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Audiolab Audiolab 6000A Wharfedale EVO 4.1 6000A An amplifier remains the beating heart of any high-performance audio system, but in 2018 a tr.. Product #: Audiolab 6000A Wharfedale EVO 4.1 Regular price: $55,400.00 $55,400.00 100

Audiolab 6000A Wharfedale EVO 4.1

ยี่ห้อ: Audiolab
รหัสสินค้า: Audiolab 6000A Wharfedale EVO 4.1
พร้อมใช้งาน: 100
น้ำหนัก: 0.00kg
ขนาด: 0.00cm x 0.00cm x 0.00cm

ราคา: 55,400.00  43,900.00

6000A

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.


Wharfedale EVO 4.1

Wharfedale’s new EVO4 has grown out of the extensive research and development that produced the ELYSIAN flagship loudspeakers and borrows much of the technology involved in ELYSIAN. The primary focus is on the AMT development resulting in a radically different way of reproducing high-frequency detail efficiently and accurately. Similar cabinet technology to ELYSIAN provides a stable and solid foundation for the drive units with radiused edges to help integrate the driver output with the room acoustics. In addition the unique SLPP bass reflex system, as developed for ELYSIAN, is now incorporated in EVO4.

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.

No company knows more about making the most of this technically excellent, but challenging, DAC technology than Audiolab. If the circuitry that surrounds the ES9018 is not of sufficient standard, the resulting sound can seem a little cold and hard; treat it right, however, and the level of musical expression that this chip digs from the digital signal is captivating. Audiolab’s original, universally acclaimed M-DAC was one of the first home audio components to incorporate an ES9018 chip back in 2011, and the company has been honing its implementation ever since.

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 6000A’s circuitry, protecting the sensitive preamp section from noise interference. This, plus the use of independent low-noise power supplies for critical stages, helps to deliver a performance that rivals significantly more expensive analogue amplifiers, even before taking the 6000A’s impressive digital circuitry into account.

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. Its gain bandwidth and high slew rate ensure a dynamic, detailed and engaging performance with all manner of headphone types – more boxes ticked for this most integrated of integrated amplifiers.

6000A

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)
Output Impedance 120 ohm
Signal-to-Noise Ration (S/N) > 110dB (Line, A-weighted)
>76dB (Phono MM, A-weighted)
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
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
Weight  7.8kg (Net)

Wharfedale EVO 4.1

General description 2-way bookshelf speaker
Enclosure type bass-reflex
Transducer complement 2-way
Bass driver 5"(130mm) black woven Kevlar® cone
Mid driver -
Treble driver 30*60mm AMT
Sensitivity(2.83V @ 1m) 87dB
Recommended amplifier power 25-100W
Nominal impedance 8Ω Compatible
Minimum Impedance 3.5Ω
Frequency response (+/-3dB) 64Hz ~ 22kHz
Peak SPL 104dB
Crossover frequency 2.9kHz
Bass Extension (-6dB) 55Hz
DIMENSIONS HxWxD (MM) 335 x 210 x (285+10)mm
Net Weight 7.8kg/pcs
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