Violectric Niimbus US 5 PRO

The Violectric Niimbus US 5 PRO is a reference-grade headphone amplifier and line preamplifier engineered for critical mastering applications and uncompromising audiophile playback. Operating on an exceptionally high internal voltage within a fully balanced dual-mono architecture, it delivers a clinically precise signal completely devoid of distortion or coloration. This unit provides an analytical window into the mix, unmasking the most subtle transients and micro-details while maintaining absolute tonal neutrality.

Massive Output Power and Pre-Gain Control

Driving demanding, large-format planar magnetic drivers or high-impedance studio monitors requires an immense power reserve that doesn't artificially inflate the noise floor. The Niimbus US 5 PRO outputs a staggering 7000 mW into 50 Ohms and up to 32 V RMS into a 600 Ohm load. To seamlessly accommodate this extreme dynamic swing without overloading sensitive in-ear monitors (IEMs), the amplifier features a dedicated Pre-Gain architecture. This allows tracking and mastering engineers to adjust the internal gain staging between -18 dB and +18 dB, perfectly matching the amplifier's sensitivity to the connected transducer and ensuring a pitch-black noise floor under any condition.

256-Step Relay Volume Precision

Conventional volume potentiometers inevitably suffer from channel tracking imbalances, which severely compromises the stereo image at lower listening levels. The PRO version entirely circumvents this hardware limitation by utilizing a highly advanced, 256-step resistor ladder network controlled by premium reed relays. Attenuation is executed in precise 0.4 dB increments, guaranteeing flawless channel matching and phase coherence at any volume setting. This exact spatial accuracy is mandatory for mastering engineers evaluating panning, reverb tails, and critical stereo width.

KEY FEATURES

• Massive output stage delivering 7000 mW (50 Ohms) and 32 V RMS (600 Ohms) to drive the most demanding planar and dynamic headphones.
• Advanced 256-step relay-controlled resistor ladder network (exclusive to the PRO version) offering 0.4 dB volume increments.
• Rear-mounted Pre-Gain adjustment system (-18 to +18 dB) ensuring optimal matching for both high-sensitivity IEMs and low-efficiency planars.
• Fully balanced dual-mono circuitry operating on an exceptionally high 50 V internal operating voltage for limitless transient response.
• Comprehensive line preamplifier functionality managed via an included solid aluminum infrared remote control.

TECHNICAL SPECIFICATIONS

• Amplifier Type: Solid-state headphone amplifier / line preamplifier (Dual Mono)
• Analog Inputs: 1x Balanced XLR, 2x Unbalanced RCA
• Line Outputs (Pre-Out): 1x Balanced XLR, 1x Unbalanced RCA
• Headphone Outputs: 1x 4-pin XLR (Balanced), 1x 4.4 mm Pentaconn (Balanced), 2x 6.3 mm / 1/4" Jack (Unbalanced)
• Maximum Output Power: 7000 mW (50 Ohms)
• Maximum Output Voltage: 32 V RMS (600 Ohms)
• Volume Control: 256-step relay-controlled resistor ladder
• Pre-Gain Range: -18 dB to +18 dB
• Remote Control: Included (controls volume, inputs, outputs, and mute functions)