Grandioso D1

DACs, Digital Source

0% Finance Available

This product has a 1 year warranty.

Finance Example

£3,000 initial 20% deposit then

£400 per month for 30 months

Other finance terms available

A monaural configuration for the ultimate evolutionary step toward the ideal stereo

The D1 follows the monaural configuration of the D-01, which Esoteric 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, Esoteric 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.

High sound quality through the separation of digital and analog circuits

All analog 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.

Large toroidal transformers boasting high speed and surplus power supply capacity

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

Analog audio output
Terminals XLR x 1
RCA x 1
Output impedance XLR 100Ω
Maximum output level XLR 5.0Vrms
(1 kHz, full scale, 10 k Ω) RCA 2.5Vrms
Frequency response 5Hz~55kHz(-3dB)
(when 192kHz PCM signal input)
Signal-to-noise ratio (S/N) 113dB
Total harmonic distortion 0.0007%(1kHz)
Digital audio input
ES-LINK terminal x 1
Input signal format 352.8 kHz / 384 kHz, 48bit
Linear PCM (ES-LINK4 format)
DSD (ES-LINK4 format)
XLR terminal x 1
Input level 5.0Vp-p
Input impedance 110Ω
Dual connection 32-384 kHz, 16-24 bit
Input signal format Linear PCM (DUAL AES format)
32-192 kHz, 48 bit
Linear PCM (ES-LINK3 format)
DSD (ES-LINK1, ES-LINK2 format)
Single connection 32-192 kHz, 16-24 bit
Input signal format Linear PCM (AES/EBU format)
DSD (ES-LINK1, ES-LINK2 format)
RCA terminal x 2
Input level 0.5Vp-p
Input impedance 75Ω
Input signal format 32-192 kHz, 16-24 bit
Linear PCM (IEC60958 format)
Optical digital terminal x 1
Input level -24.0 to -14.5 dBm peak
Input signal format 32-192 kHz, 16-24 bit
Linear PCM (IEC60958 format)
i.LINK (AUDIO) terminal x 2 (6-pin, 4-pin) S400
Input signal format 32-192 kHz, 16-24 bit, Linear PCM
USB port . B connector x 1
Input signal format 32-384 kHz, 16-32 bit, Linear PCM
2.8 MHz, 5.6 MHz, DSD
Clock output
Terminal BNC x 1
Output level equal to TTL level (into 75 Ω load)
Output frequency 44.1, 88.2, 176.4, 48, 96, 192 kHz,
22.5792, 24.576 MHz
same frequency as input (when output set to thru)
Output frequency precision ±0.5 ppm (when shipped new)
Clock input
Terminal BNC x 2(WORD IN, 10MHz IN)
Input impedance CLOCK IN 75Ω
10MHz IN 50Ω
Input frequency compatibility CLOCK IN 44.1, 88.2, 176.4, 48, 96, 192 kHz
22.5792, 24.576 MHz (±10 ppm)
10MHz IN 10 MHz (±10 ppm)
Input level CLOCK IN equal to TTL level
10MHz IN Sine wave: 0.5 to 1.0 Vrms
Power supply AC 230V 50Hz
AC 120V 60Hz
AC 220V 60Hz
Power consumption 14 W
External dimensions (W x H x D) 445 mm x 132 mm x 448 mm (17 1/2″ x 5 1/4″ x 17 5/8″)
(Including protrusions)
Weight 24 kg (53 lbs)
Accessories Remote control unit (RC-1156) x 1, Batteries (AA) x 2, HDMI cable x 1, Power cord set x 1, Felt pads x 4, Owner’s manual x 1, Warranty card x 1