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ATI BI400 4 CH Bi-Directional Balanced to Unbalanced Converter
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    ATI BI400 4 CH Bi-Directional Balanced to Unbalanced Converter

    Manufacturer: DaySequerra

    Item #: BI400   •   MFG #: BI400


    Our Price:$335.00

    free ship
    Availability: Direct Ship From Manufacturer
    Item ships directly from the manufacturer. Normal delivery time is 2-7 business days and is subject to manufacturer availability. Need it sooner? Call 800-522-2025, or email Customer Service for expedited delivery options.
    • 2 - 7 Day Normal Delivery Time - Faster Shipping Options at Checkout or Call Us.



    Consumer audio equipment can offer unique features, good performance and attractive pricing making it very desirable for professional use. Unfortunately, RF pickup, ground coupled cross talk, high frequency roll off, hum loops and distortion are often the results of the direct connection of low level unbalanced IHF outputs into the 600 ohm balanced systems used in studio or broadcast environments. Consumer and semi-professional equipment can be identified by the use of RCA type connectors, typical of home hi-fi equipment, for their IHF inputs and outputs. Professional systems typically use XLR type connectors or hard-wired connections.

    The BI400 is a bi-directional stereo interface, which bridges a stereo pair of professional 600 ohm balanced or unbalanced +4dBm lines and converts those signals to a nominal .25volt IHF level (-10dBu). The IHF output can feed, for example, the record inputs of a consumer grade sound card or audio recorder. Simultaneously, the BI100 also converts the unbalanced, high impedance, stereo, .25-volt IHF playback outputs from the sound card to a +4dBm output capable of driving balanced or unbalanced lines of 600 ohms or greater line impedance.

    • Features

      • Quiet, external UL approved 24VDC wall mount power
      • Gold plated RCA type phono jacks
      • Stackable as two or three.
      • Separate LEDs for each 1X4 channel indicate either output clipping (standard) or input signal presence (special order -S)
    • Specifications

      • GAIN: -14dB nominal, -8dB maximum; User adjustable for -10dBu(.25V) output with 0, +4 or +8dBm inputs
      • NOMINAL LEVELS: +4dBm input, -10dBu (.25V) out
      • PEAK LEVELS: +22dBm in, +8dBu (2.0V)out
      • NOISE 20kHz BANDWIDTH: -90dBu maximum output
      • HARMONIC DISTORTION: 20Hz to 20kHz: .02% Max at Peak Level .005% Max at Nominal
      • FREQUENCY RESPONSE: ±.25dB, 20 to 20kHz
      • CROSSTALK: 70dB minimum at 10kHz
      • INPUT IMPEDANCE: Balanced, 20kohm bridging
      • OUTPUT IMPEDANCE: Unbalanced, 1500 ohms maximum impedance Level
      • GAIN: +14dB nominal, +22dB maximum; User adjustable to 0, +4 or +8dBm output with -10dBu (.25V) input
      • NOMINAL LEVELS: -10dBu (.25V) in, +4dBm out
      • PEAK LEVELS: +8dBu (2.0V) in, +22dBm out
      • NOISE 20kHz BANDWIDTH:-80dBm maximum output
      • HARMONIC DISTORTION 20Hz to 20kHz: .02% Max at Peak Level .005% Max at Nominal Level
      • FREQUENCY RESPONSE: ±.25dB, 20 to 20kHz
      • CROSSTALK:70dB minimum at 10kHz
      • INPUT IMPEDANCE:Unbalanced 10,000 ohms
      • OUTPUT IMPEDANCE:Balanced, 40 ohms maximum impedance
      • DIMENSIONS: 1.5” (3.8cm) H x 5.5” (14cm) W x 5.75” (14.6cm) D
      • WEIGHT: 1.5 lbs. Net; 3 lbs. Shipping Weight
      • POWER BI400 & UB400B: 24VDC @.07A BU400B: 24VDC @.04A Connector sleeve is Positive, Center Pin Negative

    Add Accessories for your BI400: