Reverend Greg Koch Gristle 90 vs Ibanez JEM77P
Reasons to Get
Reverend Greg Koch Gristle 90 over Ibanez JEM77P
Reasons to Get
Ibanez JEM77P over Reverend Greg Koch Gristle 90
Other Key Differences
Reverend Greg Koch Gristle 90 vs Ibanez JEM77P
Shared Features
Reverend Greg Koch Gristle 90 vs Ibanez JEM77P
Common Strengths
- High-Quality Nut
- Top Pickup Brand
Common Weaknesses
- Weight Relief
- Stays in Tune (Evertune)
- High-Quality Frets
- Compound Radius Fretboard
- From a High-Quality-Standards Country
- Luminescent Sidedots
- Strap Lock
- 21:1 Tuner Ratio
- Active/Passive Preamp
Table of Contents
Price History Comparison
These are affiliate links. We may earn a fee if you purchase after clicking. These prices are prone to error. Make sure you're buying the right product after clicking on a link from our site. We are not liable if you buy the wrong product after following these links. As an Amazon Associate site we earn from qualifying purchases.
Which One is Better Overall?
After going through our comparison algorithm, the results show that the Reverend Greg Koch Gristle 90 is probably the better product overall with its final score of 74 compared to the Ibanez JEM77P's 71 score, although not by a lot.
The Reverend Greg Koch Gristle 90 wins when it comes to playability, build quality, value for the money. On the other hand, the Ibanez JEM77P has the upper hand when it comes to sound.
If you got small hands, you'll probably feel that the Ibanez JEM77P is easier to play.
Which One is Better for Beginners?
If you're looking for your first guitar to learn how to play, the Reverend Greg Koch Gristle 90 is the better choice.
The Reverend Greg Koch Gristle 90 meets 4 out of our 8 criteria items for beginner friendliness, while the Ibanez JEM77P meets only 3. 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.
New Player Friendliness
Reverend Greg Koch Gristle 90- Comfortable shape
- Locking tuners
- Tall frets
- Comfortable neck
- Comfortable fretboard
- Narrow nut
- Short scale
- Easy-to-use bridge
New Player Friendliness
Ibanez JEM77P- Comfortable shape
- Tall frets
- Comfortable neck
- Comfortable fretboard
- 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.
Reverend Greg Koch Gristle 90 Overview
- From Reverend's 2021 Signature series
- Greg Koch Signature
- Made in South Korea
- 6 strings
- 24.75"'' scale
- 12" Fretboard Radius
- Korina body
- Three-Piece Korina neck
- Ebony fretboard
- Bridge pickup: Fishman Gristle 90's (Single Coil/Passive)
- 1 volume and 1 tone Dome knobs
- 3-way Switch
- Bigsby B-50 with Roller Bridge bridge
- Medium Oval Set neck
- 22 XL Jumbo frets
- Reverend Pin-Lock tuners
- Weight between 7.85lbs (3.6kgs) and 8.25lbs (3.7kgs)
- Compare Specs >
Ibanez JEM77P Overview
- From Ibanez's 2015 PIA/JEM/UV series
- Steve Vai Signature
- Made in Indonesia
- 6 strings
- 25.5"'' scale
- 16" Fretboard Radius
- American Basswood body
- Maple/Walnut neck
- Maple fretboard
- Bridge pickup: DiMarzio Gravity Storm (Humbucker/Passive)
- Middle pickup: DiMarzio Evolution (Humbucker/Passive)
- Neck pickup: DiMarzio Gravity Storm (Humbucker/Passive)
- 1 volume and 1 tone Bell knobs
- 5-way Switch
- Edge-Zero II tremolo bridge
- Wizard Bolt-On neck
- 24 Jumbo frets
- Ibanez 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 the Reverend Greg Koch Gristle 90
Limba is a relatively rare wood that shows exotic tight dark grain stripes. It comes in white or black. As a tonewood, it is comparable to Mahogany but with richer mids. Find out more about Limba.
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.
Woods Used in the Ibanez JEM77P
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.
