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Radial Engineering StageBug SB-1 Active Acoustic Direct Box

B&H # RASB1ACOUSTC Mfr # R800 0110
Usually ships in 7-10 business days

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This is a special order item and is non-cancelable and non-returnable. Est. arrival at B&H is 7-10 business days (subject to availability). Your order will be charged at time of shipment.

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For international orders, credit cards will be charged at time you place your order.

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You Pay: $69.99

The Radial Engineering StageBug SB-1 Acoustic is an active direct box that has been specifically designed to provide a quick and dependable connection from your instrument to the PA. In other words, it converts the hi-Z output from your instrument--typically a 1/4" guitar jack--to a balanced low-Z signal via standard 3-pin XLR connectors. Balancing the signal reduces noise, enables longer cable runs, and improves the sound quality by properly matching the instrument's impedance with that of the PA. And with 48 volt phantom powering, the SB-1 does not require batteries or external supply to make it work. You simply plug in and you are set to go.

The active circuit features 220kΩ input impedance to eliminate problems with loading while delivering a smooth, warm sound to the audio system. This is particularly important when interfacing vintage guitars with low output pickups when you plan to do some recording or re-amping. This unit is also equipped with a -12 dB pad, which reduces input sensitivity of the circuit to enable louder instruments to be used without distortion. To reduce feedback, toggling the 180° polarity switch helps eliminate hot spots on stage that can cause low-frequency resonance.

Made to fit inside a guitar case for players that are on the move, this compact DI box delivers enhanced sound throughput. Although the SB-1 has been optimized for use with acoustic guitars, it is also well-equipped to handle electric bass guitars and keyboards.

Highlights
Active direct box for acoustic guitar
Compact to fit in your guitar case
Plug-and-play and easy-to-use
48V phantom powered; no batteries needed
Input
Unbalanced hi-Z input for your guitar or bass
Input Pad
Reduces the sensitivity by 12 dB for louder instruments such as an active bass guitar or keyboard so that they can be used without distortion
Output
Sends the lo-Z balanced output signal to the PA system or audio workstation
Tuner Out
Always on, this thru connector is used to feed your tuner or your on-stage amplifier
Phase Reverse
180° polarity reverse helps tame hot spots on stage that can cause feedback
Connectors
Glass-filled nylon connectors are insulated for reduced noise and feature nickel-silver contacts that will not tarnish
Stand-Offs
Made from steel and pressed into the outer casing to ensure proper retention of the circuit board
Durable Switches
With metal outer casing, the switches are rated at over 20,000 cycles for added durability
Circuit Board
Double-sided military grade with through-hole solder points for durability
Full surface ground plane to reduce susceptibility to noise
Enclosure
Made from 14 gauge steel to protect sensitive electronics inside while shielding against magnetic fields
Baked Enamel Finish
Keeps your StageBug looking new for years
Circuit Type Active buffer with phase splitter
Frequency Response 20 Hz to 20 kHz
Total Harmonic Distortion <0.006%
Dynamic Range >100 dB
Input Impedance 800 k / 23 k
Maximum Input +2 dBu / +8 dBu
Gain +1.3 dBu / +4.4 dB
Clipping Level Output: +3.3 dBu / +12.3 dBu
Output Impedance 330 Ω
Equivalent Input Noise -101 dBu
Noise Floor -97 dBu
Intermodulation Distortion <0.01%
Deviation from Linear Phase 25 / 12° maximum
Switches Pad, Phase
Functions Automatic merge
Input Pad Switch -12 dB
XLR Configuration + = Pin 2, - = Pin 3, Ground = Pin 1
Polarity Reverse Yes, 180°
Construction 16 gauge steel chassis and outer shell
Finish Baked enamel
Power 48 V phantom power
Dimensions (L x W x D) 4.50 x 1.85 x 1.35" (11.40 x 4.70 x 3.40 cm)
Weight 0.55 lb (0.25 kg)
Radial Engineering StageBug SB-1 Active Acoustic Direct Box
  • Limited 3-Year Transferable Warranty
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