Well I was able to connect the DSPeaker direct to my Preamp. I still cannot detect any improvement using the DSPeaker calibration setting over just using the calibration from the JL Audio microphone.
Viewing the DSPeaker calibration graphs the correction is very minor except for a peak around 90-100 Hz. However, when in use the JL Audio Subs are crossed over at about 55 Hz so that peak would not matter.
Hopefully, once I try a different computer without the Norton protection I'll be able to download the latest June 2013 update there will be improvement.
Otherwise, the JL Audio Sub calibration appears to be pretty right on, making the DSPeaker irrelevant.
Viewing the DSPeaker calibration graphs the correction is very minor except for a peak around 90-100 Hz. However, when in use the JL Audio Subs are crossed over at about 55 Hz so that peak would not matter.
Hopefully, once I try a different computer without the Norton protection I'll be able to download the latest June 2013 update there will be improvement.
Otherwise, the JL Audio Sub calibration appears to be pretty right on, making the DSPeaker irrelevant.