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Jackson X Series Signature Scott Ian King V KVXT
Jackson USA Signature Jeff Loomis Kelly
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Playability
80
Sound
64
Build
60
Value
73
Score
68
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Playability
77
Sound
78
Build
87
Value
66
Score
81
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Side to side spec comparison >

Jackson X Series Signature Scott Ian King V KVXT vs USA Signature Jeff Loomis Kelly

Reasons to Get
Jackson X Series Signature Scott Ian King V KVXT over USA Signature Jeff Loomis Kelly

Tone Knobs
1 vs 0
More tone control
Bridge
Fixed vs Floyd Rose
Good sustain and needs no set-up
Scale Length
24.75'' (628.7mm) vs 25.5'' (647.7mm)
Easier bending, shorter fret separation and warmer natural tone
Pickups Power
Passive vs Active
Cleaner sound and no battery needed
Value Score
73 vs 66
Better price/quality relationship

Reasons to Get
Jackson USA Signature Jeff Loomis Kelly over X Series Signature Scott Ian King V KVXT

Country of Manufacturing
United States vs Indonesia
Built with higher quality standards
Decorative Top
Sandblasted Ash vs None
Finished with beautiful natural wood patterns
Fret Material
Stainless Steel vs Nickel Silver
Best fret material that will last forever
Pickups Brand
Seymour Duncan vs None
Pickups from a renown brand
Nut Material
Locking vs Plastic
Best tuning stability for intense tremolo usage
Number of Frets
24 vs 22
Allows to reach higher notes
Luminescent Sidedots
Yes vs None
Assists you when playing in dark environments
Bridge
Floyd Rose vs Fixed
Allows intense vibratos and techniques like Dive Bombs
Scale Length
25.5'' (647.7mm) vs 24.75'' (628.7mm)
Lower action and brighter natural tone
Pickups Power
Active vs Passive
More output

Other Key Differences
Jackson X Series Signature Scott Ian King V KVXT vs USA Signature Jeff Loomis Kelly

Bridge Pickup
Duncan Designed HB-103B vs Seymour Duncan Jeff Loomis Signature Blackouts
Different Bridge Pickup
Neck Pickup
Duncan Designed HB-103N vs Seymour Duncan Jeff Loomis Signature Blackouts
Different Neck Pickup
Body Wood
Mahogany vs Ash
Different Body Wood
Fretboard Wood
Laurel vs Ebony
Different Fretboard Wood
Nut Material
Plastic vs Locking
Different Nut Material

Shared Features
Jackson X Series Signature Scott Ian King V KVXT vs USA Signature Jeff Loomis Kelly

Neck Wood
Maple
Same Neck Wood
Headstock
6
Same Headstock
Strings
6
Same playing style
Body Type
Solid Body
Feedback free
Switch Positions
3
Same pickups versatility
Volume Knobs
1
Same volume control
Pickups
HH
High output without hum
Neck Thickness at 1st Fret
0.775'' (19.7mm)
Same neck comfortability
Neck Thickness at 12th Fret
0.835'' (21.2mm)
Same neck comfortability
Nut Width
1.688'' (42.9mm)
Same string separation at the nut
Paint Finish
Poly
Resistant paint that ages well
Compound Radius
12" to 16"
Balanced playability for chords and single-notes
Neck Profile Type
D
Thin and flat neck for playing fast
Neck Joint
Neck-Through
Stronger neck and easier access to upper frets
Type of Frets
Jumbo
You won't feel the fretboard when pressing down the strings

Common Strengths

  • Neck-Through Build
  • High-Quality Frets
  • Compound Radius Fretboard
  • Expensive Wood

Common Weaknesses

  • Pickup Alter Switch/Knob
  • Weight Relief
  • Stays in Tune (Evertune)
  • Strap Lock
  • 21:1 Tuner Ratio
  • Active/Passive Preamp

Table of Contents

Price History Comparison

Jackson X Series Signature Scott Ian King V KVXT Prices

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Jackson USA Signature Jeff Loomis Kelly Prices

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Which One is Better Overall?

