Integrated amplifiers — Vitus Audio SIA-025 MK.II

Name: SIA-025 MK.II
Brand: Vitus Audio
Rating: 100 (1 reviews)

Description, images, technical data and specifications

Vitus Audio SIA-025 MK.II
Image source — © Vitus Audio

SIA 025 Mk.II is made symmetrically in the form of a dual mono idea centered on a massive mains transformer. The impression created behind the cover is reminiscent of the huge engine compartment of a 12-cylinder Jaguar from the 1980s: filled to the brim. The circuit is designed in a now rare form of Class A amplification, which is also applicable for comparison with 12-cylinder engines. Although the output power is minimal (25 watts at 8 ohms or 50 watts at 4 ohms), there is no cross-distortion inherent in efficient amplifier circuits.

Specifications

Model name
SIA-025 MK.II
Type
Integrated Amplifier
Analog inputs (balanced)
3
Analog inputs (single-ended)
2
Input sensitivity (mV)
8000
Input impedance (balanced) (Ω)
10 000
Input impedance (single-ended) (Ω)
10 000
Output impedance (balanced) (Ω)
33
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
150
Output power (4Ω) (W)
300
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
800 000
Signal to Noise Ratio (dB)
>100
Total Harmonic Distortion + Noise (%)
<0.01
Damping factor
N/A
Dimensions (mm)
135 × 435 × 436
Weight (kg)
37
Official link
https://www.vitusaudio.com/products/sia-025-mk-ii/

Vitus Audio RI-101 MK.II

Vitus Audio SIA-030

More components

Integrated amplifiers
Vitus Audio SIA-030
Vitus Audio SIA-030 boasts a 2.2 KVA transformer, fully vibration-proof. The capacity of the main capacitor bank is 400,000 uF, the additional one is 216,000 uF. The pre-gain section is completely shielded. All Vitus Audio SIA-030 modules can be upgraded in the future.
Integrated amplifiers
Vitus Audio RI-101 MK.II
The overall design of the new RI-101 is the same as that of the original RI-100 with identical power and output stages. But that's where the similarities end.