Choose a two-input USB audio interface if you are recording only the synthesiser’s left and right outputs to a computer. A compact USB mixer makes more sense when you also need hands-on control or inputs for other sources; a recorder-mixer is worth considering when separate tracks or recording without relying solely on the laptop matter. Check that the chosen inputs accept line-level signals and whether its USB connection records a stereo mix or individual sources.
If the synth is your only source, two line-capable inputs let you connect its left and right outputs to a computer without carrying a larger desk. Focusrite describes the Scarlett 2i2 4th Generation’s two line inputs as suitable for synths and keys.
If you also need to adjust a hall PA feed or connect a microphone or another keyboard, a compact USB mixer gives you physical controls and more input options. Yamaha and Soundcraft describe these facilities on their MG10XU and Notepad-8FX mixers respectively.
If several sources need separate tracks, or you want a recording path that does not depend solely on a laptop, consider a recorder-mixer. Zoom documents separate-track SD-card recording for the LiveTrak L-8.
Start with the sources you must record at the same time, then decide whether you need physical mixing controls or separate tracks after the session. Two analogue inputs, a two-channel USB feed and multitrack recording answer different needs.
Choose it when: A laptop will record the stereo synth and you do not need to mix other hall sources.
Trade-off: Its two inputs and limited physical mixing controls leave little room for an added microphone or instrument.
Choose it when: You need to set levels at the desk while connecting the synth and other sources.
Trade-off: Yamaha specifies a 2-in/2-out USB path for the MG10XU; do not assume each connected source becomes a separate computer track.
Choose it when: Separate tracks or an SD-card recording path justify a more involved setup.
Trade-off: Extra routing and recording options add setup decisions that a lone stereo synth may not require.
| Concern | What to check | Who this matters to |
|---|---|---|
| Preserving stereo | Confirm two independently usable line-level inputs and that your recording software can capture the synth’s left and right outputs separately. | If I use both synth outputs, I want to keep the left and right signals rather than record only one side. Around 31% of consumers put preserving the stereo pair first. |
| Live control and extra sources | Count the inputs needed for the synth and any microphone or other source; check the headphone and main-output connections. | When other sources join the hall session, I need to adjust their levels at the desk. For around 31% of consumers, live control and expansion are the primary concern. |
| Separate tracks and recording options | Check whether the unit records separate tracks to SD card and whether computer and SD recording can run together. | For a session that would be difficult to repeat, I want the option to edit sources separately or record without depending solely on the laptop. Around 23% of consumers prioritise those recording options. |
| Simple computer setup | Check computer compatibility, USB power requirements, headphone monitoring and the connections needed at the hall. | If I am recording one synth to a laptop, I would rather carry and set up fewer controls. Keeping the computer setup simple comes first for around 15% of consumers. |
A single mono input cannot capture the synth’s left and right outputs as a stereo pair. Focusrite documents two line-capable inputs on the Scarlett 2i2 4th Generation, illustrating what to look for in a two-input setup.
Check your synth’s output connectors and the device’s two input connections before choosing cables or ordering the unit.
Yamaha specifies 2-in/2-out USB audio for the MG10XU, while Zoom documents separate-track SD recording for the LiveTrak L-8. Those are different ways to capture a session.
If you will need to rebalance the synth, microphones and other sources later, confirm the model’s multitrack workflow. If a stereo mix is enough, make a test recording with your intended levels.
Once several sources have been combined in a stereo recording, correcting one source’s level independently may require another take.
Additional recording modes bring routing and storage decisions even when the session has only one stereo source.
Choose the simpler two-input route if it meets the recording plan; move to a mixer or recorder-mixer when extra sources, live controls or a separate recording path answer a specific need.
Equipment choice does not establish what amplified music the venue permits. GOV.UK says music-entertainment licensing depends on the circumstances of the event.
Ask the hall about its booking conditions, amplified-sound arrangements and any sound limiter before planning a PA setup. Keep the recording plan workable without assuming that loud playback is permitted.
Focusrite’s Scarlett 2i2 4th Generation represents the compact two-input interface route for a synth recorded to a computer.
Yamaha’s MG10XU represents the compact analogue-mixer route when the hall setup needs more connected sources and physical level controls.
Soundcraft’s Notepad-8FX is a small-format analogue mixer with USB I/O for buyers who want controls at the desk.
Zoom’s LiveTrak L-8 represents the recorder-mixer route for sessions involving more sources or separate-track recording.
Yes, if both of the synth’s outputs connect to separate line-capable inputs and your software records them as a stereo pair or two mono tracks. Focusrite documents two front-panel line/instrument inputs on the Scarlett 2i2 4th Generation; check the connectors and recording settings for your own setup.
No: a 2-in/2-out USB specification does not establish a separate recording track for every analogue mixer channel. Yamaha specifies that USB configuration for the MG10XU; if individual source tracks matter, check for an explicit multitrack workflow, such as the separate-track SD recording Zoom documents for the LiveTrak L-8.
Whether authorisation is needed depends on the event and venue circumstances, not on the recording equipment alone. GOV.UK advises that music-entertainment licensing is circumstance-dependent. Check the hall’s booking conditions and existing permissions, and ask the venue operator or local licensing authority about your planned event if needed.
Plan the speaker setup around the venue’s conditions and the people in the room, rather than using recording levels to decide how loudly to play. Ask about any sound limiter and speaker-placement rules, and assess audience exposure separately from the signal sent to the recorder. The Health and Safety Executive provides event-noise guidance for organisers.