看一下著名的zaphaudio网站评价:
HiVi B1S
Cost: $6
Usability: 3颗星
Build Quality: 4颗星
Consistency: 4颗星
Value: 4颗星
Comments: This is a very different driver. Much smaller than the average tweeter, but clearly designed to be used lower in frequency and at lower levels. As such, I've supplied a harmonic distortion curve here, taken at a level 10dB lower than normal. The rear chamber for this is critical, and must be shaped as described here for the best effect: drill a 1-1/4" hole through 3/4" MDF. Then round over the back side with a 1/2" roundover bit. Finally, densly stuff that area with Acousti-stuf and glue another board over it to seal, while allowing holes for the wires to pass though. It took experimentation to get this response, and without it the response curve was terrible.