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Esoteric Grandioso D1 Mono Block D/A Converter

code: TEACGRANDIOSOD1
£15,000.00 (FREE UK Delivery)
Item out of Stock  |  Usually dispatched within 24 hours
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To create a moving, once-in-a-lifetime connection between music and a listener, the vitality of the music needs to be conveyed in its purest form, without stress. That is the ultimate mission of top-quality audio. ESOTERIC's P1 and D1 digital source systems combine remarkable new technologies such as ES-LINK4 and 36-bit D/A processing. It's easy to see why these new flagship models are called Grandioso, Italian for "magnificent" or "majestic".
ESOTERIC has developed an original, state-of-the-art transmission format called ES-LINK4, which allows DSD and 352.8kHz/48bit PCM ultrawideband digital transmission using an HDMI cable. ES-LINK4 performs a large part of the digital signal processing on the sending side, greatly reducing the digital signal processing load on the D/A converter. In addition to ultra-wide bandwidth, we sought high sound quality through our "Pure D/A" concept, in which the D/A converter specializes in its original function of D/A conversion processing.
 
The D1 applies a 36-bit D/A processing algorithm that converts PCM signals to analogue signals at a high resolution of 36 bits by combining several 32-bit DAC devices. The tone of the high-bit data is used for faithful analogue conversion. The resolution of 32-bit encoding is 256 times higher than that of 24-bit encoding, and 36-bit encoding gives an amazing resolution level that is another 16 times higher – a total of 4,096 times higher than the resolution of 24-bit encoding. Producing even finer bit tones minimizes operational error for outstanding expression of even subtle music signals.
 
The clock circuit, which supplies highly accurate reference clock signals to a digital circuit, can be considered the core unit of a digital player. The clock circuit of the D1 is completely independent of other circuits, including its power source and ground, enabling pure clock signals to be supplied to the system. The voltage controlled crystal oscillator (VCXO) was developed especially for the D1 in a joint effort with Nihon Dempa Kogyo (NDK), a major manufacturer of crystal oscillators. For a high-precision custom clock device worthy of leading models, high sound quality playback is provided thanks to an extremely low level of phase noise and a crystal element that is even larger than before.
 
The D1 follows the monaural configuration of the D-01, which we introduced in 2004 as the world’s first monaural D/A converter. The D-01 was developed with the goal of attaining the highest level of channel separation and the ideal power supply to each channel. In the new D1, we have introduced the latest technology and further enhanced the design. The right and left channels can now be link-connected with a single HDMI cable (provided), and easy input from external source devices is possible. With the D1, you can enjoy a world of incredible stereo with the rich stereo image and sonic depth that is only possible with a monaural configuration.
 
Aiming for the pinnacle of sound quality, we have incorporated the AK4495S, a state-of-the-art 32-bit DAC device developed by Asahi Kasei Microdevices Corporation. Sixteen circuits per channel are provided to achieve phenomenal linearity and low noise. In addition to direct processing of the DSD signal, a new 36-bit D/A processing algorithm has been adopted for analog conversion of the PCM signal at 36-bit resolution. The result is fine, smooth sound quality as along with high resolution.
 
A high-speed current transmission capability is the most important factor of an analog output circuit for transmitting a wide dynamic range of music signals downstream without deficiencies. For the ultimate performance as a line driver, the output buffer amplifier circuit of the D1 makes extensive use of materials and is configured with its own board separate from the D/A converter. The current output capability is high, and the high-performance elements adopted for the slew rate, which indicates response speed, boast the incredibly high speed of 2000V/μs. The ability to supply instant current is maximized with an extravagant buffer circuit configuration utilizing one circuit for RCA output and one circuit each for hot and cold connections for XLR output. With the ESOTERIC-HCLD, the D1 reproduces the dynamism of music with breathtaking reality.
 
All analogue circuits (DAC circuit analog portion, HCLD buffer circuit, etc.) are electrically separate from the digital circuits. This further enhances the clarity of sound quality by preventing the intrusion of digital noise.
 