After going through our comparison algorithm, the results show that the Jackson USA Signature Jeff Loomis Kelly is probably the better product overall with its final score of 81 compared to the Jackson X Series Signature Scott Ian King V KVXT's 68 score, which is a significant difference.

The Jackson USA Signature Jeff Loomis Kelly wins when it comes to sound, build quality. On the other hand, the Jackson X Series Signature Scott Ian King V KVXT has the upper hand when it comes to playability, value for the money.

If you got small hands, none of these instruments will make a big difference when it comes to comfortability.

Which One is Better for Beginners?

Both meet 4 out of our 8 criteria items for beginner friendliness. This takes into account the type of frets, scale length, nut width, bridge type, fretboard radius, and neck profile to determine the easiest combination for new players. If you're looking for your first guitar to learn how to play, you can't go wrong with either of them.

New Player Friendliness

Jackson X Series Signature Scott Ian King V KVXT
  • Easy-to-use bridge
  • Comfortable fretboard
  • Tall frets
  • Comfortable neck
  • Comfortable shape
  • Narrow nut
  • Short scale
  • Locking tuners

New Player Friendliness

Jackson USA Signature Jeff Loomis Kelly
  • Comfortable shape
  • Comfortable fretboard
  • Tall frets
  • Comfortable neck
  • Narrow nut
  • Short scale
  • Locking tuners
  • Easy-to-use bridge

Nevertheless, when it comes to choosing an instrument, you should pick the one more compatible with your personal style. Still, below we'll try you to give you our results as objectively as it's possible to help you decide.

Jackson X Series Signature Scott Ian King V KVXT Overview

  • From Jackson's 2019 Artist Signature series
  • Scott Ian Signature
  • Made in Indonesia
  • 6 strings
  • 24.75"'' scale
  • 12" to 16" Fretboard Radius
  • Mahogany body
  • Maple neck
  • Laurel fretboard
  • Bridge pickup: Duncan Designed HB-103B (Humbucker/Passive)
  • Neck pickup: Duncan Designed HB-103N (Humbucker/Passive)
  • 1 volume and 1 tone Dome knobs
  • 3-way Switch
  • Jackson TOM-Style Adjustable with Anchored Tailpiece bridge
  • Speed Neck-Through neck
  • 22 Jumbo frets
  • Jackson Sealed Die-Cast tuners
  • Compare Specs >

Jackson USA Signature Jeff Loomis Kelly Overview

  • From Jackson's 2019 Artist Signature series
  • Jeff Loomis Signature
  • Made in United States
  • 6 strings
  • 25.5"'' scale
  • 12" to 16" Fretboard Radius
  • Sandblasted Ash top
  • Ash body
  • Quartersawn Maple neck
  • Ebony fretboard
  • Bridge pickup: Seymour Duncan Jeff Loomis Signature Blackouts (Humbucker/Active)
  • Neck pickup: Seymour Duncan Jeff Loomis Signature Blackouts (Humbucker/Active)
  • 1 volume and 0 tone Dome knobs
  • 3-way Switch
  • Floyd Rose 1500 Series Double-Locking Tremolo bridge
  • Speed Neck-Through neck
  • 24 Jumbo Stainless Steel frets
  • Sperzel Die-Cast tuners
  • Compare Specs >

Sound Quality Comparison

The wood used in an electric guitar or bass is not as important to determine the final tone. However, some people prefer specific wood types, so we'll take a look at those first. Then, we'll take a look at the electronics to determine the versatility and sound quality of each instrument.

Woods Used in Both

Maple wood pattern used for guitar building
Maple

Maple is one of the most popular necks for good reasons. It is a strong wood that is relatively cheap to make and looks beautiful. The highest quality maple is the hardest that comes from North America. Find out more about Maple.

Woods Used in the Jackson X Series Signature Scott Ian King V KVXT

Laurel wood pattern used for guitar building
Laurel
Mahogany wood pattern used for guitar building
Mahogany

There are many types of Laurel, but East Indian is the most common for guitar building. Its color can vary from dark to light brown with black lines. Many people find its tonality similar to Rosewood, which favors the warmer frequencies. Find out more about Laurel.

