Here are the things you will need to record your electric guitar at high quality:

* A good quality audio interface. This will allow you to connect your guitar to your PC and record the signal with high fidelity.
* A microphone. This is optional, but it can help you to capture the sound of your amp more accurately.
* A DAW (digital audio workstation). This is the software that you will use to record, edit, and mix your audio. Ardour is a free and open-source DAW that is a good choice for recording guitar.

Here are the steps on how to set up your equipment with Ardour:

1. Install Ardour on your PC.
2. Connect your audio interface to your PC.
3. Connect your guitar to your audio interface.
4. If you are using a microphone, connect it to your audio interface as well.
5. Launch Ardour.
6. Create a new project.
7. Select the audio interface as your input device.
8. Set the input gain to a comfortable level.
9. Start recording.

Here are some additional tips for recording electric guitar:

* Use a good quality guitar cable.
* Position the microphone close to the amp, but not too close.
* Experiment with different microphone positions to find the one that sounds best.
* Use a noise gate to remove any unwanted noise from your recordings.
* Use a compressor to even out the volume of your recordings.

I hope this helps!
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