Dunhuang 694kk and 694pp are both classic styles in Dunhuang guzheng, but they have some subtle differences.

* Material: The side panels of both guzhengs are made of mahogany, but the 694kk uses high-grade rosewood mahogany, while the 694pp uses ordinary mahogany.

* Tone: The timbre of 694kk is crisper and brighter, with high string toughness, while the timbre of 694pp is relatively balanced.

* Price: 694kk is more cost-effective, while the price of 694pp is relatively affordable.

Taken together, if you prefer bright, high-pitched timbre, or pursue higher quality, you can choose Dunhuang 694kk; if you pay more attention to cost-effectiveness and balanced timbre, you can choose Dunhuang 694pp.