Ibanez RGRTB621 Guitar in Black Flat B-Stock 3804
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- SKU
- RGRTB621BKF-B3804
- Color
- Black
. Description
Sound & Tone
DiMarzio Fusion Edge humbuckers push a high-output, articulate voice that stays tight and defined under heavy gain, while the neck-through maple/walnut neck and nyatoh wings add sustain and a balanced response across all 24 frets. The ebony fingerboard lends clarity and attack to fast riffing, and the dyna-MIX 10 switching opens up ten voicings ranging from percussive rhythm tones to thinner, more vocal lead settings. It's aimed squarely at modern metal, progressive, and shred playing, with enough switching range to cover cleaner passages without swapping instruments.
Ibanez RGRTB621 Iron Label Guitar in Black Flat
The RGRTB621 captures articulate, punchy tones ideal for modern metal tracking and extended-range studio work. Its lightweight construction and thin neck profile enable precise, fatigue-free performance during long recording sessions, while the neck-through design delivers superior sustain and clarity—critical assets when layering guitars or capturing aggressive dynamics. The Black Flat finish presents a professional, understated character that photographs well and sits cleanly in dense mixes.
Recording Performance & Ergonomics
Neck-through construction pairs a maple and walnut Nitro Wizard neck with nyatoh body wings for balanced resonance and responsive tracking dynamics. The 24-fret ebony fingerboard accommodates two octaves and enables rapid position shifts during overdub work, while neck dimensions of 0.75" at the first fret and 0.83" at the twelfth support precision finger placement during studio sessions. Luminescent side dot position markers ensure visibility under any studio lighting setup.
Tone & Electronics
DiMarzio Fusion Edge humbucking pickups deliver articulate, high-output tracking with defined upper-midrange detail suited for aggressive playing styles. The dyna-MIX 10 switching system provides ten distinct sound variations, letting you explore everything from tight, controlled rhythm tones to expressive lead voices without patch changes or pickup swaps—valuable flexibility for maintaining consistency across multiple takes.
Key Features
- Neck-through-body construction with nyatoh wings
- Maple and walnut Nitro Wizard neck
- Ebony fingerboard with 24 frets
- Luminescent side dot position markers
- Neck thickness: 0.75" (19.1mm) at first fret, 0.83" (21.1mm) at twelfth fret
- DiMarzio Fusion Edge humbucking pickups
- dyna-MIX 10 switching system with ten sound variations
- Independent Mono-rail bridge
- Gotoh MG-T locking machine heads
- Black plastic nut
- Black hardware throughout
The RGRTB621 combines Iron Label reliability with producer-focused design, making it a studio-ready instrument for tracking complex arrangements and demanding sessions.
This specific B-Stock unit features minor cosmetic imperfections: fret sprout damage and binding deterioration running the length of the fretboard. These marks are purely superficial and have absolutely zero impact on the playability, tone, or structural integrity of the guitar. Acquire this premium Ibanez instrument at a significant B-Stock discount while enjoying the confidence of full manufacturer warranty coverage.
More Information
| Condition | Refurbished |
|---|---|
| Dexterity | Right handed |
| Neck Construction | Neck-Thru-Body |
Reviews
About this B-Stock unit
| Serial number | ends in 3804 (this exact unit) |
|---|---|
| Condition | B-Stock - cosmetic blemish, fully functional |
| Photos | 11 photos of this exact unit, not stock images |
| Inspected | Photographed and inspected in Temecula, Aug 8, 2026 |
| Price vs new | $260 under the new unit ($1,300) |
Prefer a brand-new one? Ibanez RGRTB621 Guitar in Black Flat is in the catalog at $1,300.
Specifications
| Body Style | Double Cutaway |
|---|---|
| Scale Length | 25.5" Scale |
| Frets | 24 Frets |
| Fretboard | Ebony |
| Neck Wood | Maple |
| Neck Construction | Neck-Thru-Body |
| Pickups | Active H |
| Bridge | Hardtail |
| Strings | 6 |
| Orientation | Right handed |
Who This Is For
| Best suited for | Metal, Djent, Progressive, Extended Range, Studio Sessions |
|---|---|
| Tonal character | High-output, articulate, tight rhythm tones, expressive lead voices, aggressive character |
| Less specialized for | Jazz, Blues, Country (it will do it; instruments voiced for that style do it more easily) |
| Skill level | Intermediate / Advanced / Professional |
Frequently Asked Questions
What does B-Stock mean for this guitar?
B-Stock means the guitar is fully functional and sounds perfect, but has minor cosmetic imperfections: fret sprout damage and binding deterioration along the fretboard. These cosmetic issues have zero impact on playability, tone, or structural integrity.
Is this guitar suitable for metal and djent?
Yes—the RGRTB621 is purpose-built for metal, djent, and progressive styles. The DiMarzio Fusion Edge pickups deliver high-output, articulate tones, the neck-through design provides superior sustain, and the dyna-MIX 10 system lets you dial in tight rhythm tones and aggressive lead voices.
How comfortable is the neck for long playing sessions?
The thin Nitro Wizard neck is designed to reduce fatigue, with a 0.75-inch thickness at the first fret and 0.83-inch at the twelfth fret—a modern, approachable profile. The neck-through construction and balanced weight support hours of comfortable extended-range playing.
What does the dyna-MIX 10 switching system do?
The dyna-MIX 10 provides ten distinct sound variations from the DiMarzio Fusion Edge humbucking pickups, allowing you to dial in everything from tight rhythm tones to expressive lead voices without changing pickups or gear.
What's included with this guitar?
The guitar comes with a Gotoh MG-T locking machine head, Independent Mono-rail bridge, ebony fingerboard with 24 frets, luminescent side dot position markers for visibility, and full manufacturer warranty coverage.
Do I pay sales tax on this order?
Sales tax is collected only on orders shipped to California; orders shipped to any other US state are not charged sales tax at checkout when you buy direct from our website. At a typical 7% rate that is an estimated $73 less at checkout than the same listed price on a marketplace, which collects sales tax as the facilitator in most states. Buyers remain responsible for any use tax their state applies. Free US shipping and 30-day returns are included.
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