Basswood is a lightweight type of wood that isn't as expensive as other popular choices for guitar building. It gives more power to the mid-range frequencies. Its color can vary from pale white to light brown. Find out more about Basswood.
Winner: Reverend Greg Koch Gristle 90.
Pickup Configuration
The Reverend Greg Koch Gristle 90 has an P90P90 configuration while the Ibanez JEM77P has HSH pickups.
P90P90 gives you two P90s for a crunchy vintage tone. The tone sits somewhere in the middle between typical single-coils and humbuckers. They also produce less hum than single-coils, but they don't cancel it completely like humbuckers.
On the other hand, HSH is a versatile pickup configuration that will give you the high output, full tone, and quiet sound of humbucker pickups, but with the possibility of using a single coil for cleaner tones. The disadvantage is that the middle single-coil pickup will have a noticeable lower volume, so you might want to adjust the height of the pickups. Another problem is that if you set the middle pickup too high, it might interfere with your picking hand.
Pickups Quality
Both come with very good pickups from at least one of the specialized brands in the market. With pickups like these, you probably won't need an upgrade anytime soon.
However, the Reverend Greg Koch Gristle 90 has a slight sound quality advantage when taking into account other factors like the type of pickups, magnet, position, etc.
We found the same or similar pickups to the Ibanez JEM77P's online:
Both use Passive pickups. This is what's used for most music genres. They have a regular output and will serve you for both high-gain and clean tones. The alternative (Active pickups) offer a higher output that is mostly used for heavy music.
Winner: Reverend Greg Koch Gristle 90.
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
The Ibanez JEM77P gives you 5 switch options while the Reverend Greg Koch Gristle 90 gives you 3. This means that the Ibanez JEM77P gives you more options to find the right pickup combination for the type of sound you want to achieve
Only the Reverend Greg Koch Gristle 90 comes with some kind of pickup modification: Boost.
A Boost will give your pickups more output, similar to an active pickup. It's great if you like to use a lot of output for heavy genres, but also like to use a cleaner tone often.
When evaluating versatility, we also take into consideration bridge and neck joint type, number of frets, switch options, amount of pickups and more.
Winner: Ibanez JEM77P.
Final Sound Quality Scores
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 Reverend Greg Koch Gristle 90 compares to the Ibanez JEM77P.
Country of Origin
The manufacturing country can tell a lot about the build quality of an instrument. The Reverend Greg Koch Gristle 90 is built in South Korea while the Ibanez JEM77P is made in Indonesia.
South Korea was for many years the number one choice for mass-producing semi-premium guitars. They can build excellent guitars for a cheap price. Now, it's less common to find Korean guitars because Indonesia has proved capable of building guitars just as well, but likely for cheaper.
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.
Winner: Tie
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 Reverend Greg Koch Gristle 90 has a Boneite nut. This is an artificial material made to imitate the favored type of nut: bone. This allows it to sound and feel pretty much like bone, but without the inconsistency of natural materials.
On the other hand, the Ibanez JEM77P 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: Tie.
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.
Unfortunately, none of them come with stainless steel frets.
Winner: Tie.
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 Reverend Greg Koch Gristle 90's brige is a Bigsby Tremolo. Bigsby tremolos are built differently than regular tremolos. They have a stiffer arm, which is something a lot of people like because the arm won't wiggle around a lot. On the other hand, this type of tremolo is more complicated to restring and it might not be as newbie-friendly as other simpler tremolos.
On the other hand, the Ibanez JEM77P's is a Edge Zero II. This is a cheaper version of Ibanez's Edge Zero bridges. It comes with the same locking stud bolts that lock down into the body and provide better stabilization, and with easier adjustment of the springs without having to remove the backplate thanks to a thumb-screw. However, the intonation in this cheaper version will require additional work.
Edge Zero IIs that come with the ZPS3 Zero Point system have two extra springs that help return the tremolo to the neutral position faster. These bridges offer tons of versatility, but they also require more work than simpler tremolos to set up.
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: Tie.
