Jackson Pro Series Signature Jeff Loomis Soloist SL7 Review & Prices
- From Jackson's 2022 Pro series
- Jeff Loomis Signature
- Made in South Korea
- 7 strings
- 26.5"'' scale
- 12" to 16" Fretboard Radius
- Ash top
- Basswood body
- 3-piece 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
- Jackson Standard Neck-Through neck
- 24 Jumbo frets
- Jackson Sealed Die-Cast tuners
- Compare Specs >
Our Scores and Tone Evaluation
- Heavy Metal
- Hard Rock
- Jazz
- Blues
- Funk
- Country
Jackson Pro Series Signature Jeff Loomis Soloist SL7
- Expensive Wood
- Locking Nut
- Top Brand Pickups
- Neck-Through Build
- Luminescent Inlay
- Tremolo
- Compound Radius Fretboard
- Strap Lock
- Cheap Fret Wire (NS)
- No Locking Tuners
- Made in South Korea
- No Push Knob or Extra Switch Option
- No Weight Relief
- No 21:1 Tuner Ratio
- No Retainer Bar
Price Overview
Its average competitor's price is $1550, which means that the Jackson Pro Series Signature Jeff Loomis Soloist SL7 costs around 10% more than the competition. It might be due to it having additional features, but know that you can find cheaper similar alternatives. This takes into account all instruments of the same category in our database with 7 strings and Double Locking bridge that are made in South Korea.
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Your feedback
Not all instruments are created equally. That's why it's important to have different opinions. Here's what our users who have played this instrument say. If you've played it before, help others by voting below!
Weight
VoteTuning stability
VoteNeck speed (thickness)
VoteNeck access to high frets
VoteNeck profile shape
VoteFret edges
VotePickups noise
VotePickups power
VoteIs it Easy to Play?
The Jackson Pro Series Signature Jeff Loomis Soloist SL7 meets 4 out of our 8 criteria items for beginner friendliness, which means that it's not bad for beginners, but it could be better. 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 to get used to.
New Player Friendliness
Jackson Pro Series Signature Jeff Loomis Soloist SL7- Comfortable shape
- Comfortable fretboard
- Tall frets
- Comfortable neck
- Narrow nut
- Short scale
- Locking tuners
- Easy-to-use bridge
Hand Size Comfortability
After taking into account the neck profile, scale size, fretboard radius, and nut width, we can conclude that the Jackson Pro Series Signature Jeff Loomis Soloist SL7's construction favors people with relatively small hands.
Nevertheless, this comes down in the end to personal preference. Make sure you test this guitar—or another one with similar characteristics—before buying.
Scale Length
Scale length is the distance the strings will span between the bridge and the nut. It can tell you a lot about the overall playability and tone of the instrument. A longer scale length means longer distance between frets, brighter tone and more string tension—which means lower action, but more difficult bending of the strings.
Here's the Jackson Pro Series Signature Jeff Loomis Soloist SL7's 26.5" scale length compared to other common sizes:
This scale is close to the popular 25.50" length, but adding an additional inch allows you to tune your strings lower while keeping the action low without causing fret buzz. This is useful for lower tunings, 7-string, or even classical guitars.
You want to avoid such a long scale if you don't plan to play in low tunings since the longer scale also means the frets are more separated, making it harder to play fast, especially for small hands.
Neck Profile
The neck profile tells you the thickness (neck depth) and shape in cross section. Every difference will completely change the feeling and comfortability of the neck. This is a highly subjective thing, but most players indeed prefer certain types of necks (like Cs and Ds) because they feel nice in most hands.
The Jackson Pro Series Signature Jeff Loomis Soloist SL7's neck thickness is approximately 0.79'' (20.1mm) at the first fret, and 0.85'' (21.6mm) at the twelfth.
These measurements were taken either from the official Jackson website, or, in case this information wasn't provided, by researching multiple online marketplaces and forums where owners of this model have posted their measurements.
It has a D type neck. It's similar to a C shape, and it's one of the most common shapes right now. It's a bit flatter and thinner, even though sometimes it has a bit more shoulders. It's a fast type of neck that is comfortable, and shredders love it.
Fretboard Radius
When it comes to fingerboard radius, personal preference will dictate which one is better for you. However, most people seem to agree that a more curved (lower) radius will make it easier to play chords while a less curved (higher) radius is better for soloing and bending.
The Jackson Pro Series Signature Jeff Loomis Soloist SL7 has a compound fingerboard radius of 12" to 16".
A compound radius is the best you can get because you'll get the best of both worlds. It starts curved at the nut, but it flattens as you get closer to the body. This means that you'll get great comfortability for chords on the first few frets, but also a flatter fretboard for playing solos without problems on the higher frets.
Playability compared to main competitors
Nut Width
The Jackson Pro Series Signature Jeff Loomis Soloist SL7 has a nut width of 47.6mm (1.875''). This is within the most common range of nut widths for a 7-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.
Frets
The Jackson Pro Series Signature Jeff Loomis Soloist SL7 has 24 frets. A lot of people mistakenly believe that having more frets will always be better because it gives you a higher octave. This is certainly an advantage, but there's also a disadvantage to this.
Since the fretboard will be longer, the neck pickup will need to be placed closer to the bridge. And as you may know, the further away the neck pickup is from the bridge, the warmer it sounds. This means you'll have a brighter-sounding neck pickup when using a 24-fret guitar, even if you use the same pickup on a 22-fret guitar.
