audiolab 6000A Aluminium Silver Integrisano Pojačalo
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The 6000A is the latest in a long time of Audiolab integrated Amplifiers with a pedigree that stretches back to the very first 8000A that made Audiolab an overnight sensation.
An amplifier remains the beating heart of any high-performance audio system, but in 2018 a truly versatile integrated amp needs to cover many bases – digital and analogue sources, wireless connectivity for portable devices, a phono stage to cater for vinyl playback, amplification for headphones as well as speakers… That’s a lot to pack in, whilst keeping performance high and the price tag affordable – and yet, that’s exactly what the 6000A delivers.
The Sound of Science
Outwardly, the 6000A bears strong resemblance to the 8300A with its rotary controls and large, central OLED display. Unlike its costlier, analogue-only sibling, it incorporates high-quality D/A conversion, enabling digital sources to be connected directly without an external DAC. It supplies four digital inputs, three line-level analogue inputs, an input for a turntable, wireless connectivity via Bluetooth and a dedicated headphone amp, in addition to its ability when driving loudspeakers.
Digital Circuitry
Much effort has been made to ensure the 6000A’s digital circuitry delivers the level of quality one might expect of a high-performance standalone DAC. As ever, Audiolab has turned to the ES9018 Sabre32 Reference chip family to perform D/A conversion, utilising ESS Technology’s 32-bit HyperStream architecture and Time Domain Jitter Eliminator to deliver ultra-low noise and high dynamic range.
Analogue Circuitry
The 6000A’s discrete Class AB power amp stage delivers 50W per channel into eight ohms, with a maximum current delivery of 9 Amps into difficult loads. The output stage of the discrete power amp circuits uses a CFB (Complementary Feedback) topology, ensuring superior linearity and excellent thermal stability, as the idle current is kept independent of the temperature of the output transistors. A substantial 200VA toroidal transformer, followed by 4x15000uF reservoir capacity (60000uF in total), helps the amp to maintain firm control of the music whilst enabling excellent dynamic range.
Turntables and Headphones
In recognition of the recent vinyl revival, Audiolab has included a phono stage for moving magnet phono cartridges – a high-quality, low-noise, JFET-based circuit with precise RIAA equalisation. Similarly, an increasing number of people are using headphones for music listening, so Audiolab has incorporated a dedicated headphone amp with current-feedback circuitry.
Gain (Max) |
+8dB (Line) +55dB (Phono MM) |
Input Sensitivity |
720mV (Line, Volume = 0dB) 3.1mV (Phono MM, Volume=0dB) |
Input Impedance |
10K (Line) 47K//100pF (Phono MM) |
Total Harmonic Distortion (THD) |
< 0.0004% (Line, 1KHz @ 2V, Volume = 0dB) |
Frequency Response |
20Hz-20kHz (+/-0.1dB) |
Output Voltage |
2.3V max. (Volume = 0dB) |
Signal-to-Noise Ration (S/N) |
> 110dB (Line, A-weighted) |
Digital to Analogue Conversion
D to A converter |
ES9018K2M |
Total Harmonic Distortion (THD) |
< 0.0006% (1KHz @ 0dBFS) |
Output Level (0dBFS, 1KHz) |
2.05V |
Max. Sampling Frequency |
192KHz |
Signal-to-Noise Ratio (S/N) |
> 112dB (A-weighted) |
Digital Filters |
Fast Roll-off , Slow Roll-off , Minimum Phase |
Power Amplifier Section
Gain |
+29dB |
Rated Max. Power Output |
2 X 50W (8 ohm, THD<1%) 2 X 75W (4 ohm, THD<1%) |
Frequency Response |
20Hz-20kHz (+/-0.3dB) |
Input Sensitivity |
720mV |
Total Harmonic Distortion (THD) |
<0.003% (1kHz @ 40W/8ohm) |
Signal-to-Noise Ratio (S/N) |
> 110dB (A-weighted) |
Max. Output Current |
9A |
Headphone Amplifier
Total Harmonic Distortion (THD) |
< 0.01% (1kHz, 50mW) |
Output Impedance |
2.35 ohm |
Load impedance |
20-600 ohm |
General
Standby Power Consumption |
<0.5W |
Power Requirements |
240V ~ 50 - 60Hz 230V ~ 50 - 60Hz 115V ~ 50 - 60Hz 100V ~ 50 - 60Hz |
Dimensions (mm) (W x H x D) |
445 x 65.5 x 300 |
Carton Size (mm) (W x H x D) |
512 x 467 x 146 |
Weight |
7.8kg (Net) |