Ibanez RGRTB621 Iron Label vs RGRT421
Reasons to Get
Ibanez RGRTB621 Iron Label over RGRT421
Reasons to Get
Ibanez RGRT421 over RGRTB621 Iron Label
Other Key Differences
Ibanez RGRTB621 Iron Label vs RGRT421
Shared Features
Ibanez RGRTB621 Iron Label vs RGRT421
Common Strengths
- Neck-Through Build
Common Weaknesses
- Weight Relief
- Stays in Tune (Evertune)
- High-Quality Nut
- High-Quality Frets
- Compound Radius Fretboard
- From a High-Quality-Standards Country
- Strap Lock
- 21:1 Tuner Ratio
- Active/Passive Preamp
Price History Comparison
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Which One is Better for Beginners?
The Ibanez RGRTB621 Iron Label meets 5 out of our 8 criteria items for beginner friendliness, while the Ibanez RGRT421 meets only 4. 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
Ibanez RGRTB621 Iron Label- Comfortable shape
- Easy-to-use bridge
- Locking tuners
- Tall frets
- Comfortable neck
- Comfortable fretboard
- Narrow nut
- Short scale
New Player Friendliness
Ibanez RGRT421- Comfortable shape
- Easy-to-use bridge
- Tall frets
- Comfortable neck
- Comfortable fretboard
- Narrow nut
- Short scale
- Locking tuners
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.
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 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.
Nyatoh has been replacing Mahogany for guitar building. It's fairly hard, durable, more sustentable and common than Mahogany. Find out more about Nyatoh.
Woods Used in the Ibanez RGRTB621 Iron Label
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 RGRT421
Jatoba is a hard and dense wood that emphasizes the mid-lows, giving a fuller, more round sound than, for example, Mahogany. However, it also has a lot of clarity in the top end. Find out more about Jatoba.
Winner: Ibanez RGRTB621 Iron Label.
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 Ibanez RGRTB621 Iron Label has pickups from a more specialized brand than the Ibanez RGRT421. Its pickups should simply give you a better, fuller sound, although it all depends on what type of music you're going to play. We recommend these pickups for Hard Rock and similar genres.
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: Ibanez RGRTB621 Iron Label.
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.
Only the Ibanez RGRTB621 Iron Label comes with some kind of pickup modification: Coil Tap.
Coil Tap is similar to Coil Split but it works a bit differently. Instead of completely cancelling one of the coils of the humbucker, it only cuts part of the output once activated. Some people believe this gives the split pickups a more real single-coil sound.
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 RGRTB621 Iron Label.
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 Ibanez RGRTB621 Iron Label compares to the Ibanez RGRT421.
Country of Origin
The manufacturing country can tell a lot about the build quality of an instrument. Both in this comparison where made in Indonesia.
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.
In this case, both have Plastic nuts. 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.
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.
Both come with a similar bridge: 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.
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 Ibanez RGRTB621 Iron Label 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.
Winner: Ibanez RGRTB621 Iron Label.
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:
Ibanez RGRTB621 Iron Label
- Locking Tuners
- Expensive Wood
- Top Brand Pickups
- Neck-Through Build
- Coil Tap Pickups
- Luminescent Inlay
- Cheap Fret Wire (NS)
- Made in Indonesia
- No High-Quality Nut
- No Weight Relief
- No Tremolo
- No Compound Radius Fretboard
- No 21:1 Tuner Ratio
- No Strap Lock
Ibanez RGRT421
- Neck-Through Build
- Cheap Fret Wire (NS)
- No Locking Tuners
- Made in Indonesia
- No Expensive Woods
- No High-Quality Nut
- No Top Brand Pickups
- No Push Knob or Extra Switch Option
- No Weight Relief
- No Luminescent Inlay
- No Tremolo
- No Compound Radius Fretboard
- No 21:1 Tuner Ratio
- 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.
In this case, both have a scale length of 25.5".
This is the scale used in most Stratocasters. It's slightly longer than the typical 24.75'' size found in Les Pauls, and it's one of the main reasons why Stratocasters have such a bright sound in general. A longer scale also means that the strings will have higher tension. This will help you get lower action without suffering fret buzz, which will also be helpful when playing in lower tunings without having to increase your string gauge.
However, this also means that there will be more separation between frets, which can make it more difficult to play. Also, bending the strings will require more strengths due to the increased tension, but remember that a tremolo guitar will offset this difficulty.
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.
Both the Ibanez RGRTB621 Iron Label and the Ibanez RGRT421 have a Wizard-shaped 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 Ibanez RGRTB621 Iron Label's fingerboard radius is smaller, which means it's more curved than the Ibanez RGRT421'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 RGRT421.
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.
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 .
Ibanez RGRTB621 Iron Label:
Ibanez RGRT421:
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.
