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Fortissimo FF6e 6.5" (16,5cm) Mid-Woofer
SKU:  FF6e
80 Watt

FF6e

SKU:  FF6e

Technical Highlights

  • 80W RMS power, 3 Ω impedance, perfect for powerful sound.
  • Frequency range 60 Hz to 3,800 Hz, clear and precise acoustics.
  • 25 mm aluminum voice coil, 143 mm mounting diameter, flexible installation.
  • More technical details
€120,00
€120,00 €120,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Delivery
Jun 5, - Jun 8,
x pair
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Fortissimo-FF6e-6.5" (16,5cm) Tiefmitteltöner-masori-kaufen
€120,00
€120,00 €120,00

FF6e by Fortissimo

The FF6e from Fortissimo is a 6.5-inch midrange driver with a power handling of 80 watts RMS and an impedance of 3 Ω. It is manufactured in Italy and covers a frequency range from 60 Hz to 3,800 Hz. The construction includes a coated paper diaphragm and an aluminum voice coil with a diameter of 25 mm. The efficiency is 91 dB at 2.83V / 1m. For installation, a cutout diameter of 143 mm and a mounting depth of 60 mm are specified. The magnet has a diameter of 85 mm and is equipped with a pole core hole and a copper cap.

Features
  • 6.5-inch (16.5 cm) midrange driver
  • Power: 80 watts RMS
  • Impedance: 3 Ω
  • Coated paper diaphragm
  • Voice coil diameter: 25 mm (aluminum)
  • Efficiency: 91 dB @ 2.83V / 1m
  • Outer diameter: 165 mm
  • Cutout diameter: 143 mm
  • Mounting depth: 60 mm
  • Magnet diameter: 85 mm
  • Pole core with hole and copper cap
Technical Specifications
  • Frequency range: 60 Hz - 3,800 Hz
  • Resonance frequency (fs): 65 Hz
  • Mechanical quality factor (Qms): 6.03
  • Electrical quality factor (Qes): 1.03
  • Total quality factor (Qts): 0.88
  • Compliance (Cms): 0.532 mm/N
  • Equivalent volume (Vas): 11.3 liters
  • Force factor (B*I): 3.9 Tm
  • Moving mass (Mms): 11.3 g
  • Voice coil winding width: 12.5 mm
  • Linear diaphragm excursion: +/- 3.8 mm
  • Mounting hole circle: 8 x 4.5 mm on 158 mm

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Frequently Asked Questions about FF6e

What are the technical specifications of the Fortissimo FF6e?

The Fortissimo FF6e is a high-precision 6.5" mid-bass driver made in Italy, with 80 Watts RMS power handling and 3 Ω impedance. The frequency range extends from 60 Hz to 3,800 Hz. The coated paper diaphragm and the 25 mm aluminum voice coil diameter enable clear and balanced sounds. With an efficiency of 91 dB (2.83V/1m), the FF6e offers excellent acoustic performance. The design includes a cutout diameter of 143 mm and a mounting depth of 60 mm, optimized for versatile installation options. The magnet diameter is 85 mm and includes a copper cap and pole core hole, which enhances magnetic efficiency.

What frequencies are covered by the Fortissimo FF6e?

The Fortissimo FF6e mid-bass driver covers an impressive frequency range from 60 Hz to 3,800 Hz. This allows for excellent reproduction of both low and mid frequencies, which is essential for detailed sound. With a resonance frequency of 65 Hz, the FF6e is ideally suited for applications that require both powerful bass and clear mids. Especially when you listen to music with a wide spectrum, this speaker provides the necessary versatility and precision. Another technical advantage is the compliant diaphragm construction with 0.532 mm/N, which supports dynamic sound.

How is the efficiency of the Fortissimo FF6e designed?

The Fortissimo FF6e features an efficiency of 91 dB at 2.83V/1m, which corresponds to an efficiency of 87 dB at 1W/1m. This high efficiency ensures that even with lower amplifier power, impressive volume can be achieved. The high efficiency combined with a powerful magnet of 3.9 Tm provides high acoustic efficiency. Especially in combination with powerful amplifiers, the FF6e unleashes its full potential and delivers clear and powerful sound even at high volumes without loss of audio integrity.

