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Violectric Niimbus US 5 Pro Headphone Amplifier

BH #VINIIMBUS5PR • MFR #NIIMBUS US 5 PRO
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Violectric Niimbus US 5 Pro Headphone Amplifier
Key Features
  • 2-Channel Audiophile Headphone Amplifier
  • Supports 4 to 600 Ohms Headphones
  • Two Unbalanced RCA Stereo Inputs/Outputs
  • Balanced Stereo XLR Inputs/Outputs
Built to deliver versatile and premium sound quality in a compact, desktop form-factor, the Niimbus US 5 Pro Headphone Amplifier from Violectric is a powerful, 2-channel audiophile headphone amplifier with both amp and pre-amp functions and enough power to drive any sized headphones, including dynamics, planars, and active loudspeakers. This handmade amp sports a 100% analog circuit and hand-selected components for uncompromising sound, and the wide ranging I/O ensures you can easily connect to any device, in any way you see fit, from RCA and XLR inputs, to 1/4", RCA, XLR, and 4.4mm outputs, all selectable from the front panel.
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Violectric NIIMBUS US 5 PRO Overview

Built to deliver versatile and premium sound quality in a compact, desktop form-factor, the Niimbus US 5 Pro Headphone Amplifier from Violectric is a powerful, 2-channel audiophile headphone amplifier with both amp and pre-amp functions and enough power to drive any sized headphones, including dynamics, planars, and active loudspeakers. This handmade amp sports a 100% analog circuit and hand-selected components for uncompromising sound, and the wide ranging I/O ensures you can easily connect to any device, in any way you see fit, from RCA and XLR inputs, to 1/4", RCA, XLR, and 4.4mm outputs, all selectable from the front panel.

The high damping factor makes the US 5 Pro an ideal choice for difficult to drive headphones, and the ultralow-noise operation pairs well with the oversized, high-voltage power supply to provide incredible detail and optimal performance on low-impedance headphones. With it's quad amplifier that delivers far more power than most demanding headphones require, and its compact metal chassis, the US 5 Pro is an ideal choice for any home studio, professional podcasting setup, or expansive home entertainment system.

2-in-1 Combo Amplification Box
Why choose between an audiophile-quality headphone amp and a powerful speaker pre-amp? The Niimbus US 5 Pro handles both with ease, thanks to the onboard circuit selection, which allows you to switch between an amp circuit designed for headphones and a pre-amp circuit designed for speakers. Just hit the front-panel buttons or use the included infrared remote control to send the output to the headphone or line outputs. The US 5 Pro can drive active speakers and control power amps without a sweat via its balanced XLR outputs, allowing you to enjoy a compact and fantastic sounding headphone amp or a premium speaker pre-amplifier, all in one box.
Comprehensive Analog I/O
With a multitude of analog input and output options, you will never be disconnected from your preferred devices with the US 5 Pro headphone amp. Front- and rear-panel options make it simple to wire your amp for use as the nerve center of your home entertainment system or a faithful companion to your home studio setup.

  • Two Balanced XLR 3-pin inputs (left and right)
  • Four unbalanced RCA inputs (left and right)
  • Two balanced XLR 3-pin line outputs (left and right)
  • Two unbalanced RCA outputs (left and right)
  • Balanced XLR 4-pin headphone output
  • Two unbalanced 1/4" headphone outputs
  • Balanced 4.4mm headphone output
Adaptive Features and Digital Control
The US 5 Pro sports robust and easy-to-use digital control options for it's analog circuitry. With motorized knobs, simple push buttons, and numerous automatic features that adapt to different devices and protect your amp from damage, the Niimbus US 5 Pro couldn't be easier, or safer, to use. And with the included aluminum infrared remote control, you can easily control all your settings wirelessly, including input selection, output selection, volume, and mute.

  • Onboard volume and balance control
  • Push buttons for input and output connector selection
  • Monitoring of headphone output based on DC and overload
  • Adaptation of line-out signal to the connected devices in the range of ±12 dB
  • Rear-panel DIP switches for controlling pre-amp and output amp gain from -12 to +12 dB
  • Solid aluminum infrared remote control
  • Delayed activation with power-on and immediate separation during power-off
  • DC, overload, and thermal protections
Excellent Build Quality
The US 5 Pro Headphone Amplifier is hand-constructed from top-notch materials, from the carefully selected internal analog components to the rugged aluminum and steel exterior, and is guaranteed to last you for years of use.

  • 100% analog signal path
  • Black anodized aluminum front and rear panel
  • 2mm sheet steel chassis with metallic coating
  • Remote control milled from a solid piece of aluminum
  • 60V internal operating voltage for high-impedance headphones with high-output voltage swing
  • 256-step volume control via relay and motorized balance control knob
  • Four powerful amps offering up to 7000mW max
  • Two oversized, toroidal transformers with more than 50,000 uF filter capacity
  • Handmade in Germany
EAN: 4262404460378

Violectric NIIMBUS US 5 PRO Specs

Key Specs
Number of Headphone Channels
2-Channel
Recommended Headphone Impedance
4 to 600 Ohms
Headphone Output Power
Up to 7000 mW
Audio I/O
1/4" / 4.4 mm Balanced / XLR 4-Pin Balanced (Headphone)
XLR / RCA (I/O)
Power Requirements
AC Input
Form Factor
Tabletop
Number of Headphone Channels
2-Channel
Recommended Headphone Impedance
4 to 600 Ohms
Headphone Output Power
7000 mW into 50 Ohms (0.01% THD, 1 kHz)
EQ
No
Display
No
Connectivity
Analog Audio I/O
2x 1/4" TRS Unbalanced Headphone Output
1x 4.4 mm TRRRS Balanced Headphone Output
1x XLR 4-Pin Balanced Headphone Output
2x XLR 3-Pin Balanced Line Input (1 Stereo Pair)
2x Stereo 2RCA Unbalanced Line Input
2x XLR 3-Pin Balanced Line Output (1 Stereo Pair)
1x Stereo 2RCA Unbalanced Line Output
Digital Audio I/O
No
Network I/O
No
USB
No
Performance
Frequency Response
5 Hz to 250 kHz ±0.5 dB
Maximum Input Level
Line:
+21 dBu (10 Kilohm Input Impedance)
Maximum Output Level
+21 dBu (1 Ohm Input Impedance)
Dynamic Range
> 135 dB (A-Weighted)
Impedance
Outputs:
0.1 Ohm (Unbalanced)
0.2 Ohm (Balanced)
THD+N
< -104 dB / < 0.00063% (At 1 kHz/2 x 10V/100R = 1W)
< -103 dB / < 0.00071% (At 1 kHz/2 x 4V/32R = 0.5W)
SNR
> 129 dB (A-Weighted)
Noise
< -104 dBu (A-Weighted)
Crosstalk
-105 dB (1 kHz)
-103 dB (15 kHz)
Power
Power Requirements
AC Input
AC Input Power
115 to 230 VAC, 50 / 60 Hz (T 1 A)
Ground Lift
No
AC/DC Power Adapter
No
Physical
Dimensions
13.8 x 9.8 x 2.3" / 35.1 x 24.8 x 5.9 cm (Chassis Only)
Packaging Info
Package Weight
17.515 lb
Box Dimensions (LxWxH)
18.7 x 15 x 6"

Violectric NIIMBUS US 5 PRO Reviews

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