These models support positive gain filters in AutoCal 2:

2-way: 8320A, 8330A, 8340A, 8350A, 1032C, S360A, 8430A

3-way: 8331A, 8341A, 8351B, 8361A

These models DO NOT support positive gain filters in AutoCal 2:

2-way: 8240A, 8250A

3-way: 8260A, 8351A, 1237A, 1238A, 1238AC, 1238CF, 1238DF, 1234A, 1234AC, 1235A, 1236A

ALL subwoofers including the SE system