Can I use metallic strings on my charango?
If you have a nylon strings charango, it is recommended that you do not use metallic strings on it because the charango is made to support a tension of maximum 30 kilos and metallic strings can cause a tension of up to 45 kilos causing damage to your charango. If you have a metallic strings charango and wish to switch them to nylon, you can do so. The disadvantage is that charangos made for metallic strings loose the sharpness and sound quality when using nylon strings.