Dirty Haggard Audio High/Low Shelf

High/Low Shelf

£125.00

Highlights

• Transistor-based high and low shelf EQ and clean boost pedal for guitar and bass rigs
• Broad, musical tone shaping adds clarity, tightness, weight or smoothness without colouring core sound
• Responsive feel reacts naturally to picking dynamics and instrument volume changes
• Simple Low, High and Volume controls offer up to 16 dB EQ and 20 dB boost
• Original transistor-based analogue circuit delivers clean gain, low noise and consistent performance
• Hand built by Dirty Haggard Audio with focus on reliability and repeatable tone
• All-metal enclosure designed for regular gigging, transport and long-term pedalboard use
• Clear graphics remain readable on dark stages and busy pedalboards
• LED indicator provides instant on/off visibility under low-light conditions
• True bypass switching preserves signal integrity when the pedal is disengaged
• Fully analogue signal path maintains natural tone and touch sensitivity
• Practical jack and DC input placement supports tidy, space-efficient pedalboard layouts
• Covered by a manufacturer’s warranty for long-term confidence and peace of mind

Description

The Dirty Haggard Audio High/Low Shelf is a compact, transistor-based EQ and boost pedal designed to give guitarists and bass players direct, musical control over the extremes of their sound. Sitting comfortably anywhere in a signal chain, it can be used to refine an already good tone, compensate for difficult rooms or backline, or push an amplifier harder without changing its core character. Its wide operating range makes it equally useful for clean players looking for balance and clarity, edge-of-breakup rigs that need focus, and heavier setups that benefit from tighter lows or a smoother top end.

Sonically, the Dirty Haggard Audio High/Low Shelf s open and responsive, shaping the signal in a broad, natural way rather than imposing a narrow or artificial EQ curve. The low shelf affects everything below 900 Hz, adding weight and authority or trimming excess boom, while the high shelf works above that point to bring out presence and definition or gently roll off harshness. Because both shelves operate across wide frequency ranges, the result feels cohesive and amplifier-like, preserving the instrument’s natural dynamics and touch sensitivity. Used subtly it can add clarity and articulation; pushed harder it can function as a treble booster, bass booster or clean volume lift without sounding brittle or congested.

In use, the Dirty Haggard Audio High/Low Shelf feels intuitive and forgiving. Small adjustments produce clearly audible changes, making it easy to dial in by ear even at volume. The Dirty Haggard Audio High/Low Shelf responds well to picking dynamics and changes in instrument volume, encouraging experimentation rather than fighting the player. Whether tightening the low end of a bass line, taming an overly bright guitar, or adding definition to complex chords, it remains predictable and easy to control.

The control layout centres on three straightforward knobs. The Low and High controls each offer up to 16 dB of boost or cut, providing plenty of range for both corrective and creative shaping. The Volume control delivers up to 20 dB of clean output boost, allowing the pedal to drive an amp’s front end or compensate for level changes introduced by EQ adjustments. All controls are evenly tapered and responsive, making fine adjustments simple and repeatable.

At its core, the circuit is an original, transistor-based design focused on tone, consistency and reliability rather than unnecessary complexity. It delivers a clean, stable signal with low noise and a current draw of just 15 mA, making it easy to integrate into most pedalboard power setups. The pedal operates on a standard 9 V DC supply, ensuring compatibility with common power bricks and adapters.

The enclosure is all metal and built for regular use, with a solid footswitch and components chosen to withstand life on a pedalboard or in a gig bag. Its size and weight make it practical for crowded setups without feeling fragile. The graphics are clear and purposeful, keeping the controls easy to read at a glance while maintaining a distinctive look that sits comfortably alongside other pedals. Under stage lighting, the labelling remains legible, reducing guesswork during performance.

An LED indicator provides immediate visual confirmation of the pedal’s on or off status, improving usability in low-light environments and helping players keep track of their signal chain during quick changes. True bypass switching ensures that when the pedal is disengaged, the original signal passes through unaffected, preserving tone and signal integrity.

Input, output and DC power connections are sensibly positioned to keep cable runs tidy and minimise wasted space on a pedalboard, making the Dirty Haggard Audio High/Low Shelf easy to integrate into a wide range of layouts. The pedal is backed by a manufacturer’s warranty, offering reassurance of long-term reliability and support.

Overall, the Dirty Haggard Audio High/Low Shelf stands out for its broad, musical EQ curves, generous clean boost and straightforward operation. It offers practical solutions to common tonal problems while remaining inspiring to play, making it a valuable and versatile addition to the rig of any guitarist or bass player who values control, clarity and reliability.

Controls

• FOOTSWITCH: True bypass switching engages EQ and boost instantly, preserving feel and signal when off

• LOW: Broad shelf boosts or cuts lows below 900 Hz, tightening bass or adding weight

• HIGH: Broad shelf shapes frequencies above 900 Hz, enhancing clarity or reducing harsh brightness

• VOLUME: Provides clean level control up to 20 dB, balancing EQ changes or driving amplifiers

Components and Technical Specifications

• Transistor-based EQ and boost circuit delivers clean gain with natural dynamics and low noise
• True bypass switching preserves signal integrity when disengaged, preventing tone loss in complex pedalboards
• Broad high and low shelf EQ provides musical frequency shaping without narrow or artificial filtering
• Up to 16 dB boost or cut per EQ band offers wide, usable tone control
• Up to 20 dB clean output boost drives amplifiers or restores level after EQ shaping
• All-analogue signal path maintains consistent tone and responsive playing feel
• Powered by standard 9V centre negative supply (not included)
• Battery operation not supported
• Current draw measured with Truetone 1Spot mA Meter:
• Bypass: Approximately less than 10 mA
• Engaged (maximum): Approximately less than 10 mA

Current draw may vary slightly depending on control settings, circuit behaviour, and active features such as gain stages, modulation, filtering, or reverb tails. For best performance, use a high quality isolated power supply that matches the pedal’s current requirements. Always refer to the manufacturer’s recommendations, as incorrect powering may cause damage.

Enclosure Dimensions

• Depth: 112 mm / 4.4 in
• Width: 60 mm / 2.3 in
• Height: 32 mm / 1.2 in

Enclosure Weight

• 226 g
• 0.50 lbs

Official UK Dealers

FX Pedal Planet Limited and FX Pedal Planet Online Store proudly serve as UK dealers for Dirty Haggard Audio effects pedals. If we do not have the specific Dirty Haggard Audio pedal you are looking for, please reach out to us via the contacts page, and will order it on our next stock order for you at the best price and customer service.

Buy Today and Pay Over Time

To give our customers flexibility and a pleasurable shopping experience, FX Pedal Planet Online Store accepts Klarna, Afterpay, Clearpay and Google Pay.

Klarna is a smooth and safe way to get what you want today, and pay over time. Afterpay allows customers to pay in four interest free instalments, budget your spending and earn rewards when you shop.

UK Deliveries

For our UK customers, we provide FREE 24 hour DHL tracked and signed delivery, ensuring your order arrives swiftly and securely.

International Deliveries

International deliveries are dispatched with DHL, ensuring fast shipping and efficient processing through customs.

For more information on deliveries and charges, please refer to our Deliveries and Charges.

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