Pettyjohn Handwired PreDrive

Handwired dual foot-switchable guitar preamp
MFR# Handwired PreDrive
Pettyjohn Handwired PreDrive
Pettyjohn Handwired PreDrive Pettyjohn Handwired PreDrive video video video video


$509.15 (You Save 15%)

No interest if paid in full within 12 months Learn more
In Stock
Orders placed by 4:30pm ET M-F will ship the same day. Place your order before 4:30pm ET Mon-Fri and we will ship your items the same day.

To inquire if this item is available in one of our stores, please call 888.653.1184 or chat with us.

The Pettyjohn Handwired PreDrive studio grade, dual foot-switchable guitar preamp is designed to be the first pedal in your chain. Built in the USA with two discrete opamp chips and audiophile components throughout, the PreDrive will preserve every detail of any instrument plugged into it! The PreDrive’s preamp was designed to serve the unique needs of a matching impedances of magnetic pickups, typical in electric and bass guitars, and can be used as a preamp for almost any instrument outfitted with a magnetic pickup. With a full frequency range and a transformer coupled Direct Output, you can capture great direct in tones in the studio, perfect for reamping, using virtual amps or even use the PreDrive in front of digital effects units to add extra dimension and clarity to your tone.



  • High headroom, transparent input buffer/ preamp with true bypass
  • Vari-Z switch adjusts the input impedance to better match between different guitars
  • Foot switchable boost with up to 11 dB of gain
  • Wide range sweepable High Cut and Low Cut filters for shaping great base tone
  • Harmonic Drive Circuit and drive knob mix in extra warmth and harmonic saturation if desired.
  • Separate Buffered Tuner Output
  • Transformer coupled direct output on balanced TRS jack
  • Audiophile components throughout:
    • 1% precision metal film resistors
    • Audio grade metallized polypropylene input coupling capacitor
    • No electrolytic capacitors in the signal path
  • Uses standard 18-24 volt pedal power. Supply available separately.
  • Durable, custom metal enclosure made in the USA
  • Custom, hand finished Vintage Blue Patina paint job



Additional Information

Condition New

Let me preface this review by saying I just got this pedal in yesterday but I did play around with it for about 6 hours. The sound is very subtle but quite rich. The Pre-amp side adds a touch of clarity on the top end and some body in the low-mids. The boost is quite nice as well. The boost side seemed to be very transparent, which is a word that I think is thrown around too much. But I really feel as though I'm just hearing my amp being pushed more and that any extra overdrive I'm hearing is coming from the amp being saturated with signal rather than the pedal creating noise, and there seem to be no added eq tweaks, which is exactly what I was looking for. There were some negatives I experienced but they didn't necessarily impact the tonal quality. The input gain pot was extremely scratchy straight out of the box. Once set however, there were no noticeable extra noises. Also the switches give a noticeable "pop" when pressed. I would like to use this pedal in a live setting but if the "poping" remains a problem I don't really see myself using it there. Which is a shame because, again, the pedal sounds really nice.

By Michael on July 8, 2015

Share Your Opinion

The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the Pettyjohn Handwired PreDrive. Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?

Blog Posts

Have some questions about this item?

When it comes to getting the best gear, your tastes are probably pretty particular. Vintage King can help answer any and every question to help you make the right decisions for your sound. Fill out the form below and we'll be in contact with you shortly.

Free Shipping in the USA and 50% Off International Shipping! See terms.

* Required Fields