Signal Processing Systems : Related Signal Processing Products : Jensen Transformers, Inc. - DB-2PX

Dual Direct Box Isolator

Model: DB-2PX

Converts unbalanced 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 100dB at 60Hz
Excellent frequency response and time domain performance

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Dual direct box isolator, when loaded by the 1kohms input impedance typical of mic preamplifiers, this isolator has a 140kohms input impedance, making it ideal for high impedance sources. It can be used with or without an active buffer as a direct box for electric guitars or synthesizers. 30dB magnetic shielding is standard.

Converts unbalanced 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 100dB at 60Hz
Excellent frequency response and time domain performance

Spec Sheet available - Yes

Operating Temperature (Maximum): 158 F
Operating Temperature (Minimum): 32 F
Input Impedance: 97 kohms (100Hz, -10dBu, test circuit 1)
Voltage Gain: -38.6 dB (1kHz, 0dBu, test circuit 1)
Deviation from linear phase (DLP): +1.2/-0 ° (20Hz to 2kHz, 4dBu, test circuit 1)
Distortion (THD): 0.036 % (20Hz, 4dBu, test circuit 1)
Maximum 20Hz input level: 21.5 dBu (1% THD, test circuit 1)
Common-mode rejection ratio (CMRR): 80 dB (60Hz, test circuit 2)
Output Impedance: 150 ohms (1kHz, test circuit 1)
Capacitances at 1kHz: 100 pF (primary to shield and case)
Transformer Turns Ratio: 11.52:1
Breakdown Voltage: 250 Vrms (primary or secondary to shield and case, 60Hz, 1 minute test duration)