Direct Box suits audio equipment with 3-pin XLR inputs.
January 4, 2010 -
Model SC800 Instrument Direct Box converts outputs of high-impedance line level audio devices to low-impedance, balanced, and isolated mic level signals. Product offers common mode rejection of greater than 100 dB at 60 Hz as well as input impedance of greater than 150 kW at 1 kHz and output impedance under 170 W at 1 kHz. Total harmonic distortion plus noise is less than .05% at 20 Hz, +4 dBu and under .006% at 1 kHz, +4 dBu. Frequency response is 10 Hz to 40 kHz ± 0.3 dB.
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Original Press release
Switchcraft, Inc.
5555 N. Elston Ave.
Chicago, IL, 60630
USA
New SC800 Instrument Direct Box
The SC800 Instrument Direct Box from Switchcraft® converts the outputs of high impedance line level audio devices and musical instruments to low impedance, balanced and isolated mic level signals that can be connected to audio console's, mic pre's, effects processors, and other equipment with 3-Pin XLR inputs.
The SC800 was developed with one goal in mind... to provide audio engineers and musicians with the highest quality passive direct box available today.
Built by hand in Chicago, USA.
SC800 Technical Specifications:
All measurements were taken with a 25 W source into a 1 kW load measured on XLR output.
Common Mode Rejection
Greater than 100dB at 60Hz
Input Impedance
Greater than 150 kW at 1kHz
Output Impedance
Less than 170 W at 1kHz
Phase Response
Less than 3° at 20Hz
Less than 1° at 1kHz
Less than 16° at 20kHz
Total Harmonic Distortion + Noise
Less than .05% (At 20Hz, +4dBu)
Less than .006% (At 1kHz, +4dBu)
Maximum Input Level
+21dBu (At 20Hz with 1% THD)
+41dBu (With 20dB Pad Engaged)
Frequency Response
10Hz to 40kHz (+/-0.3dB, ref 1kHz)
Voltage Gain
-23dB
-43dB (With 20dB Pad Engaged)
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