1. Rematadoview
The Keeley Dark Side Fuzz Mod Workstation Pedal is a versatile multi-effects unit designed for guitarists seeking a comprehensive palette of tones. It integrates three distinct effect types: Fuzz, Delay, and Modulation. This pedal is engineered to provide a transparent Big Fuzz, a selection of 12 multi-head tape-style delays, and various modulation effects including Flanger, Rotary Speaker Cabinet, U-Vibe, and Phaser. Its design allows for extensive sound shaping, making it a powerful tool for creative expression.

Figura 1: Arriba view of the Keeley Dark Side Fuzz Mod Workstation Pedal.
2. Características
- Fuzz Section: Engineered for a transparent Big Fuzz tone, reminiscent of classic transistor-based fuzzes.
- Sección de retardo: Features 12 distinct multi-head tape-style syncopated delays.
- Modulation Section: Offers a selection of Flanger, Rotary Speaker Cabinet, U-Vibe, and Phaser effects.
- Expression Pedal Port: Allows for external control over certain parameters, enhancing real-time manipulation.
- Effect Order Switch: Provides flexibility to change the signal path order of the Fuzz and Modulation/Delay sections.
- Requisito de enerxía: Operates on 9VDC Center Negative power supply.
3. Controis e conexións
Familiarize yourself with the pedal's controls and connections as illustrated below.

Figure 2: Labeled diagram of the Keeley Dark Side Pedal controls.
Descricións dos controis:
| Non. | Control | Descrición |
|---|---|---|
| 1 | Entrada 9VDC | Power input for a standard 9VDC center-negative power supply. |
| 2 | FÓRA Jack | Audio output to amplifier or next pedal in signal chain. |
| 3 | EN Jack | Audio input from guitar or previous pedal. |
| 4 | EXP Jack | TRS Expression Pedal input for external control. |
| 5 | ORDER Switch | Toggles the order of Fuzz and Modulation/Delay effects. |
| 6 | MOD Level | Controls the output level of the Modulation/Delay section. |
| 7 | FUZZ Level | Controls the output level of the Fuzz section. |
| 8 | BLEND/TAPE HEAD Knob | Blends dry and wet signal for modulation, selects tape head programs for delay. |
| 9 | DEPTH/TIME Knob | Adjusts modulation depth or delay time. |
| 10 | RATE/FDBK Knob | Adjusts modulation rate or delay feedback. |
| 11 | Botón FILTRO | Shapes the tone of the Fuzz effect. |
| 12 | Botón FUZZ | Controls the amount of fuzz gain. |
| 13 | DELAY/MOD Switch | Selects between Delay and Modulation modes. |
| 14 | FUZZ Toggle Switch | Selects between Flat, Scoop, and Full fuzz voicings. |
| 15 | MOD Footswitch | Engages/disengages the Modulation/Delay section. |
| 16 | FUZZ Footswitch | Engages/disengages the Fuzz section. |
Conexións do panel lateral:

Figura 3: Lateral view showing input, output, and expression pedal jacks.
- Entrada (IN): Connect your guitar or the output of a preceding effect pedal here.
- Saída (OUT): Connect this to your amplifier's input or the input of the next effect pedal.
- Expression (EXP): Connect a TRS expression pedal for real-time control of selected parameters.
- Entrada 9VDC: Connect a regulated 9VDC center-negative power supply.
4. Configuración
- Conexión de alimentación: Connect a standard 9VDC center-negative power supply (not included) to the 9VDC input jack on the pedal. Ensure the power supply meets the specified voltage and polarity requirements to prevent damage.
- Conexión de entrada: Connect your guitar or the output of your last pedal in the signal chain to the 'IN' jack on the pedal using a standard 1/4-inch instrument cable.
- Conexión de saída: Connect the 'OUT' jack of the pedal to your amplifier's input or the input of the next pedal in your signal chain using a standard 1/4-inch instrument cable.
- Expression Pedal (Optional): If using an expression pedal, connect it to the 'EXP' jack using a TRS cable.
- Configuración inicial: Before powering on, set all knobs to their middle positions and ensure both footswitches are disengaged (LEDs off).
5. Funcionamento
5.1 Fuzz Section
- Engaging Fuzz: Press the FUZZ footswitch to activate the fuzz effect. The corresponding LED will illuminate.
- FUZZ Knob: Adjusts the amount of fuzz gain. Higher settings produce more saturation and sustain.
- FILTER Knob: Shapes the tone of the fuzz. Experiment with this knob to find your desired frequency response, from darker to brighter tones.
- FUZZ Toggle Switch: Selects between three distinct fuzz voicings:
- PISO: A balanced, full-range fuzz tone.
- SCOOP: Scoops the mid-range frequencies, often used for a classic Big Muff-style sound.
- COMPLETO: Boosts the low-end and overall output for a thicker, more powerful fuzz.
- FUZZ Level Knob: Controls the overall output volume of the fuzz effect.
5.2 Modulation and Delay Section
- Engaging Mod/Delay: Press the MOD footswitch to activate the modulation or delay effect. The corresponding LED will illuminate.
- DELAY/MOD Switch: Toggles between Delay and Modulation modes.
- MOD Level Knob: Controls the overall output volume of the modulation or delay effect.
Modo de retardo:
- BLEND/TAPE HEAD Knob: In Delay mode, this knob selects one of 12 multi-head tape delay programs. Each program offers a unique rhythmic pattern of repeats. Refer to the Tape Head Matrix for details.
- DEPTH/TIME Knob: Adjusts the delay time, from short slap-back echoes to long, ambient repeats.
- RATE/FDBK Knob: Controls the feedback (number of repeats) of the delay. Higher settings result in more repeats.

