Guitar Pickup Review

Bare Knuckle Brute Force 7 Humbucker Set

Introduction

The Bare Knuckle Brute Force 6-string humbuckers are so much fun that leaving well enough alone was never really an option. Naturally, the next step is to bring that same attitude to the extended range. Seven strings, ceramic magnets, and enough output to make a high-gain amp sit up and pay attention. LOL!

The Bare Knuckle Brute Force 7 brings the Boot Camp series’ high-output voice to the extended range. With ceramic magnets and a thick, aggressive character, this set is aimed at players who lean toward progressive metal, thrash, hardcore, and extreme metal. If your seven-string spends most of its time on the dirty side of the amp, you’re in the right neighborhood.

The Boot Camp concept is refreshingly straightforward. Bare Knuckle offers a streamlined selection of handwound pickups built around three output and voicing options: Old Guard, True Grit, and Brute Force. Choose your pickup style, choose your voice, and get on with making noise. It’s an approachable entry point into the wider Bare Knuckle lineup without sacrificing the company’s commitment to handwound pickups.

And if the Brute Force 6 is any indication, the seven-string version has some serious ground to cover.

Brute Force 7 Black Bobbins
Brute Force 7 Black Bobbins

Background

The Brute Force occupies the high-output end of the Boot Camp lineup. Its ceramic-magnet humbuckers deliver the deep, saturated character that makes them a natural fit for heavier styles. Bare Knuckle specifically identifies progressive metal, thrash, hardcore, and extreme metal among the intended applications.

But high output alone doesn’t tell the whole story. A pickup can throw a ridiculous amount of signal at an amp and still leave the player fighting an unruly low end or a congested midrange. With a seven-string guitar, that distinction becomes even more important. There’s another string to manage, and the low B needs to remain useful when the gain gets cranked.

The Brute Force 7 promises a combination of output, weight, and controlled highs. That’s the theory. Let’s see how it plays out in an actual guitar.

BKP BRUTE FORCE 7 Black Set

Installation

The Brute Force 7 set goes into an Ibanez Universe seven-string. The familiar combination of a basswood body, 24-fret maple neck, 25.5-inch scale, rosewood fingerboard, and Edge 7 locking tremolo provides the platform.

The original wiring harness stays in place, as does the stock Ibanez Blaze single-coil in the middle position. The guitar is tuned with a low B and strung with a .009–.054 set.

The Ibby Universe switching that I’ll be covering is as follows:

Ibanez Universe Switching
Ibanez Universe Switching

The Brute Force 7 set goes into an Ibanez Universe seven-string. The familiar combination of a basswood body, 24-fret maple neck, 25.5-inch scale, rosewood fingerboard, and Edge 7 locking tremolo provides the platform.

The original wiring harness stays in place, as does the stock Ibanez Blaze single-coil in the middle position. The guitar is tuned with a low B and strung with a .009–.054 set.

That middle pickup is worth mentioning because the Universe switching system gives us more to explore than the usual neck-and-bridge humbucker routine. The stock Blaze can combine with the split Brute Force humbuckers in the appropriate switch positions, opening up some useful clean sounds alongside the obvious high-gain applications.

In other words, this isn’t just an opportunity to see how much punishment the Brute Force 7 can dish out. It’s also a chance to see whether these high-output ceramic humbuckers can behave themselves when the music calls for something cleaner.

BKP BRUTE FORCE 7 Gold Set

Evaluation

There’s a healthy dose of natural compression baked into the Brute Force 7’s voice. That helps keep the low end deep and under control, while the highs have a bigger footprint. Not necessarily brighter or sharper, just more substantial, with a greater sense of presence. The mids are a little more dominant overall, with a noticeable lean toward the low mids. In other words, this set moves some air.

Neck and Bridge

On a dirty amp channel, the neck pickup excels at lead work. Notes have plenty of body, and the substantial midrange helps solos cut through a wall of gain without getting lost in the mix. The natural compression adds to that solid, immediate feel, making this a great fit for aggressive lead playing. There’s no messing around with the Brute Force 7. Pack yourself a lunch and prepare for some seriously brutal rock voicings. LOL!

The bridge position brings the muscle for rhythm work. Power chords have a deep, substantial foundation, while the prominent low mids give riffs plenty of weight and authority. The low end stays under control, an important consideration when pushing the low B through a high-gain amp. This is a big, forceful sound without letting the bass take over the entire show.

