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Esoteric C-02X Stereo Linestage Preamplifier

code: TEACC-02X
£16,500.00 (FREE UK Delivery)
Item out of Stock  |  Usually dispatched within 24 hours
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Representing the next generation in a proud lineage of audio excellence, the C-02X Stereo Linestage Preamplier features state-of-the-art circuitry in a discrete dual mono conguration that dramatically conveys all the power and energy of music. Assembled one at a time in Esoteric's Tokyo factory and incorporating all the knowledge and technology of the flagship Grandioso line, this new model accentuates the refined qualities of audio reproduction with expert craftsmanship and handmade precision.
 
The preamplifier is a crucial component that determines the 'sound' of an audio system, and represents the passion and commitment of its makers. As the crowning achievement of the Esoteric Sound, the Grandioso C1 opened new horizons for 'Made in Japan' preamplifiers. Now, this expressive power gives birth to the next-generation C-02X; a stereo preamplifier created to transcend the concept of high fidelity and resonate with the refined sensibilities of engineers and musicians alike.
The C-02X's DC power supply features a fully independent dual mono design that completely eliminates inter-channel interference. Its dedicated bank of five generously rated power transformers for each channel also blocks noise from the power line, enabling a pure, natural amplified sound. Grandioso technology reveals itself in such detailed refinements as the careful layout of the power supply circuit boards, which further contribute to the C-02X’s superb sound quality.
 
The preamplifier's source signal is first received by dedicated buffer amplifiers integrated with each input, from which the circuit configuration is balanced at each stage. Through the elimination of common-mode noise and reductions in circuit impedance, a pure, noise-free signal is fed to the gain amplifiers via the shortest path possible, for an exceptionally high signal-to-noise ratio.
 
The C-02X's Esoteric-QVCS volume control employs four precision switched resistor ladder networks, which change in unison as the volume knob is rotated. This arrangement allows the signal paths for the left and right channels and their positive and negative phases to be kept totally independent and as short as possible. Consequently the sound has superb clarity, excellent channel separation and highly accurate phase characteristics. The elimination of audio board wiring to the volume control further contributes to a reduced signal path, while preventing degradation of sound quality and helping to maintain the low distortion one would expect of a reference model.
 
Built into the front panel, the logic control section is totally isolated, both physically and electronically, from the preamplifier module by way of an optocoupler. To assure low-noise operation, it also shuts completely down when not in actual operation, thus eliminating all possible influence on the C-02X's audio circuitry.
 
Five independent high-capacity power transformers, coupled with large banks of reservoir capacitors, provide power supply circuits that have exceptionally low output impedances and very clean and stable outputs. The low-noise silicon carbide (SiC) Schottky barrier diodes used in the high-speed rectifier circuit further enhance resolution and the signal-to-noise ratio for significant improvements in sound quality.
 
As a line driver, the preamplifier must be able to fully drive the power amplifiers and faithfully convey the music signal's wide dynamic range. The key to achieving this is a circuit that provides both high current drive capability and high speed. The C-02X's output buffer circuitry delivers an exceptionally high current drive coupled with a high slew rate of 2,000V/μs for sharp response. Independent buffer circuits for each output and symmetrical circuitry for both the hot and cold phases of the XLR outputs maximize instantaneous output current capability.
 
Located closest to the output buffer circuitry, the EDLC Super Capacitor array, originally developed for the Grandioso C1, was adapted as a highly stable power source. Its compact physical size belies the extraordinary 100,000μF (0.1F) capacity it provides each channel, for high levels of instantaneous output power and strong, steady bass reproduction. Integrating these two technologies, the C-02X preserves musical dynamics that would otherwise be lost if smaller current transmission levels were employed between the pre and power amplifiers, allowing it to reproduce a breathtaking level of audio reality.
 
The C-02X's elegant volume and input selector knobs are machined from solid blocks of aluminum. Like the Grandioso C1, their control shafts use a VRDS drive mechanism bearing system for high-precision rotation, with no mechanical play in their movements. Rotational torque has also been fine-tuned to provide a luxurious analog control feel in keeping with this high-end preamplifier.
 
Other Important Features
  • Five preset volume curves permit selection of the most comfortable operating feel
  • Individual input gain adjustability helps minimize differences in source volumes (Range: ±18dB; 0.5dB steps)
  • Adjustable left and right channel volume balance control (Range: ±6dB; 0.5dB steps)
  • Selectable phase inversion can be individually set for each source
  • RCA2 terminals permit switching between normal line output and AV-through output for systems operated in both AV surround and pure two-channel modes
  • Remote controller features high-quality aluminum finish. Can also be used to operate any of Esoteric's superb line of SACD players
  • Source component name displays can be programmed using the remote controller
  • Also equipped with dimmer, mute, and auto-display-off functions
The C-02X's optimized chassis design features a 2-layer 5-cell configuration that houses each circuit block in its own compartment. This structure shortens the signal path to help minimize inter-circuit interference. The chassis' 5mm-thick steel bottom plate and thick aluminum exterior panels are supported at 4 points by Esoteric's own patented 'Pinpoint Feet', which enhance chassis rigidity while effectively suppressing resonant vibration.
 
Technical Specifications:
 
Analogue Audio Inputs
  • Connectors - RCA x 3 pairs (RCA 2 can be used as an AV pre-input) / XLR x 2 pairs
  • Input impedance - LINE : 10 kOhms
  • Input sensitvity - At rated output : 510 mV / At 800 mV output : 200 mV
  • Maximum input level - 12 V
Analogue Audio Outputs
  • Connectors - RCA x 2 pairs / XLR x 2 pairs
  • Output impedance - RCA: 47 Ohms / XLR: 100 Ohms
  • Maximum output level - 7.5 V (RCA output, 1kHz, 0.003%) / 15V (XLR output, 1kHz, 0.003%)
  • Frequency response - 1Hz – 200 kHz (-3 dB) / 3Hz – 50 kHz (-0.2 dB)
  • S/N ratio - 116 dB (2 V input, A-weight)
  • Total harmonic distortion - 0.0006% (RCA) / 0.0004% (XLR)
  • Gain - +12 dB
  • Rated output - 2 V
General
  • Power supply - AC 230V, 50Hz / AC 120V, 60Hz ; AC 220V, 60Hz
  • Power consumption - 21W
  • External dimensions (W x H x D, including protrusions) - 445 x 162 x 457 mm (17 5/8" x 6 1/2" x 18")
  • Weight - 32 kg ( 70 5/8 lb)
Included Accessories
  • Power cord × 1 / Remote control (RC-1315) × 1 / Batteries for remote control (AAA) × 2 / Felt pads × 4 / Owners manual × 1 / Warranty card × 1

We endeavour to despatch same day (for orders placed up to 2pm) on available stock items to the vast majority of UK mainland addresses. Please remember to check with us first for a physical stock check if next day delivery is important to you.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Free delivery also applies to the Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland but may take a day or so longer. Smaller items are delivered using Royal Mail recorded delivery or special delivery. Larger items are delivered using a courier service such as Interlink Express, DPD, UPS or DHL. 

INTERNATIONAL ORDERS: We offer competitive rates which can be confirmed by email. Please just ask – we will need a full delivery address and telephone number. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using DPD, DHL or UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties do not apply for shipments into any EU country (for a full list please refer to the EU Country List). Customs duties can apply for countries outside of the EU. Customers in these countries are responsible for all taxes and duties incurred when the items enter their country.

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