This subwoofer crossover is built around two banks of precision Linkwitz-Riley low-pass and high-pass filters. Multiplying DACs with monolithic ratio matching are employed to adjust the analog circuit’s filter frequencies. This offers superior tracking behavior and far more precise left/right channel balance compared to conventional approaches.
To minimize distortion and noise, this subwoofer crossover employs top-grade component parts in its all-analog audio circuitry: 1% precision resistors, JFET-input audio-grade op-amps, polypropylene film-and-foil capacitors and metallized polypropylene film capacitors, to name just a few.
This subwoofer crossover’s input-output design makes it equally adaptable to studio, mastering suite or audiophile 2-channel playback environments. To accommodate dual-mode systems, a bypass feature engages a pass-through from a dedicated managed bass input on the rear panel to the crossover’s subwoofer outputs. This makes it convenient to switch from 2-channel to multichannel mode.
General
Maximum input/output voltage: 8 Vrms (+18 dBv)
Input impedance: Unbalanced: 50 kΩ balanced: 20 kΩ (10 kΩ per leg)
Output impedance: Unbalanced: 150 Ω balanced: 300 Ω (150 Ω per leg)
THD+N: < 0.002% at 8 Vrms/10 kΩ, 20 Hz-20 kHz, 90 kHz bandwidth
Channel separation: >80 dB at 1 kHz
Low Pass Frequency Response (+0, -1dB): 5 Hz to 1/4 of filter frequency
High Pass Frequency Response (+0, -1dB): 4x filter frequency to 80 kHz
Power consumption: 30 W (typical, with or without signal)
Mains voltage (frequency): 120 V (60 Hz) or 230/240 V (50 Hz or 60 Hz), factory-set for destination country
Features
Crossover function: Bypass or On, selectable via front panel switch
Subwoofer output modes: Mono, L+R or Stereo, selectable via front panel switch
Crossover frequency range: 30 Hz-150 Hz, variable with independent high-pass and low-pass filter frequency controls on front panel
Subwoofer/satellite balance control: +/- 12 dB, fully variable via front panel knob
Filter damping controls:
Q: 0.3-1.4 @ 12 dB/octave, via front panel knob
Q: 0.16-4.0 @ 24 dB/octave, via front panel knob
For either slope, Q = 0.5 at top dead center “0” mark
Filter slope(s): 12 dB/octave or 24 dB/octave, Linkwitz-Riley selectable via front panel switch
Output muting: independent for each output, via front panel push-button switches
Ground lift: Isolated/grounded, via rear panel switch
Main stereo inputs: Unbalanced L/R: (2 RCA jacks), Balanced L/R (2 XLR/TRS combo jacks)
Managed bass inputs: Unbalanced L/R: (2 RCA jacks), Balanced L/R (2 XLR/TRS combo jacks)
Satellite line outputs: Unbalanced (2 RCA jacks), Balanced (2 TRS jacks, 2 XLR jacks)
Subwoofer line outputs: Unbalanced L/R: (2 RCA jacks), Balanced L/R: (2 TRS jacks, 2 XLR jacks)
In the box
Subwoofer crossover
Power cord
Four RCA shorting plugs
Two rack-mount tabs
Compatible Devices
E-Sub™ Powered Subwoofer
Fathom® IWS Subwoofer System
Fathom® IWSv2 Subwoofer System
Fathom® v2 Powered Subwoofers
Gotham® v2 Powered Subwoofers
