Page 3
6.5" On Axis Frequency Response
The Drivers
Included in your kit are two each of the 6-1/2" Dayton Audio woofer and the Dayton Audio 1-1/8" silk dome tweeter.
Both units are good candidates for this project. The woofer incorporates a treated paper cone, coupled to a rubber
surround. The response is generally well behaved, but does exhibit a peak centered around 3.3KHz.
The Dayton Audio 1-1/8" silk dome tweeter is hands down one of the finest tweeters available in it's price range! The
response exhibits some peakiness, and the driver seems to have a ‘wandering’ Fs, but the sound is on a par with
tweeters that cost far more.
6.5" Impedance Sweep
The impedance is smooth, but due to the rather large amount of voice coil inductance, commonly known as a driver's
L(e) rises sharply. Note in the 2KHz area, where this driver will be crossed over, the impedance is 25 ohms. For this
reason, an impedance compensation network will be used, commonly known as a “Zobel Network”.
