Re: Converting Magnepan 1.7 planars to a DSP Crossover
Posted: March 28th, 2024, 8:35 pm
WOOHOO! 
They are playing music, just without the super tweeters!
Since one super tweeter foil element is open circuit, did the DSP crossover to run as we 3-way adding the servo subs. The tweeter run 400Hz to 20KHz. Also added time alignment for the 3 planars and main panels to subs to finish it up.
Also figured out both the servo amp and the Class D amps are inverting polarity. The dspNexus 2x8 has an inverter for inputs, so just used the inverted USB setting. All drivers now in the same polarity.
First song, RUSH : 2112, that sounded very good!
They are playing music, just without the super tweeters!
Since one super tweeter foil element is open circuit, did the DSP crossover to run as we 3-way adding the servo subs. The tweeter run 400Hz to 20KHz. Also added time alignment for the 3 planars and main panels to subs to finish it up.
Also figured out both the servo amp and the Class D amps are inverting polarity. The dspNexus 2x8 has an inverter for inputs, so just used the inverted USB setting. All drivers now in the same polarity.
First song, RUSH : 2112, that sounded very good!