Onboard Trinity System

The Onboard Trinity System is a dual-source pickup/internal mic system with an onboard preamp. It consists of:

  • Our award-winning Pure pickup (MiniClassic, or 12-String).
  • The Trinity Microphone, featuring an integrated 5″ gooseneck (allowing it to be positioned in a number of ways, incuding outside the soundhole) and 20-20,000 Hz frequency range. Technical Information for the Trinity Microphone.
  • The Onboard 2-Channel Preamp, specially designed with K&K’s “Silent-Filter-Technology.” Individual adjustable Gain-Vol-Bass-Middle-Treble controls are available for both pickup channel and mic channel.
  • The system comes completely assembled with TRSS stereo endpin-jack wired in MONO so a standard guitar cable can be used; no soldering necessary. A velco mounted battery holder and a dual volume control unit for inside-soundhole-edge mount with individual thumbwheel-pots for mic and pickup is also included.

Installing the Onboard Trinity System

The preamp circuitboard is installed on the guitar-bottom with Velcro. It measures only 2.5″ x 2.75″. The circuit board has a metal shield/backing but it is fully open to the top to allow for adjusting the EQ trimmers. It is designed to be preset to perfectly balance the pickup and mic in your guitar. It offers powerful +/- 20 dB EQ without the necessity to cut a hole in your valuable instrument. You can place it either directly under the soundhole for easy access with a long, small-blade flathead screwdriver or you can hide it deeper in your guitar. This system does not require any destructive alteration of your guitar other than the installation of the endpin jack.

 

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