Shure 520 DX MICRO HARMONICA OMNIDIRECTIONNAL

A Shure Classic Icon: the Vintage Sound That Defined the Stage

The Shure 520DX is one of those microphones that is instantly recognizable, both for its retro aesthetic and its distinctive sonic signature. Known worldwide as the " Green Bullet ", it embodies the spirit of the Shure Classic range: unconventional microphones designed for the stage, whose sonic personality has endured across generations. With its green-and-chrome body and all-metal construction, the 520DX has become a true reference for amplified harmonica, closely associated with the imagery of electric blues while remaining relevant to more modern styles.

Who Is It For and What Can It Be Used For?

The 520DX is primarily aimed at harmonica players looking for a dedicated microphone that is easy to handle and capable of producing the characteristic modulations of amplified playing. Its shape is designed to fit comfortably in the palm and make positioning with the instrument easier, allowing you to control the tone directly " in the palm of your hand ". On stage or in rehearsal, it connects naturally to a guitar amp (or any equipment fitted with a high-impedance input) and becomes a genuine expressive tool.

Beyond harmonica, the 520DX can also deliver surprising results on vocals: it provides a deliberately distinctive capture, with a lo-fi color and a highly effective " garage/underground " sound for stylized spoken-word performances, gritty backing vocals, or live textural effects. This is a character microphone, designed to embrace a sonic identity rather than neutrality.

The Character of the 520DX: Hand Control, Blues Grit, Live Performance

Dynamic Capsule and Optimized Frequency Response

Featuring a dynamic capsule, the Shure 520DX prioritizes durability and consistency in live situations. Its frequency response, focused on the essentials, highlights an expressive midrange and a tighter high end—an ideal choice for achieving a dense, punchy amplified harmonica sound that works easily with an amp. This signature contributes to the famous " Green Bullet " sound: raw, present, and immediately musical in blues, rock, and roots contexts.

Omnidirectional... but Extremely Sensitive to Positioning

On paper, its omnidirectional pickup pattern captures sound through 360 degrees. In practice, the way you close or open your hand around the microphone and harmonica significantly changes the result: you can move from a more open sound to a more muted one, with increased compression and bite. This " hand-controlled variable directionality " lies at the heart of the wah, filter, and modulation effects that have made amplified blues harp legendary.

Built-In Volume Control and High-Impedance Connection

The integrated volume knob is a major asset for live performance: it lets you adjust your level on the fly, shape the attack, manage a gradual increase in amp saturation, or create cut-off effects without letting go of the instrument. The cable is hardwired and terminates in a 6.35 mm jack plug, designed for connection to a high-impedance input only (for example, a guitar amp). This configuration matches the traditional use of amplified harmonica and contributes to the feeling of " direct playing " through the amp.

Metal Construction: Handling and Reliability

Built entirely from metal, the 520DX inspires confidence from the very first time you pick it up. Its compact format and rugged shell are well suited to stage conditions: quick handling, energetic sets, and frequent transport. The design is not just about retro looks; it also serves an ergonomic purpose, making it easier to position the microphone between your hands for precise control over the sound, note after note.

Technical specifications

Frequency response - start	100 Hz	Capsule	dynamic
Frequency response - end	5 kHz	Connection	6.35 mm Jack, jack
Sensitivity	-38 dBV/Pa / 13 mV/Pa	Clamp included	No
SPL max	94 dB	Color	Green
Category	wired microphone	Cables included	Yes
Type	harmonica	Weight	737 g
Directivity	omnidirectional	Dimensions (mm)	63 x 63 x 83

Frequency response	100 Hz - 5 kHz	Switch	no
L max	94.00	Clip included	no
Connectivity	6.35 mm jack	Weight (kg)	0.74