Echo Mountain Audio JBL 4425 - Appendix B: Performance Measurement

14
Appendix B: Measured Frequency Response
Measured response for the 4425 factory crossover (orange curves) and the Echo Mountain
Charge-Coupled Crossover (blue curves) was obtained using 8 ohm dummy loads with an RME
ADI-2 Pro FS R BE audio interface and REW software.
-40
-35
-30
-25
-20
-15
-10
-5
0
20 200 2000 20000
Magnitude (dB)
Frequency (Hz)
Model 4425 Crossover
Stock (Orange) vs. Echo Mountain Charge-Coupled Equivalent (Blue)
Both L-Pads at Max