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BSS AR-133 Active DI Box

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BSS AR-133 Active DI Box

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With added functionality and enhanced audio performance, the AR-133 has been designed to be more affordable for musicians, studios and PA companies.
The unit 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.


Input Section
  • 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)
  • 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
  • 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")


  • The AR-133 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.
Only 1 left in stock.
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Premier Quality Active DI Box ::: Phantom Power, battery or mains ::: XLR and 1/4 inch jack inputs ::: instrument, line or amplifier levels on inputs ::: ground lift switch ::: ideal for acoustic and bass guitar or keyboards

Additional Information

Brand Bss Audio
Weight 0.7000
Length 20
Width 20
Height 7
Internal Dimensions (L x W x H) N/A

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