
A close look at acoustic design reveals artfully engineered contours that strike an ideal balance between structural strength and musical responsiveness.
As acoustic guitar players and makers, we use the term "flattop guitar" so often it may come as a surprise when careful investigation reveals the top and back of a guitar to be anything but flat. While an archtop guitar's dramatically sculpted top and back contours are obvious at first glance, signaling cello-like inspiration and construction, the subtle contours of our favorite flattops are equally critical for the structure and sound we love.
To better understand how this gracefully curved structure works, consider the practicalities of how a guitar top is constructed. From a board, a very thin sheet of wood is cut. Typically, two or more pieces are joined together edge-to-edge in order to provide the most predictably uniform wood grains across the width of the guitar. This top usually has what's known as quartersawn grain orientation for maximum strength and consistency, with the growth rings of the wood perpendicular to the guitar's face, as if the hard grain lines were miniature structural beams.
Braces are glued to the underside of the top in any number of different arrangements. The purpose of these braces is to guide the vibration of the top in a way that makes a pleasing musical sound, while imparting enough strength to the top to avoid physical distortion or outright fracturing when supporting the tension of the strings.
One challenge a guitar maker faces is to build the top with very light weight, so it can respond easily to string vibration, yet enough strength and stability to withstand the immense tension. When a flat sheet of material is bent into a curve, even a subtle curve, its strength is increased significantly. Imagine a sheet of paper. It's very thin and incredibly flexible. When held in a curved shape, it becomes far stronger perpendicular to the axis of the bend.
When a flat sheet of material is bent into a curve, even a subtle curve, its strength is increased significantly.
In a more extreme example, if the paper is rolled into a tube, it becomes exponentially stronger, all without adding any additional mass. This same principle is applied to a guitar top. Most commonly, instead of a mere cylinder shape, where the top is arched in a single direction, the top is gently coaxed into a spherical shape, increasing its strength in every direction. This spherical shape is formed and held in place by cutting a corresponding curve into the braces and sides of the guitar—which are far less flexible than the thin wood of the top itself—and gluing the entire structure together to anchor this shape in place.
Unlike the top, the grain orientation of the braces glued to the top prevents them from following the shrinking or swelling in dry or humid conditions. As a result, the top or back will slowly sink, eventually becoming flat, or even slightly concave, in dry weather. The subtle built-in arch of a top or back allows the wood to have room to shrink before it cracks. We could think of this as building in some slack to prevent damage. In humid conditions, the top and back will swell, rising up into a higher arch as the wood grows in size. While this will temporarily raise the strings higher from the fretboard and make the guitar harder to play, no further damage is imminent.
The practices of arching a top and back are practical habits of instrument makers that stretch back hundreds of years. Each maker has its own approach to this subtle art and uses this as an ingredient in voicing the sound of instruments. Regardless of the exact amount and relationship of the arches, which vary by the maker's design and are further influenced by the weather and conditions of the day, it seems our guitars remain a curiously beautiful balance of carefully thought-out physics and artful practicalities.
We’re not slowing down! Enter Stompboxtober Day 15 for your chance to win today’s featured pedal from Solo Dallas!
Orbiter Fuzz Pedal
Discover the SoloDallas Orbiter Fuzz, a meticulously crafted effects pedal designed to combine genuine vintage tones with user-friendly versatility. Building upon the legacy of the 1966 Arbiter Fuzz, the Orbiter Fuzz adds fine-tuning circuitry to this already amazing vintage circuit.
Fender's American Ultra II series offers the ultimate blend of tradition and modernity, featuring advanced Ultra Noiseless and new Haymaker Humbucker pickups, stunning finishes, and a sleek Modern “D” neck shape.
Fender Musical Instruments Corporation (FMIC) today continues its industry-defining innovation, launching the next iteration of the coveted American Ultra series—Fender’s most advanced series of electric guitars - by taking that hyper-modern recipe and turning it up to 11 for American Ultra II.
At a time when projections indicate the electric guitar market is set to grow by USD 1.45 billion from 2024-2028, driven by increasing demand for music-related leisure activities¹, the introduction of the American Ultra II series exemplifies a steadfast commitment to innovation, with every detail reflecting a relentless pursuit of perfection. At Fender, innovation is an ongoing, dynamic process fueled by a deep passion for enhancing the playing experience. Long before the American Ultra series hit the market, discussions were already underway about future possibilities, sparked by spontaneous experiments and real-world feedback from the innovators who play these guitars.
The American Ultra II series is built in Fender’s iconic California factory where guitars are meticulously crafted using a blend of time-honored techniques and state-of-the-art CNC technology, ensuring every instrument embodies the perfect balance of tradition and modernity. Massive green punch presses and decades-old tools, some dating back to the 1950s, sit alongside advanced machinery that allows for precise shaping and flawless consistency.
“With the work and heart that went into creating the American Ultra II series, there's a lot of soul in these guitars,” said Justin Norvell, EVP of Product at FMIC. “We refer to it as the “sports car” of the Fender lineup, it’s designed to push boundaries and redefine what a Fender guitar can be, catering to both traditionalists and those exploring new, faster, and more intricate playing styles. This is a guitar that doesn’t fight you; instead, it gets out of the way, allowing you to focus purely on your performance, whether you’re playing soulful solos, fast riffs, or complex chord progressions.”
