Aviatrix Ultimax
Build
Testing
Paint
Final
Build date
January 2015
About this build
This project was a gift for my best friend. I built the two mains from scratch, assembled the crossovers, painted and assembled the main speakers. I designed and built the ported subwoofer enclosure from scratch. I used BassBox Pro to design the sub enclosure. I was very happy with the outcome. A lesson was learned from the sub enclosure design — I sized the port diameter too small and experienced port noise (chuffing) at full output. Port velocity was not something I knew about at the time of this build.
Parts list
AviaTrix-RST MTM Components Only Speaker Kit Pair Part # Qty Description 091-1245 2 Dayton Audio BPA-38G HD Binding Post Pair Gold 290-218 4 Dayton Audio ND140-8 5-1/4" Aluminum Cone Midbass Driver 8 Ohm 027-432 6 Dayton Audio DMPC-15 15uF 250V Polypropylene Capacitor 027-378 4 500uF 100V Non-Polarized Capacitor 257-658 2 Dayton Audio IC183 3.0mH 18 AWG Laminated Steel I-Core Inductor 257-028 2 Dayton Audio AC20-3 0.30mH 20 AWG Air Core Inductor Coil 004-1 2 Dayton Audio DNR-1.0 1 Ohm 10W Precision Audio Grade Resistor 004-5.6 2 Dayton Audio DNR-5.6 5.6 Ohm 10W Precision Audio Grade Resistor 027-212 2 Dayton Audio PMPC-1.5 1.5uF 250V Precision Audio Capacitor 275-141 2 Dayton Audio RST28F-4 1-1/8" Reference Series Fabric Dome Tweeter 4 Ohm 260-319 2 Acousta-Fill Nylon Polyfill 1 lb. Bag Speaker Cabinet Damping Material Subwoofer 295-710 1 Dayton Audio UMII10-22 10" Ultimax II DVC Subwoofer 300-807 1 Dayton Audio SPA500 500W Subwoofer Plate Amplifier