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ghost Hexpander ADVANCED Preamp Kit (PK-0440-00)

ghost Hexpander ADVANCED Preamp Kit (PK-0440-00)



Regular price $296.95 USD
Regular price Sale price $296.95 USD
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The PK-0440-00 is our preamp to enable a MIDI ready signal from guitar or bass.  


Note:  Some instruments may require modifications to accommodate piezo wires.

See our complete installation manual for more specifics or contact us directly (



Includes 13-pin output jack, optional MIDI volume pot, three way selector switch, momentary up/down switch, and all wiring harness needed for installation.

Does Not include saddles.


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What is the Difference in TUSQ Materials?


TUSQ nuts have a rich tone without the inconsistency found in ivory, bone, and other natural materials. Bone and ivory have hard and soft spots (grain) throughout each piece, hampering the consistent transfer of vibrations to the guitar top. TUSQ nuts are designed to transfer the right frequencies more efficiently from the string to the guitar body.

Best for Acoustic Guitars.


TUSQ XL and Black TUSQ XL nuts are designed to boost guitar tone and performance. These precision-engineered nuts are made with a specially formulated material that couples the strings' vibrations to the neck and brings out the hidden harmonics and richness in every note. It is based on the highly resonant TUSQ man-made ivory but is permanently lubricated to improve the tuning performance of the guitar.

Best for Electric Guitars and BASS.

Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
1 review
  • JL
    Jason L.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    The future of live string instrument music…

    After 40 yrs of playing mass produced clones that had most of their design decisions made around cost or simplicity than for better sound or performance of the guitar or bass…it’s time to start pushing the limits of live musical performances…

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