Reamping is the process of taking a clean recorded instrument signal — usually a direct (DI) guitar or bass track — and sending it back out of your interface, through a real amplifier and speaker, and recording the result again. It lets you record a clean performance once and shape the amp tone later, with full freedom to retry settings without re-playing.
Quick answer
Reamping means: record a clean DI of your guitar, then later play that DI track out of your DAW, convert it back to an instrument-level signal with a reamp box, run it into an amp, mic the amp, and record the new amplified sound. You get a perfect performance plus unlimited tone tweaking after the fact.
Why reamp?
- Commit to the performance, not the tone. Capture the take you love, then chase the amp sound separately.
- Try unlimited amp and mic options without asking the player to perform again.
- Fix tone problems in mixing. If the recorded amp tone does not fit the mix, reamp the clean DI through a better setting.
- Use amps you did not have at tracking time — rent, borrow or revisit later.
This is why many engineers always record a clean DI alongside any amped guitar. It is the same clean-capture idea behind recording guitar without an amp.
How reamping works step by step
- Record a clean DI. Plug your guitar into your interface’s instrument input (or a DI box) and record the dry signal to a track.
- Send the DI back out. Route that track to a spare output on your interface.
- Convert with a reamp box. The line-level output from your interface is too hot and the wrong impedance for an amp input, so a reamp box converts it back to an instrument-level, high-impedance signal.
- Feed the amp. Plug the reamp box output into your amplifier as if it were your guitar.
- Mic and record. Place a mic on the speaker and record the amplified sound to a new track, exactly as in recording electric guitar. The same mic-placement choices covered in recording a guitar amp apply here.
- Repeat as needed. Change amp, settings or mic and run the DI again until it sits right.
Gear you need to reamp
- A clean DI recording of the instrument.
- An audio interface with a spare output. See how to set up an audio interface.
- A reamp box. A passive device that matches level and impedance. The Radial X-Amp (active) and Radial ProRMP (passive) are common examples; some interfaces include a dedicated reamp output.
- An amp, a mic and a treated space. Acoustic basics matter for the mic’d part — see acoustic treatment for home studios.
A reamp box is essentially the reverse of a DI box: a DI box turns an instrument signal into a balanced line signal, while a reamp box turns a line signal back into an instrument-level one the amp expects. Skipping it and plugging a line output straight into an amp usually gives a harsh, mismatched tone.
Understanding the signal flow
Reamping makes far more sense once you picture the levels involved at each stage. A guitar pickup puts out a weak, high-impedance signal measured in millivolts. Your amplifier is built to receive exactly that. The output of your interface, however, runs at line level — many times hotter — and it is electrically balanced and low impedance. Plug that straight into an amp and the front end is overwhelmed: you get a brittle, fizzy, compressed tone with too much top end and none of the touch sensitivity that makes an amp feel alive.
The reamp box sits in the middle and undoes the mismatch. It drops the level back down, raises the impedance to what a pickup would present, and unbalances the signal so the amp’s input behaves normally. In other words, it tricks the amplifier into thinking a guitar is plugged in. Many reamp boxes also include a ground-lift switch, which is your first line of defence against the hum and buzz that can appear once your computer and your amp share the same signal path.
Common reamping mistakes to avoid
- Recording the DI with effects or amp sims printed in. Your DI must be completely dry and clean. If you commit a tone to the recorded track, you lose the freedom that reamping exists to give you. Keep processing on a separate monitoring channel while you track.
- Sending too hot a signal into the reamp box. Start with the DI playback turned down and bring it up gradually. Overdriving the input stage colours the tone before it even reaches the amp and is hard to undo.
- Ignoring ground loops. A faint hum that rises and falls with the amp’s volume usually means a ground loop. Use the reamp box’s ground-lift switch, and where possible run the amp and interface from the same mains outlet.
- Not labelling or aligning takes. Each reamped pass is a fresh recording. Name your tracks clearly and check that the new audio lines up with the original DI so phase and timing stay intact when you blend or comp.
- Forgetting latency compensation. Send and return paths add a little delay. Check your DAW’s timing and nudge or use plugin delay compensation so the reamped track sits exactly with the rest of the session.
Reamping without an amp
You can also “reamp” entirely in software by sending the clean DI through amp-simulation plugins, with no physical amp or reamp box required. This is the most accessible route for home producers: record the DI, then audition amp sims until you find the tone. The recorded clean track is the only essential ingredient.
Reamping in your mix
Because reamping happens after tracking, treat it as part of your mixing decisions. Match the reamped tone to the arrangement, manage levels with good gain staging, and blend the result using the fundamentals in EQ and compression. Explore more in our recording techniques hub.
One powerful approach is to reamp the same DI through two or three different settings — a clean amp, a crunchy amp and a heavier tone, for example — and blend them. Layering reamped passes lets you build a fuller, more controllable guitar sound than any single take, and because the underlying performance is identical, the layers stay perfectly in time with one another.
Frequently asked questions
Do I need a reamp box to reamp?
For reamping through a real amplifier, yes — a reamp box matches the line-level output of your interface to the instrument-level, high-impedance input an amp expects. If you reamp entirely with amp-sim plugins inside your DAW, you do not need one.
What is the difference between a DI box and a reamp box?
They work in opposite directions. A DI box converts a high-impedance instrument signal into a balanced line signal for recording. A reamp box converts a line-level signal from your interface back into an instrument-level signal so it can drive an amp.
Is reamping with plugins as good as using a real amp?
Modern amp-sim plugins are excellent and convenient, and many releases use them. A real amp in a good room can still offer feel and air that some players prefer. Recording a clean DI keeps both doors open, which is the whole point of reamping.
Can I reamp bass and other instruments?
Yes. Bass DIs are commonly reamped through bass amps or different cabinets, and the same DI-first habit you use when recording bass guitar makes this easy. The same idea works for keyboards, synths and even vocals sent through guitar amps for effect. Anything you can capture as a clean DI can be reamped later.
Why does my reamped track sound thin or harsh?
The usual culprit is feeding the amp a line-level signal without a reamp box, which causes the impedance mismatch described above. Check that you are converting the signal properly, lower the playback level into the box, and make sure mic placement and room treatment are helping rather than hurting the captured tone.