Mahogany is a fairly rare wood nowadays. It's used mostly for bodies due to its relatively lightweight. Gibson popularized it with their Les Paul guitars during their golden years, so this wood has a lot of good reputation behind it. The most expensive type comes from South America and it's still used by Gibson even today. Find out more about Mahogany.

Woods Used in the Jackson USA Signature Jeff Loomis Kelly

Ebony wood pattern used for guitar building
Ebony
Ash wood pattern used for guitar building
Ash

Ebony is a high-end wood, so it is not cheap. It's only used for fretboards because it's also very heavy. It does an excellent job as a durable material while looking elegant. Find out more about Ebony.

Ash is a type of wood that Fender used almost exclusively in the 50s, and it's still used by many brands. It's a dense wood with a light color that works well for a transparent, natural finish because of its beautiful patterns. In terms of sound, it's known for emphasizing the mid and high frequencies, but with strong low end. Find out more about Ash.

Winner: Jackson USA Signature Jeff Loomis Kelly.

Pickup Configuration

Both pickup configurations are HH. Double Humbucker (HH) is the choice for people who want a fuller, more round sound with tons of mids and lows. Humbuckers also get rid of the hum noise that plague single-coil pickups. They can work out for almost any genre going from Djent to even Jazz.

Pickups Quality

The Jackson USA Signature Jeff Loomis Kelly pickups from a more specialized brand than the Jackson X Series Signature Scott Ian King V KVXT. Its pickups should give you a fuller, richer sound, although it all depends on what type of music you're going to play. We recommend these pickups for Heavy Metal and similar genres.

We found the same or similar pickups to the Jackson USA Signature Jeff Loomis Kelly's online:

The Jackson X Series Signature Scott Ian King V KVXT's pickups are Passive while the Jackson USA Signature Jeff Loomis Kelly's are Active.

Passive pickups are what most guitars use. These have a normal output that works well for most genres. However, Active pickups are the preferred choice of heavy metal players because they offer extra output thanks to their 9v battery, which results in a heavier, more distorted sound. Bear in mind that achieving a completely clean tone with them won't be easy. So if you want to also use clean tones, you might want to avoid Active pickups.

Winner: Jackson USA Signature Jeff Loomis Kelly.

Versatility Comparison

Some instruments offer you more ways to explore your creativity than others. Below you'll find how both compare when it comes to versatility.

Switch Options

Both are equal when it comes to the pickup switching option.

Neither of them come with some kind of coil split or pickup mod option. This makes both lacking in terms of versatility.

They both share the following switching options:

Jackson X Series Signature Scott Ian King V KVXT and Jackson USA Signature Jeff Loomis Kelly pickups switch and push knobs diagram
Jackson X Series Signature Scott Ian King V KVXT and Jackson USA Signature Jeff Loomis Kelly's switch options

When evaluating versatility, we also take into consideration bridge and neck joint type, number of frets, switch options, amount of pickups and more.

Winner: Jackson USA Signature Jeff Loomis Kelly.

Final Sound Quality Scores

Jackson X Series Signature Scott Ian King V KVXT
Pickups 60
Sustain 80
Versatility 49
Tuning Stability 65
Sound 64
Jackson USA Signature Jeff Loomis Kelly
Pickups 85
Sustain 85
Versatility 57
Tuning Stability 85
Sound 78

Build Quality Comparison

When it comes to build quality, we like to take into account everything used to build the instrument. This includes materials, hardware and the quality control expected depending on the country where it was built. Let's see how the Jackson X Series Signature Scott Ian King V KVXT compares to the Jackson USA Signature Jeff Loomis Kelly.

Country of Origin

The manufacturing country can tell a lot about the build quality of an instrument. The Jackson X Series Signature Scott Ian King V KVXT is built in Indonesia while the Jackson USA Signature Jeff Loomis Kelly is made in United States.

Indonesia is becoming the most popular country for guitar building because they can make good instruments for a low price. Some people think that they're 'the new China' when it comes to build quality. But the truth is that Indonesian guitars are more consistent, although Chinese quality has improved a lot in the last few years.

