The Hartman Electronics 8va Octave Fuzz Pedal is a meticulous recreation of the Tycobrahe Octavia, a one-octave-up analog fuzz guitar pedal, with modern true-bypass switching and additional controls for greater tonal flexibility.

The Trim control serves as a surrogate tone control.  It engages only when the Octave mode is engaged via the second foot switch, rolling off highs, and evoking a better octave effect.  With the octave-mode switched off, the 8va turns into a Silicon fuzz with great response to player dynamics and guitar controls.

In addition to its blooming octaves and classic Band of Gypsies tones, the 8va can deliver unusual sonic artifacts similar to ring-modulators and 4-quadrant multiplier stages of old analog synthesizers.  Users can create new electronic and percussive effects with the overtones of musical intervals that they play.


- Germanium diode octave section
- Trim control for enhanced octave
- Second footswitch controls octave effect
- Heavy-duty True-bypass switching
- Dual LED Indicators
- 2.1mm 9vdc jack (center-positive)
- Dual LED Indicators
- One Year Manufacturer’s Warranty

- Power Consumption: <30mA @ 9VDC
- Length: 4.9" (125mm)
- Width: 4" (101mm)
- Height: 2.1" (54mm).

Starting with the Ultimate Speaker Demo, an ever-increasing number of the GearTunes audio  clips are being tracked using the Radial JCR Reamp. The Reamp was invented by my good friend and colleague John Cuniberti who engineered/co-produced many of Joe Satriani's most infamous recordings.

For GearTunes, reamping allows me to record a track where the guitar "hears" the amp in the room, but initially only the guitar or guitar and effects signal is recorded. This allows me to spend additional time perfecting amp tones and mic placement once I have the performance I'm looking for. One of the byproducts of this process is the creation of GearTunes DI Clips which enable you to play select guitars and effects through your amp by using your mobile device or computer as a reamp device.

For GearTunes DI Clips - and Gear Tune DI Clips ONLY (always found under the DI clips tab for gear that has one), you can play our guitar and effects through your amp. Simply use an unbalanced cable that terminates with an 1/8th inch jack on one end and a 1/4 inch jack on the other. Connect the 1/8th jack to the output of your mobile device or computer and the 1/4 inch jack into the front of your amp. Start off with your amp volume at zero and your mobile device (or computer) volume all the way up to ensure you hit the front end of the amp with enough signal, and then gradually increase the volume of the clean channel on your amp until you reach a level that is not capable of causing damage to your ears or equipment. GearTunes accepts no liability for the use, abuse or misuse of these clips, and playing them into your amp is done exclusively at your own risk.

I am tremendously excited about being able to share GearTunes DI Clips with you as you journey on your quest to find right gear for the music you play! Cheers ~ Doug:)

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