Figure 4: Keeley Tape Head Matrix for Delay Programs.
Modo de modulación:
- BLEND/TAPE HEAD Knob: In Modulation mode, this knob blends the dry signal with the wet (effected) signal.
- DEPTH/TIME Knob: Adjusts the intensity or depth of the selected modulation effect.
- RATE/FDBK Knob: Controla a velocidade ou a taxa do efecto de modulación seleccionado.
- Tipos de modulación: The pedal offers Flanger, Rotary Speaker Cabinet, U-Vibe, and Phaser. The specific modulation type is selected via internal settings or a combination of knob positions (refer to the full product manual for advanced details if available).
5.3 Expression Pedal Functionality
When an expression pedal is connected to the EXP jack, it can be assigned to control various parameters within the Modulation or Delay section, such as Delay Time, Modulation Rate, or Blend. Consult the full product manual for specific assignments and calibration instructions.
5.4 Effect Order Switch
The ORDER switch allows you to change the internal signal flow of the Fuzz and Modulation/Delay sections. This significantly impacts the overall tone and interaction between the effects:
- Fuzz First: The fuzz effect processes the signal before the modulation/delay. This is a common setup for classic fuzz tones with trailing effects.
- Mod/Delay First: The modulation/delay effect processes the signal before the fuzz. This can lead to unique and experimental sounds, where the fuzz acts on the modulated or delayed signal.
6. Mantemento
- Limpeza: Usa un pano suave e seco para limpar o exterior do pedal. Evita produtos de limpeza abrasivos ou solventes.
- Almacenamento: Garda o pedal nun lugar fresco e seco, lonxe da luz solar directa e de temperaturas extremas.
- Potencia: Desconecte sempre a fonte de alimentación cando non se use o pedal durante períodos prolongados.
- Conexións: Comprobe periodicamente todas as conexións dos cables para detectar desgaste. Asegúrese de que os conectores estean libres de po e residuos.
7 Solución de problemas
- Sen son:
- Comprobe todas as conexións dos cables (guitarra a IN, OUT a amp).
- Asegúrese de que a fonte de alimentación estea conectada correctamente e funcione.
- Verify that the pedal is engaged (LEDs illuminated for active effects).
- Check the volume knobs on the pedal, guitar, and ampmáis vivo.
- Fuzz Not Engaging/Working:
- Ensure the FUZZ footswitch is pressed and its LED is on.
- Check the FUZZ knob setting; ensure it's not at minimum.
- Test with different cables and power supply.
- If the MOD section works but Fuzz does not, there might be an internal issue requiring professional service.
- Ruído/zunido excesivo:
- Ensure you are using a regulated 9VDC center-negative power supply. Unregulated or incorrect power supplies can cause noise.
- Check for ground loops in your setup.
- Move the pedal away from power transformers or other sources of electromagnetic interference.
- Proba con diferentes cables.
- Effects Not Modulating/Delaying Correctly:
- Ensure the MOD footswitch is pressed and its LED is on.
- Verify the DELAY/MOD switch is in the desired position.
- Adjust the DEPTH/TIME and RATE/FDBK knobs.
- For delay, ensure the BLEND/TAPE HEAD knob is set to an active program.
8. Especificacións
| Especificación | Valor |
|---|---|
| Peso do elemento | 13.7 onzas |
| Dimensións do produto | 6.75 x 4.37 x 3.25 polgadas |
| Número de modelo do artigo | KDark |
| Nome da cor | Negro |
| Interface de hardware | Audio de 1/4 de polgada |
| Formato de sinal | Analóxico |
| Fonte de enerxía | Eléctrico con cable |
| Voltage | 9 voltios |
| Ampera | 15 millónsamps |
| Estilo | Delay, Expression, Modulation |
9. Garantía e soporte
For warranty information and technical support, please refer to the official Keeley Electronics websitio web ou póñase en contacto directamente co servizo de atención ao cliente. Garde o comprobante de compra para calquera reclamación de garantía.





