BOSS DI-1 Active DI 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.

• 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

Specs

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

• -110 dBu or less (IHF-A)

Total Harmonic Distortion

• 0.05 % or less

Power Supply

• DC 9 V: Dry Battery (6F22/6LR61 type), or Phantom Power: DC 24 V to DC 48 V

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: 480 g, 1 lbs. 1 oz.