What are the Thiele-Small parameters of the Fortissimo FF6e?

The Fortissimo FF6e offers a variety of Thiele-Small parameters that optimize its performance. The mechanical quality Qms is 6.03, while the electrical quality Qes reaches 1.03. The total quality Qts is thus set at 0.88. These parameters are crucial for tuning in speaker design and significantly influence resonance and frequency characteristics. The Cms value is 0.532 mm/N, indicating a high compliance of the diaphragm. The Vas value of 11.3 L indicates the equivalent volume of air that moves the diaphragm, which is important for cabinet development.

How can the FF6e be integrated into the car?

The FF6e from Fortissimo can be flexibly installed in many vehicles thanks to its installation diameter of 143 mm and installation depth of 60 mm. Make sure that the mounting hole circle with 8 holes of 4.5 mm at 158 mm is correctly positioned to ensure stability. With an outer diameter of 165 mm, the mid-bass driver fits into standard openings of vehicle installations. The dimensions allow the FF6e to be easily integrated into both existing speaker spaces and custom-made installation locations, making it a versatile option for car audio enthusiasts.

What is the diaphragm stroke and mass of the Fortissimo FF6e?

The FF6e offers a linear diaphragm stroke of +/- 3.8 mm, which is an indicator of its ability to move air and thus generate volume. The stroke directly influences the sound pressure level and bass quality. The moving mass, Mms, is 11.3 g and affects the efficiency and speed of diaphragm movements. The lower the mass, the faster the response to electrical impulses, improving detail resolution. These technical characteristics ensure that the FF6e provides a quick, precise response and is ideal for complex, dynamic audio materials.

How does the voice coil diameter affect the sound of the FF6e?

The voice coil diameter of the FF6e is 25 mm and is made of aluminum, a material known for its high conductivity and heat dissipation. The associated voice coil winding width of 12.5 mm allows for efficient conversion of power into motion. Larger voice coils can handle higher power levels and are less prone to distortion, which is advantageous at higher volumes. The choice of aluminum also contributes to improved durability and resistance under demanding conditions. These factors directly influence sound precision and distortion-free output.

What materials are used in the Fortissimo FF6e?

The Fortissimo FF6e mid-woofer uses a coated paper diaphragm known for its lightness and stiffness. This material choice contributes to a clear sound profile and a quick response to signal changes. The 25 mm aluminum voice coil diameter offers high conductivity and good thermal properties, important for handling power and minimizing heat buildup. The magnet is equipped with a copper cap, which reduces magnetic dispersion and promotes linearity. These materials have been selectively chosen to ensure high audio quality and performance stability.

What advantages does the coated paper diaphragm of the FF6e offer?

The coated paper diaphragm of the Fortissimo FF6e combines several advantages. It is lightweight yet stiff, which helps reduce deformation under high load. This combination of lightness and stiffness ensures that the diaphragm responds quickly to changes in the audio signal and reproduces detailed sounds. The coating additionally protects the paper from moisture and other environmental influences. This keeps the frequency response stable, regardless of external conditions. Choosing such a diaphragm is ideal for applications where precision and consistency are required.

How does the impedance of 3 Ω affect the use of the FF6e?

The FF6e from Fortissimo has an impedance of 3 Ω, specifically tuned to the power output of amplifiers that can handle lower impedances. Such a speaker draws more current and can thus convert more power, leading to higher volume for a given voltage. This feature is particularly useful in automotive audio systems, where amplifiers typically operate with low impedances. The impedance also affects the frequency response and sound character, making it important to pair the speaker with compatible amplifiers to achieve the best audio performance.

Manufacturer information / responsible person

fortissimo
Dietmar Carle
Bahnhofstr. 23
88048 Friedrichshafen Kluftern
Germany

Contact: didi@fortissimo.de

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