[Antman27]

Hello all
I am trying to set up my sub using the AV123 Subwoofer Test Tone CD
I first set the sub levels with test tone from my Denon 3805
Next I did what the directions said and set the volume to 60Db with track 1 Pink noise
Next it said I should get SPL reading around 80 db wit track 2-38  16-120 Hz
I am only getting readings from 62 DB to 72 Db
I guess its close to  flat now but should I get more like 80 Db on the spl  like the directions say ?

http://www.av123.com/manuals/testtonecd_v1.pdf

[MaxCast]

what readings are you getting from the other frequencies?
better yet, post your readings.

If you are getting 80db readings at the other frequencies then those (38 and 120) are nulls (room nodes canceling each other out).

what sub are you using?

[Antman27]

Set up is a Denon 3805
SVS SB12+
Velo SMS1
I calabrated the sub to the denons test tones and also the Avia DVD
The AV123 CD is like this
They say set track 1 to 60 Db then all other tones should be about 80DB
16.0Hz
17.0Hz 
18.0Hz
19.0Hz
20.0Hz  62DB
21.2Hz  63DB
22.4Hz  63DB
23.6Hz  64DB
25.0Hz  65DB
26.5Hz  65DB
28.0Hz  65DB
30.0Hz  65DB
31.5Hz  65DB
33.5Hz  71DB
35.5Hz  70DB
37.5Hz  70DB
40.0Hz  70DB
42.5Hz  70DB
45.0Hz  72DB
47.5Hz  72DB
50.0Hz  65DB
53.0Hz  56DB
56.0Hz  71DB
60.0Hz  70DB
63.0Hz  65DB
67.0Hz  64DB
71.0Hz  63DB
75.0Hz  62DB
80.0Hz  61DB
85.0Hz  65DB
90.0Hz  62DB
95.0Hz  60DB
100.0Hz 61DB
106.0Hz 59DB
112.0Hz  55DB
118.0Hz 60DB

[mjosef]

IF you are using the RadioShack SPL meter bear in mind that the current model have a +/- 10dB tolerance... you may need to read this
http://www.audioxpress.com/magsdirx/ax/addenda/media/koya2811.pdf

[MaxCast]

Does either sub have a parametric eq in it?

On the first look it seems you need to turn them down just a bit.
What meter are you using as there are corrections for the lower frequencies.

[Antman27]

I only have one sub FOR NOW next one comes in a few weeks 
The SUb does have EQ but I use the velo for EQ
The Velodyne SMS-1 is the EQ
I am using the old RS SPL not the new one

[MaxCast]

Put your eq at 40 and turn down 10db.  Take a measurement and let us know.

[Bob Reynolds]

You might find the article "Part Three: Getting the Bass Right" by Floyd Toole useful

http://www.harman.com/about_harman/technology_leadership.aspx

[Antman27]

You might find the article "Part Three: Getting the Bass Right" by Floyd Toole useful

http://www.harman.com/about_harman/technology_leadership.aspx

Not sure this is the right link 

[Bob Reynolds]

You might find the article "Part Three: Getting the Bass Right" by Floyd Toole useful

http://www.harman.com/about_harman/technology_leadership.aspx

Not sure this is the right link 

Sorry, it's under the White Papers link. Harman doesn't expose URLs to the individual items.