It also handles MIDI clock processing, voice mapping, and USB host/device switching. It bridges digital MIDI gear and analog Eurorack systems.
Context
The FH-2 is the successor to the Expert Sleepers FH-1 USB MIDI host. It adds the ability to operate as a USB MIDI device. It sits at the high end of the modular ecosystem, built for users who need deep integration between computers, MIDI controllers, and modular synths.
Market
Used units have been listed for £190 in excellent condition. Price comparison sites show current new prices starting at $288.55. A new production batch was confirmed to be shipping in early 2026.
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