Bi-Amping your speakers is the most powerful, low cost, and simplest way for audio enthusiasts to reach the realm of true audiophile quality.

If you want to learn about active crossovers please read our post about the advantages of Active Bi-Amping

  • 2-way Active Crossover - Spits the highs and lows for separate woofer and tweeter amplifiers
  • Fully assembled and tested
  • Audiophile grade Burr-Brown op amps, OPA1654 with 0.00005% THD+N
  • Uses high precision filter components for ultra low distortion and pinpoint XO frequency:
    • Metal film resistors with 1% and 0.1% precision
    • Metalized Polypropylene Film capacitors with 2% precision
  • All Analog Design
  • High quality Linkwitz-Riley crossover, Constant Voltage, 4th order, 24dB/Octave
  • The crossover frequency configuration components are located on a single socketed module – it’s very quick and easy to change the XO frequency by simply snapping in a new module
  • We offer a wide range of standard XO frequency modules. Simply select your desired XO frequency from the drop-down menu above
  • Supports Baffle Step Compensation (BSC). The BSC gain is adjustable and the frequency is configurable to support various baffle sizes
  • The high and low outputs are phase aligned to within a fraction of a degree to eliminate distortion at and around the XO frequency
  • Separate bass and treble output gain adjustments via precision multi-turn pots
  • Double filtered LDO voltage regulator for ultra clean audio
  • This is a mono device, two boards are needed for stereo operation
  • Made in USA

Specifications:

    • THD:                                  0.0032%
    • THD+N:                             0.0086%
    • Frequency Response           Linear from 10Hz – 80KHz
    • Input Impedance                20K ohms
    • Input Overload:                  3.8V peak-to-peak
    • Voltage Gain:                     Adjustable, Max 0dB
    • Filter Topology:                  Linkwitz-Riley, Constant Voltage, 4th Order, 24dB/octave
    • In/Out Jacks:                     RCA
    • In/Out Signal:                    Unbalanced (we also offer Balanced In/Out)
    • PCB Dimensions:                3.5” x 2” x 0.65” high (89mm x 51mm x 17mm)
    • Power supply:
      • 10V–24V DC
      • 100mA current consumption
      • Single positive DC rail - no negative supply required

    Preview the Instruction Manual

    Additional XO Modules are available here

    Or use our simple Linkwitz-Riley calculator to select any custom XO frequency

    Learn more about Bi-Amping: Benefits of Bi-Amping (Not Quite Magic, But Close) and Bi-amping and tri-amping

    What is Bi-Amping? It is the replacement of your speaker’s passive crossover, a source of audible distortion of your sound, with a precise Active Crossover placed ahead of your power amps. The power amplifiers drive the woofer and tweeter directly with no passive components getting in the way. The result is nothing short of breathtaking. You’ll hear detail and color in your music you’ve never heard before. The sound stage opens wide in all dimensions, and you can picture every instrument as if it was in the room with you.

    One of the most important specs for an active crossover is phase coherence. This is the alignment in time of the high and low outputs. If these are out of phase, sounds that are at or near the crossover frequency will be significantly distorted, because both the woofer and tweeter are both driving at this frequency, and if the channels are out of phase they will each be creating slightly different sound, which creates distortion. This video shows how precisely our channel phases are aligned:


    Xkitz Linkwitz-Riley Crossover Phase Coherence - YouTube

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