Featuring stunning finishes, modern body contours, a Modern “D” neck shape, and the most advanced Ultra Noiseless™ and new Haymaker™ Humbucker pickups, American Ultra II bridges the gap between Fender’s classic designs and high-performance instruments typically associated with Fender’s specialty brands such as Charvel, EVH or Jackson. The guitars’ unique neck profiles provide an effortless glide along the fretboard, making for an incredibly smooth and responsive feel that increases precision. The American Ultra II series is an ideal fit for players who love the iconic look and sound of a Fender guitar, but crave the speed and playability of a performance guitar adept for playing across genres, from neo-soul and jazz to metal and funk.
A welcome balance to the ultra-modern specs, the American Ultra II also embodies the hallmark qualities that make Fender guitars timeless including unparalleled versatility, modularity, and signature tone. Whether a player is chasing the crystalline clarity of classic Stratocaster® sounds, the bite of a Telecaster®, or the deep growl of a Jazz Bass®, the American Ultra II series is built to handle it all. In addition to the standard models, the series includes Ultra II Jazz Bass® V, a left-hand Stratocaster® model as well Ultra II Meteora® guitar and bass.
Top Highlights Include:
- Fender’s Fastest-Playing Necks: The quartersawn maple neck has a comfortable modern “D” shape and is topped with an ebony or maple fingerboard with Luminlay side dots and Ultra rolled edges
- Upgraded Noiseless™ Pickups: The Ultra II Noiseless™ pickups deliver classic Fender® single-coil sound – without the hum
- Ultra Comfort And Playability: A sculpted neck heel and sleek rear body contours offer next-level comfort and playability
American Ultra II Models & Pricing
- American Ultra II Stratocaster - $2,199.99-2,249.99
- American Ultra II Stratocaster HSS - $2,249.99
- American Ultra II Telecaster - $2,199.99
- American Ultra II Meteora - $2,249.99
- American Ultra II Precision Bass - $2,199.99
- American Ultra II Jazz Bass - $2,299.99
- American Ultra II Jazz Bass V - $2,399.99
- American Ultra II Meteora Bass - $2,299.99
American Ultra II Series | Fender
Join Premier Guitar contributor Tom Butwin as he tries five powerful guitar plugins that will transform your tone.
Mastodon's lead guitarist teams up with the Does It Doom creator Steve Reis to make a dream V come true with a sleek silverburst finish and alnico-V PAF humbuckers.
Woodrite Guitars, alongside with Dirty B himself, proudly presents the 'Dirty B' Signature Vagabond, a high-performance guitar that delivers on both craftsmanship and tone. The instrument's mahogany body and bound mahogany neck a repaired with a sleek Macassar ebony fingerboard, featuring distinctive custom "Mastogyph" inlays. Its silverburst finish adds to the guitar’s striking appearance, while stainless steel frets, Tonepros hardware, and Grover tuners provide the durability and precision expected in a professional-grade instrument.
Designed to meet the tonal needs of heavy players, the Vagabond is equipped with a set of Woodrite Barbarian humbuckers. Utilizing Alnico V magnets and inspired by the classic PAF design, these pickups offer a rich midrange response that thrives in both clean and overdriven settings. Coupled with a GraphTech TUSQ XL nut and "straight string pull" headstock for enhanced tuning stability, the 'Dirty B' is built to perform under the most demanding conditions, making it a reliable choice for musicians seeking versatility and sonic power.
Specs
- Body Shape: Vagabond
- Body Orientation: Right-Handed or Left-Handed
- Body Material: Mahogany
- Finish: Silverburst
- Clearcoat: Gloss Polyurethane
- Neck Pickup: Woodrite Barbarian (7.8k, A5, 42AWG)
- Bridge Pickup: Woodrite Barbarian (13.0k, A5, 43AWG)
- Controls: 2 Volume, 1 Tone, 3-Way Toggle Switch
- Finish: Chrome
- Bridge: TonePros Tune-O-Matic
- Tailpiece: TonePros Stop Bar
- Pickguard: Black
- Control Knobs: Black Top Hats w/ Reflectors
- Switch Tip: Black
- Jack Plate Cover: Chrome
- Material: Mahogany
- Binding: Yes
- Nut: GraphTech TUSQ XL
- Nut Width: 1.69″
- Profile: 0.800″ at 1st Fret, 0.875″ at 12th Fret, Medium “C” profile
- Scale Length: 24.75″
- Fingerboard Material: Ebony
- Fretwire: Jumbo Stainless Steel
- Inlays: ‘Dirty B’ Custom “Mastoglyph”
- Fingerboard Radius: 12″
- Number Of Frets: 22
- Tuning Machines: Grover Mini Rotomatic
- Tuning: D-Standard (D, G, C, F, A, D)
- Strings: D’Addario EXL116 (.011, .014, .018p, .030, .042, .052)
- Weight: Approximately 7 pounds
- Case: Includes Custom Form-Fitted Woodrite Guitars Hardshell Case
- Country of Origin: Built in Indonesia by PT Wildwood (PRS, ESP)
- Price: $1,599