Well guys, the results are in. Comparable testing of the W15GTI vs a 2205 recently remagnetized and reconed (in Dec 2005) as a 2235 show the W15GTI the clear and present winner in the reproduction of bass. Furthermore, the W15GTI has a more extended high end.

Both speakers are in the same enclosures and there is no reason that the results wouldn't be directly comparable.

It is also interesting to note that the W15GTI has a nice "hump" at 60 Hz whereas at that point the 2235 is starting to loose ground. From my experience with WinISD, I recognize that with the W15GTI, this hump could easily be smoothed out by further lowering the tuning of the cabinet which would further help the W15GTI go lower, and flatter.

Sorry that the format is a little hard to read. It's the fault of the web site tha twill not let me space the values, even though I've added blanks between them. If anyone would like to see the data, I have it in an excel sheet.

Frequency W15GTI 2235 Difference
Hz dBL dBL dBL

1500 91.9 84.5 7.4
1450 93.7 78.9 14.8
1400 95.6 87.9 7.7
1300 96.4 89.2 7.2
1200 98.8 90.5 8.3
1100 97.9 94.2 3.7
1000 92.3 101.4 -9.1
950 93.1 101.8 -8.7
900 95.3 101.9 -6.5
850 98.1 99.0 -0.9
800 103.0 98.3 4.7
750 101.2 98.7 2.5
700 100.0 96.6 3.4
650 99.1 98.2 0.9
600 98.7 99.1 -0.4
550 98.1 100.8 -2.7
500 98.8 100.1 -1.3
450 98.8 99.3 -0.5
400 97.9 99.6 -1.7
350 99.0 98.9 0.1
300 99.2 99.8 -0.6
250 100.2 100.0 0.2
200 100.0 100.0 0.0
180 100.0 100.0 0.0
160 99.8 100.5 -0.7
140 99.5 100.3 -0.9
120 101.5 101.4 0.1
100 101.3 100.7 0.6
90 101.6 101.8 -0.3
80 102.3 101.5 0.8
70 103.1 101.6 1.5
60 104.3 100.9 3.4
50 103.8 99.5 4.3
45 101.0 96.9 4.1
40 98.0 90.4 7.6
35 97.0 89.7 7.3
30 96.4 89.6 6.8
25 95.4 90.4 5.0
20 93.4 89.3 4.0