Direct Box Interface Audio Isolator Module

Model: DIN-DB

Converts line levels to balanced mic level output
Stops hum and buzz problems in musical instrument hook-ups
Allows use of long cables without high frequency loss
High common-mode rejection of 100dB at 60Hz
Excellent frequency response and time domain performance

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Direct box interface audio isolator module. When loaded by the 1.5kohms input impedance typical of mic preamps, this module has a 200kohms input impedance, making it ideal for high impedance sources. It can be used with or without the input and output attenuator pads to accommodate a wide range of signal levels. A 30dB magnetic shield package is standard.

Converts line levels to balanced mic level output
Stops hum and buzz problems in musical instrument hook-ups
Allows use of long cables without high frequency loss
High common-mode rejection of 100dB at 60Hz
Excellent frequency response and time domain performance

Spec Sheet available - Yes

Input Impedance: 141 ohm (1kHz, +4dBu, test circuit 1)
Voltage Gain: -22.0 dB (1kHz, +4dBu, test circuit 1)
Magnitude response, ref 1kHz: -0.08 (20Hz, +4dBu, test circuit 1) and -0.07 (20kHz, +4dBu, test circuit 1) dB
Deviation from linear phase (DLP): +1.2/-0 degree (20Hz to 20kHz, +4dBu, test circuit 1)
Distortion (THD): <0.001 (1kHz, +4dBu, test circuit 1) and 0.015 (20Hz, +4dBu, test circuit 1) %
Maximum 20Hz output level: +21.5 dBu (1% THD, test circuit 1)
Common-mode rejection (CMRR) ratio: 100 (60Hz, test circuit 2) and 65 (3kHz, test circuit 2) dB
Output Impedance: 150 ohm (1% THD, test circuit 1)
DC Resistance: 4.6kohm primary (pin 1 to pin 4) and 62ohm secondary (pin 5 to pin 8)
Capacitance: 60 (1kHz, primary to shield and case) and 115 (1kHz, secondary to shield and case) pF
Turns Ratio: 11.52:1 (any winding to any other winding)
Breakdown Voltage: 250 Vrms (primary or secondary to shield and case, 60 Hz, 1 minute test duration
Operating Temperature (Maximum): 158 F
Operating Temperature (Minimum): 32 F

Box Module 200 kb - Data Sheet

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