The highs also deserve some attention. Rather than simply adding brightness or sharpness, they occupy a bigger sonic footprint, giving the overall voice more presence. Combined with the natural compression and dominant mids, the result is a thick, assertive tone suited to progressive metal, thrash, hardcore, and extreme metal.

The neck handles leads, the bridge delivers the riffage, and both bring the goods when high-gain aggression is the order of the day.

Coil Splitting

The Ibanez Universe switching system gives us a chance to explore the cleaner side of these pickups. All three pickups use ceramic magnets, yet the split Brute Force humbuckers pair surprisingly well with the stock middle Blaze single-coil in positions 2 and 4. These combinations offer a welcome change of pace, delivering clean tones that work well for the quieter passages and dynamic shifts found in modern progressive and extreme metal.

Naturally, the results depend on your amp and rig, but a versatile setup can coax some genuinely clean, usable sounds from these split-coil combinations. The Brute Force 7 may be built for the heavy stuff, but that doesn’t mean you have to spend every minute with the gain cranked.

BKP BRUTE FORCE 7 Nickel

Demo
Bare Knuckle Boot Camp Pickups | Brute Force
Boot Camp Brute Force Humbucker Demo by Connor Botherway-Hill

And an un-official demo that it think should satisfy the curiosity of most 7-string players:

Ibanez RGR5227MFX Prestige 7 String Playthrough a/ Bare Knuckle Brute Force 7

Specs

Brute Force 7 Bridge
Series – 15.543 K
Inductance – 6.103 H
Split – 7.811 K
Split – 7.772 K
Parallel – 3.893 K
Magnet – Ceramic

Brute Force 7 Neck
Series – 13.421 K
Inductance – 4.542 H
Split – 6.729 K
Split – 6.715 K
Parallel – 3.361 K
Magnet – Ceramic

BKP Brute Force Tone Chart

For those with an interest in how that matches up to the 6-string variant, check it out:

Brute Force 6-string Bridge
Series – 15.305 K
Inductance – 6.497 H
Split – 7.711 K
Split – 7.622 K
Parallel – 3.83 K
Magnet – Ceramic

Brute Force 6-string Neck
Series – 13.656 K
Inductance – 5.524 H
Split – 6.846 K
Split – 6.83 K
Parallel – 3.415 K
Magnet – Ceramic


What Do Those #s Mean?

Glad you asked! The short version is that Bare Knuckle is focused on the end result, not simply copying a six-string pickup recipe onto a seven-string platform.

Here’s why that matters. A common approach is to use the same number of wire turns for both versions. But a seven-string bobbin is longer, so those same turns use more wire. That affects more than just DC resistance. Inductance and capacitance change, too, which means the resulting pickup won’t necessarily sound the same.

The same principle applies when going from seven strings down to six. Different platforms call for more than a simple copy-and-paste approach.

There are several ways to account for those differences, including wire selection, insulation, and coil geometry. Exactly how Bare Knuckle gets there is its own business. As players, we don’t need to reverse-engineer the winding process. We just need to know that the design accounts for the differences and keeps the intended voice in mind.

The goal isn’t to duplicate the recipe. It’s to deliver the sound.

Brute Force 7 Zebra Bobbins
Brute Force 7 Zebra Bobbins

Conclusion

The Bare Knuckle Brute Force 7 delivers the thick, aggressive voice that high-gain players want, with a controlled low end, substantial mids, and enough presence to keep things from getting lost in the mix. The split-coil combinations add welcome versatility for cleaner passages.

For progressive metal, thrash, hardcore, and extreme metal, this Boot Camp set brings the goods without overcomplicating the mission.

For reference, this Bare Knuckle Boot Camp Brute Force 7 string humbucker pickup evaluation was conducted with the following: Fractal Axe-Fx II XL+ featuring Celestion Impulse Responses and Fractal MFC-101 MIDI Foot Controller. ADA MP-1 Tube Pre-Amp loaded with Tube Amp Doctor ECC83 Premium Selected tubes, using the ADA MC-1 MIDI Controller. Fryette LX II Stereo Tube Power Amplifier. Physical cabs use are Marshall 1960B, Mojotone British, and Peavey 6505 cabs loaded with Celestion Classic Series Vintage 30s and Classic Series G12M Greenbacks.

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