Descrizione
Canor Virtus A3
Canor Virtus A3 is a Dual Mono layout, fully differential balanced hybrid integrated tube amplifier supporting both digital and analog inputs. Above all, analog and digital signal paths are designed in dual mono configuration with fully independent multi-stage regulated power supplies for each channel. In addition, the analog signal path is fully balanced and implemented by discrete symmetrical gain stages at the input equipped with dual paired JFET transistors.
The 100+ W Power amplifier features a tube-based balanced differential input stage and differential feedback paths followed by a Class A Current Dumping output stage where a low-power Class A amplifier is always in control of the speaker load with a high-power class AB stage providing the heaver load current. This unique Current Dumping topology ensures that the low-power ultra linear Class A stage is always in control of the speaker load with the brute “force” power provided by the Class AB stage – this Class AB stage effectively isolates the “delicate” Class A stage from the “complex” speaker load currents. Moreover the topology ensures that there is no transition between class A and AB operating modes, resulting in the benefits of superior Class A audio performance and Class A signal linearity with the benefits of lower Class AB power dissipation.
Details:
The power amplifier features differential feedback, thereby sensing the Audio Output signal on both the positive and negative speaker terminals for maximum linearity. The Tube input stage has been chosen not just for the classic benefits of tube sound but also as tubes offer the least sensitivity to external RF interference – unwanted RF energy can result in intermodulation artifacts that are typically associated with a “hard and bright sound”. Similarly, tube input stage of the amplifier is driven fully differentially from the analog or Digital signal paths and results in typical distortion figures of 0.0002 % at 1 W / 1 kHz with a signal-to-noise ratio at just 1 W of greater than 16-bit resolution.
Specifications:
| Amplifier Class | A + AB |
| Stereo Output Power | 2 x 150 W / 4 Ω (IHF Dynamic Power) 2 x 100 W / 8 Ω (IHF Dynamic Power) |
| Headphone Unbalanced Output | 500 mW / 30 Ω 70 mW / 300 Ω |
| Headphone Balanced Output | 500 mW / 30 Ω 270 mW / 300 Ω |
| Gain | 34.5 dB |
| Input Sensitivity | 550 mV |
| Gain Phono | MM 40 dB MM 46 dB MC 60 dB MC 66 dB |
| Damping Factor | 180 / 4 Ω 380 / 8 Ω |
| Frequency Range | 10 – 35 000 Hz (± 0.5 dB / 5 W) |
| Input Impedance | 50 kΩ |
| Analog Inputs | 1 pair RCA (Phono) 2 pairs RCA 2 pairs XLR |
| Analog Outputs (Variable Out) | 1 pair RCA 1 pair XLR |
| Digital Inputs | 2 x COAX (PCM up to 24-bit / 192 kHz) 2 x OPTO (PCM up to 24-bit / 192 kHz) 1 x USB-C (PCM up to 32-bit / 768 kHz & Native DSD up to DSD512 & DoP up to 256) 1 x AES/EBU (PCM up to 24-bit / 192 kHz) |
| DAC Configuration | 2 x ES9038Q2M (Dual Mono) |
| Headphone Outputs | 6.3 mm jack 4-pin XLR |
| Total Harmonic Distortion | < 0.005 % / 1 kHz, 5 W < 0.008 % / 1 kHz, 1 W |
| Signal-to-noise ratio | > 90 dB (20 Hz – 20 kHz) |
| Tube Complement | 2 x E88CC |
| Trigger Connectors (12 V) | 1 x IN (3.5 mm jack) 2 x OUT (3.5 mm jack) |
| Power | 115 / 230 V, 50 – 60 Hz, 820 VA |
| Dimensions (W x H x D) | 435 x 130 x 460 mm |
| Weight (Net) | 18 kg |
