BSS Audio AR-133 Active DI Box

Sku #186309000000000

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BSS Audio

Added functionality and enhanced audio performance for a price that won't break the bank.

The AR-133 Active DI Box from BSS Audio uses an enhanced version of the same audio path as the AR-116, now regarded by many people as a reference standard. The sound quality is legendary, particularly on acoustic and bass guitars. Numerous applications can be satisfied by the AR-133. For example, 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.

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.

The BSS AR-133 includes phantom power and battery supplies as standard. Should the phantom power from the console fail or be accidentally switched off, the AR-133 automatically switches over to the internal 9V battery providing uninterrupted use. This unit is housed in a rugged aluminum extrusion case, with robust polyurethane end-cheeks which give the AR-133 a very distinctive look.

Features
  • Switchable input
  • attenuation
  • 0dB for guitar-type
  • pickups
  • -20dB for line level
  • signals
  • -40dB for speaker
  • feeds
  • Matches the level and impedance
  • with unity gain without
  • loading the source
  • Can drive signals up long cable
  • lengths
  • Powered from console
  • phantom power or internal
  • battery
  • Automatic switchover to battery
  • if phantom power fails
  • Parallel Link Jack output to feed
  • amplifiers directly
  • Parallel XLR input for
  • converting unbalanced outputs
 

AR-133 Active DI Box Specifications:

  • Input Section

    Input Impedance
    1MOhm (pad at 0dB)
    47kOhm (pad at -20dB)
    47kOhm (pad at -40dB)

    Max Input Level
    +9dBu (pad at 0dB)
    +29dBu (pad at -20dB)
    +49dBu (pad at -40dB)

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

    Jack:
    Tip Hot (+ve)
    Sleeve Ground

    XLR:
    Pin 2 Hot (+ve)
    Pin 1 & 3 Ground

    Output Section
    Output: Transformer Balanced
    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

    General
    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: 650 gms, excluding batteries.
    Overall Dimensions: 59 mm x 124 mm x 143 mm (2.3" x 4.9" x 5.6")
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