Two large toroidal power supply units are installed for the digital and analog circuits, enabling high-efficiency and high-power drive operation in addition to low noise and low distortion. Stable and clean power is supplied to each circuit block by strong power supply circuits incorporating multiple large capacitors.
 
To enable connection to an extensive range of devices, the D1 is equipped with wide-ranging digital inputs of seven types and eight channels (ES-LINK x 1, XLR x 1, iLINK 4p/6p x 1, USB x 1, coaxial x 2, optical x 1), and can be used for high-sampling-rate sources of up to 24-bit/192kHz. In addition, XLR x 2 supports high-sampling-rate/high-bit inputs of 48-bit/192kHz (ES-LINK3) and 24-bit/384 kHz (Dual AES 8Fs).
 
Technical Specifications:
 
Digital Audio Input:
  • ES-LINK terminal - 1 system
  • Input signal format - Linear PCM (ES-LINK4 format) / 352.8KHz / 384 kHz 48 bits / DSD (ES-LINK4 format)
  • XLR terminal - 1 system
  • Input level - 5.0Vp-p
  • Input impedance - 110 Ohms
  • Input signal format DUAL connection - 32 ~ 384kHz, 16bit ~ 24bit / linear PCM (DUAL AES format) / 32 ~ 192 kHz 48 bits (ES-LINK3 format) / DSD (ES-LINK1, ES-LINK2 format)
  • Input signal format SINGLE connection - 32 ~ 192kHz, 16bit ~ 24bit / linear PCM (AES / EBU format) / DSD (ES-LINK1, ES-LINK2 format)
  • RCA jacks - Two lines
  • Input level - 0.5Vp-p
  • Input impedance - 75 Ohms
  • Input signal format - 32 ~ 192kHz, 16bit ~ 24bit / linear PCM (IEC60958 format)
  • Optical digital terminal - 1 system
  • Input level - -24.0 ~ -14.5dBm Peak
  • Input signal format - 32 ~ 192kHz, 16bit ~ 24bit / linear PCM (IEC60958 format)
  • i.LINK (AUDIO) terminal - (6-pin, 4-pin) S400 2 system
  • Input signal format - 32 ~ 192kHz, 16bit ~ 24bit / linear PCM / DSD
  • USB terminal - 1 system (B terminal)
  • Input signal format - Linear PCM 32 ~ 384 kHz, 16-bit 32-bit ~ / DSD 2.8MHz, 5.6 MHz
Clock Output
  • Terminal - BNC connector × 1
  • Output level - TTL level equivalent (75 Ohms load)
  • Output frequency - The same frequency as 44.1,88.2,176.4,48,96,192kHz, 22.5792,24.576MHz, and the input
  • (through output setting)
  • Output frequency accuracy - ± 0.5ppm (factory)
Clock Input:
  • Terminal - BNC terminal × 2 (WORD IN, 10MHz IN)
  • Input impedance - CLOCK IN: 75 Ohms / 10MHz IN: 50 Ohms
  • Input frequency - CLOCK IN: 44.1,88.2,176.4,48,96,192KHz & 22.5792,24.576MHz (± 10 ppm) / 10MHz IN: 10MHz (± 10ppm)
  • Input level - CLOCK IN: TTL level equivalent / 10MHz IN: 0.5 ~ 1.0Vrms sine wave
General:
  • Power supply - AC 230V, 50Hz ; AC 120V, 60Hz ; AC 220V, 60Hz
  • Power consumption - 14W
  • External dimensions (W x H x D, including protrusions) - 445mm x 132mm x 448mm (17 1/2″ x 5 1/4″ x 17 5/8″)
  • Weight - approx. 24kg (53 lbs)
Included Accessories:
  • Power cord set x 1 / HDMI cable x 1 / Sheets felt x 4 / Owner’s manual x 1 / Warranty card x 1

We endeavour to despatch same day for orders placed up to 2pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is recieved. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. 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 Turntableworld 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.

COLLECT IN STORE OR HOME INSTALL:At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock. 

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