• Mode switch for stereo 2-way or mono 3-may operation
• Low frequency summed (subwoofer) output
• x10 range switch on both channel
• 40Hz high pass (low cut) filter both channel
• Phase reverse switch on all output
• Individual level control on all output
• -24dB/octave Linkwitz-Riley filter (the professional standard)
• Stereo/Mono status LED indicate the selected mode

Input Connector XLR

• Type Electronically balanced/unbalanced, RF filtered
• Impedance Balanced >50KΩ, unbalanced >25KΩ
• Max Input Level > +21dBu balanced or unbalanced
• CMRR > 40dBu, typically > 50dB at 1KHz

Output Connector XLR

• Type Impedance balanced/unbalanced, RF filtered
• Impedance Balanced 200Ω, unbalanced 100Ω
• Max Output Level > +21dBu balanced/unbalanced into 2KΩ or greater
• CMRR > 40dBu, typically > 50dB at 1KHz
• System Performance
• Bandwidth 20Hz to 20KHz, +0/-0.5dB
• Frequency Response < 3Hz to > 90KHz, +0/-3dB
• Signal to Noise Ref. +4dBu, 22KHz measurement bandwidth
• Stereo Mode
  - Low Output > 94dB
  - High Output > 92dB
• Mono Mode
  - Low Output > 94dB
  - Mid Output > 93dB
  - High Output > 92dB

• Dynamic Range > 114dB, unweighted, any output 
• THD+Noise < 0.004% at +4dBu, 1KHz
  < 0.04% at +20dBu, 1KHz
  Interchannel Crosstalk < -80dB, 20Hz to 20KHz
  Crossover Frequency
  Stereo Mode
  : Low/High 45Hz to 960Hz or 450Hz to 9.6KHz (x10 Setting)
  Mono Mode
  : Low/Mid 45Hz to 960Hz or 450Hz to 9.6KHz (x10 Setting)
  : Mid/High 45Hz to 960Hz or 450Hz to 9.6KHz (x10 Setting)
  Filter Type Linkwitz-Riley, 24dB/octave, state-variable
  Function Switch
  Front Panel
  : Low Cut Activates 40Hz butterworth, 12dB/octave high-pass filter,
  one switch per channel
  : Phase Invert Inverts the phase at the output, one switch per channel
  Rear Panel
  : x10 Multiplies crossover frequency range by 10, one switch per channel
  : Mode Selects stereo/mono and 2/3/4-way operation
  : LF Sum Selects normal (stereo) or mono-summed low frequency operation
  Indicator
  Stereo Operation Green LED
  Mono Operation Yellow LED
  Low Cut RED LED per channel
  x10 Green LED per channel
  Phase Invert Red LED per output (2 per channel)
  Power Supply
  Operating Voltage 230VAC 50Hz
  Power Consumption 15 Watts
  Main Connection IEC 320 receptacle
  Physical
  Dimension [HxWxD] 1.75" x 19" x 6.9" (4.4 x 48.3 x 17.5 cm.)
  Weight 3.7 lbs. (1.7 kg.)
  Shipping Weight 5.4 lbs. (2.5 kg.)