Description
audiolab 6000A Integrated Amp with Dac and Bluetooth
Overview:
The Sound of Science:- Outwardly, the Audiolab 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 stand alone DAC. As ever, Audiolab has turned to the ES9018 Sabre32 Reference chip family to perform D/A conversion, utilising ESS Technology’s 32-bit Hyper Stream 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 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.
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 Audiolab 6000A’s circuitry, protecting the sensitive preamp section from noise interference.
Specifications:
Pre amplifier
- Gain – Line: +8dB
- Gain – Phono: +55dBÂ MM
- Input Sensitivity – Line: 720mV (Volume = 0dB)
- Input Sensitivity – Phono: 3.1mV (MM, Volume=0dB)
- Input Impedance – Line: 10K
- Input Impedance – Phono: 47K//100pF
- Total Harmonic Distortion (THD: < 0.0004% (Line, 1KHz @ 2V, Volume = 0dB)
- Frequency Response: 20Hz-20kHz (+/-0.1dB)
- Output Voltage: 2.3V max. (Volume = 0dB)
- Output Impedance: 120Ω
- Signal-to-Noise Ratio – Line: > 110dB (A-weighted)
- Signal To Noise ratio – Phono: >76dB (MM, A-weighted)
Power amp Section
- Gain: +29dB
- Rated Power Output:2 X 50W (8Ω, THD<1%), 2 X 75W (4Ω, THD<1%)
- Input Sensitivity: 720mV
- Total Harmonic Distortion (THD: <0.003% (1kHz @ 40W/8Ω)
- Frequency Response: 20Hz-20kHz (+/-0.3dB)
- Output Voltage: 2.3V max. (Volume = 0dB)
- Max Output Current: 9A
- Signal-to-Noise Ratio: > 110dB (A-weighted)Â
DAC
- 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
Headphone Amplifier
- Total Harmonic Distortion (THD): < 0.01% (1kHz, 50mW)
- Output Impedance: 2.35Ω
- Load impedance: 20-600Ω
General
- Standby Power Consumption: <0.5W
- Power Requirements: 240V ~ 50 – 60Hz
- Dimensions W x H x D: 512mm x 467mm x 146mm
- Weight: 7.8kg (Net)
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