Pro Co DB-1 Direct Box

Sku #151516000000000

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Pro Co

No gimmicks or frills, just the right stuff.

Floating transformer-balanced XLR output for maximum isolation. SPKR Mode handles amplifiers up to 600W RMS. Hi-cut filter reduces distortion. A ground lift eliminates hum and buzz. Rugged Uni-box construction. Switches and connectors are recessed to prevent damage. Passive design requires no batteries or phantom power.

Features
  • Floating transformer-balanced XLR output for maximum isolation
  • SPKR Mode handles amplifiers up to 600W RMS
  • Hi-cut filter for reduced distortion
  • Ground lift
  • Rugged Uni-box construction
  • Recessed switches and connectors
 

DB-1 Direct Box Specifications:

  • FREQUENCY RESPONSE:
    20Hz-20kHz, ±.5DB @ -15dBv output
    -3dB @ approximately 85kHz
    Filter mode introduces 6dB/octave attenuation above 4.0kHz

    TOTAL HARMONIC DISTORTION:
    Less than .03% 20Hz-20kHz @ -30dBv output
    Less than .1% 30Hz-20kHz @ -15dBv output
    Less than .25% 20Hz-20kHz @ -15dBv output

    PHASE RESPONSE:
    Less than -18 @ 20kHz (ref. 1.0kHz)

    RISE TIME:
    Less than 4.5 microseconds (2.0kHz square wave, 10%-90%)

    INPUT IMPEDANCE:
    Greater than 130 kohm @ 1.0kHz (INST mode)
    Greater than 105 kohm @ 10kHz (INST mode)
    (Nominal source impedance is 20 kohm)
    Approximately 8.2 kohm (SPKR mode)
    (Nominal source impedance is 0 ohm)

    OUTPUT IMPEDANCE:
    Less than 200 ohm @ 1.0kHz
    Less than 215 ohm @ 10kHz
    (Nominal load impedance is 1.0 kohm)

    VOLTAGE STEPDOWN:
    Less than 22dB @ 1.0khz (INST mode)
    (SPKR mode attenuates signal by 20dB)

    MAXIMUM INPUT LEVEL @ 50Hz FOR 1% THD:
    +16dBv (INST mode), +34dBv (SPKR mode) @ 20Hz
    +21dBv (INST mode), +41dBV (SPKR mode) @ 30Hz
    +26dBv (INST mode), +46dBv (SPKR mode) @ 50Hz

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