6000A Integrated Amplifier
6000A Integrated Amplifier
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.
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.
No company knows more about making the most of this technically excellent, but challenging, DAC technology than Audiolab.
Analogue circuitryThe 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.
The preamp section is kept as simple as possible to maintain signal purity, with line input signals passing to a precision analogue volume stage. The latter covers the range from -80dB to +8dB in steps of 2dB and 1dB (step resolution increases with volume position). Much effort has gone into the physical layout of the 6000A’s circuitry, protecting the sensitive preamp section from noise interference.
|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)|
|>76dB (Phono MM, A-weighted)|
|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|
|Rated Max. Power Output||2 X 50W (8Ω, THD<1%)|
|2 X 75W (4Ω, THD<1%)|
|Frequency Response||20Hz-20kHz (+/-0.3dB)|
|Total Harmonic Distortion (THD)||<0.003% (1kHz @ 40W/8Ω)|
|Signal-to-Noise ratio (S/N)||> 110dB (A-weighted)|
|Max. Output Current||9A|
|Total Harmonic Distortion (THD)||< 0.01% (1kHz, 50mW)|
|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 80 x 330mm including feet, terminals and controls|
|Carton Size (mm) (W x H x D)||512 x 467 x 146|
"The Audiolab’s clean, crisp presentation comes through across the analogue and digital inputs alike. The DAC inside the 6000A is of a good standard, and it’s impressive to hear such a capable and composed sound at this price."
- Read the review from What Hi-Fi here.
"Audiolab’s 6000A is a cracking budget integrated with just the right amount of facilities, a snappy and engaging sound, sufficient power and fine build. A great buy for the modern music fan who wants plenty of flexibility. "
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