ไดเร็คบ๊อกซ์ Radial StageBug SB1 Active Acoustic Direct Box


ไดเร็คบ๊อกสำหรับกีตาร์อะคูสติก Radial StageBug SB1, Active direct box , Ultra compact to fit in your guitar case, Plug & play easy to use feature set, 48V phantom powered

3,200 ฿

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Radial Engineering StageBug SB-1 Active Acoustic Direct Box

ไดเร็คบ๊อกสำหรับกีตาร์อะคูสติก Radial StageBug SB1, Active direct box , Ultra compact to fit in your guitar case, Plug & play easy to use feature set, 48V phantom powered

The Radial SB-1 Acoustic is a high-performance active direct box made for players that are on the move. Made to fit inside a guitar case, the SB-1 is the smallest Radial DI box ever! But don’t let the small size deter… this ultra-compact StageBug sounds absolutely terrific

The design begins with standard ¼ instrument input with a thru-put to feed your tuner or your on-stage amp. The ultra-quiet active circuit at once converts the signal from high to low impedance to reduce susceptibility to noise.

The signal is then buffered and balanced for long cable runs to the PA system. 48 volt phantom provides the power, so the SB-1 does not require batteries or external supply to make it work. You simply plug in and you are ready to go

The active circuit features a carefully selected 800k-ohm input impedance to eliminate problems with loading while delivering a crisp, clear sound to the audio system. This delivers extra sparkle to the top end when interfacing vintage guitars with low output pickups and is particularly handy should you plan to use it for recording or Reamping. The SB-1 is also equipped with a -15dB pad that reduces the input sensitivity to gracefully handle even the loudest active instruments. This makes the SB-1 perfectly well suited for electric bass and keyboards. To reduce feedback, toggling the 180° polarity switch helps eliminate hot spots on stage that can cause low frequency resonance.


  • Active direct box optimized for acoustic guitar
  • -10dB pad buffers against extra-hot active electronics
  • 180-degree phase switch tames hot spots and feedback
  • Runs on 48V phantom power (no batteries needed)
  • Compact design fits in virtually any guitar case


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)
Packaging Info
Package Weight 0.65 lb
Box Dimensions (LxWxH) 7.3 x 4.6 x 1.7″


ดาวน์โหลด USER GUIDE ไดเร็คบ๊อกซ์ Radial StageBug SB1 Active Acoustic Direct Box

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