Metallica’s guitar tone is known for its tight, aggressive and highly controlled sound, especially on classic albums like Master of Puppets and Ride the Lightning. A key part of shaping this tone came from EQ pedal and EQ-based rack processing used in their signal chain.
They used a rack-mounted Aphex EQF-2 parametric equalizer, which functions similarly to an EQ pedal in tone shaping, alongside the built-in parametric EQ section of the Mesa/Boogie Mark IIc+ amplifier. This combination allowed precise control over frequencies, tightening the low end while enhancing clarity and attack.
Understanding this EQ pedal setup helps explain how Metallica achieved their signature thrash metal tone, and how guitarists today can recreate similar EQ shaping using both vintage gear and modern EQ pedals.
Wichtigste Erkenntnisse
- Metallica’s legendary tone relied on a dual-EQ setup: Aphex EQF-2 in the effects loop + Mesa/Boogie Mark IIc+ built-in EQ
- They boosted low frequencies (120Hz) and cut midrange (1.2kHz) to create their signature “scooped” sound
- Using two parametric EQs with different Q values made their tone extremely difficult to copy with a single EQ
- Modern guitarists can achieve a similar sound using pedals like the Musontek Remeowdel
- Always experiment with EQ settings to adapt the tone to your own guitar and amplifier
What EQ Equipment Did Metallica Use?
Aphex EQF-2 Parametric Equalizer
The core of Metallica’s studio EQ setup was the Aphex EQF-2, a professional rack-mounted parametric equalizer. Unlike graphic EQs with fixed frequency bands, parametric EQs allow precise control over three parameters:
- Frequenz: The exact pitch you want to boost or cut
- Gain: How much you boost or cut that frequency
- Q: The width of the frequency band affected
Metallica placed the Aphex EQF-2 in the effects loop of their Mesa/Boogie Mark IIc+ amplifiers. This allowed them to shape the already distorted signal from the amplifier, rather than the clean signal before distortion.
Mesa/Boogie Mark IIc+ Built-in Parametric EQ
The second part of their setup was the parametric EQ built directly into the Mesa/Boogie Mark IIc+ amplifier. This amp is famous for its aggressive high-gain distortion, which provided the foundation of Metallica’s sound.
By using two parametric EQs in series, Metallica could achieve extremely precise tone shaping that was impossible with a single EQ. They used different Q values on each EQ: a wide Q on the amp’s EQ for broad adjustments, and a narrow Q on the Aphex EQF-2 for surgical cuts and boosts.
💡 The Secret Sauce: Most guitarists only use one EQ. Metallica’s dual-EQ setup allowed them to create a thick low end, sharp high end and a scooped midrange that cut through the mix without sounding muddy.
How These EQs Shaped Metallica’s Iconic Tone
The dual-EQ setup allowed Metallica to solve a common problem in heavy metal: how to make distorted guitars sound both heavy and clear.
Their signature tone was based on three key adjustments:
- Boost 120Hz: Added thickness and weight to the rhythm guitar
- Cut 1.2kHz: Removed the “muddy” midrange that can make distorted guitars sound unclear
- Boost 5kHz: Added sharpness and attack to the pick attack
This created the famous “scooped midrange” sound that defined thrash metal in the 1980s. On Master of Puppets, they used the following base settings on their Mesa/Boogie Mark IIc+ amplifiers:
| Einstellung | Value |
|---|---|
| Bass | 9 |
| Mids | 4 |
| Treble | 8 |
| Gain | 10 |
| Presence | 6 |
The Aphex EQF-2 was then used to fine-tune this base tone for each song and each guitarist. James Hetfield’s rhythm tone had a slightly more pronounced low end, while Kirk Hammett’s lead tone had more high end for solos.
Metallica’s EQ Setup in Studio and Live
Studio Configuration
In the studio, Metallica used an extensive EQ setup to perfect their tone:
- Both Hetfield and Hammett used identical dual-EQ setups
- Engineers often added a third EQ at the mixing board for final adjustments
- They experimented with different microphone placements and EQ settings for each guitar track
- Multiple layers of rhythm guitars were recorded and EQ’d slightly differently to create a massive wall of sound
This setup was used on their three most influential albums: Ride the Lightning (1984), Master of Puppets (1986) and …And Justice for All (1988).
Live Configuration
For live performances, Metallica simplified their setup slightly:
- They relied primarily on the Mesa/Boogie Mark IIc+’s built-in parametric EQ
- The Aphex EQF-2 was kept as a studio-only tool
- This allowed them to make quick adjustments between songs
- Their live tone was intentionally slightly more aggressive than their studio tone to cut through large venues
In recent years, Metallica has switched to Fractal Axe-FX digital modelers for live shows. These units accurately replicate their original dual-EQ setup and allow them to store presets for every song in their catalog.
