Radial Engineering Stagebug SB-4

Radial Engineering Stagebug SB-4    Compact Active DI with Piezo Input The Radial StageBug SB-4 is a compact active direct box that has been optimized for use with piezo transducers and is small enough to fit inside an instrument case. Active DI optimized for piezo transducers Smooths out peaks & eliminates squawk Powered by 48V phantom, no batteries required Compact design fits in your instrument case The perfect companion for piezo instruments The StageBug SB-4 allows you to retain the natural tone of your piezo-equipped instrument when amplified through a PA system. Unlike typical direct boxes, the SB-4 features a very high 5 meg ohm impedance that smooths out troublesome peaks that give piezo transducers a bad name. This higher impedance also broadens the frequency response for a more natural and pleasing sound. The active circuit balances the audio signal to enable long runs up to 100 meters without loss, while delivering spectacular linearity and low distortion throughout the audio range. Output connections include an aux out for a stage amplifier plus a standard XLR output to feed the PA. Control feedback on stage To help eliminate feedback on a live stage, the SB-4 is equipped with a high-pass filter and 180° polarity reverse switch. The high pass filter eliminates excessive bottom end which in turn reduces resonance that can cause the instrument to vibrate. The 180° polarity reverse helps reduce acoustic hot spots on stage by changing the phase relationship between the PA system and room acoustics which can combine at certain frequencies to create peaks. Features 180° polarity reverse, Ground lift, HPF Input Connectors: 1/4" Output Connectors: XLR General Construction: 16 gauge steel chassis & outer shell Size (L x W x D): 4.5" x 1,85" x 1.35" (114mm x 47mm x 34mm) Weight: 0.55 lbs (250 grams) Shipping size (L x W x D): 8" x 5" x 3" (203mm x 127mm x 76mm) Shipping weight: 0.8 lbs (365 grams) Power: 48V phantom power, 5mA Conditions: For use in dry locations only between 5°C and 40°C Warranty: Radial 3-year, transferable Specifications  Audio circuit type: Piezo optimized active buffer Frequency response: 20Hz to 20kHz Dynamic range: 100dB Gain: +2dB Total harmonic distortion: <0.006% Intermodulation Distortion: <0.01% Phase Deviation: 10° @ 50Hz Input Impedance: 5Meg Ohms Output Impedance: 330 Ohms Equivalent Input Noise: -101dBu Noise Floor: -97dBu Maximum Input: +4dBu .