The United States is considered one of the best electric guitar manufacturers in the world. A guitar made in this country is supposed to have world-class quality control. Nowadays, guitars made in other countries can beat some of the ones made in the US, but most of the time, this country offers the best you can get. Of course, that comes at a price.

Winner: Jackson USA Signature Jeff Loomis Kelly

Nut Material

If you want your guitar to stay in tune and sound good, you need a well cut nut. Nut quality can be inconsistent even when comparing two copies of the same model. The best way to make sure you're nut will be well done is by getting a nut made by an expert company like TUSQ or Micarta.

The Jackson X Series Signature Scott Ian King V KVXT has a Plastic nut. This is a low-quality nut that you might want to consider upgrading soon. Bone and TUSQ nuts are the best for guitars with a fixed or simple tremolo bridge.

On the other hand, the Jackson USA Signature Jeff Loomis Kelly comes with a Locking nut. Instead of a regular nut, this guitar has a locking system that will lock down the strings at the nut, preventing it from getting out of tune. It removes one of the disadvantages of tremolo bridges, tune stability.

Winner: Jackson USA Signature Jeff Loomis Kelly.

Fret Material

Most fret wire is made of nickel silver. This material eventually wears down after a lot of use and most instruments end up needing a complete fret replacement. However, some expensive models come with stainless steel frets. This is what you should aim for if you can afford it.

In this comparison, the Jackson USA Signature Jeff Loomis Kelly is the only one that has stainless steel frets. These frets will basically last for the entire life of the guitar. They will never need polishing nor replacement. And not only that, but some people also notice that bending and vibratos are much easier to perform when they upgrade to stainless steel.

Winner: Jackson USA Signature Jeff Loomis Kelly.

Bridge

The perfect bridge for you will depend on your playstyle because they all have advantages and disadvantages. However, some bridges are more expensive—like Floyd Roses and Evertunes—and thus add more value to a guitar.

The Jackson X Series Signature Scott Ian King V KVXT's brige is a Fixed. It's a simple bridge that is very beginner-friendly since it doesn't require any set-up. You can swap strings easily. It might also give more sustain since it doesn't have complex moving parts that make the strings lose vibration. However, it doesn't have the same versatility as a tremolo bridge.

On the other hand, the Jackson USA Signature Jeff Loomis Kelly's is a Floyd Rose. This is a double-locking bridge system that allows you to perform techniques like dive bombs and pinch harmonics. The locking nut allows your guitar to stay in tune even after the most intense tremolo usage. The disadvantage is that it takes more work to change the strings and set up everything correctly.

Since we need to be objective, the most expensive type of bridge will be the winner of this section. In the end, this doesn't matter if you're not going to use the bridge for its original purpose, so choose the bridge that fits your playing style better.

Winner: Jackson USA Signature Jeff Loomis Kelly.

Tuners

Both come with regular tuners. The Jackson X Series Signature Scott Ian King V KVXT's are Jackson Sealed Die-Cast while the Jackson USA Signature Jeff Loomis Kelly's are Sperzel Die-Cast

Winner: Tie.

Neck Joint

Contrary to popular belief, the difference in sustain and tone that some neck joints give to a guitar is simply unperceivable—if they're all well built. However, some of them do have advantages over the others.

Both have a Neck-Through neck joint. This neck is a lot more resistant and lets builders give the neck joint a more comfortable shape for soloing at the upper frets. The disadvantage is that they're more expensive and that if you damage your neck, you can't simply replace it like with bolt-on necks.

Winner: Tie.

