Japanese 3DS sales hit 384,000 units in August, 2.6 times the system's July total.
That's according to figures from Enterbrain (via Andriasang), which pegs August as the second-best month on record for 3DS, the console having sold 430,000 units in March following its late-February launch.
The portable has topped Japan's weekly hardware sales chart since its price was reduced from 25,000 to 15,000 on August 11.
Nintendo is to hold a "3DS new product announcement conference" on September 13 ahead of the Tokyo Game Show.