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Tapco DB-1A Active Direct Box

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Product 150401
Product Price $0.00
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The DB-1A Active DI box converts unbalanced line-level signals to balanced mic-level output and provides signal and impedance matching for the direct...Click To Read More About This Product

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Active direct box for balancing and impedance-matching low output sources.

The DB-1A Active DI box converts unbalanced line-level signals to balanced mic-level output and provides signal and impedance matching for the direct connection of instruments like guitars, basses and keyboards to amplifiers and mixers. A 1/4" input jack is provided for connecting instrument or speaker-level signals, and a separate 1/4" thru jack allows the unbalanced signal to be sent to an onstage amplifier while the balanced signal is sent to a mixer. The ground lift switch on the DB-1A Direct Box helps eliminate hum and buzz problems in musical instrument hookups.

Not every instrument is made to connect directly to a mixer. Guitars and basses have a lower output signal level, and their output is not balanced. If you plug them straight into a mixer, you have to jack the preamp level to the max just to get a quiet, wimpy sound. Most keyboards have unbalanced outputs, which means if you try to use long cables, they can pick up all sorts of noise. Direct Injection Boxes solve these and other sticky studio and live difficulties.

  • INPUT: Connect the signal source to this 1/4" unbalanced TS jack
  • POWER LED: Indicates when the battery or phantom power is applied
  • THRU: This 1/4" input lets you connect an instrument to an amplifier onstage
  • PKUP/LINE: Lets you optimize for instruments like guitars and basses or keyboards
  • SPKR: Configures input to accept speaker level outputs, from a guitar amp for example
  • GND/LIFT: Helps to eliminate buzz and hum due to ground loops in the sound system
  • OUTPUT: This balanced XLR jack provides a low-impedance mic-level signal for connecting to a microphone input on a mixer. If the mixer has phantom power, it can be used to power the DB-1A, which automatically switches power away to save battery life
  • High-performance Direct Injection box
  • Rugged metal chassis with rubber sides for extra durability
  • Convenient stackable design
  • Can be powered via 48-volt phantom power from a mixer or internally via two 9-volt batteries (not included)

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Frequency Response
  • 100 Hz ” 20 kHz (+/- 0.05 dBm)
  • 20 Hz ” 20 kHz (+/- 0.80 dBm)
Maximum Input Level
  • Pickup: +8 dBm
  • Line: +15 dBm
  • Speaker: +35 dBm
Input Impedance
  • Pickup: 10M ohm
  • Line: 10M ohm
  • Speaker: 11k ohm
  • Pickup: -8 dBm
  • Line: -28 dBm
  • Speaker: -48 dBm
Residual Noise
  • Pickup: -106 dBm
  • Line: -109 dBm
  • Speaker: -109 dBm
Signal-to-Noise Ratio (with 15 dB headroom)
  • Pickup: -99 dB
  • Line: -109 dB
  • Speaker: -89 dB
  • Rise Time: 1 microsecond, no overshoot
  • THD + Noise: 0.01%
  • Output Impedance: 200 ohms
  • Power Requirements: 48 volts phantom power or two 9-volt batteries
  • Battery Life: 300 hours
  • Current Draw: < 7 mA DC
    Dimensions: 2"H x 4.3"W x 4"D (51x109x102mm)
  • Weight: 14 oz.

This oversized item has special shipping requirements


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