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Direct Box Transformer with 0.001 Distortion Ratio
Model: JT-DB-EPC
- 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 of 100dB at 60Hz
- Excellent frequency response and time domain performance
Product Info
Tech Specs
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Jensen direct box transformers are the ideal choice for coupling guitar pickups, musical instrument and other line level outputs to low impedance microphone inputs. They also give excellent results when used as an output transformer for Tube type condenser microphones. Direct Box transformers provides ground isolation and allow long cable runs from high impedance sources without excessive bandwidth loss. When loaded by the 1kohms input impedance typical of mic preamplifiers, this transformer has 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. A 30dB magnetic shield package 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 of 100dB at 60Hz
- Excellent frequency response and time domain performance
- Spec Sheet available - Yes
- Operating Temperature (Maximum): 158 F
- Operating Temperature (Minimum): 32 F
- Maximum Bandwidth: 100 kHz (-3dB)
- Impedance Ratio: 200k:1.5k
- Input Impedance: 141 kohm (1kHz, 0 dBu, test circuit 1)
- Voltage Gain: -22.0 dB (1kHz, 0 dBu, test circuit 1)
- Magnitude response, ref 1 kHz: -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 (20 z to 20kHz, +4dBu, test circuit 1)
- Distortion (THD): <0.001 (1kHz, +4dBu, test circuit 1) and 0.036 (20Hz, +4dBu, test circuit 1) %
- Maximum 20Hz output level: +21.5 dBu (1% THD, test circuit 1)
- Common-mode rejection ratio (CMRR): 100 (60Hz, test circuit 2) and 65 (3kHz, test circuit 2) dB
- Output Impedance: 150 ohm (1kHz, test circuit 1)
- Primary DC resistance: 4.6 kohm (YEL to ORG)
- Secondary DC resistance: 62 ohm (RED to BRN)
- Capacitance: 60pF (primary to shield and case) and 115pF (secondary to shield and case)
- Turns Ratio: 11.52:1
- Breakdown Voltage: 250 Vrms (primary or secondary to shield and case, 60Hz, 1 minute test duration)
Direct Box Transformer
185 kb
- Data Sheet
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Lowrance Sound Company, Inc.
2132 Nailing Drive
Union City, TN 38261
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(901) 885-4504
www.lowrancesoundcompany.com
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Jensen Transformers, Inc.
Model: JT-DB-EPC
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