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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
7,488 posts
 
Doak, Thanks for your comments. Even though I am really only using it on my subwoofers, I am leaning the same way.
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kr4
3,685 posts
 
One issue to be aware of is that the AM2, like other DSPs, introduces a significant delay (even in bypass) which will upset sub/main timing and integration unless you compensate for it.

Kal
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almarg
9,670 posts
 
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.
Ozzy, my anti-virus program (NOD32) gives both the updater file and the firmware file a clean bill of health (downloaded from dspeaker.com), both before and after unzipping the zip-compressed firmware file.

The first item in the description of the June 3 updates sounds like it could possibly be something that would help.

Somewhere within the Norton program it should be possible for you to temporarily disable protection while you perform the download.

I have no experience with any DSPeaker products, btw, but the Dual Core is a product I've been curious about.

Regards,
-- Al
ozzy's avatar
ozzy OP
7,488 posts
 
Thanks for all the posting comments.

Within the next few days I'm going to try another computer that does not have the Norton 360 installed to see if I can complete the DSPeaker update.

Also, it should be noted that the DSPeaker is connected to the output of my QOL unit not the Preamp as I previously posted.

Now, that may make a difference because the QOL uses the out of phase information. I believe the DSPeaker sums the subwoofer outputs into a dual mono output.
So, this week end I will use the Preamp outputs to the DSPeaker and see if that changes anything.
ozzy's avatar
ozzy OP
7,488 posts
 
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.
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