Questions? Call Us:

Pro Co DB1
Professional Passive Direct Box


The Pro Co DB-1 is a professional quality passive direct box for connection of unbalanced musical instruments, line-level sources...
Learn More
Our Price: $90.63
Write the first review.

Full Compass offers free ground shipping on thousands of stock and non-stock (special order) items for orders placed on this web site and shipping in the continental US (48 states).

Learn More

Free Shipping


We guarantee to match pricing on the products we sell for new, identical and immediately available products if you see them offered at a lower price. Please contact us if you find a lower price before purchasing.

Learn More

Low Price


Pro Co DB1
In Stock

Similar Products
The Pro Co DB-1 is a professional quality passive direct box for connection of unbalanced musical instruments, line-level sources, and guitar amplifier outputs to low-Z balanced microphone input for PA or recording. 1/4" (6.35mm) input (with parallel 1/4" output). Switches for speaker/line-level attenuation, high-cut filter, and ground lift. Male XLR-type balanced mic-level output. Uses Pro Co DBT-1 transformer (20k/150 ohm).

Pro Co DB-1 Features:

  • Floating transformer-balanced XLR output for maximum isolation
  • SPKR mode handles amplifiers up to 600W RMS
  • HI CUT filter reduces distortion
  • GND/LIFT switch eliminates hum and buzz
  • Rugged "Uni-box" construction for super-strength and shielding
  • Recessed switches and connectors resist damage
  • Passive design requires no batteries or phantom power

    Pro Co DB-1 Specifications:

    • Frequency Response:  20 Hz - 20 kHz, +/-0.5 dB @ -15 dBv output
    • Total Harmonic Distortion:
      • Less than .03% 20 Hz-20 kHz @ -30 dBv output
      • Less than .1% 30 Hz-20 kHz @ -15 dBv output
      • Less than .25% 20 Hz-20 kHz @ -15 dBv output
    • Phase Response:  Less than -18 degrees @ 20 kHz (ref. 1.0 kHz)
    • Rise Time:  Less than 4.5 microseconds (2.0 kHz square wave, 10%-90%)
    • Input Impedance:
      • Greater than 130k Ohms @ 1.0 kHz
      • Greater than 105k Ohms @ 10 kHz
    • Output Impedance:
      • Less than 200 Ohms @ 1.0 kHz
      • Less than 215 Ohms @ 10 kHz
    • Voltage Stepdown:  Less than 22 dB @ 1.0 kHz
    • Maximum Input Level for 1% THD:
      • +16 dBv (INST mode), +34 dBv (SPKR mode) @ 20 Hz
      • +21 dBv (INST mode), +41 dBv (SPKR mode) @ 30 Hz
      • +26 dBv (INST mode), +46 dBv (SPKR mode) @ 50 Hz
    • Dimensions (LxWxH): 4.875" x 4.375" x 1.75" (123.8 x 111.1 x 44.4 mm)
    • Weight: 1.0 lb. (0.45 kg)
    • Shipping Weight: 2.0 lbs. (0.91 kg)

    To be the first to review this item, click here.

    Add to Cart

    We're sorry, only of this item available

    Call a Sales Pro at 800-356-5844 for more information

    © 2017 Full Compass Systems, LTD  9770 Silicon Prairie Parkway, Madison, WI 53593  All rights reserved.

    We are not responsible for typographical errors in pricing or product specification
    inaccuracies in our catalog or web site. Prices are subject to change without notice.