All new Paragraphs already have this upgrade. This upgrade is for units with serial number #2085 and below.
We redesigned the Paragraphs circuit board with the following improvements:
1) Improved signal to noise ratio (less hiss when the filter is open)
2) Higher output level
3) Upgraded potentiometers that make the knobs feel smoother
If you purchase this upgrade -- you will be responsible for all shipping costs to and from our studio in Oakland, California. After we receive your order, we will reach out to you via email to coordinate the details. If you have any questions about this process or the upgrade, please contact us here.