The Warm Direct Box Passive is designed for use with electric instruments with active pickups such as basses and guitars as well as line-level instruments. The design is based around renowned electrical components such as the custom-wound CineMag transformer at its core. With its rugged extruded aluminum enclosure, its rugged metal switches, and Pad knob it will provide a warm tone over long cable runs as well as durability on the road. This is the passive model, which is better suited for balancing the signal of instruments with active electronics such as electric guitars geared towards heavy metal and many electric basses. However, the DI box sports a frequency range of 20 Hz to 70 kHz at ±0.5 dB, so it can still handle passive instruments with a range that eclipses many other DI boxes. Passive DI boxes do not require power to operate. Wired for Sonic Integrity and Durability Every aspect of the Warm Direct Box Passive is designed for sonic integrity, from custom-wound CineMag USA transformers, to metal switches and connectors, to gold-plated circuit traces Passive Specifications CUSTOM-WOUND CINEMAG USA OUTPUT TRANSFORMER CONVERTS INSTRUMENTS TO MIC-LEVEL SIGNALS WITHOUT SIGNAL DEGRADATION IDEAL SOLUTION FOR PLUGGING YOUR INSTRUMENT DIRECT INTO ANY MIC PRE TOP-QUALITY CLASS A COMPONENTS WITH GOLD-PLATED TRACES ON CIRCUIT BOARD RUGGED ALUMINUM CONSTRUCTION PAD: VARIABLE FROM -3DB TO -30DB BALANCED OUTPUTS: 600 OHMS, MIC LEVEL INPUT IMPEDANCE: 1 MEG OHMS THD: .01% FROM 20HZ TO 100HZ. LESS THAN .004% FROM 100HZ TO 20KHZ FREQUENCY RESPONSE: 20HZ TO 70KHZ +/- 0.5DB More information - Warm Audio