Pro Co DB2 Passive Stereo Direct Box

The ProCo TradeTools DB-2 is a passive, two-channel (stereo) direct box that offers clean and reliable performance both on stage and in the studio environment. Like the ProCo DB-1 Direct Box, it can be used for nearly any instrument or signal source, from electric bass, keyboards and drum machines and submixers.

The DB-2 preserves the “punch” and clarity of the sound that is often lost when mic’ ing a speaker, while eliminating the leakage, distortion and coloration. The signal delivered to the P.A. or studio mixer is crisp and clean - a vital element in retaining the full depth and brilliant sound of digital equipment.

The DB-2 incorporates the same reliable design that has made the DB1 an industry icon with the added convenience of being two direct boxes in one case. The DB-2 Boasts a low noise floor, high headroom, and a generous frequency response. Using ProCo’s DBT-P impedance matching Transformers with dual electrostatic shields, the input signals are balanced and decoupled from the output. Other features include a ground lift switch to alleviate ground loops and separate 20dB pad switches for each input, to alleviate signal overload. As an added feature, the DB-2 acts as a transformer isolated signal splitter when used with only one input, presenting the same signal to both outputs.

Built for the road, but equally at home in the recording studio, the DB-2’s rugged 16-gauge steel and aluminum “Uni-box” enclosure is finished in a durable black texture powder coat finish with black anodized aluminum side channels. Easy to read control graphics are incorporated into the Lexan® top panel overlay.

Features

• Two Discrete Channels of Audio in One Enclosure
• Floating Transformer-Balanced XLR Output for Maximum Isolation
• GND/LIFT Switch Eliminates Hum and Buzz
• Separate 20 dB PAD for Each Channel
• Flush-mounted Switches and Connectors Resist Damage
• Passive Design Requires No Batteries or Phantom Power
• Rugged ProCo Uni-Box Construction Provides Superior Protection and Shielding

Specifications

• Frequency Repsonse:
  • 20 Hz - 20 kHz, ± 0.5% @ -15 dBv output.
  • -3 dB @ approximately 85 kHz.
• Total Harmonic Distortion:
  • < .03% 20 Hz - 20 kHz @ -30 dBv output.
  • < 0.1% 30 Hz - 20 kHz @ -15 dBv output.
  • < .25% 20 Hz - 20 kHz @ -15 dBv output.
• Phase Response:
  • < -18° @ 20 kHz (ref. 1.0 kHz).
• Rise Time:
  • < 4.5 microseconds (2.0 kHz square wave, 10%-90%).
• Voltage Stepdown:
  • < 22 dB @ 1.0 kHz (INST mode)
• Input Impedance:
  • >105 kohms @ 10kHz.
  • >130 kohms @ 1.0 kHz.
• Nominal source impedance is 20 kohms
• Nominal source impedance is 0 kohms
• Output Impedance:
  • < 200 Ohms @ 1.0 KHZ.
  • < 215 Ohms @ 10 kHz.
• Nominal load impedance is >1.0 kohms
• Maximum Input Level @ 50 Hz for 1% THD:
  • +16 dBv @ 20 Hz.
  • +21 dBv @ 30 Hz.
  • +26 dBv @ 50 Hz.