Here is the list of features that were considered when choosing the winner in the Features subcategory:

Strengths & Weaknesses
Jackson X Series Signature Scott Ian King V KVXT
  • Expensive Wood
  • Neck-Through Build
  • Compound Radius Fretboard
  • Cheap Fret Wire (NS)
  • No Locking Tuners
  • Made in Indonesia
  • No High-Quality Nut
  • No Top Brand Pickups
  • No Push Knob or Extra Switch Option
  • No Weight Relief
  • No Luminescent Inlay
  • No Tremolo
  • No 21:1 Tuner Ratio
  • No Strap Lock
Strengths & Weaknesses
Jackson USA Signature Jeff Loomis Kelly
  • Stainless Steel Frets
  • Made in United States
  • Expensive Wood
  • Locking Nut
  • Top Brand Pickups
  • Neck-Through Build
  • Luminescent Inlay
  • Tremolo
  • Compound Radius Fretboard
  • No Locking Tuners
  • No Push Knob or Extra Switch Option
  • No Weight Relief
  • No 21:1 Tuner Ratio
  • No Retainer Bar
  • No Strap Lock

Final Build Quality Scores

Jackson X Series Signature Scott Ian King V KVXT
Quality of materials 41
Features 70
Quality Control 70
Build Quality 60
Jackson USA Signature Jeff Loomis Kelly
Quality of materials 75
Features 85
Quality Control 100
Build Quality 87

Playability Comparison

Let's now compare their playability. Bear in mind that the instrument will feel different depending on your hand size and play style. That's why you should always test before buying. But if you can't or want a second opinion on it, we can still take a look at each of the important measurements of the instrument for you. This way, we can predict how easy a guitar might be to play, or how different it will feel compared to the other.

Remember that, even though the difference might seem small, every inch counts when it comes to feeling of the instrument in your hands. Any variation can completely change how comfortable a guitar feels in your hands.

Nut Width

Jackson X Series Signature Scott Ian King V KVXT Nut Width
Both Guitars Have The Same Nut Width

The nut width will affect the separation between strings at the nut. In this comparison, both have a nut width of 42.9mm (1.688'').

This is within the most common range of nut widths for a 6-string guitar. It offers a good balance of string separation at the nut. It's the size that most guitarists prefer as it gives them just enough space to play open chords without muting the strings, but without spreading the strings too wide and making bar chords difficult to perform.

Scale Length

Jackson X Series Signature Scott Ian King V KVXT's Scale Length
Jackson X Series Signature Scott Ian King V KVXT's Scale Length
Jackson USA Signature Jeff Loomis Kelly's Scale Length
Jackson USA Signature Jeff Loomis Kelly's Scale Length

The scale length is one of the things that influences playability the most. This is the distance between the nut and the bridge and will affect everything from low action allowance, difficulty to perform bends, fret separation, and even tone.

The Jackson USA Signature Jeff Loomis Kelly has the longest scale: 25.5". The Jackson X Series Signature Scott Ian King V KVXT is only 24.75" long. This is a 0.75'' (19.1mm) scale length difference.

This longer scale means that the strings need more tension to get in tune. This is good if you want to avoid fret buzz, which can happen when the strings are too loose and touch the frets while vibrating. This is especially important when playing in lower tunings. This will also let you reduce the gap between fretboard and strings (low action) to make them easier to press down. However, this higher tension will also make it harder to perform bends and vibratos as the strings will feel stiffer.

This also means that the frets have a longer separation between each other, so this will make it harder for people with smaller hands when playing some chord positions.

Another characteristic of a longer scale is that it makes the guitar sound 'snappier' or brighter. This is due to the extra separation between harmonics and overtones produced by the tension. This influences tone more than any other factor (except the pickups).

Lastly, remember that you can also affect the tension of the strings by changing your string gauge. You can use a thicker gauge for more tension and a lighter one for less tension.

Neck Profile

Jackson X Series Signature Scott Ian King V KVXT Neck Profile
Both guitars have the same neck profile

No single neck shape is better than others. However, most people tend to prefer a thinner necks because it doesn't get in their way when playing fast and most hand sizes can adapt to it pretty well. However, some people still prefer thicker necks for a better grip, especially if they have big hands.

Both the Jackson X Series Signature Scott Ian King V KVXT and the Jackson USA Signature Jeff Loomis Kelly have a D-shaped neck. This is a thin and flat neck that is made for playing fast. If you prefer a neck that doesn't get in your way when soloing, this is the shape you should use. Guitarists that prefer to have a bit more grip won't like this type of neck.

