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Description
Radial Engineering SB-4 PIEZO StageBug DI BoxRadial Engineering SB 4 overview The StageBug SB 4 Piezo DI from Radial Engineering is a compact active direct box that has been optimized for use with piezo transducers. This enables violin, dobro, mandolin, cello, upright bass, and other instruments that are best amplified using a piezo to be connected to a mixing board or recording device. This unit features a 1 4" input for the instrument pickup and a 10 M impedance that smoothes out troublesome
Radial Engineering SB-4 overview
The StageBug SB-4 Piezo DI from Radial Engineering is a compact active direct box that has been optimized for use with piezo transducers. This enables violin, dobro, mandolin, cello, upright bass, and other instruments that are best amplified using a piezo to be connected to a mixing board or recording device.
This unit features a 1/4" input for the instrument pickup and a 10 MΩ impedance that smoothes out troublesome peaks. The higher impedance also broadens the frequency response for a more natural and pleasing sound. The active circuit performs the high-to-low impedance conversion and balances the signal to enable long runs upwards to 328’ (100m) without loss, delivering linearity and low distortion throughout the audio range.
To help eliminate feedback on stage, it 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 top of 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. Reversing the polarity eliminates the acoustic peak without resorting to severe equalization which only serves to compromise the natural tone of the instrument. The unit’s connections include an AUX out for a stage amplifier plus a standard XLR output to feed the PA. Power is derived from the console's 48V phantom, thus eliminating the need for batteries or external supply.
These features combined with the compact size makes this unit a suitable companion for orchestral artists, blue grass players, and pop string quartets that need to turn it up when in concert.
- Active DI optimized for piezo transducers
- Smoothes out peaks, eliminates squawk
- High pass filter eliminates resonance
- Ultra compact to fit in your guitar case
- Made in Canada
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Radial Engineering SB-4 specs
Circuit Type Piezo optimized active buffer Frequency Response 20 Hz to 20 kHz Total Harmonic Distortion 0.006% Dynamic Range 100 dB Input Impedance 5 MΩ Maximum Input +4 dBu Gain 2 dB Output Impedance 330 Ω Equivalent Input Noise -101 dBu Noise Floor -97 dBu Intermodulation Distortion <0.01% Deviation Phase: 10° @ 50 Hz Switches High Pass Filter, Phase, Ground Lift Low-Cut Filter 150 Hz Filter Slope: 6 dB/octave Instrument Input 1/4" buffered with piezo optimized load Auxiliary Output 1/4" buffered to drive guitar effects, amplifier, or tuner Balanced Output Pin-1 ground, pin-2 (+), pin-3 (-) Others Polarity Reverse: 180°
Ground Lift: Soft lift with 100 Ω to groundConstruction 16 gauge steel chassis & outer shell Finish Baked enamel Power 48 V phantom power Dimensions (L x W x D) 4.50 x 1.85 x 1.35" (114.00 x 47.00 x 34.00 mm) Weight 8.80 oz (249.48 g)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy