Vitus SIA-030 Integrated Amplifier

The SIA-030 represents Vitus Audio's most ambitious statement in integrated amplifier design — a successor to the much-admired SIA-025 that does not merely improve upon its predecessor, but redefines what an integrated amplifier at this level can achieve. More power, more modularity, more options — and yet the same elegant, compact chassis that has made the Signature Series the reference point for discerning audiophiles worldwide. The SIA-030 is not an incremental update; it is a declaration of intent from engineers who refuse to accept the limitations of convention.

Power and Topology

The SIA-030 delivers 30W per channel in pure Class A into 8Ω — rising to 60W at 4Ω — before transitioning seamlessly into Class AB, where it produces 200W into 8Ω and 400W into 4Ω. This dual-mode topology gives the SIA-030 an effortless quality in real-world listening that single-mode designs cannot replicate: Class A purity at normal listening levels, and Class AB authority when the music demands it. A frequency response extending beyond 800kHz ensures that nothing within the audible range is compromised, while a signal-to-noise ratio exceeding 120dB and THD of less than 0.01% confirm that the SIA-030 operates at a level of technical refinement that renders noise and distortion effectively inaudible.

Volume Control

The SIA-030 employs a relay-controlled fixed resistor network for volume attenuation — a design that avoids the channel imbalance and signal degradation associated with conventional potentiometers. The network operates in 0.5dB steps across a range of -89dB to +13dB, giving the listener precise, repeatable control with no audible compromise at any setting.

Modular Architecture

The SIA-030's modular architecture is one of its most significant achievements — and one of its most practical. An optional plug-and-play DAC and streamer module (2022 version) adds AES, S/PDIF, optical, USB and Ethernet inputs with support for Airplay 2 and Roon, transforming the SIA-030 into a complete digital hub without cluttering the signal path for those who prefer analogue sources. An optional plug-and-play phono stage supports both MM and MC cartridges with up to 70dB of gain and individual settings stored for two RCA inputs — making the SIA-030 a genuinely complete solution for the vinyl enthusiast.

Finish Options

The SIA-030 is available as standard in Pure White, Jet Black, or Warm Silver. Titanium Orange, Dark Champagne, and Titanium Grey are among the most popular bespoke finishes. Prices range from £41,000 to £54,000 depending on specification — speak to us for a full breakdown.

Technical Specifications

Optional DAC / Streamer (Plug & Play — 2022 Version)

• 1 × AES input
• 1 × S/PDIF (RCA) input
• 1 × Ethernet for streaming (Airplay 2, Roon)
• 1 × USB supporting up to 2× DSD
• 1 × Optical input

Optional Phono Stage (Plug & Play)

• MM and MC support with up to 70dB gain
• 2 × RCA inputs with individual settings stored

Who Is It For?

The SIA-030 is for the audiophile who demands reference-level performance without filling a rack with separate components. Its modular architecture makes it the ideal foundation for a system that can evolve — beginning as a pure analogue integrated and expanding, at any point, to encompass digital streaming and vinyl replay of the highest order. Those considering separates should hear the SIA-030 alongside the Vitus SS-103 Power Amplifier and the Vitus SP-103 Phonostage before deciding — the SIA-030's coherence as a single chassis is a genuine and often underestimated virtue. For a source of equivalent ambition, the Vitus SD 025 MK2 is the natural partner.

Buying from Martins Hi-Fi

Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind. The SIA-030 is available to audition at our Norwich showroom — speak to Dave or Chris, who can guide you through the choice of specification, finish, and optional modules, and who will ensure the amplifier is matched to a system worthy of it. At this level, the conversation matters as much as the component.

Contact us at [email protected], call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.