ProCo

Description

The ProCo DB-1 direct box's simple design offers reliable input jacks as well as a loop-through 1/4" jack. Plug any instrument level signal (and some line level) into the box, interface with a standard XLR mic cable into the Lo-Z output, and you're ready to plug the output directly into a mixing console. A ground lift switch is provided for buzz-free operation in almost any environment.
ProCo DB-1 Direct Box

Features

  • Transforms Hi-Z 1/4" input to balanced Lo-Z XLR output
  • Heavy-duty steel box
  • Superior-quality connectors and transformer
  • Recessed connectors and switches to prevent damage
  • Ground lift switch to eliminate hum
  • Paralleled 1/4" output for onstage monitoring
  • Individually tested for performance and quality

Specs

Frequency Response
  • 20Hz–20kHz, ±.5dB @ –15dBV output
  • –3dB @ approximately 85kHz
  • Filter mode introduces 6dB/octave attenuation above 4kHz
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. 1kHz)
Rise Time
  • Less than 4.5 microseconds (2kHz square wave, 10%–90%)
Input Impedance
  • Greater than 130 kohm @ 1kHz (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 @ 1kHz
  • Less than 215 ohm @ 10kHz
  • (Nominal load impedance is 1kohm)
Voltage Stepdown
  • Less than 22dB @ 1kHz (INST mode)
  • (SPKR mode attenuates signal by 20dB)
Maximum Input Levelc @ 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

Warranty

Nontransferable limited warranties vary with product.
Guardian cables - lifetime warranty.
Lifeline cables - 20 years.
Excellines cables - 10 years.
Speaker, MIDI, XLR, patch cables - 3 years.
StageMASTER cables - 3 years.
SnakeMASTER snakes - 3 years.
RoadMASTER snakes - 5 years.
E-Cords – 1-, 2-, 5-year warranties, terms vary.
Check with manufacturer for specific product warranty.

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