A reamp box takes a recorded clean guitar (or bass) signal from your interface and converts it back into something a real amp or pedal expects to see, so you can run a finished DI track through physical gear. Do you need one? Only if you record a dry DI and want to send it back out to hardware later. If you stay entirely in the box with amp sims, you don’t. This guide explains exactly when it’s worth it.
What reamping actually is
Reamping is recording your guitar as a clean DI first, then later playing that recorded signal back out through an amp, pedals, or other hardware and re-recording the result. It lets you nail the performance once, then audition and capture different tones afterwards without replaying a note. It’s the reverse of a DI box: a DI box turns a guitar into a recordable signal, while a reamp box turns a recorded signal back into a guitar-level, high-impedance feed an amp likes.
Why the box matters
You can’t just run a line output straight into a guitar amp and expect it to sound right. The levels and impedance are wrong: your interface puts out a balanced, low-impedance line signal, but an amp input wants an unbalanced, high-impedance, instrument-level signal. A reamp box does that conversion — matching impedance and level, and providing a ground lift to stop hum. Without it, you’ll get level mismatches and noise.
When you need a reamp box
- You record DI and process later. If you capture clean DIs and want to run them through your real amp or pedalboard, a reamp box is the clean way to do it.
- You want to re-track tones without re-playing. Perfect for committing a great take, then experimenting with amps and mics afterwards.
- You blend real and virtual tones. Some players reamp through a real amp for one layer and use an amp sim for another.
When you don’t need one
- You only use amp sims. If your tones come from plugins like Neural DSP, Amplitube, or free amp sims, you reamp entirely inside the DAW — no hardware box required. Just record a DI and load a different amp sim on it whenever you like.
- You commit your amp tone while tracking. If you mic a cab and print the tone, there’s nothing to reamp.
- Your interface or modeler has reamp outputs. Some units, like the IK Multimedia AXE I/O and various multi-effects pedals, include a dedicated reamp output that does the job for you.
How to reamp at home
The basic workflow:
- Record a clean DI. Plug into your interface’s instrument input and record the dry guitar. It helps to record this alongside your monitoring tone so you can play in time. See how to record a clean bass DI — the same approach works for guitar.
- Route the DI to a spare output. Send the recorded DI track to a balanced line output on your interface.
- Feed it through the reamp box. The box converts the signal to instrument level and impedance.
- Run into your amp or pedals, then mic the cab or capture the result on a fresh track.
For the all-software version, you skip the hardware entirely: just record the DI, then drop an amp sim on the track and audition tones freely. Our guides on using amp sims and setting up a home guitar recording rig cover this in depth.
The bottom line
Buy a reamp box if you record clean DIs and want to send them through real amps or pedals — it’s the proper, quiet way to do it. Skip it if you work entirely with amp sims, since plugins let you reamp in the box for free. Either way, the smartest habit is to always record a clean DI: it costs nothing and keeps every option open.
Frequently asked questions
Can I reamp without a reamp box?
Inside the box, yes — record a DI and load any amp sim on it to change tones freely. To reamp through real hardware, you need a reamp box (or a unit with a reamp output) to match level and impedance, otherwise the signal will be wrong and noisy.
Is a reamp box the same as a DI box?
No, they work in opposite directions. A DI box turns a guitar into a recordable signal for your interface. A reamp box turns a recorded signal back into a guitar-level feed for an amp. Some product ranges sell matched DI and reamp units.
Should I always record a clean DI?
Yes, it’s a great habit. A clean DI lets you reamp later, swap amp sims, fix tone choices after the fact, and re-track without replaying. It costs nothing extra and saves you whenever a tone decision changes.
