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BSS Audio AR-133 Active DI Box

Industry Legend Active Direct Box / Line Balancer

Availability: Out of stock

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  • BSS Audio AR-133 Active DI Box Details

    The AR-133 Active DI Box from BSS Audio uses an enhanced version of the same audio path as the AR-116, regarded by many as a reference standard.

    The sound quality is legendary, particularly on acoustic and bass guitars. Numerous applications can be satisfied by the AR-133. As well as the traditional guitar use, the AR-133 can be used with keyboards, DJ consoles, amplifier outputs, and other electronic sources. An additional bonus is the ability to use the AR-133 as an active balancing device. 

    The input connectors are both 1/4" jack sockets and an XLR socket, the latter meaning that the AR-133 can be used to convert unbalanced signals to a balanced output on XLRs throughout.

    The arched case allows cables to run back underneath the unit from the end for neat cable management. Input attenuation is 0, -20 or -40dB, making the box suitable for instrument, line or amplifier levels on inputs. On the output side, a ground-lift switch is provided for quick solutions to ground-loop problems. 


    • Switchable input attenuation
    • 0dB for guitar-type pickups-
    • 20dB for line levelsignals
    • -40dB for speakerfeeds 
    • Matches the level and impedance with unity gain withoutloading the source
    • Can drive signals up long cable lengths
    • Powered from consolephantom power or internal battery
    • Automatic switchover to battery if phantom power fail
    • Parallel Link Jack output to feedamplifiers directly
    • Parallel XLR input forconverting unbalanced outputs to balanced lines


    Input Impedance 

    • 1M Ohm (pad at 0dB)
    • 47k Ohm (pad at -20dB)
    • 47k Ohm (pad at -40dB)

    Max Input Level

    • +9dBu (pad at 0dB)
    • +29dBu (pad at -20dB) 
    • +49dBu (pad at -40dB) 


    • Two Parallel 1/4" jack connectors and a parallel XLR connector (unbalanced)


    • Tip Hot (+ ve)
    • Sleeve Ground


    • Pin 2 Hot (+ve)
    • Pin 1 & 3 Ground

    Output Section

    • Output -  Transfer Balance
    • Max. Output Level - +8dBu into 600 Ohms or greater
    • Connector - XLR3-32 or equivalent

    System Performance

    • Distortion (THD) - < 0.005% at 1khz, 0dbu output
    • Noise -  < -105db unweighted, 22hz-22khz, rms* 
    • Frequency Response - 30Hz to 20kHz, +0dB/-1dB


    • Main/Standby battery - 9 volt PP3 type, preferably alkaline
    • Current drain -  on phantom - less than 7.5mA/ on battery - less than 2mA.
    • Phantom Power - +20 volts DC to +48 volts DC
    • Weight - 650g
    • Dimensions - 59 mm x 124 mm x 143 mm
  • Detailed Shipping & Return Policy Information

    Postage Prices

    • Free Delivery - 3 to 5 Days
    • Express Delivey ($20) - 1 to 3 Days
    • Store Pick Up (South Melbourne) - Free


    Delivery Time frame

    Soundcorp will ship all goods the first business day once all funds have cleared.


    Refunds and Returns

    Defective or dead on arrival items, will be exchanged within 14 days. Return shipping is the responsibility of the customer.

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