[Elecraft] K-3 Noisy Receiver?

[RLVZ at aol.com]

Interesting data but what am I missing here?  "Note the K3 audio  amplifier 
is the cleanest hands down".  Looking at the data below, doesn't  it show 
that in the 22 audio ranges from 50-3200hz that the MP has a  lower noise 
level in 12 out of 20 ranges and is about identical in  most of the others?  
Doesn't a lower negative number = a lower noise  level?  
 
73,
Dick- K9OM
 
Here are some measurements using Spectrogram and broadband noise:  

FT-2000   --- MK V ---      IC-706     ------ K3 ------

Analog   DSP      MKIIG     Norm  BW=4   EQ

50   -34       -44     -49     -46        -35   -7    -35
100    -31       -24      -27      -40        -18    -6   -18
200    -17       -10   -9      -21          -5   -2    -5
300    -6       -4      -4      -11       -1    0    -1
400    -3   -2      -1        -5          0    0      0
600    -2        -1        0       -1          0     0     2
800    -1         -1       0        0       0    0     1
1000     -1        -1       0     -1          0    0   0
1200      0        -1   0       -2         0    0     0
1400      0   0       0     -1          0    0     -2
1600    -1        -2       -1       -2          0     0    -3
1800    -2        -3   -2       -3           0    0    -4
2000    -5       -5      -2       -4     -1    0    -5
2200     -7        -6      -3     -6         -2    0     -7
2400    -8        -8       -4       -8         -2     0    -8
2600    -10       -10   -6      -15          -3    0    -9
2700    -23     -13      -7      -27     -4    0   -10
2800     -34       -19     -11       -31         -8    0    -14
2900    -41       -32      -24      -33        -18     0   -24
3000    -50       -43   -36      -35        -58   0   -60
3100               -42               -67    0        
3200     -58       0     
3300                  0        
3400     0        
3500          0     
3600                  -1        
3700      -2   
3800                -4        
3900     -5
4000                      -13
4100                  -34
4150              -66

All measurements were made  at the speaker output for consistency. 
All measurements were made in USB  mode with the default filter 
settings.  FT-1000MP Mark V was measured  with both the analog 
and DSP (100-3100 Hz setting) detectors. 

The  two additional K3 measurements are 1) FM filter, BW=4.00 
and FC=2.00 and 2)  "NORM" using the "pink EQ" settings (1.60=-3, 
2.40=-5, 3.20=-6).   

Note the K3 audio amplifier is the cleanest hands down.  The other  
transceivers had noise floors at about -120 dBV (IC-706 mkIIg was 
-100  dBV).  Except for what appear to be artifacts of the ADC 
clock at 4, 8,  12, 16, 18 and 20 KHz the K3 out of band audio 
noise is <140  dBV.