Pro Co DB1 Direct Box

Maintain clarity and precision with this Pro Co passive DI box. Its simple, solid design prevents the signal from leaking and warping during transfer.

The DB-1 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 such current high-tech equipment as FM synthesizers and digital drum machines.

The DB-1 may be inserted into the signal path at virtually any stage required. For instance, a bass guitar signal can be "taken direct" straight off the instrument for a clean, natural tone, from a preamp or line output for a punchier or "equalized" sound, or from the speaker output of the amp if the dirtier "edge" is desired. Keyboards can each be sent with a separate DB-1, or combined by taking a feed from the keyboard's stage mixer.

Built for the road, but equally at home in the recording studio, the DB-1's rugged 16-gauge steel and aluminum "Uni-box" construction enclosure is finished in a durable black anodized aluminum side channels. The uniquely slotted side channels allow for stacking on top or strapping side-to-side of virtually any number of Pro Co Monoface devices using the Uni-box construction. East to read control graphics are incorporated into the Lexan top panel overlay.

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 read more super-strength and shielding

Recessed switches and connectors resist damage

Passive design requires no batteries or phantom power

Input: 6.3mm (1/4") phone accept signals from instrument or other source. Input imedance-greater than 100kohm; SPKR-approx. 8 kohm. Handles signals of up to 69V RMS (approx. 600 watts across an 8 ohm load).

Output: 6.3mm (1/4") phone jack provides "loop-through" (parallel) connection from input jack. Used when inserting DB-1 between instrument and amplifier.

Speaker/Instrument: Speaker (SPKR) position inserts 20 dB pad between Input and DBT-1 transformer for increased level handling capability (used for speaker or line level sources). Instrument (INST) position bypasses pad. (SPKR/INST switch affect only Lo-Z Output level.)

Hi Cut/Flat: Switch is only functional when SPKR/INST switch is set to SPKR. Hi-Cut position inserts a low-pass filter (-3 dB @ 4kHz, 6 dB. Octave) to simulate frequency response of a typical oudspeaker. Used when source is guitar or bass amplifier speaker ouput. Flat position bypasses filter. (Hi Cut/Flat affect only Lo-Z Output response).

Lo-Z Output: Male 3-pin XLR-type connector provides balanced floating low-impedance output (pin 2 hot). Connect to mixing board microphone channel input. Recommended load impedance: 1.0 kohm.

Ground/Lift: Ground (GND) position connects Input and Lo-Z Output grounds together. Lift position "floats" Lo-Z Output. Use to reduce hum and buzz by eliminating ground loops and providing proper grounding for various conditions.
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Frequency Response: 20 Hz - 20 kHz +/- .5 dB @ -15 dBv output
Total Harmonic Distortion: Less than .1% 30 HZ-20kHz @ -15 dBv
Phase Response: < 18 degrees @ 20 kHz
Dimensions (D x W x H): 4.875 in. x 4.375 in. x 1.75 in.
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 1.5 lbs
Shipping Dimensions: 6 x 5 x 3 in
Manufacturer Part Number (MPN): DB1

For support or warranty questions, please contact the manufacturer:
Phone: 800-253-7360


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