OK, I found more specs..VERY NICE!
US-X3
• 3-Way Electronic Crossover
• Switchable for 2-Way Operation
• Two Channel High Output:
12dB per Octave High-Pass
Continuously Variable 500Hz-5KHz
Variable High Output Gain
• Two Channel Mid Output:
12dB per Octave Low-Pass (3-Way Mode)
Continuously Variable 500Hz-5KHz
12dB per Octave High-Pass
Continuously Variable 50Hz-500Hz
Variable Mid Output Gain
• Two Channel Low Output:
12dB per Octave Low-Pass
Continuously Variable 50Hz-500Hz
Variable Low Output Gain
Up to 20dB Boost at 53Hz
Switchable Phase Inversion
Can be Switched to Second Input
• 9 Volt Preamp Outputs
• THD at Rated Output:
• Signal/Noise Ratio: 115dBA
• Dimensions: (Including Terminals)
33mm / 1.32in High
242mm / 9.5in Wide
165mm / 6.5in Deep
• Weight: 0.91kg / 2.0lb
• Clear Plexiglas Cover