PASSIVE DIRECT INPUT (DI) BOX TRANSFORMERFor matching high impedance (10k to 100k ohm) guitar pick-up etc to microphone or desk input. Ensures optimum loading of the guitar pick-up and correct matching to microphone pre amplifier. Accepts balanced or unbalanced inputs or outputs. Isolates ground noise effects. Enhances harmonic content when long cable is used. Secondary CT provided for use with push-pull amplifiewrs. Normally it should not be connected. |
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FEATURES Mumetal core for minimal harmonic
distortion. Multiple interleaved windings to minimise leakage inductance
ensuring good high frequency response. Electrostatic screens for noise
rejection. Secondary winding centre tapped to provide phantom powering of
an active transducer or phase split feed for
use with a push-pull amplifier. Mumetal can for magnetic shielding. Package options. |
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RATIO |
10ct:1 |
MAXIMUM LEVEL 0.5 % THD at 50 Hz (40 ohm
source) |
+34 dBu |
DISTORTION at 50 Hz (Source 40 ohms) |
0.25% at +20 dBu |
PRIMARY INDUCTANCE/RESISTANCE (approx) |
800 H / 2800 Ohms |
SECONDARY INDUCTANCE/ RESISTANCE (approx) |
8H / 74 Ohms |
FREQUENCY RESPONSE 10k ohm source 1k ohm
load |
+/- 1.5 dB 10 Hz to 40 kHz |