It comes with nickel silver frets, so they won't last as long as stainless steel frets. If you use your instrument a lot, you might need to replace the frets after a few years. But this is unlikely as most people change instruments before this happens.
Fret Size
Finally, let's talk about fret size. Some people prefer tall frets because it's easier to press the strings and perform bends since there's less friction against the fretboard. On the other hand, some people like shorter frets because they like to touch the fretboard when playing, or because they got heavy hands and tend to press too much on the string and alter the of the note pitch accidently.
The Jackson Pro Series Signature Jeff Loomis Soloist SL7's frets are Jumbo size. This is a tall fret size that is becoming increasingly popular because it makes it easier to press down the strings cleanly. With this fret size, you won't feel the fretboard when playing, so if you press down too hard, you will get the notes out of pitch. However, this is something you can overcome by getting used to the taller size.
Playability Score
Tone Analysis
Wood will have little influence in the final tone of an electric guitar or bass. Instead, the hardware, especially the pickups, will be the most important thing to look at. Bur first, let's see the quality of the wood.
Wood
Basswood Body: This is a soft type of wood that is very light and easy to work with. It's cheaper than many other kinds of wood used for guitar building, but it doesn't mean it's low quality. In terms of sound, it accentuates the mid-range, which matches the frequencies that a Humbucker produces.
Maple Neck: This is one of the most popular types of wood used in all kinds of guitars. It's heavy, strong and compact, which makes it great for necks. However, it's also used for fretboards, bodies and tops due to its light color, resistance and beautiful patterns. When it comes to tone, it highlights the mid and high frequencies.
Ebony Fretboard: This is one of the most expensive woods there is, which is why it's mostly used for fretboards. It is dense, heavy, highly resistant and comes in a really dark color that gives any guitar a classy touch. Tone wise, it helps the high side of the spectrum and provides good sustain.
Pickups
This guitar comes with pickups from one of the top brands: Seymour Duncan. So you can expect well built pickups with great sound that shouldn't need an upgrade anytime soon.
These are active pickups, so you can expect a lot of output with a highly compressed signal that will give your tones more distortion while retaining a clear, defined sound, which is what many Heavy Metal players need. However, they have the disadvantage of sometimes lacking a fully clean sound when playing without distortion.
The Jackson Pro Series Signature Jeff Loomis Soloist SL7's configuration is HH. With this pickup combination, you'll get warmer tones and more output than using single coils. Humbucker pickups cancel the noise that single-coil suffer from, which also results in a warmer tone. This pickup combination isn't only for high-gain music like Hard Rock or Heavy Metal. Their warmness is also popular for Jazz, Indie, R&B, Blues and more.
More with the same pickups
Versatility
It comes with the popular 3-way switch that is present in most guitars. For more versatility, players tend to prefer a 5-way switch, although it all depends on what you want to use your guitar for.
Unfortunately, it doesn't come with more options for coil split or coil tapping. This makes it less versatile than some competitors.
Diagram
What music genre is it good for?
As a 7 strings, Solid Body guitar with HH configuration and Active pickups, we'd recommend it for genres like Heavy Metal or similar. However, you can use almost any guitar for any genre. This is just the typical type of music for this particular one.
Sound Score
Build Quality Analysis
Country of Origin
Knowing where the instrument is produced is a good way to know how well it's built. Some manufacturing countries are known for having higher quality standards. For example, most expensive instruments are made in the US or Japan, but there are some exceptionally great countries—like South Korea—that are building a good reputation.
The Jackson Pro Series Signature Jeff Loomis Soloist SL7 is made in South Korea. Guitars made here are well-built and tend to have good quality control, even though they focus on mass production. This used to be the most premium option just below Japan or the US, but other countries like Indonesia are becoming great competitors because of even cheaper labor without sacrificing quality.
Bridge
Floyd Rose 1500 Series Double-Locking Tremolo: With this type of tremolo bridge, you'll be able to perform dive bombs and pinch harmonics without getting out of tune. This type of bridge gives you the best versatility, but it also makes it harder to set up your guitar correctly, especially when changing your strings.
Nut Material
Another important thing to analyze is the nut material, as it's one of the most important aspects that can affect the sound and playability of your guitar. A well-cut nut will make sure it stays in tune and will make it more comfortable to play.
In this case, the Jackson Pro Series Signature Jeff Loomis Soloist SL7 has a Locking nut. Instead of the typical nut, this nut locks the strings in place and will make them stay in tune even after heavy tremolo use. This type of nut provides the best tune stability, but they also make the guitar more expensive.
Unfortunately, it doesn't come with a retainer bar for the nut, which would be a helpful addition. Without it, the strings will change pitch once you lock down the nut, so you'll have to make more micro-adjustments at the bridge to tune it correctly.
Neck Joint
The neck joint is the part where the neck of the guitar meets the body. There are three main techniques to attach both parts together: Set-In, Bolt-On and Neck-Through. The latter two provide different advantages, although neck-throughs are the most expensive.
This guitar has a Neck-Through neck joint. Many people believe a neck-through build delivers the best sustain because some of the vibrations from the neck aren't lost like with other neck joints. However, no one has been able to prove this. What we know is that a neck-through build is usually the most comfortable when playing the upper frets because there's nothing on your way at the neck-body joint.
Build Quality Score
All Specs
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