Infinity BeTA Be621 1" and 6-1/2" 2-way Component Speaker System

Model: INFSPKBEBE621AM UPC: 050036379151 Item: 177376

Product Information

Opening a window to an intensely pure audio experience.

The Infinity BeTA Be621 Component Speaker System leverages Infinity's decades of audio expertise and use of advanced materials to deliver a perfect audio performance. No expense was spared throughout the systems architecture. A 6-1/2" supremo Carbon Fiber cone was developed to ensure low distortion and optimum cone rigidity even at high output levels. It is suspended using a high roll rubber surround which is both durable and provides the ultimate in cone edge suspension and Specially formulated acoustic adhesive chosen to provide superior strength and sound quality. For high frequencies, Infinity chose Beryllium due to its incredible stiffness and high damping properties. The result is a tweeter with resolution clear out to 40kHz, which ensures incredible accuracy free from harshness and unwanted acoustic anomalies. The crossover network developed for the Infinity BeTA Be621 uses ultra-high tolerance components to eliminate coloration so that the mid-woofer and tweeter are able to be fully appreciated by the listener. The Infinity BeTA Be621 will deliver a level of listening that can only be delivered by Infinity.


  • 1-inch Edge-Driven Pure Beryllium Dome Tweeter
  • Carbon Fiber Composite Cone Body and Dustcap Woofer
  • Nomex Spider Woofer
  • Neodymium Magnet Motor
  • Die-Cast Aluminium Basket
  • Bi-Amp Capable Precision Outboard Crossover Network
  • Magnetic Adsorption Design

1-inch Edge-Driven Pure Beryllium Dome Tweeter

Beryllium offers 4.5 times the stiffness and three times more damping than more commonly used Aluminum and Titanium diaphragms, delivering extended high-frequency performance out to 40kHz. This benefits the listener by virtually eliminating all harnesses in the audio band, delivering a smooth, precise, and detailed performance, even at high output levels.

Carbon Fiber Composite Cone Body and Dustcap Woofer

The ultra-rigid Carbon Fiber composite dust cap and cone body minimize unwanted cone flexing, ensuring smooth frequency response.

Nomex Spider Woofer

Spider is specifically designed to ensure linear motion in both forward and rearward directions. This minimizes distortion caused by the speaker's suspension.

Neodymium Magnet Motor

Provides high flux density, also allows more room for larger steel motor components to provide critical heatsink mass for the voice coil.

Die-Cast Aluminium Basket

Provides rigid support for the motor structure allowing for tighter tolerance thus yielding reduced distortion and unwanted acoustic anomalies.

Bi-Amp Capable Precision Outboard Crossover Network

High tolerance components are used to ensure purity and low distortion with a 12dB per octave alignment on the mid/woofer and 24dB per octave alignment on the tweeter. It is also set up for bi-amping if so desired and a three-position tweeter output is also included to optimize performance based on location and vehicle materials.

Magnetic Adsorption Design

Strong magnetic field adsorption technology takes you to the new case era. From now on, grille installing become a pleasure. It makes your loudspeaker stand out among the crowd. Magnetic strong adsorption loudspeaker grille automatic closing, a 1-second installation by you.



  • 6-1/2" (165mm) 2-way car component speaker system
  • 1" Beryllium dome tweeter
  • 6.5" Carbon fiber cone with cast frames
  • Bi-Amp Capable Precision Outboard Crossover network
  • Frequency Response (-6dB): 20Hz – 40kHz
  • Power Handling: 100Wrms, 200W peak
  • Crossover Frequencies: 2.5K or 3.5kHz (selectable)
  • Nominal Impedance: 4 ohms
  • Sensitivity: 90dB (2.83V @1M)
  • Woofer mounting depth: 2.83 in./72mm
  • Tweeter flush mounting depth: 0.77 in./19.5mm

What's in the Box

What's in the Box

  • 1 pair woofers
  • 1 pair tweeters
  • 1 pair passive crossovers
  • 1 pair woofer grille
  • 1 pair woofer decoration ring
  • 1 pair flush mounting tweeter case (installed)
  • 1 pair flush mounting tweeter nut
  • 1 pair angle surface mounting cup
  • 1 pair stealth mounting bracket
  • 1 pair woofer gaskets
  • Screws and clips
  • User manual


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