Nakamichi NHPD600.1 Amplifier
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Nakamichi NHPD600.1 Amplifier
The Nakamichi NHPD600.1 is a 1-channel amplifier with minimal dimensions yet exceptional performance. Its solid aluminum chassis ensures efficient cooling and long lifespan, enhanced by modern Class D technology with high efficiency. With a high power output of up to 1 x 600 W RMS at 1 Ω, it is an ideal choice for powerful subwoofers with various coil configurations. Thanks to Class-D technology, you don’t have to worry about the amplifier overheating, and its compact size allows for flexible placement. The amplifier is equipped with robust power terminals for reliable connections. Despite its miniature size, it offers excellent sound quality and high performance in a body only 22 cm long. The Nakamichi NHPD600.1 is the perfect choice for those seeking a combination of high performance, versatility, and a space-saving design.
Main Features
- 1-channel Class D amplifier.
- Compact size with high power output up to 600 W RMS (1 Ω).
- Stable at 1 Ω, suitable for powerful subwoofers with various coil configurations.
- RCA and OEM high-level inputs.
- FULL / LP electronic crossover.
- Smooth input power control.
- Aluminum chassis and robust terminals for high load capability.
About Nakamichi
The Nakamichi brand's history dates back to 1948, when it was founded in Japan by Etsuro Nakamichi. His journey began with the establishment of a small research institute, Nakamichi Research Corporation, in Tokyo, Japan, which conducted research on sonars and magnets and developed for major brands, government entities, universities, and organizations. Since then, Nakamichi has established itself as a trusted creator of high-quality products, resulting from intensive scientific work, a passion for sound, and a commitment to uncompromising quality and performance. In 1972, Takeshi Nakamichi joined Nakamichi Corporation, contributing to the company's expansion and 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, successfully combining top-notch sound with the remarkable design of audio products by Koza Kobayashi, the brand's chief engineer at the time. The amplifiers, players, and car radios of that era are now considered legends, but the Nakamichi brand continues to be successful today, producing products for home and vehicle audio. The thoughtfully developed product portfolio continues to expand, offering an impressive balance of price and quality. Particularly the higher model ranges strive to follow the legacy of Etsuro Nakamichi, whose name continues to be reflected in the brand's products today.
| Catalog number | NHPD600.1 |
| Brand | Nakamichi |
| Links | Official web presentation |
| Energy class of the amplifierAmplifiers are divided into two basic classes: analog and digital . Analog amplifiers (A/B) have higher consumption requirements, but usually have a more natural sound. Digital amplifiers (D) have significantly lower consumption and higher efficiency, but the sound may not be as faithful as with classic analog amplifiers. | D |
| Number of amplifier channelsAmplifiers are divided into: - Monoblocks - 2-channel - 3-channel - 4-channel - 5-channel - 6-channel - multi-channel Each channel is used to power one speaker for the coaxial type, or one side if they are component speakers. Monoblock type amplifiers are mainly used for subwoofers. 2-channel are suitable for both subwoofers and, for example, the front pair of speakers in a car. 3-channel is used for front or rear speakers + subwoofer. 4-channel are used for front + rear speakers or 1 pair of speakers + subwoofer. 6 or 5-channel are used for 2 pairs of speakers + subwoofer, most often. Bridging means connecting the amplifier to a bridge, using the + pole from one channel and the - pole from the other channel. In most cases this is shown as "BRIDGED" on the amplifier. | 1 |
| RMS power into 4 ΩRMS power when loading speakers or subwoofer at 4 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier. | 1 x 260 W |
| RMS power into 2 ΩRMS power when loading speakers or subwoofer at 2 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier. | 1 x 450 W |
| RMS power into 1 ΩRMS power when the subwoofer is loaded at 1 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier. When connected to 1 Ω, significant heating of the amplifier may occur. | 1 x 600 W |
| Frequency rangeThe ability of the amplifier to reproduce the signal from the lowest frequency to the highest = faithfully reproduce the 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 in their catalogs for reasons of prestige. Data impoverished in this way is unfortunately 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 or undulation of the frequency curve in good speaker systems for high-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. | 20 - 20000 Hz |
| Harmonic Distortion (THD)Total harmonic distortion indicates how much the input signal is distorted in the amplifier. Distortions appear as overtones contained in the output signal. The proportion of originally absent parts of the signal is given as a percentage, typical values are between 0.001% and 0.5%. Distortion is measured in their power band. If it exceeds the limit of 0.7% from a certain power, it is the value of the output power of the given amplifier, from which it no longer plays without distortion and from which the distortion usually increases steeply, so that no further increase in power can be counted on. The lower the value, the better. | 0.2 % |
| Signal-to-noise ratioThe signal-to-noise ratio means that the output signal always contains noise. The signal-to-noise ratio expresses how much of this noise is compared to the useful signal. The so-called A value is given, which does not take deep and very high frequencies into account. This corresponds to the characteristic of human hearing, which is not so sensitive to deep frequencies, especially below 1 kHz. The higher the value, the better the amplifier is. | > 102 dB |
| Input sensitivityIn order for the amplifier to perform its function correctly, it requires an input signal of a certain level, which is different for car radios. It is measured in "Volts" (e.g. 2 V, 4 V, etc.) The higher the value at the output of the pre-amplifier, or car radio, the less demands are placed on the power of the amplifier. However, the amplifier must allow this input sensitivity, and for that reason this value is also given for the amplifier. | 0.2 to 6 V |
| Low-pass filter (LPF)LPF / LP or "low pass filter" offers the possibility to adjust the amplifier using a potentiometer so that the lower band plays only the frequencies in a certain band that you need. This filter is used to adjust the frequency range for the subwoofer, so that it does not overload or distort the sound. Example: Amplifiers most often have an LPF from 20 to 300 Hz. We recommend setting this potentiometer in the range of 45-80 Hz. | Yes |
| High level inputsThe high-level input on the amplifier allows connection directly to the existing speakers in the car without additional purchase of an external high/low adapter. Important equipment in the case of installing an amplifier on an original car radio. | Yes |
| Socket input terminalsFerrule terminals allow better wiring contact to the amplifier. It is also a more secure form of terminals. If you are tightening the sleeve terminals, we recommend retightening them after 1 day, as the connected cable gradually compresses. | Yes |
| Dimensions of the amplifier | 150 x 108 x 51 mm |
| Mass | 1.1 kg |