Fretboard Radius

Jackson X Series Signature Scott Ian King V KVXT Fretboard Compound Radius
Jackson X Series Signature Scott Ian King V KVXT's Compound Fretboard Radius

Most guitar fretboards are not flat; they usually have a curve or arc across their width. A curved fretboard will make it easier to perform chords without muting strings, while a flatter one will make it easier to play single notes, which is good for bending and soloing in general. The best fretboards have a compound radius that varies across the fingerboard, but they're not common since they take a lot more work to build.

Both have a compound radius. This means both offer you the best craftsmanship when it comes to fretboard design. You'll have an arc to help you play chords close to the nut, while also having a flat design at the higher frets for faster soloing and easier bends.

Hand Size Comfortability

Everyone has a different hand size, and that's why it's recommended to try a guitar before buying, even if others tell you that it's comfortable to play. However, we can know whether a guitar favors small or large hands just by knowing its exact measurements.

After taking into account the scale length, nut width, neck profile and fretboard radius, we can conclude that both in this comparison favor small hands .

Jackson X Series Signature Scott Ian King V KVXT:
Big Hands
Small Hands
Jackson USA Signature Jeff Loomis Kelly:
Big Hands
Small Hands

Fret Size

Jackson X Series Signature Scott Ian King V KVXT and Jackson USA Signature Jeff Loomis Kelly Frets Size
Both have a similar Jumbo fret size

Both have a Jumbo fret size. This is one of the tallest frets you can get. You won't feel the fretboard when pressing down the strings. It will give you the best sustain and all types of chords will be easier to play. However, you can end up changing the pitch of your notes if you press too hard, which is something people used to feeling the fretboard do when trying Jumbo frets for the first time.

Final Playability Scores

Jackson X Series Signature Scott Ian King V KVXT
Bending & Vibrato Ease 85
Chord Playability 65
Solo Playability 90
Playability 80
Jackson USA Signature Jeff Loomis Kelly
Bending & Vibrato Ease 70
Chord Playability 60
Solo Playability 100
Playability 77

Specs Side-by-Side

Jackson X Series Signature Scott Ian King V KVXT vs USA Signature Jeff Loomis Kelly
General Jackson X Series Signature Scott Ian King V KVXT USA Signature Jeff Loomis Kelly
Brand: Jackson Jackson
Year: 2019 2019
Configuration: HH HH
Strings: 6 6
Made in: Indonesia United States
Series: Artist Signature Artist Signature
Colors: White, Black, Red Black
Left-Handed Version: No No
Body
Type: Solid Body Solid Body
Body Material: Mahogany Ash
Bridge: Jackson TOM-Style Adjustable with Anchored Tailpiece Floyd Rose 1500 Series Double-Locking Tremolo
Neck
Neck Joint: Neck-Through Neck-Through
Tuners: Jackson Sealed Die-Cast Sperzel Die-Cast
Fretboard: Laurel Ebony
Neck Material: Maple Quartersawn Maple
Decoration: Pearloid Block Mother of Pearl Sharkfin
Scale Size: 24.75" 25.5"
Shape: Speed Speed
Thickness: 1st Fret: 0.775'' (19.7mm) - 12th Fret: 0.835'' (21.2mm) 1st Fret: 0.775'' (19.7mm) - 12th Fret: 0.835'' (21.2mm)
Frets: 22 Jumbo Nickel Silver 24 Jumbo Stainless Steel
Fretboard Radius: 12" to 16" 12" to 16"
Nut: Plastic Locking
Nut Width: 42.9mm (1.688'') 42.9mm (1.688'')
Electronics
Bridge Pickup: Duncan Designed HB-103B (Humbucker / Passive) Seymour Duncan Jeff Loomis Signature Blackouts (Humbucker / Active)
Middle Pickup:
Neck Pickup: Duncan Designed HB-103N (Humbucker / Passive) Seymour Duncan Jeff Loomis Signature Blackouts (Humbucker / Active)
Switch: 3 Way 3 Way
Knobs: Dome Dome
Pickup Mods: None None
Volume Controls: 1 1
Tone Controls: 1 0