Boss DI-1 Direct Box
The DI-1 is a high-quality direct box with crystal-clear sound for transforming high-impedance, unbalanced instrument outputs to the low-impedance, balanced inputs of a mixing console.
This versatile box facilitates connection of the high-impedance, unbalanced output from your instrument into the low-impedance, balanced input of a mixing console. Along with its balanced low impedance XLR output, two separate high impedance loop-through outputs are offered—one that's parallel wired off of the input jack, and one that's buffered to prevent your guitar from combining the D.I. and guitar amp signals. The XLR output offers a Ground (pin 1) Lift Switch that comes in handy for combating hums, buzzes and other ground loop-induced problems. A Phase switch selects whether pin 2 or 3 is hot, making the DI-1 potentially compatible with any mixer, regardless of wiring configuration.
The DI-1 can be powered either from an internal 9V battery or phantom power supply. The unit's convenient power-conservation mode extends battery life.
Features:
Active direct box with superior frequency responce to conventional transformers
Operates on a 9-volt battery or phantom power from a mixer
Phase reversal and ground lifting switches
Three input level switches
Sturdy, compact design
Nominal Input Level: -20/0/+20 dBm (selectable)
Max. Input Level: +45 dBm (1 kHz), 390 Vp-p
Input Impedance: 4.7 MO/37 kO/33 kO
Max. Output Level: +8 dBm (Balanced 600 O load / Unbalanced, 50 kO load)
Power Supply: 9V 006P battery, phantom power 24V ~ 48V
Current Draw: 6 mA
Connectors: Input, Pararell Out, Unbalanced Out, Balanced Out (Pin #1: Ground, 2: Cold, 3: Hot)
Dimensions: 96.5 (W) x 125 (D) x 46 (H) mm (3-13/16" x 4-15/16" x 1-13/16")
Weight: 480 g (1 lb. 1 oz.)
Specifications:
Frequency Response 20 Hz to 40 kHz (+0.5/-1 dB)
Nominal Input Level -20/0/+20 dBu (selectable)
Max. Input Level +45 dBu (1 kHz), 390 Vp-p
Max. Output Level +8 dBu (Balanced: 600 ohms load, Unbalanced: 50 k ohms)
Residual Noise -11 dBu or less (IHF-A)
Total Harmonic Distortion 0.05 % or less
Current Draw 6 mA
Size and Weight
Width 97 mm 3-13/16 inches
Depth 125 mm 4-15/16 inches
Height 46 mm 1-13/16 inches
Weight 0.5 kg 1 lbs. 1 oz.
0 dBu = 0.775 Vrms
The specifications are subject to change without notice.
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