Boss DI-1 Direct Box Overview:

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.

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

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: -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.