The Hartman SFZ brings two classic fuzz circuits together in a single pedal. Starting with a pair of meticulously crafted clones of the original Dallas Arbiter Fuzz Face circuit, the SFZ stacks 2 stages of fuzz end-to-end using gain-selected Germanium and Silicon transistor pairs (NOS NKT275 and BC108, respectively).

Each fuzz stage has its own Fuzz and Volume controls, heavy-duty true-bypass footswitch, LED indicator, and may be selected individually or combined as a pair for greater depth, detail, tonal coloration and sustain. Both fuzz stages respond exceptionally well to touch, player dynamics, changes in guitar volume--and to each other! Split internal 18v power with power kill switch permits mixing and matching carbon-zinc and alkaline batteries for even more tonal options.

Optional Internal Bias Trim is available for either or both fuzz circuits. Other options available include the Mayer-Hendrix mod (Germanium stage) and hybrid pairing of Germanium and Silicon within a single stage.

Main Features:

• 100% hand wired, bench tested and auditioned prior to shipping
• Plated-thru-hole printed circuit board (PCB) construction
• Gain-select NOS Germanium NKT275 and Silicon BC108 transistors
• 5% carbon composition resistors
• Heavy duty true-bypass switching.
• Reverse-polarity protection.
• Metallic Silver powder-coated heavy-duty die-cast aluminum enclosure.
• RF Shielded.
• Dual ON/OFF LED indicators--amber for Germanium, green for Silicon
• Ships with (2) new carbon-zinc 9v batteries