SIA-025 Mk.II
Integrated Amplifier
Signature Series
Performance to challenge all comers
When we undertook the design and construction of the SIA-025 Mk.II, we knew that the task would be a formidable one if we were to preserve or even exceed the quality for which we are famous.
At its core was combining fully integrated circuitry in the same chassis as our legacy product, the SS-010, with no sacrifice in terms of size or noise. The technologies that this required already existed but had to be refined and optimised for their new roles.
Despite the inherent challenges, our design team refused to compromise upon the renowned Vitus Audio principles including the rule that no component is required to deliver more than 25% of that which it is capable of handling. This dramatically increases component longevity.
A ground-breaking product that has astonished the industry
The result of our design team’s efforts has been a technical and critical triumph – an amplifier with five inputs (balanced and unbalanced), a preamplifier output (for bi-amping purposes), balanced speaker outputs, and a full bypass function offering compatibility with external surround processors.
The balanced, fully integrated SIA-025 Mk.II performs to the standards our customers rightly expect from our Signature Series. It provides an aesthetically elegant system that delivers an incredible performance.
Finishing
The SIA-025 Mk.II comes in Pure White, Jet Black or Warm Silver as standard. Titanium Orange, Dark Champagne and Titanium Grey are our most popular unique finishes.
Pure White
Standard colour
Jet Black
Standard colour
Warm Silver
Standard colour
Titanium Orange
Unique colour
Dark Champagne
Unique colour
Titanium Grey
Unique colour
Technical specifications
| Input | XLR analogue | RCA analogue |
|---|---|---|
| Available | 3 (L+R) | 2 (L+R) |
| Sensitivity | 2/4/8 VRMS | 2/4/8 VRMS |
| Impedance | 10KΩ | 10KΩ |
| Output (Each Ch.) | Speaker | Pre out |
|---|---|---|
| Available | 1 | 1 (XLR) |
| Impedance | 0.075Ω | 33Ω |
| Power WRMS (8Ω) | ~25W Class A / ~150W Class AB | |
| Power WRMS (4Ω) | ~50W Class A / ~300W Class AB | |
| Frequency response | +800kHz | |
| Signal to noise ratio | >100dB @ 1kHz | |
| THD + noise | <0.01% | |
| Volume control | |
|---|---|
| Type | Relay controlled fixed resistor network |
| Steps | -81dB to +11dB in 1dB steps |
| POWER CONSUMPTION | |
|---|---|
| Standby | <1W |
| Class AB | 90W |
| Class A | 162W |
| Dimensions | |
|---|---|
| Height | 135mm including feet |
| Width | 435mm |
| Depth | 436mm / 471mm with binding posts |
| Weight | 37kg |
| Material | Aluminium for body parts and heat sinks |
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Bespoke
Create a Vitus Audio product in the style of your choosing. Our bespoke options include unique colour finishes and internal configurations to your requirements. Place your request with our team to create something just for you.
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