fedZEP

fedZEP is a zero-latency, extremely CPU-light amp simulator that includes two amp heads, a dual cab section, three pedals, and three effect units.

FEATURES

fedZEP is built around real playing and real feel. Instead of trying to replicate existing analog circuits, we set out to find the most true-to-life response possible in a guitar plug-in, and refined the result the only way we know how: with hands and ears.

AMPS TAB

CLEAN takes tone sculpting to a new level, from sparkly cleans to edge-of-breakup tones.

CRUNCH explores distortion from crunchy, chunky rhythm sounds to huge walls of rock guitar tone.

• VOL1 controls the first gain stage of the preamp, with more front-end bite and attack saturation.
• VOL2 controls the second gain stage, in series after VOL1, adding more harmonic density and sustain.
• BASS, MIDDLE and TREBLE control the 3-band tone stack of the selected amp.
• MASTER controls the power amp drive.
• OUTPUT controls the amp output level.
• PRESENCE controls the amount of post-power amp high-end boost.
• DEPTH controls the amount of post-power amp low-end boost.
• POWER toggles the amp bypass state. When the LED is on, the amp is active.
• AMP ICON at the bottom right switches between CLEAN and CRUNCH.

Advanced Panel

• ADVANCED (+) PANEL shows or hides the advanced amp controls.
• ADVANCED HPF toggles a high-pass filter before the amp. It is active by default, which is how the amp is intended to work. Turning it off lets more low end hit the preamp, increasing saturation.
• ADVANCED TIGHT toggles a low-mid cut before the amp. It is off by default. Turning it on gives a leaner character.
• ADVANCED BRIGHT toggles a high-end boost before the amp. It is off by default. Turning it on gives a brighter, more percussive attack.
• ADVANCED SAG changes the feel and response of the amp for a softer, more power-amp-like push.
• ADVANCED EL84/6973 switches between two power amp flavours: EL84 for a slightly more modern British-style sound, and 6973 for thicker mids with a heavier vintage character.
• ADVANCED SAFE toggles a transparent zero-latency limiter that prevents the full plug-in output from exceeding -0.003 dB.

PEDALS TAB

SNAPPER

SNAPPER is a compressor pedal designed to help you get more sustain and attack out of your signal.

• SQUASH controls the amount of compression applied to the incoming signal. It includes a soft auto-gain behavior so you can compare settings without large volume jumps.
• SNAP controls the attack and release behavior. Clockwise is slower; anticlockwise is faster.
• LEVEL controls the pedal output level.
• BYPASS toggles the pedal bypass state. When the LED is on, the pedal is active.

ELEGANTE

ELEGANTE is an overdrive pedal designed to push the front end harder and add bite.

• DIST controls the amount of saturation applied to the incoming signal.
• TONE controls an advanced tilt EQ, darker anticlockwise and brighter clockwise.
• BARK controls a very aggressive mid-range boost.
• LEVEL controls the pedal output level.
• BYPASS toggles the pedal bypass state. When the LED is on, the pedal is active.

MORSO

Inspired by classic guitar pedals from the 70s and 80s, MORSO delivers thick, unruly distortion in two distinct flavours, with a switch between vintage fullness and a more aggressive top end.

• DIST controls the amount of saturation applied to the incoming signal.
• LEVEL controls the pedal output level.
• MODE switches between MORSO (top position, thicker character) and MORSONE (bottom position, more aggressive tone).
• BYPASS toggles the pedal bypass state. When the LED is on, the pedal is active.

CABS TAB

The dual cab section lets you load two cabs at the same time. Each cab has its own controls.

• CAB SELECTOR chooses the cab for that slot.
• VOL controls the output level of the cab.
• DELAY is a time-alignment control in milliseconds.
• ON/OFF toggles the cab on or off.
• PH flips polarity.
• XY BLEND blends the two cabs together while keeping levels matched.
• RANDO randomises both selected cabs.
• ROOM controls the send to the room-style reverb.
• 8 BAND GRAPHIC EQ boosts or cuts each band by up to +/-12 dB. The bands are 60 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, and 8 kHz.
• HPF controls the high-pass filter cutoff frequency.
• LPF controls the low-pass filter cutoff frequency.
• UNMUD controls a dynamic EQ that helps reduce low-frequency build-up, especially during palm-muted high-gain playing.

RACK/SFX TAB

ECO

ECO draws from classic 70s tape echoes, where repeats carry tone, movement, and a little unpredictability.

• TIME controls delay time in milliseconds when SYNC is off, or rhythmic subdivisions when SYNC is on.
• FEEDBACK controls the amount of delay repetition. The range runs from 1% (one repeat) to 150%, where values above 100% self-oscillate.
• VIBRATO/CHORUS chooses the type of modulation applied to the repeats.
• DEPTH controls the amount of modulation applied to the repeats.
• M/S sets the delay mode: M for mono and S for stereo. In mono-to-mono, the delay is locked to M.
• MIX controls the wet/dry balance.
• LEVEL controls the output level of the rack unit.
• POWER toggles bypass. When the LED is on, the unit is active.

WHOLE LOTTA VERB

WHOLE LOTTA VERB sits between a classic plate and a hall reverb, combining two stages to create a distinctive sense of space and sustain.

• PREDLY controls how long the signal waits before the reverb starts.
• DECAY controls the length of the first reverb stage.
• TAIL controls the dry/wet level of the second reverb stage, added in series after the first.
• HPF controls the high-pass filter applied to the wet reverb signal after the reverb stage and before MIX.
• LPF controls the low-pass filter applied to the wet reverb signal after the reverb stage and before MIX.
• MIX controls the wet/dry balance.
• POWER toggles bypass. When the LED is on, the unit is active.

DOUBLE DENIM

DOUBLE DENIM is a chorus that adds width, motion, and vintage character without blurring the performance.

• RATE controls chorus speed in Hz.
• DEPTH controls the intensity and thickness of the chorus effect.
• MIX controls the wet/dry balance.
• PRE/POST changes the position of DOUBLE DENIM in the chain. PRE places it before ECO and WHOLE LOTTA VERB; POST places it last.
• POWER toggles bypass. When the LED is on, the unit is active.

GLOBAL SETTINGS

• INPUT controls the level fed into the plug-in.
• GATE controls the gate threshold. Attack and release are pre-set for transparency, so this is a single-knob gate.
• OUTPUT controls the final output level leaving the plug-in.
• TUNER shows or hides the tuner.
• M/DM/S selects the operating mode. Mono-to-mono and mono-to-stereo are locked to M. Stereo-to-stereo lets you switch between DM (dual mono) and S (stereo).
• ICONS indicate state by colour: white means active, dark grey means bypassed, and the selected icon appears white with a dot above it. Single-click an active icon to select it, and double-click it to bypass it.

TUNER

• 440 Hz sets the tuner reference frequency. Default is 440 Hz, with a range from 390 Hz to 470 Hz.
• TUNER switches between relaxed mode (default, tuner text appears black) and fast mode (tuner text appears blue).
• MUTE mutes the plug-in output while tuning.