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DSPeaker Anti Mode 2.0 evaluation

I have read all of the glowing reviews of this product and I just don't understand why I am not impressed. I have been lucky to find a very kind dealer to allow me to try one the DSPeaker Anti Mode 2.0 units.
I have 2 JL Audio F113 subwoofers that I have set up in stereo and are based on their own microphones measurement calibration.

So, with those sub settings and then switching out the LF Filter, I then used the DSPeaker unit to eq just my JL subs. That is, I tested the unit by playing my Andra 2 speakers full range via my Pass Labs Preamp and Amp and with the other Preamp outputs I plugged in the DSPeaker in and then the JL subs are plugged into the DSPeaker.

I ran the DSPeaker calibration. I used the DSPeaker in and out of the flow by using its bypass button and I really couldn’t tell much of any improvement. In fact I believe I like the bypass sound better.

Why is this? All of the glowing reviews and it is only marginal different if at all.

Now, there is an update for the DSPeaker in June 2013 but my Norton Virus control will not allow the download. Perhaps, if I was able to download that update it would be better, but I doubt it.

So, before I end my trial of the unit, is my configuration flawed , what do you guys think?
128x128ozzy
ozzy's avatar
ozzy OP
7,456 posts
 
The best way to use the DSPeaker in my system is to place it after the BSG QOL unit utilizing one of the OOL 2 outputs. The first output goes to my main Pass Labs Amp. And the other QOL output goes to the input of the DSPeaker and the output of the DSPeaker to my JL Audio F113 subs.

I calibrated the system by setting the DSPeaker to 2.0 and running a Toslink cable into my Dac.
This way only the JL Audio subs are calibrated to fit in nicely with my main speakers.
kr4's avatar
kr4
3,677 posts
 
Ozzy-

I have never used the QOL but I should point out that, hooked up as you have it, the AM 2.0 will introduce a latency (delay)into the subs and that is likely to screw up some of the vaunted phase corrections of the QOL.
ozzy's avatar
ozzy OP
7,456 posts
 
Kr4, Thanks for the reply. The Qol has 2 Balanced outputs. Only the sub information is coming out of the DSPeaker analog XLR output. The QOL output is still sending the same signal to the Pass Amp.
It sounds really good to me, the best bass i have heard, but I am always willing to experiment.
Please advise.
kr4's avatar
kr4
3,677 posts
 
I have no doubt that both outputs are OK. However, the sub output will be delayed by about 10-20msecs which represents a phase shift between the subs and the main speakers. In the frequency range where they overlap, the phase shift might be a problem. It can be detected and/or corrected with ancillary equipment...........if you care.
ozzy's avatar
ozzy OP
7,456 posts
 
Kr4, But would not the calibrating with DSPeaker reduce any overlap?
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