Tuners
The Reverend Greg Koch Gristle 90 has the best tuners of the two because they are locking tuners. They'll help to keep your guitar in tune because they allow you to tune it without wrapping the strings around the posts. This avoids variations in the tuning due to the strings changing position at the post after a bend. They come at the disadvantage of being slightly heavier than regular tuners. Also, it makes it a lot easier to restring.
Nevertheless, the Ibanez JEM77P has a locking nut, so it should have even better tune stability and doesn't need locking tuners.
Winner: Reverend Greg Koch Gristle 90.
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.
The Reverend Greg Koch Gristle 90 has a Set neck joint. This neck is tightly glued to the body. They give you the least versatility because you can't swap them for a neck that fits your hand better if you want to, unlike bolt-on necks. Some people think this gives more resonance and sustain, but there's no real difference if the bolt-on joint is well built.
On the other hand, the Ibanez JEM77P comes with Bolt-On neck joint. This neck is joined to the body by 4 bolts that you can simply unscrew. This allows you to replace the neck or take it off for travel. It's the most common and cheapest way to build a guitar.
Winner: Ibanez JEM77P.
Here is the list of features that were considered when choosing the winner in the Features subcategory:
Reverend Greg Koch Gristle 90
- Locking Tuners
- Expensive Wood
- Boneite Nut
- Top Brand Pickups
- Boost Pickups
- Tremolo
- Cheap Fret Wire (NS)
- Made in South Korea
- No Neck-Through Build
- No Weight Relief
- No Luminescent Inlay
- No Compound Radius Fretboard
- No 21:1 Tuner Ratio
- No Strap Lock
Ibanez JEM77P
- Locking Nut
- Top Brand Pickups
- Tremolo
- Cheap Fret Wire (NS)
- No Locking Tuners
- Made in Indonesia
- No Expensive Woods
- No Neck-Through Build
- No Push Knob or Extra Switch Option
- No Weight Relief
- No Luminescent Inlay
- No Compound Radius Fretboard
- No 21:1 Tuner Ratio
- No Retainer Bar
- No Strap Lock
Final Build Quality Scores
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
The nut width will affect the separation between strings at the nut. In this comparison, both have a nut width of 43mm (1.693'').
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
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 Ibanez JEM77P has the longest scale: 25.5". The Reverend Greg Koch Gristle 90 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
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.
In this case, both have different neck shapes:
The Reverend Greg Koch Gristle 90 has a C type of neck. This is what you'll find in most modern guitars. Most people feel like the thickness of a C neck is simply the less intrusive one for playing fast, while at the same time allowing you to grab the neck easily for resting if you want to.
The Ibanez JEM77P, on the other hand, has a Wizard neck. This is thinner than most C-type necks. It won't get in your way if you want to play fast solos. It's not as slim as 'Super Wizard' necks, so it might fit you better if you don't like ultra-thin necks.
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.
In this case, the Reverend Greg Koch Gristle 90's fingerboard radius is smaller, which means it's more curved than the Ibanez JEM77P's. This extra arc will make playing chords easier in this model. You won't be as likely to mute the strings, especially if you have big hands. However, playing single notes and bending will be easier on the Ibanez JEM77P.
Still, both tend to favor soloing over chords, so if you're looking for a guitar for playing rhythm, you might want something else with a radius closer to a Stratocaster's 9.5''.
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.
And after taking into account the scale length, nut width, neck profile and fretboard radius, we can conclude that the Reverend Greg Koch Gristle 90 favors large hands more than the Ibanez JEM77P.
Reverend Greg Koch Gristle 90:
Ibanez JEM77P:
Fret Size
The Reverend Greg Koch Gristle 90 has XL Jumbo frets, which should be taller than the Ibanez JEM77P's Jumbo frets.
Some people prefer taller frets because they result in more sustain since the strings get pressed cleanly without interference from the fretboard. However, if they're too tall—like Jumbo frets—, you might change the pitch of the strings accidentally if you press too hard because you won't be touching the fretboard with your fingers. This is also why some guitarists with a heavy grip prefer smaller frets. They like to feel the fingerboard to avoid pressing down too hard and getting out of pitch.
