3. NSI-CS670

NSI-CS670

120 Watt

NSI-CS670

Technical Highlights

  • The woofer offers 120 W nominal power, 3 Ω impedance, 840 W peak.
  • The tweeter has 30 W nominal power, 4 Ω impedance, 210 W peak.
  • Ferrite and neodymium magnets, sensitive at 88±3dB, frequency 50 Hz-20 kHz.
  • More technical details
€409.37
€349.00 €409.37
2% discount with credit card

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ProductNSI-CS670

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Nakamichi-NSI-CS670-6.5" (16,5cm) Lautsprecherset-masori-kaufen
€409.37
€349.00 €409.37

The Nakamichi NSI-CS670 is a 6.5-inch Speaker Set, consisting of a 165-mm woofer and a 25-mm tweeter. The woofer has a rated power of 120 W and a peak power of 840 W, while the tweeter is specified with a rated power of 30 W and a peak power of 210 W. The construction combines ferrite magnets in the low-frequency range with neodymium magnets in the high-frequency range. The system covers a frequency range from 50 Hz to 20 kHz. The impedance of the woofer is 3 Ω and that of the tweeter is 4 Ω. For installation, a depth of more than 74 mm is required for the woofer and over 16.5 mm for the tweeter.

Features
  • 6.5-inch (16.5 cm) Speaker Set
  • 165-mm woofer with ferrite magnet
  • 25-mm tweeter with neodymium magnet
  • Rated power woofer: 120 W
  • Peak power woofer: 840 W
  • Rated power tweeter: 30 W
  • Peak power tweeter: 210 W
  • Impedance woofer: 3 Ω
  • Impedance tweeter: 4 Ω
  • Voice coil woofer: KSV 30.5 mm
  • Voice coil tweeter: ASV 25.4 mm
Technical Specifications
  • Frequency response woofer: 50-10 kHz
  • Frequency response tweeter: 1500 Hz-20 kHz
  • Sensitivity woofer: 88±3dB
  • Sensitivity tweeter: 90±3dB
  • Installation depth woofer: 74 mm
  • Installation depth tweeter: 16.5 mm
  • Magnet weight woofer: 371 g
  • Magnet weight tweeter: 8.4 g
  • Net weight woofer: 1.54 kg
  • Net weight tweeter: 89.4 g

Frequently Asked Questions about NSI-CS670

How much power does the NSI-CS670 subwoofer provide?

The NSI-CS670 subwoofer from Nakamichi has a rated power of 120 watts with an impressive peak power of 840 watts. These power ratings allow the speaker to deliver clear and distinct sound reproduction even at high volumes. It is important to note that this power is supported by a combination of ferrite and neodymium magnets, which achieve efficient conversion of electrical energy into sound energy. This combination of materials and the high power range make this subwoofer ideal for users who desire powerful bass reproduction in their audio system.

What frequency ranges does the NSI-CS670 Speaker Set cover?

The NSI-CS670 Speaker Set from Nakamichi offers a frequency range of 50 Hz to 20 kHz. This range ensures that both the subwoofer and the tweeter can cover a wide array of frequencies. The subwoofer specializes in the lower range of 50 Hz to 10 kHz, guaranteeing rich and dynamic bass. At the same time, the tweeter covers the higher frequencies from 1.5 kHz to 20 kHz, providing clear and detailed highs. This overall frequency coverage allows for a balanced sound experience that captures all aspects of an audio signal.

What installation depths are required for the NSI-CS670 speakers?

For the installation of the NSI-CS670 Speaker Set from Nakamichi, specific installation depths are required. The subwoofer has an installation depth of over 74 mm, while the tweeter has an installation depth of over 16.5 mm. These measurements are crucial for finding the appropriate installation space in the vehicle, ensuring that the speakers can operate optimally. Make sure that the installation spaces in your car can accommodate these depths to ensure the best sound quality and secure installation.

How sensitive are the NSI-CS670 speakers?

The sensitivity of the NSI-CS670 Speaker Set from Nakamichi varies between the woofer and tweeter. The woofer has a sensitivity of 88±3 dB/W/m, while the tweeter offers a sensitivity of 90±3 dB/W/m. These values refer to the speakers' ability to convert electrical input into acoustic output. Higher sensitivity means that less power is required to achieve a certain sound pressure level, which is particularly flexible when integrating into existing car hi-fi systems.

What types of magnets are used in the NSI-CS670?

The NSI-CS670 Speaker Set from Nakamichi employs two different types of magnets to achieve a balanced sound quality. The woofer uses a ferrite magnet weighing 371 g (20.2 ounces), optimized for low-frequency sound reproduction. The tweeter, on the other hand, uses a neodymium magnet that weighs only 8.4 g (0.3 ounces), allowing for a lightweight design that reproduces high frequencies from 1.5 kHz to 20 kHz with high precision. The combination of these magnet types enhances both the efficiency and sound quality of the speaker set.

How do I install the NSI-CS670 Speaker Set in my vehicle?

Installing the NSI-CS670 Speaker Set from Nakamichi requires basic steps focusing on installation depth and mounting. Ensure that the intended installation location provides enough depth: the woofer needs more than 74 mm, and the tweeter at least 16.5 mm. Remove the trim and drill appropriate openings if necessary. Pay attention to correct polarity when wiring and avoid tight cable bends to minimize power loss. Placement should be chosen to avoid any obstructions even at full excursion of the membranes.

Can I use the NSI-CS670 in different vehicle models?

The NSI-CS670 Speaker Set from Nakamichi can generally be integrated into a variety of vehicle models, provided that the given installation depth of more than 74 mm for the woofer and 16.5 mm for the tweeter is available in the car's speaker compartments. Since the speakers do not have a specific assignment to car brands, it is important to check the dimensions in advance to avoid complications during installation. Consider whether additional mounting adapters are necessary to ensure a precise installation.

What is the weight of the NSI-CS670 speakers?

The NSI-CS670 Speaker Set from Nakamichi is relatively lightweight due to its high-quality materials. The woofer has a net weight of about 1.54 kg, which contributes to stability and minimizes disruptive vibrations. The tweeter, on the other hand, weighs significantly less, at only 89.4 g. The different weights reflect the specific requirements of the woofer and tweeter design and indicate a thoughtful design that prioritizes sound performance and ease of installation.

What voice coils are used in the NSI-CS670 speakers?

The NSI-CS670 speakers from Nakamichi are equipped with different voice coils that are tailored to the requirements of the woofer and tweeter. The woofer uses a 30.5 mm voice coil, while the tweeter is equipped with a 25.4 mm voice coil. These voice coils are crucial for ensuring the most lossless conversion of electrical signals into mechanical movement, thus securing excellent sound quality across the entire frequency range.

What are the impedance values of the NSI-CS670 speakers?

The NSI-CS670 Speaker Series from Nakamichi is designed so that both components have specific impedance values to achieve the highest possible efficiency in the system. The woofer has an impedance of 3 Ω and the tweeter has an impedance of 4 Ω. These values are critical when connecting to amplifiers or radio units, as they affect performance and current flow. A precise match of the impedance with the amplifier is important to optimize acoustic performance and avoid overheating or damage.

Manufacturer information/responsible person

Elofssons Försäljnings AB
Björn Elofsson
Gruvgatan 31A
421 30 Västra Frölunda / Gothenburg
Sweden

Contact: support@dbakuten.se

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