If you don't see the question you had in mind here, feel free to enter in the form provided along with your email address so we may send the reply directly to you. Thanks for your participation!

Do I need an external power supply or battery to make it work?

No. The StageBug SB-4 derives its power from the 48V phantom power that is commonly found in all PA systems. Simply turn on the phantom power at the mixer and the SB-4 will automatically turn on when plugged in.

Can I harm the StageBug SB-4 by leaving it plugged in?

No. It will sit idle when not in use.

How does the StageBug SB-4 compare to the SB-1?

They are very similar. The SB-1’s input is configured for passive and active acoustic guitars and basses while the SB-4 is configured for piezos. They can be interchanged in a pinch, but they will not sound as good as when used for their designated purpose.

Can I use the StageBug SB-4 on electric bass?

Yes. You may find the tone to be a bit bright due to the high input impedance. If using an active bass, make sure you keep your level down to prevent overloading the SB-4’s more sensitive input.

Can I use the StageBug SB-4 with a magnetic pickup on an acoustic guitar?

Yes. Although magnetic pickups do not require as high an input impedance as a piezo, it will work just fine. You may sound brighter than you like, but this is easily compensated for at the mixer.

How long of a cable can I use with the StageBug SB-4?

On the input side, try to keep the instrument cable as short as possible. This helps eliminate noise caused by induction and radio waves. Cables less than 6 meters (20′) are preferable. As for the output side going to the PA mixer, you can easily extend this to 100 meters (300′) without a problem. This is what DI boxes do!

Is the StageBug SB-4 a good choice for a vintage acoustic instrument?

Yes. Vintage guitars do not lose their value by having a combination ‘connector strap-pin’ and an internal piezo attached. This set-up works great with an SB-4. Your local guitar shop will have a tech that can assist you on this installation. Best of all, you do not need a battery inside the guitar!

I heard that lifting the ground on a 48V active DI cuts off the power. Is this true?

Normally yes… but with the SB-4, we employ a virtual ground lift scheme that enables the 48 volt DC power to pass while eliminating 95% of the ground contamination noise.

Can I use a battery to power the StageBug SB-4?

No. Power is derived from 48V phantom.

Can I use the SB-4’s AUX output to feed a guitar processor or pedal?

Yes. The auxiliary out is buffered so that it can drive a pedal without affecting the piezo optimized input.

If I don’t have a PA and just want to run the SB-4 in my amp, will it work?

Yes, but you will need an external phantom supply like the Radial SB-48 for powering. Simply use the THRU (Aux) output to feed your stage amp. The SB-4 will correct the impedance for your pickup for great sounding results!

What is the current draw on the SB-4? I would like to power it via the XLR Phantom Power on my Trace Elliot TA100 which has a maximum current draw of 250 mA.

Phantom power is typically 48 volts with 5 to 10 milliamps of current. The SB4 (like all Radial products) is made to work within this range. The actual draw is 4 milliamps. Sounds like your TA amp is more than adequate!

Got a question you'd like to ask?

StageBug SB-4 Resources

Part no: R800 0140 00