Was bored today couldn't do any yard work so I decided to pull out the US Acoustics usa2100 chrome and 2100 grey, open them up and see the differences.
Per the manual.........(no difference in models listed btw), pics show a different story.
100 x 2 @ 4 ohms
150 x 2 @ 2 ohms
300 x 1 @ 4 ohms
THD: Less than 0.01%
S/N: 104db
Damping Factor: greater than 100
Fuse rating: 35A
Measurements: 11.4x6.3x1.9in
Weight: 5lbs