Exact EQ Settings for Classic Metallica Songs
Use these settings as a starting point to recreate the tone of your favorite Metallica songs. Adjust slightly to match your guitar and amplifier:
| Song | Bass | Mids | Treble | Gain | Reverb |
|---|---|---|---|---|---|
| Master of Puppets (James) | 9 | 4 | 8 | 10 | K.A. |
| Enter Sandman (James) | 9 | 4 | 9 | 8 | 3 |
| Enter Sandman (Kirk) | 9 | 2 | 5 | 9 | 3 |
| One (James) | 8 | 3 | 7 | 10 | 3 |
| One (Kirk) | 7 | 7 | 8 | 7 | 4 |
| Fade to Black (Solo) | 8 | 4 | 7 | 10 | 4 |
| Ride the Lightning | 10 | 2 | 6 | 10 | K.A. |
| For Whom the Bell Tolls | 10 | 4 | 7 | 9 | K.A. |
🎸 Pro Tip: Always start with the amplifier’s EQ set flat, then make small adjustments. It’s better to cut frequencies you don’t want than to boost too much.
Modern Alternatives to Metallica’s Vintage EQ Setup
The original Aphex EQF-2 and Mesa/Boogie Mark IIc+ are now rare and expensive vintage gear. Fortunately, there are many modern alternatives that can achieve a similar tone.
Musontek Remeowdel
The Musontek Remeowdel is the best modern option for recreating Metallica’s tone. This analog parametric EQ pedal offers:
- Precise control over bass, mid and treble frequencies
- Up to ±15dB of boost or cut per band
- True bypass switching to preserve your guitar’s natural tone
- Compact pedalboard-friendly design
It works equally well in front of your amplifier for pre-distortion EQ or in the effects loop for post-distortion shaping, just like Metallica’s original Aphex EQF-2.
Other Popular Options
- Boss GE-7: Affordable 7-band graphic EQ, great for beginners
- MXR Zehnband-EQ: More flexible 10-band graphic EQ with wider frequency range
- MXR 10-Band EQ: Professional-grade parametric EQ with studio-quality performance
Essential Companion Pedals
To complete your Metallica tone, add these pedals to your setup:
- Ibanez TS9 Tube Screamer: Boosts the amplifier’s front end and adds midrange bite
- Boss NS-2 Noise Suppressor: Reduces unwanted noise from high-gain distortion
- Pro Co RAT: Adds extra distortion for a more aggressive tone
Schlussfolgerung
Metallica’s iconic guitar tone was achieved through precise EQ shaping rather than high gain alone. By combining the Aphex EQF-2 with the Mesa/Boogie Mark IIc+ parametric EQ, they were able to control frequency balance, tighten the low end and maintain clarity at high distortion levels.
For guitarists aiming to recreate this level of tonal control, EQ pedals remain an essential part of modern rig setups. At Musontek, we design and produce guitar effects pedals focused on accurate tone shaping and reliable performance. Our Remeowdel parametric EQ pedal delivers precise frequency control and flexible adjustment, making it suitable for both classic metal tones and modern sound design. Visit our website to explore EQ pedal options and customization solutions.
FAQ
What EQ pedal did Metallica use for their classic albums?
Metallica used the rack-mounted Aphex EQF-2 parametric equalizer in the effects loop of their Mesa/Boogie Mark IIc+ amplifiers. They also used the amplifier’s built-in parametric EQ to create their dual-EQ setup. This combination was used on all their classic 1980s albums.
Can I get Metallica’s tone with a single EQ pedal?
While you can get close with a single good EQ pedal, you will never achieve the exact Metallica tone. Their sound relied on two parametric EQs working together to create extremely precise frequency shaping. For the best results, use two EQs: one in front of your amp and one in the effects loop.
What is the best modern EQ pedal for Metallica tone?
The Musontek Remeowdel is the best modern option. Its analog circuitry and precise parametric controls make it perfect for recreating the sharp, aggressive tone of classic Metallica. It is also much more affordable and portable than the vintage Aphex EQF-2.
Did Metallica use the same EQ settings for all their albums?
No. Their EQ settings evolved over time. On their early albums (Kill ‘Em All, Ride the Lightning), they had an extremely scooped midrange. In the 1990s (The Black Album, Load), they added more midrange for a fuller, more rock-oriented sound.
Do I need a parametric EQ or is a graphic EQ enough?
A parametric EQ is better for recreating Metallica’s tone because it allows you to target the exact frequencies they used. A graphic EQ can get you close, but it won’t give you the same level of precision.
