UK CREEK/Langquan EVOLUTION 50CD CD player USB decoding
In order to cater to the increasingly popular digital streaming, CREEK, a famous British HIFI manufacturer, solemnly launched the EVOLUTION 50CD. This is the first digital product in CREEK''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s history. It has two audiophile-grade 24-bit 192 kHz DAC chips, which run in double differential mode to achieve good performance.
EVOLUTION 50CD uses various sampling signals, low-jitter and high-performance clock relays on the sampling rate. With its ultra-thin casing and luxurious front panel with black or silver brushed aluminum, the LED display provides higher clarity and resolution than ordinary displays. Surprisingly, this is not only a CD player, but also a high-quality digital/analog decoder. It can handle 6 different music sources, including CD input, USB input, and two sets of optical fiber inputs. , Two sets of SPDIF digital inputs.
David Gamble, a senior engineer of Langquan, is responsible for the overall design and development of EVOLUTION 50CD. On the basis of maintaining the same line as the earlier Langquan products, EVOLUTION 50CD uses a specified toroidal power transformer with a separate winding that is higher than the specification standard. Analog and digital circuits have good noise suppression against low magnetic field interference. A 25-watt toroidal power transformer, 3 independent secondary voltage windings, multiple sets of low-resistance capacitors, combined with a variety of ultra-low noise separated power regulators, multiple low-impedance capacitors and voltage regulators for optimizing performance, organic Polymer capacitors are used in key analog and digital circuits, high-grade WIMA polypropylene capacitors, etc. CREEK Langquan will continue to express CREEK Langquan''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s sincerity to the majority of music lovers at no cost. What is more rare is that Langquan is doing this Under the high standard configuration, it can still maintain a high cost performance.
Technical Parameters
Digital input 2 x SPDIF, 24 Bit 192 kHz, transformer isolated
2 x Toslink, 24 Bit 192 kHz, optically isolated
1 x USB, 24 Bit 96 kHz, galvanically isolated
CD turntable part Special customized slot-in turntable, external independent clock control
SNR > 110dBA unbalanced
Digital output 1 x SPDIF and 1 x Toslink optical output, pass-on all input signals
Digital filter The digital filter mode can be selected through the remote control
Analog output 2 x RCA un-balanced, 2.0V RMS. 2 x XLR balanced output, 4.0V RMS
Audio buffering level Op-amp audio buffering and filtering
Output impedance 47 Ohms
Power supply part 25 watt ring cow, 3 groups of independent secondary windings, power rectification of ultra-low noise discrete components
RC Bus Input/output connection for external IR remote and serial link to Evolution 50A.
DAC decoding part 2 x Wolfson WM8742, 24 Bit 192 kHz, double differential structure
Input digital receiver WM8805, multi-channel digital receiver chip
Voltage 100 – 120V/ 200 – 240V, Switchable
Power consumption 20 ??Watts (when idle)
Weight 5.5kg
Size 430 x 60 x 280mm
Simple instructions for use:
The SRC button on the panel: for input selection, it will automatically switch the input source every time you press it. There are 5 input sources in total, namely CD and USB(To connect to the computer), Coaxial 1, optical fiber 1, coaxial 2, optical fiber 2.
Panel Menu button: used to set the mode and brightness of the display screen. Mode is divided into Always On(The display is always on)And Auto-Off(Automatic dark screen), The brightness is divided into 3 levels. When setting, press the Play button to confirm the selection, the Stop button to exit, and the fast forward and backward buttons can move the cursor.
Remote control: The equipped remote control can control the whole series of Langquan products, so you must first press the CD before you can control the EVO50CD.
DIM key: adjust the brightness of the display
REPEAT button: Repeat playback mode. Press once to repeat the current track, press twice to repeat the entire disc, and press three times to resume normal playback.
RANDOM key: random play mode.
FILTER key: Provides 5 different digital filter modes for selection. There is no right or wrong, only subtle differences to satisfy different tastes.
Langquan EVO50A not only has RCA single-ended input, but also has a XLR balanced input. Traditionally, combined amplifiers in the UK have only RCA input, but this Longquan EVO 50A is obviously adapted to new needs. Of course, its internal structure cannot be a fully balanced structure, but the addition of balanced input will still affect some people. It is attractive and convenient to use. At the same time it also has a set of RCA pre-outputs. As a new generation of combined amplifier, it also comes with a remote control, which is convenient for users to operate.
Evo 50A is a new product of Langquan''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s integrated amplifier. It sounds like it still maintains the advantages of high-quality British integrated amplifiers, and at the same time adds new ideas in design and functions. Let me talk about the sound first. Its basic tone is neutral, delicate, and supple. It is not as warm and heavy as some old-school British models. It has a "new school" performance, removing the rich mid-frequency dyeing. , But the intermediate frequency is still contagious, whether it is vocals, strings, saxophones, woodwind instruments, they all perform very moving. This is mainly due to its soft, delicate mid-to-high frequency sound. The sound has no hard edges and is not too sharp, but maintains a very good flexibility, and can even be described as “Silky”. Very high frequency extension is not its strong point(This is almost always the case for British machines), But the frequency band that is most sensitive to the human ear, behaves very well.
Package content: One EVO50A amplifier, one power cord, one remote control, and one manual.
The combined amplifier product of the famous British fever brand Creek Langquan, with RCA and XLR balanced input, with headphone output(6.3mm), There is one RCA pre-stage output. This machine has been evaluated abroad and is an affordable amplifier product within 10,000 yuan. It is suitable for driving bookshelf speakers and small floor speakers with medium and high sensitivity. Technical Parameters
Output power: 55W/channel(8 ohm) 85W/channel(4 ohm)
Total harmonic distortion: 20Hz-20kHz: 0.005%
Signal to noise ratio: >102dB
Input terminal: 4 RCA inputs, 1 XLR balanced input
Input sensitivity: 410mV
Frequency response: (10Hz-100kHz) +/- 2dB
Dimensions (w x h x d): 43 x 6 x 28 cm
Net weight: 7.5 kg