RI-101 MK.II Integrated Power Amplifier By Vitus Audio

Expression, Emotion, Finesse.

Three words perfectly capture the essence of the RI-101 Mk.II: performance, refinement, and emotion. This high-end integrated amplifier, part of the esteemed Vitus Audio Reference Series, redefines expectations for sound quality in its class, delivering an unparalleled listening experience.

Designed with precision and elegance, the RI-101 Mk.II boasts minimalistic styling that complements any audio system. Its exceptional engineering ensures it stands out among solid-state integrated amplifiers, offering both remarkable performance and enduring reliability. With the flexibility to expand your system using other components from the Reference Series, the RI-101 Mk.II is an investment in sonic excellence that will elevate your audio experience for years to come.

Everything connected

The RI-101 Mk.II is designed to be the powerhouse at the core of your audio system. It features three XLR (balanced) and two RCA (unbalanced) inputs, with the option to add a DAC board for expanded connectivity, including a streamer (Ethernet) input, an S/PDIF (RCA) input, and an AES (XLR) input. Delivering 300 watts per channel into 8? speakers and 600 watts into 4?, it effortlessly drives even demanding setups.

This latest version introduces significant upgrades, including an improved input stage and pre-amplifier section, delivering enhanced resolution and a deeper, quieter soundstage. With a lower noise floor and the inclusion of the advanced high-resolution volume control from flagship models, the RI-101 Mk.II offers exceptional precision and detail for an unparalleled listening experience.

Edgar Kramer, Editor-in-Chief at SoundStage Australia, praises the RI-101 for its exceptional audio performance, stating: “The Vitus Audio RI-101 is a stupendous sonic performer, excelling at the vividness and life of music… tight, punchy and detailed bass jumps from the mix while the RI-101 amplifier simply thinks, ‘Is this all you’ve got?’” This glowing endorsement highlights the amplifier’s ability to bring music to life with remarkable clarity, dynamic bass, and effortless power.

Enhance your listening experience with the RI-101 Mk.II’s optional 2023 DAC/Streaming module, now Roon Ready certified for seamless integration with your Roon system. This module also offers broad streaming support, including Mconnect, UPnP/DLNA, Tidal Connect, Spotify Connect, V-Tuner, and Qobuz, among others. Enjoy effortless access to your favorite music services with cutting-edge connectivity and performance.

Finishing

The RI-101 Mk.II is available in timeless standard finishes, including Pure White, Jet Black, and Warm Silver. For those seeking a more distinctive look, popular unique finishes such as Titanium Orange, Dark Champagne, and Titanium Grey offer an elevated aesthetic to suit any style.

Stereophile
“As someone spoiled by preamplifier/monoblock combinations that cost more than five times the price of the Vitus RI-101 Mk.II, I did my best to temper expectations before beginning this review. What a relief to discover that throughout my time with this integrated amplifier, the phrase “I could live happily with this baby for a long time” played on repeat in my head.”

https://www.stereophile.com/content/vitus-ri-101-mkii-streaming-integrated-amplifier

Tone Magazine
“For anyone wanting a world-class system without a rack full of gear, the Vitus Audio RI-101 is an excellent choice, no matter what speakers you currently own.”

https://www.tonepublications.com/review/the-vitus-audio-ri-101-integrated-amplifier

HiFi Wigwam (George Shallit)
“I had to force myself to keep notes as I kept getting lost in the music. The amplifier showed no ‘favouritism’ to any genre of music. It had no issues with reproducing all my music, even opera… If it does not move you, get a Vitus and if that fails, check your pulse.”

Mono and Stereo (RI-101 Integrated)
“The RI-101 MK2 stuns with sonic authenticity and intoxicating Technicolor-like warmth. Like the ethos of the company’s founder, Vitus Audio’s entry into the world of the amplifier portfolio is bold and forthright when it comes to performance.”

https://www.monoandstereo.com/vitus-audio-ri-101-mk2-integrated-amplifier-review

Input XLR analogue

• Available: 3 (L+R)
• Sensitivity: 2 VRMS
• Impedance: 16k?

Input RCA analogue

• Available: 2 (L+R)
• Sensitivity: 2 VRMS
• Impedance: 16k?

OUTPUT (Each Ch.) Speaker

• Available: 1 set balanced
• Impedance: 0.075?
• Power WRMS (8?): ~8W Class A / ~300W Class AB
• Power WRMS (4?): ~16W Class A / ~600W Class AB
• Bandwidth: +800kHz
• Signal to noise ratio: >100dB @ 1kHz
• THD + noise: 0.04% @ 100W / 1kHz

OUTPUT (Each Ch.) Pre/Tape out

• Available: 1(XLR)
• Impedance: 33?

Volume Control

• Type: Relay controlled fixed resistor network
• Steps: -80dB to +8dB in 1dB steps

POWER CONSUMPTION

• Standby: <1W
• Operation: 90W (no load)
• Operation with DAC Streamer: 120W (no load)
• Operation with USB DAC: 120W (no load)

Dimensions

• Height: 182mm including feet
• Width: 435mm
• Depth: 470mm (with connectors)
• Weight: 38kg (w/o DAC/Streamer)
• Material: Aluminium for body parts and hidden heat sinks

DAC / Streamer Board (optional 2023 version)*
Inputs Streamer

• Connector: 1 x RJ45
• Max S/Rate: 384kHz + DSD128** + 384MQA
• Resolution: 32bit

Inputs S/PDIF

• Connector: 1 x RCA
• Impedance: 75?
• Max S/Rate: 192kHz
• Resolution: 24bit

Inputs AES/EBU

• Connector: 1 x XLR
• Impedance: 110?
• Max S/Rate: 192kHz
• Resolution: 24bit

USB DAC Board (optional)*
Inputs USB

• Connector: 1 x USB B
• Max S/Rate: 192kHz + DSD128
• Resolution: 32bit

Inputs Optical

• Connector: 1 x Toslink
• Max S/Rate: 96kHz
• Resolution: 24bit

Inputs S/PDIF

• Connector: 1 x RCA
• Impedance: 75?
• Max S/Rate: 192kHz
• Resolution: 24bit

Inputs AES/EBU

• Connector: 1 x XLR
• Impedance: 110?
• Max S/Rate: 192kHz
• Resolution: 24bit

Vitus Warranty Guide

RI-101 Mk.II Information