Midwestspl uses the manufactures size ratings when determining how many of what size speaker is allowed in each class.
| Class | No Mods | Walls | Speakers | Power | Max Voltage | Music/
Tone | Time | Average/
Peak |
|---|
| MSD 1 | B-Pillar
Forward | Yes | up to 1-12, 2-10's or 3-8's | Unlimited | 15.5 | Music | 30 Seconds | Peak |
| MSD 2 | B-Pillar
Forward | Yes | up to 1-15, 2-12, or 3-10's | Unlimited | 15.5 | Music | 30 Seconds | Peak |
| MSD 3 | B-Pillar
Forward | Yes | 1-24, 1-21, 1-18, 2-15 or 4-12's | Unlimited | 15.5 | Music | 30 Seconds | Peak |
| Basic 1 | Passenger Compartment | No | up to 1-15, 2-12, or 3-10's | 1000 Watts | 15.5 | Any | 30 Seconds | Peak |
| Basic 2 | Passenger Compartment | No | 1-24, 1-21, 1-18, 2-15 or 4-12's | 2000 Watts | 15.5 | Any | 30 Seconds | Peak |
| Basic 3 | Passenger Compartment | No | Unlimited | 4000 Watts | 15.5 | Any | 30 Seconds | Peak |
| Basic 4 | Passenger Compartment | No | Unlimited | 8000 Watts | 15.5 | Any | 30 Seconds | Peak |
| Basic Trunk | Passenger Compartment | No | Unlimited | 2000 Watts | 15.5 | Any | 30 Seconds | Peak |
| Advanced No Wall | B-Pillar
Forward | No | Unlimited | Unlimited | 15.5 | Any | 30 Seconds | Peak |
| Advanced 1 | B-Pillar
Forward | Yes | 1-24, 2-21's, 2-18's, 4-15's, 6-12's* speakers | 4000 Watts | 15.5 | Any | 30 Seconds | Peak |
| Advanced 2 | B-Pillar
Forward | Yes | 2-24's, 3-21's, 4-18's, 6-15's, 9-12's* speakers | 8000 Watts | 15.5 | Any | 30 Seconds | Peak |
| Advanced 3 | B-Pillar
Forward | Yes | Unlimited | Unlimited | 15.5 | Any | 30 Seconds | Peak |
| Advanced C | C-Pillar
Forward | Yes | 1-24, 2-21's, 2-18's, 4-15's, 6-12's* speakers | 4000 Watts | 15.5 | Any | 30 Seconds | Peak |
| Xtreme 1 | Passenger Compartment | No | up to 1-15, 2-12's, 3-10's, 4-8's* Speakers | Unlimited | 15.5 | Music | 30 Seconds | Average |
| Xtreme 2 | Passenger Compartment | No | Unlimited | Unlimited | 15.5 | Music | 30 Seconds | Average |
| Xtreme 3 | B-Pillar
Forward | Yes | 1-24, 2-21's, 2-18's, 4-15's, 6-12's* speakers | Unlimited | 15.5 | Music | 30 Seconds | Average |
| Xtreme 4 | B-Pillar
Forward | Yes | Unlimited | Unlimited | 15.5 | Music | 30 Seconds | Average |
| Kaos 1 | Passenger Compartment | No | up to 1-15, 2-12's, 3-10's, 4-8's* Speakers | Unlimited | 15.5 | Music | 1 1/2 Minutes | Average |
| Kaos 2 | Passenger Compartment | No | Unlimited | Unlimited | 15.5 | Music | 1 1/2 Minutes | Average |
| Kaos 3 | B-Pillar
Forward | Yes | 1-24, 2-21's, 2-18's, 4-15's, 6-12's* speakers | Unlimited | 15.5 | Music | 1 1/2 Minutes | Average |
| Kaos 4 | B-Pillar
Forward | Yes | Unlimited | Unlimited | 15.5 | Music | 1 1/2 Minutes | Average |
| Kaos 2 Music | Passenger Comartment | No | Unlimited | 4,000 Watts | 15.5 | Music | 1 1/2
Minutes | Average |
| Mayhem | Anything Goes | Anything Goes | Unlimited | Unlimited | 18 | Music | 1 1/2 Minutes | Average |
| Midwest Tone | B-Pillar Forward | Yes | Unlimited | Unlimited | 15.5 | Any | 30 Seconds | Peak |
| Kaos 4 Music | B-Pillar Forward | Yes | Unlimited | 8,000 Watts | 15.5 | Music | 1 1/2 Minutes | Average |
Midwestspl uses the manufactures size ratings when determining
how many of what size speaker is allowed in each class.
1-160 square inches
161-250 square inches
251-500 square inches
501-750 square inches
750-1075 square inches
| Basic 1 |
Basic 2 |
Basic 3 |
Advanced 1 |
Advanced 2 |
| Xtreme 1 |
Kaos 1 |
|
Xtreme 3 |
Kaos 3 |
|
8 |
10 |
12 |
13 |
15 |
16 |
18 |
21 |
24 |
| 1 |
50.24 |
78.5 |
113.04 |
132.665 |
176.62 |
200.96 |
254.34 |
346.185 |
452.16 |
| 2 |
100.48 |
157.0 |
226.08 |
265.33 |
352.94 |
401.92 |
508.68 |
692.37 |
904.32 |
| 3 |
150.72 |
235.5 |
339.12 |
397.995 |
529.56 |
602.88 |
763.02 |
1038.5 |
1356.48 |
| 4 |
200.96 |
314.0 |
452.16 |
530.66 |
706.18 |
803.84 |
1017.36 |
|
|
| 5 |
251.2 |
392.5 |
565.2 |
663.325 |
882.8 |
1004.8 |
1271.7 |
|
|
| 6 |
301.44 |
471.0 |
678.24 |
795.99 |
1059.42 |
1205.76 |
1526.04 |
|
|
| 7 |
351.68 |
549.5 |
791.28 |
928.655 |
1236.04 |
1406.72 |
|
|
|
| 8 |
401.92 |
628.0 |
904.32 |
1061.32 |
1412.66 |
1607.68 |
|
|
|
| 9 |
452.16
|
706.5 |
1017.36 |
1193.985 |
|
|
|
|
|
| 10 |
502.45 |
785.0 |
1130.4 |
1326.65 |
|
|
|
|
|
| 11 |
552.64 |
863.5 |
1243.44 |
1459.315 |
|
|
|
|
|
| 12 |
602.88 |
942.0 |
1356.48 |
|
|
|
|
|
|
| 13 |
653.12 |
1020.5 |
1469.52 |
|
|
|
|
|
|
| 14 |
703.36 |
1099.0 |
1582.56 |
|
|
|
|
|
|
| 15 |
753.6 |
1177.5 |
|
|
|
|
|
|
|
| 16 |
803.84 |
1256.0 |
|
|
|
|
|
|
|
