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My first foray into active crossovers, so I'm still learning and tweaking the system. So far, I like what I'm hearing. I got measurement graphs as well, so please critique them and let me know what needs improvement.
Drivers: Exodus Anarchy 7" Woofers in parallel, mated with the Dayton Audio RS28F tweeters.
Enclosure: 1.0 cu ft, vented, tuned to 40Hz, with a F3 of 45Hz.
Electronic Crossover: Behringer CX3400.
DIY Amplifiers: Tripath TA2022 (2X100W into 4R), LM4780 in parallel mode (2X120W into 4R).
Crossover frequency: 1,500Hz, 4th order LR (CX3400 default slope).
Measuring Mic: Dayton Audio EMM-6 purchased from Cross Spectrum Labs.
Software: Bassbox and Arta.
Since the CX3400 does not allow any baffle step compensation, I added a full 6dB to the woofer with a 0.9mH inductor and 3.3R resistor (hanging in the back of the box). The CX3400 is quite flexible with gain levels, allowing the user the match the driver levels easily. The overall frequency response of the system is very decent, varying at +- 2.5dB at the most (no smoothing). I also measured the woofers and tweeters separately by muting the appropriate drivers, to determine the correct crossover frequency, since there's no digital display on the Behringer.
Listening impressions: I'm just floored by the power of the Anarchy woofers. Bass is solid, deep and just awesome on my test tracks. No need for a sub here. Soprano voices and instrumental pieces are crisp and detailed. My favorite tweeter has always been the Vifa XT25TG30-04, and the RS28F is not going to change my mind here. On certain tracks, the sibilance of the RS28F can be annoying, and I find myself dialing down the High gain on the CX3400 in a hurry. Could the CX3400 be the cause? I don't know, since this is my first design using this tweeter. Overall, I'm happy with and excited about the newly acquired knowledge, but I'm sure that's just the tip of the iceberg. Thanks for reading.
Hong
Drivers: Exodus Anarchy 7" Woofers in parallel, mated with the Dayton Audio RS28F tweeters.
Enclosure: 1.0 cu ft, vented, tuned to 40Hz, with a F3 of 45Hz.
Electronic Crossover: Behringer CX3400.
DIY Amplifiers: Tripath TA2022 (2X100W into 4R), LM4780 in parallel mode (2X120W into 4R).
Crossover frequency: 1,500Hz, 4th order LR (CX3400 default slope).
Measuring Mic: Dayton Audio EMM-6 purchased from Cross Spectrum Labs.
Software: Bassbox and Arta.
Since the CX3400 does not allow any baffle step compensation, I added a full 6dB to the woofer with a 0.9mH inductor and 3.3R resistor (hanging in the back of the box). The CX3400 is quite flexible with gain levels, allowing the user the match the driver levels easily. The overall frequency response of the system is very decent, varying at +- 2.5dB at the most (no smoothing). I also measured the woofers and tweeters separately by muting the appropriate drivers, to determine the correct crossover frequency, since there's no digital display on the Behringer.
Listening impressions: I'm just floored by the power of the Anarchy woofers. Bass is solid, deep and just awesome on my test tracks. No need for a sub here. Soprano voices and instrumental pieces are crisp and detailed. My favorite tweeter has always been the Vifa XT25TG30-04, and the RS28F is not going to change my mind here. On certain tracks, the sibilance of the RS28F can be annoying, and I find myself dialing down the High gain on the CX3400 in a hurry. Could the CX3400 be the cause? I don't know, since this is my first design using this tweeter. Overall, I'm happy with and excited about the newly acquired knowledge, but I'm sure that's just the tip of the iceberg. Thanks for reading.
Hong
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