SWAMP X-USB Microphone Preamp - XLR to USB Interface


SWAMP X-USB - XLR to USB Microphone Preamp | Computer Audio Interface

24-bit Audio

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Simple yet ingenious device providing all the features of larger USB audio interfaces at a fraction of the cost. This device allows you to monitor (hear) yourself whilst recording. Featuring 24-bit audio.


SWAMP X-USB - XLR to USB 24-bit Audio Interface
This simple yet ingenious device provides all the features of larger USB audio interfaces at a fraction of the cost, and saves a great deal of space too! Don't let your home studio become cluttered with pre-amps and USB interfaces, when you could do it all with a device smaller than your fist. Velcro straps allow you to attach it to a mic stand, so you won't even know it's there!

Monitor While You Record
Featuring a 3.5mm headphone output, this device allows you to monitor (hear) yourself whilst recording. Plus allowing you to playback a pre-recorded track while you are recording another over the top. Adjust the playback/monitor ratio easily with the centre dial, and the output volume with the bottom dial. This is functionality is required for professional home studio's and comes at a fraction of the cost with the X-USB.

iPad Compatible - Professional Recording on the Move!
We have just tested the SWAMP X-USB audio interface with a iPad version 4, and have found that it works seemlessly with both dynamic and condenser mics. A 'camera connection kit' is required to enable a regular USB cable to be inserted into the iPad. The X-USB preamp is stong enough to push 0dB of signal to the iPad input, and as with a computer, the signal is totally noiseless. Now you can record professional audio on the go.

Phantom Power 48V
The X-USB even supplies 48V phantom power at the touch of a button, so you can use condenser mics to get that professional studio quality sound anywhere you go. It supplies this phantom power from the computer ir iPad through the USB connection, so no batteries needed.

All this combined with plug and play compatibility with both Windows and Mac, means it has never been easier to plug in and record anytime, anywhere.


  • 1x X-USB XLR to USB Preamp / Audio Interface
  • 1x USB cable


  • Resolution: 24bit A/D Converter, XLR to USB
  • Sampling Rate: 48kHz / 96kHz
  • Frequency Response: 20Hz-20KHz
  • SNR: 68dB
  • Input Sensitivity: -15dBu w/ minimum gain, -47dBu w/ maximum gain
  • 48V Phantom Power and Switch
  • Adjustable Gain
  • Adjustable Headphones Monitoring out
  • LED Indicator
  • USB Powered
  • Signal Boost Gain: +20dB
  • Plug and Play with Win2000, XP, Vista, Windows7, Windows8, Windows 10
  • Compatible with all MAC OSX
View PDF brochure for SWAMP X-USB - XLR to USB Microphone Preamp | Computer Audio Interface

Swamp X-USB

By: Amanda Smith on 13 June 2024
This product works really well and the Swamp support team have been wonderful. They helped me find the Windows 10 sound setting that was preventing the device from working at all. If a note about this Windows 10 issue came with the product I would have rated it a full 5 stars.

Great little device.

By: Paul on 29 September 2021
My son wanted an upgrade to his USB microphone for gaming/streaming/chatting, etc. I bought him one of these devices and paired it with a large diaphragm condenser mic I had lying around. I found that the device did not function correctly with a Win 10 PC using USB 3.1 ports (the audio was weak and distorted), but this was easily fixed by using a USB 2 port. (In our case, I had to install a USB 2 header cable on the motherboard). Otherwise, plug and play.

Great amp, quite surprising

By: John on 13 July 2021
Bought a microphone which didn’t have a pre-amp. This works so well and makes an average Mic AWESOME.

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