6FHM

The 6FHM is a high efficiency, (89 dB 1watt / 1 meter) 6-inch mid-woofer with incredibly linear frequency response characteristics and ultra low harmonic distortion artifacts. The 6FHM uses a lightweight 1k carbon fiber material, assembled on both sides of Nomex honey-comb core. This unique cone provides the ideal weight to strength ratio. The rubber surround has been FEM modeled and optimized. The honeycomb cone with high-end 1k carbon fiber material provides remarkable strength, while pushing the cone break-up modes to high frequencies, significantly extending the working range of the speaker.

The cone
The 6FHM cone is made using 1k carbon fiber honey-comb, placed from both sides of Nomex core, while the dustcap is made off hard-anodization reinforced aluminum. The dustcap shape and the hard anodizing are further improving the mid to high frequency behavior.

The 6FHMX8-152C is a 6-inch ferrite mid-woofer rated at 40 W AES (80 W continuous) into a nominal 8-ohm load. Sensitivity is 89.0 dB (1 W/1 m), suited to integration with high-sensitivity compression drivers in compact 2-way PA systems. The Qts of 0.29 indicates a motor-suspension design optimized to maintain consistent performance at high drive levels, with controlled excursion and reduced thermal compression during long-term operation. The trilaminate cone - 1k carbon fiber bonded to both sides of a Nomex honeycomb core - combined with an anodized aluminum dustcap pushes cone breakup modes to higher frequencies, extending the pistonic operating range well into the midrange. The 33 mm CCAR voice coil on a Kapton former and an FEM-optimized ferrite motor circuit contribute to the driver's characteristically low harmonic distortion.

The driver is rated for approximately 40 W AES (80 W continuous) and is intended for use with amplification typical of compact 2-way professional audio systems. A high-pass filter at 45-60 Hz (18-24 dB/octave) is recommended for vented alignments to protect the driver below the port tuning frequency. The low voice coil inductance (Le = 0.26 mH) supports clean crossover integration with compression drivers or dome tweeters at frequencies from 2 to 4 kHz.

The 6FHMX8-152C is suited for compact 2-way professional PA top cabinets, hi-fi standmount monitors, and studio reference systems where extended midrange response, low harmonic distortion, and high-performance trilaminate cone construction are required. Good to use with 1-inch compression drivers such as 101FCDX8-539A or 101NCDX8-160, or with dome tweeters such as 25TNX4-386B or 33TNX8-410B in 2-way systems requiring a refined mid-woofer with audiophile-grade cone technology.