Originally Posted by kaigoss69
The FS is 124Hz which is quite normal for a 4. I'm sure you can comfortably play this down to 150Hz as long as you use steep slopes. No need to go lower than that anyway, you'd be fighting the laws of physics. The 300Hz number may stem from the crossover setting of the 3-way crossover where this driver is normally used, and/or the manufacturer is just being over-cautious.
Thanks... its actual frequency response is 100Hz -> 9KHz.