Nakamichi NBS210A active subwoofer

aktivní subwoofer 10\", 100 W RMS
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Active subwoofer Nakamichi NBS210A

The Nakamichi NBS210A is an active enclosure designed to sit against the side of the trunk, where it doesn't take up much space. The amplifier and its controls and connections are hidden on the rear side and are thus protected from damage when carrying everyday items. The enclosure is covered with black carpet that has a mottled finish to better match most vehicle interiors. This active subwoofer uses the now-rare acoustic design with a passive radiator to assist the main 25 cm subwoofer connected to the amplifier. It is the same cone but without the magnetic system and the centering washer. At the resonant frequency the passive radiator vibrates in sync with the main subwoofer and increases the dynamics of this enclosure. The system is powered by a compact class D amplifier with a relatively modest 100 W RMS output. In combination with a highly sensitive driver the output is fairly well-defined bass with decent acoustic pressure. For fine tuning a full set of tools is available: low-pass 40-160 Hz, phase switch 0 - 180°, subsonic filter fixed at 20 Hz, bass equalizer (bass boost) at 40 Hz and level control 0-12 dB. A remote control is included in the package.

Main features of the Nakamichi NBS210A subwoofer

Active subwoofer with two drivers.
Small dimensions for easy installation even in tight spaces.
Amplifier cleverly integrated in the rear of the enclosure.
Power 100 W RMS.
Interesting enclosure design.
Remote control included.

About the Nakamichi brand

The history of the Nakamichi brand dates back to 1948, when it was founded in Japan by Etsuro Nakamichi. The path to realizing his dreams began with the establishment of a small research institute, Nakamichi Research Corporation, in Tokyo, which carried out research of sonars and magnets and development for major brands, government entities, universities and organisations. Since then it has established itself as a trusted maker of high-quality products that are the result of intensive scientific work, a passion for sound and a determination to deliver uncompromising quality and performance. In 1972 Takeshi Nakamichi joined Nakamichi Corporation; he was associated with the company's growth and was deeply involved in all the legendary Nakamichi audio products sold in Asia, America and Europe, including the first introduction of the Nakamichi 1000, the world's first cassette deck. He was considered one of the world's best acoustic and sound engineers, able to combine top sound with the strengths of the brilliant design of audio products by Mr Kozo Kobayashi, the brand's chief engineer at the time. The amplifiers, players and car radios of that era are today legendary for their unbeatable quality. The Nakamichi brand remains successful today and produces high-quality products not only for home audio but also for vehicles. The manufacturer's cleverly thought-out portfolio continues to expand and practically all products excel in sound quality and almost unbelievable workmanship in their price category. Etsuro Nakamichi's legacy lives on and we are glad it is not just a famous name, but is also reflected in the quality of Nakamichi products.

Catalog number	NBS210A
Brand	Nakamichi
Links	Official web presentation
The diameter of the subwoofer usedThe diameter of the subwoofer that is installed in the active box.	10" (250mm)
RMS power of the subwooferThe RMS power of an active subwoofer is the constant power that the active subwoofer can play over a long period of time. We recommend following this value. The RMS power of active subwoofers is taken as the RMS power of the integrated amplifier, which in most cases is slightly undersized, which guarantees protection against subwoofer burning.	100W
Maximum subwoofer performancePeak performance or Max. power that an active subwoofer can play for a moment (approx. 0.5 s), for example when percussion instruments are struck in a recording. But it is not as important a parameter as the RMS power.	1000W
Frequency rangeThe ability of the device to reproduce a signal from the lowest frequency to the highest, or the ability of an active subwoofer to faithfully reproduce sound in a specific frequency band. Professionally: In the frequency range from 40 to 16,000 Hz, the vast majority of fundamental and overtones (harmonics) of all musical instruments are found. We are interested in the course of the radiated sound pressure in this range of frequencies when the loudspeaker system is supplied with constant power. We call this course the frequency characteristic, which tells us the level of radiated sound pressure in decibels (dB) depending on the frequency. The frequency characteristic of a speaker or speaker system can be expressed most succinctly with a graph. Mostly, however, the frequency characteristic is indicated by indicating the maximum tolerance of the sound pressure in the given frequency range, e.g. 50 to 15,000 Hz -+ 6 dB. since the frequency characteristics of loudspeakers and systems in general are quite uneven, some manufacturers do not even specify this maximum tolerance of sound pressure in decibels for reasons of prestige. Data impoverished in this way is worthless. What is valid is that the manufacturer offers a speaker system with a frequency range of 30 to 20,000 Hz, if he is worried about stating the maximum unevenness of the sound pressure in this range, because he can have a tolerance of, for example, +- 20 dB. The unevenness, i.e. the undulation of the frequency course in good speaker systems for quality music performance should not exceed +-3 dB in the 80 to 12,000 Hz band and +-6 dB in the 40 to 16,000 Hz band. Greater unevenness already depletes or emphasizes certain tonal areas, which can cause audible or even disturbing distortion. The proportion between fundamental tones and higher harmonics also changes, thereby changing the color of the sound, and individual musical instruments as well as the entire musical image sound unnatural.	40 - 160 Hz
Bass boost functionBass boost or bass enhancement. With this function, the bass itself can be emphasized, at a high level of bass boost, the speakers and the subwoofer can distort a lot and the sound will be worse than better. We therefore recommend using the "bass boost" function wisely.	Yes
High level inputThe high-level input on the active subwoofer enables connection directly to the speakers in the car without purchasing an external high/low converter. Use in the case of mounting an active subwoofer on the original car radio.	Yes
Automatic on and offThis function will facilitate your installation and solve the problem of finding a remote signal, which is sometimes a problem with original car radios. The active subwoofer with the Auto sense function can recognize that the equipment in the car is active and turn itself on. A useful and practical feature.	Yes
Cabling included in the packageSome active subwoofers have complete wiring included in the package. In the event that the package really includes complete wiring for connection, we mark the parameter as "yes". If the wiring is not included, it must be purchased.	No
Remote control included in the packageSome models of active subwoofers also have wired remote controls in the package, which on the one hand connect to the active box, and on the other hand you have a potentiometer that you can place anywhere in the cabin. A common place to place the remote control is under the steering wheel. The advantage is the regulation of power, and therefore volume, depending on driving conditions and the mood of the crew in the car.	Yes
What is the baffle made of?Active subwoofers can be made of MDF board, hardened plastic, sheet metal, aluminum or a combination of different materials.	MDF
Active subwoofer dimensions	300 x 275 x 318 mm
Mass	7.2 kg