U-Sound Mr. Postman


Make your guitar sound unique!

This stompbox is used as a tone booster with the other guitar effects, or as a complete preamp.

The basis of this device is a circuit of "Simon Boost" with some modifications such as low-noise chip Burr Brown, added three sectional Dip Switch, the newest PCB and more.    

By removing the bottom cover of the device you'll find a three sections Dip Switch as addition to standard adjustments (Volume, Bass, Mid, Treble).  

  • Shift - increase the upper mid frequencies
  • Bass Boost - great for bass guitar
  • Boost - increase output volume

"Mr. Postman" makes vivid and expressive sound of any guitar or bass. You can put it at the beginning and at the end of your pedal board.

At the beginning of the board it is functioning as a boost, at the end of the board - as a preamp and equalizer. This stompbox is handcrafted from selected components, it has minimal internal noise and will satisfy the coolest musicians.

Controls : 

  • Volume - output signal level
  • Bass - low freq level
  • Mid - mid freq level
  • Treble - high freq level
  • Features: 100% True Bypass Power:
  • 9 V battery or 9Volt, negative center pin power supply


  • Length: 110 mm
  • Width: 60 mm
  • Height: 50 mm
  • Weight: 250 grams
  • All pedals are made individually.

Most recent forum threads

Link to this page

Here's some code to post a link with image on forums, eBay, websites,...
BB Code
(sites, eBay,...)

Where to find one?

your browser doesn't support AJAX?

fx pedal stompbox stomp box guitar effects pedal amplifier amp amplification preamp pre-amp volume/amplification
Syndicate content

Subscribe to our newsletter

Also check out Effects Database's social media accounts: