Headphone Amplifier
Niimbus US 5 PRO

Product code: 120758
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AED 28,559
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Description

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Description

The Niimbus US 5 PRO is the successor to the popular headphone amplifiers US 4 / US 4+. The new amplifier offers the same unrivaled powerful, noise-free, and perfectly sounding headphone amplifier circuit that can drive any dynamic and planar headphones. The Niimbus US 5 is equipped with a preamplifier function for direct connection and control of amplifiers or active speakers. Almost all functions can be controlled using the stylish remote control.

Based on more than three decades of development experience from Lake People and the technical and visual requirements of the Violectric brand, taken to a new, previously unknown level of quality, the new name of the Niimbus devices logically means "Ultimate Series".

The devices symbolize special design, extraordinary technologies, and uncompromising quality and, of course, that they are "Handmade in Germany".

Features:

  • The volume control has 256 discrete levels
  • 18 ... +24 dB preamplification for optimal adaptation of the US 5 between the source and headphones
  • 4 powerful amplifiers with 7000 mW output power at 50 ohms and 32 V at 600 ohms
  • Headphone output monitoring for both direct current and overload
  • The line output and headphone output can be selected individually
  • Output impedance of 15 ohms

Versatility

Headphone amplifier? Preamplifier? Combination? The headphone and line outputs can be activated/deactivated using the buttons on the front panel or with the remote control. Connect not only headphones to the Niimbus US 5 PRO, but also power amplifiers or active speakers and enjoy a compact and fantastically sounding high-end headphone amplifier/preamplifier.

Convenience

Control the Niimbus US 5 PRO with a stylish remote control made from a single piece of aluminum. With the remote, you have access to volume control, mute, input selection, headphone output, and line output control.

Thanks to Niimbus US 5 PRO's unique technologies, it not only offers one of the most powerful headphone amplifiers on the market but also:

  • the lowest noise level due to minimal internal amplification, making the amplifier's self-generated noise inaudible
  • high output voltage of up to 50V internal working voltage, making it ideal for high-impedance headphones that require high output voltage
  • high output power, thanks to transistors that provide much greater power needed for even the most demanding headphones. Niimbus US 5 PRO is best suited for low-impedance headphones as well as models with planar-magnetic drivers
  • high damping factor due to low output impedance, making it perfect for difficult-to-drive headphones without any negative side effects and with a guarantee of uncompromising frequency response.

The amplifier has a fully symmetrical "dual mono" circuit with power supplied by two toroidal transformers and the capacitance of their storage capacitors is 50000 µF. To adapt to different headphones, there is a pre-amplification adjustment range from -18 to +24 dB.

The controls and headphone connectors are located on the front panel. There are volume and balance controls, input selectors, an infrared receiver window for the remote control, indicators, and a power button. The front panel is made of 10 mm thick aluminum, and the side parts of the housing are covered with narrow metal overlays held in place by magnets. The buttons on the front panel can activate the headphone and line outputs separately or together.

The fully redesigned analog amplifier circuit with 100% channel separation consists of manually selected audiophile components and is optimized to provide minimal noise levels and extremely high performance even with headphones with very low impedance.

Combined with the high-capacity capacitor power supply and high voltage, you get an extremely detailed and precise sound that is reproduced effortlessly in any environment and with any headphones, capturing all the nuances of the music. The difference from the US 5 model is that the US 5 PRO model uses a motorized potentiometer, while the volume control in the US 5 PRO is connected to a microcomputer which, in turn, controls a network of constant resistors through durable reed relays. This controller has 256 discrete volume levels.

Equipment:

  • amplifier
  • power cable
  • remote control
  • documentation
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Characteristics

Characteristics

Brand
Headphone output
6.35mm jack, XLR
Output connectors
6.35mm jack, 4.4mm jack, XLR, RCA
Power output

This is the useful power developed by the amplifier in the load resistance. Amplifiers are usually characterized by the highest power that can be obtained at the output, provided that the distortion does not exceed the specified permissible value. This power is called the output power of the amplifier.

Glossary of terms
7
Signal-to-noise ratio, dB

The higher signal-to-noise ratio, the clearer sound and the bigger the dynamic range provided by the system

Glossary of terms
129
The highest frequency, kHz

The upper limit of the frequencies reproduced by the device. The human ear hears the standard frequency range: 20 Hz – 20000 Hz.

Glossary of terms
200
Circuit design
discrete

The circuit with transistors used.

Словарь терминов
Color
Form factor
stationary

For use on a table or in a rack.

Словарь терминов
Input connectors
XLR, RCA
Material
metal
Preamplifier

A preamp is used as a hub to connect other components of the audio system. The preamp can be either integrated, or an autonomous device.

Glossary of terms
yes
Remote controller

The remote controller simplifies the use of the device

Glossary of terms
yes
Service life, months
24
Warranty, months
12