PA2 is a nice little box designed for quick and easy setup of a speaker system with adjustable crossover, automatic room correction, PEQ and GEQ, delay and gain adjustments, as well as feedback cancellation (notch filters). The box has a reasonably easy, pro-looking interface but the ability to control all its functions from a mobile phone, a tablet, or a Mac or a PC makes it really easy to use. To do this, an ethernet connection to the network is required. List price seems to be $439, but I bought mine 'open box' for less than half that.
This is a 2 analog inputs to 6 analog outputs device. Internally, input is converted to digital, processed through DSP pipeline, and then converted back to analog. All inputs/outputs are balanced on XLR.
Tested with Element24 as DAC and ADC, and REW to capture measurements.
First, no DSP selected, just straight-through ADC/DAC conversion:
1kHz sine-wave @24/96kHz:
Not a bad performance, THD is below -110dB, THD+N at -94dB.
Frequency response (red) and phase:
Distortion vs. Level:
Distortion vs Frequency:
Combination of antialiasing/reconstruction filters (ADC/DAC):
Multitone test:
And J-Test (jitter):
Overall, I find this performance to be quite acceptable for managing speaker output!
This is a 2 analog inputs to 6 analog outputs device. Internally, input is converted to digital, processed through DSP pipeline, and then converted back to analog. All inputs/outputs are balanced on XLR.
Tested with Element24 as DAC and ADC, and REW to capture measurements.
First, no DSP selected, just straight-through ADC/DAC conversion:
1kHz sine-wave @24/96kHz:
Not a bad performance, THD is below -110dB, THD+N at -94dB.
Frequency response (red) and phase:
Distortion vs. Level:
Distortion vs Frequency:
Combination of antialiasing/reconstruction filters (ADC/DAC):
Multitone test:
And J-Test (jitter):
Overall, I find this performance to be quite acceptable for managing speaker output!