SM-103 Mk.II
Monaural Power Amplifier
Signature Series
A long history of excellence
The SM-100 was the very first power amplifier to come out of the Vitus Audio design studio. A true balanced amplifier that changed the marketplace and made clear what a monaural power amplifier should provide to the user. The initial design was housed in two chassis but we always intended to create a four chassis system to separate power circuitry from audio circuitry.
The development of the MP-M201 saw this dream become a reality and we took the development leaps forward made with that amp and the amazing advancements made in the SS-103 into the SM-103 creating a powerhouse that will astonish with micro detail and resolution.
No compromise
With a completely no-compromise design, the SM-103 Mk.II can take on the very finest products from around the world, regardless of their cost. Based on the SS-103, each SM-103 Mk.II uses only the finest matched transistors and super precision resistors to ensure optimal working conditions for the different stages of each module.
This amplifier redefines how close you can get to a live performance experience from your recordings. With future upgradability a given thanks to their internal modular design, this is an amplifier that will bring joy for many decades to come.
Finishing
The SM-103 Mk.II comes in White, Jet Black and Warm Silver as standard. Titanium Orange, Dark Champagne and Titanium Grey are our most popular unique finishes.
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 (Each) | XLR analogue | RCA analogue |
|---|---|---|
| Available | 1 | 1 |
| Sensitivity | 2 VRMS | 2 VRMS |
| Impedance | 10kΩ | 10kΩ |
| OUTPUT (Each ch.) | Speaker |
|---|---|
| Available | 2 set for bi-wiring |
| Impedance | 0.075Ω |
| Power WRMS (8Ω) | ~100W Class A / ~100W Class AB |
| Power WRMS (4Ω) | ~200W Class A / ~200W Class AB |
| Bandwidth | +800kHz |
| Signal to noise ratio | >100dB @ 1kHz |
| THD + noise | <0.01% |
| POWER CONSUMPTION | |
|---|---|
| Standby | <1W |
| Class AB | 126W |
| Class A | 215W |
| DIMENSIONS (Each) | ||
|---|---|---|
| Height | 310mm including feet | |
| Width | 435mm | |
| Depth | 601mm | |
| Weight | 75kg | |
| Material | Aluminium for body parts and heat sinks | |
Reviews and awards
- 2015 | SM-102 – Hifi Review (HK) – 2015
- 2011 | SM-101 – Super AV (HK) – 2011
- 2009 | SM-101 – Hifi Play (SG) – 2009
- 2006 | SM-101 – Audiophile (HK) – 2006
- 2006 | SM-100 – Hifi Review (HK) – 2006
- 2005 | SM-100 – Stereosound (JP) – 2005
- 2005 | SM-100 – Hifi Review (HK) – 2005
- 2004 | SM-100 – Hifi Review (HK) – 2004
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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.
Bespoke enquiries
