Technical Highlights

  • RMS power 150W, Max. power 300W, Impedance 4Ω.
  • Sensitivity 95±2dB, Frequency range 110Hz-10KHz.
  • Magnet 32 Oz, Voice coil 1.5", Paper cone, 72mm depth.
  • More technical details
Regular price €140.00
Regular price €140.00 selling price €140.00
2% discount with credit card
including VAT
Estimated delivery: Sep 14–Sep 17.
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Regular price €140.00
Regular price €140.00 selling price €140.00

Let yourself be fascinated by the KF-7 from Audio System Italy. This 6.5" (16.5cm) mid-bass speaker attracts all eyes with its impressive technical specifications. Its RMS power is 150W, while its maximum power reaches 300W. The KF-7 impresses with a sensitivity of 95±2dB at 1w/1m and a frequency range of 110Hz to 10KHz. Its unique construction with a 32 Oz magnet and a 1.5" voice coil ensures that it delivers sound at the highest level. Its paper cone and a mounting depth of 72mm complete the profile of this high-performance speaker.

Technical Data

  • RMS power (W) 150
  • MAX power (W) 300
  • Fs (Hz) 123
  • Impedance (Ω) 4
  • Sensitivity @1w/1m (dB) 95±2
  • Frequency range 110Hz 10KHz
  • Magnet 32 Oz
  • Swing coil 1.5"
  • Cone PAPER CONE
  • Installation depth (mm) 72
  • Installation diameter (mm) 145

Frequently Asked Questions about KF-7


What are the performance parameters of the KF-7 speaker?

The KF-7 from Audio System Italy offers an impressive RMS power of 150 watts, with a maximum power of a remarkable 300 watts. These power values make the KF-7 an ideal mid-bass driver for demanding applications where high volumes and dynamic sound reproduction are required. Such specifications allow the speaker to clearly reproduce a wide acoustic spectrum, especially at mid-high frequencies, which is advantageous in music-intensive situations.

What frequency range does the KF-7 cover?

The KF-7 speaker covers a frequency range from 110 Hz to 10 kHz. This range enables the mid-bass driver to efficiently reproduce both deep bass tones and higher mid frequencies, making it versatile for various music genres. The ability to handle this spectrum is particularly beneficial when reproducing complex musical pieces, as it can ensure both the warmth of low tones and the clarity of higher tones.

What is the sensitivity of the KF-7 speaker?

The KF-7 from Audio System Italy has a sensitivity of 95±2 dB at 1 watt/1 meter. This high sensitivity ensures that the speaker can achieve high volumes even with weaker amplifier signals. In situations where every decibel counts, such as in live setups or specialized car audio configurations, this presents a clear advantage, as high sound reproduction can be achieved with reduced energy.

What impedance does the KF-7 speaker offer?

The impedance of the KF-7 speaker is 4 Ohm. This impedance class is widely used and allows for efficient use with most commercial amplifiers, as it provides a good balance between power consumption and performance. In the car audio sector, this is particularly advantageous, as it eliminates the need for special amplifier solutions to ensure optimal sound reproduction.

What role does the magnet play in the KF-7 speaker?

The KF-7 is equipped with a 32 Oz magnet, which plays a crucial role in sound reproduction by generating a strong magnetic field that excites the voice coil to move, thus setting the cone into vibration. A solid magnet like this primarily contributes to the production of a powerful and detailed bass range, which is especially important in dynamic musical passages.

What distinguishes the voice coil of the KF-7 speaker?

The voice coil of the KF-7 has a diameter of 1.5 inches, indicating a robust construction that can withstand high thermal loads and thus delivers continuous high performance. This design is ideal for applications where high power and precision are paramount, as a stable thermal capacity is ensured. Additionally, it is surrounded by a paper cone that contributes to a warm and resonance-free sound profile, particularly useful for reproducing mid-tones.

What are the dimensions of the KF-7 speaker for installation?

The KF-7 features a mounting depth of 72 mm and a mounting diameter of 145 mm. These dimensions allow for versatile applications, especially in car audio systems that require a specific installation depth. When installing, you should ensure that the cavity at the installation site is deep enough to fully accommodate the speaker without compromising sound reproduction.

Can the KF-7 be installed in any vehicle?

Regarding compatibility with vehicles, it should be noted that the KF-7, with its dimensions of 145 mm in diameter and 72 mm in depth, does not automatically fit into every speaker cavity. Interestingly, however, many modern vehicles are designed to allow for a more flexible speaker selection, especially in models that are set up for aftermarket solutions. Therefore, a thorough check of the available installation spaces in the vehicle is advisable.

What are the sound characteristics of the PAPER CONE in the KF-7?

The paper cone of the KF-7 speaker is a deliberate choice for those who prefer natural sound reproduction, as paper is known to have advantageous acoustic properties. The use of paper allows the speaker to produce a warm and precise sound profile, which is particularly beneficial for acoustic recordings and vocals. Paper cones are also lighter and therefore respond sensitively to signals, leading to detailed sound reproduction.

Are there any special notes for positioning the KF-7 speaker?

When positioning the KF-7 speaker, it is important to consider the spatial conditions as well as the height and direction of sound dispersion. Careful positioning ensures that the sound is evenly distributed in the room without unwanted reflections. Due to its dimensions and design, the speaker should be mounted firmly and securely to minimize potential vibrations. Especially when installing in vehicles, careful attention must be paid to securing it to fully realize the sound.

Manufacturer information/responsible person

fortissimo
Dietmar Carle
Bahnhofstr. 23
88048 Friedrichshafen Kluftern
Germany

Contact: didi@fortissimo.de"