Earthquake Sound Corp.

FF6.5 Front Firing Subwoofer

MSRP: $275.00/PIECE

The FF6.5 by Earthquake is a remarkable accomplishment in delivering exceptional bass quality at a surprisingly affordable price. At its core, the FF6.5 is a formidable 6.5-inch, 150-watt front firing powered subwoofer expertly designed to deliver outstanding low frequency performance while boasting a sleek, compact aesthetic that fits seamlessly into any living space.

The FF series is a testament to Earthquake’s commitment to audio excellence. It draws inspiration from the highly regarded MiniMe subwoofers, known for their impressive excursion and power handling capabilities. With sophisticated amplifiers built upon the celebrated Sub-Series technology, the FF6.5 ensures a refined, immersive audio experience that captivates any listener.

Earthquake has set a standard for price-to-performance ratios in the subwoofer market by focusing on advanced design features and efficient manufacturing processes. The FF6.5 is not just another subwoofer but a strategic solution for enthusiasts desiring high-quality bass reproduction without the luxury price tag. The FF series challenges the conventional wisdom that top-tier low frequency sound must be an exclusive luxury, making outstanding sound accessible to everyone, and redefines the price-to-performance benchmark in the subwoofer market. Don’t miss the chance to elevate your audio experience with the FF6.5.

EAN: 0689759002635

SKU: FF6.5 Categories: , Tags: ,
Features
  • 6.5-inch high power subwoofer
  • Built-in Class AB high-efficiency power amplifier
  • Front-firing design with small footprint
  • Single front slot port for optimized bass output
  • 12dB/Octave variable low pass filter
  • 0–180° phase shift
  • Auto/On/Off signal detection circuitry
  • Low level (RCA) audio inputs
  • Finish: Black Ash
  • Removable grille
  • Built-in vibration-isolating feet
  • Also available in 10-inch and 12-inch models
Specifications
  • Power Output: 150W Peak
  • Amplifier Class: Class AB
  • Frequency Response: 28Hz–180Hz
  • Crossover Frequency: 40Hz–180Hz
  • Output Level: < 100dB from 25Hz–125Hz
    • Includes room gain
  • 9.92 in. (252mm) x 7.63 in. (194mm) x 14.21 in. (361mm)
  • Weight: 16.5 lb (7.5 kg)
In The Box
  • (1) FF6.5 subwoofer
  • (1) Removable grille
  • (1) Power cable
  • (1) Product manual

Power and Precision: The Amplifier and Woofer Symbiosis

The FF6.5’s remarkable performance stems from a carefully orchestrated synergy between its amplifier and woofer, ensuring authoritative and deep bass reproduction. At the heart of the FF6.5 lies a robust, built-in 150-watt power amplifier with Class AB topology, often favored for its optimal balance of sonic fidelity and operational efficiency. This amplifier is not a new invention but rather a refined descendant of the signature Sub-Series from Earthquake, known for its proven, reliable design that has been honed over time.

The Slot Port Advantage: Deeper Bass, Smarter Design

A standout feature and key differentiator for the FF6.5 is its advanced FEA (Finite Element Analysis) computer-modeled quarter-wavelength transmission line with a variable cross-section folded-horn that offers more port volume than traditional tubular ports, resulting in powerful, deep bass that fills a room. Unlike bulky tubular ports, the slot port can bend at optimal angles, allowing for a smaller cabinet size without sacrificing performance or aesthetics. This design also directs airflow across specially shaped internal heat exchangers, enabling the subwoofer to maintain high output without overheating. The cooling system ensures long-term reliability and prevents thermal compression during demanding playback. Additionally, the slot port acts as a cross brace, enhancing the cabinet’s strength and eliminating resonance. This rigid, non-resonant construction minimizes unwanted vibrations, ensuring that the sound produced is clean and pure.

The slot port is more than just an air opening; it represents a comprehensive engineering solution. Its multi-functional design impacts acoustic output, cabinet dimensions, visual appeal, amplifier cooling, and structural integrity. Instead of addressing issues like port noise, cabinet size, or thermal management individually, Earthquake engineers have created a single, integrated feature that tackles these challenges together. This meticulous approach enhances the FF6.5’s remarkable combination of price and performance, making it a product that exceeds the sum of its parts.

Scroll to Top