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HiFime 9018i i2S DAC

HiFime 9018i i2S DAC
Views: 39810 Brand: HiFime
Product Code: 10000134
Availability: In Stock
$99.00
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Hifime 9018i dac is a i2S dac with the ES9018k2M DAC chip used in IOUT mode with the Analog Devices OP275 Op-Amp.

The i2s signal is received using HDMI input, compatible with HDMI output from our UH-1 DAC or the USB to i2s (HDMI) device UH-1 Digital (note: it's not compatible with regular HDMI output from tv's etc).
It features 255 step lossless volume control (volume adjustments done by the DAC chip) and a display showing the sample rate and volume level.

The ES9018K2M DAC chip is the same we use in our 9018 and 9018D USB dac's. This DAC chip has great specs like 127dB DNR-120dB THD+N and patented Time Domain Jitter Eliminator.

Hifime 9018i uses the OP275 Op-Amp which is famous for is tube like sound, and is a great match to the great detailed output from the ES9018K2M Sabre chip. It is a line level output but it does also work with many headphones. The output is 2Vrms and 35mW from 32ohm.

This dac can play any i2s signal up to 384kHz and it can also play DSD format.
It requires an external power supply, 6 to 9VDC (not included)

255 steps volume control with MCU
This DAC utilises a ultra low power MCU chip to control the volume level output from the DAC chip, f
rom 0-127.5dB in 0.5dB steps.  Using a digital volume control this way will be better than an analog one unless you have a analog volume control that has a lower noise floor than the DAC itself. You would need a exceptionally low noise analog volume control to beat the Sabre chip impressive -127dB.
 

Display
The display shows the sample rate and the volume level.
The brightness  can be adjusted by pressing the left button while power on.

An explanation from Sabre chip makes ESS Technology:
http://www.esstech.com/PDF/digital-vs-analog-volume-control.pdf

The volume up/down buttons works in a fast responsive way, just push and hold, you don't have to keep pressing several times.

Filter adjustment

The ES9018K2M support selection of PCM filter frequency response. Chose between Fast and Slow roll-off. See this illustration (link).
Hold the right button while power on to select the roll-off.:
- Long press will set default (Fast roll-off) while a short press will set it to Slow roll-off

Specifications:

  • Accepts i2S inputs over HDMI, all sample rates up to 384kHz
  • Digital MCU controlled volume level
  • Audiophile Sabre ES9018K2M chip
  • ES9018K2M is configurerd in IOUT mode using Analog Devices OP275
  • THD: 0.0006%
  • Output power: 2Vrms, 35mW@32ohm 
  • Output impedance: 30 ohm
  • Power requirement: DC 6-9V, 200mA minimum
  • Dimensions: 90mm x 60mm x 13mm

model: hda18

on
5 ( 5 / 5 )
Exellent DAC the es9018k2m have very beautiful and dynamic sound coupled with xmos I2s usb interface. It can work with my K701 and my grado sr325i great ;) i don't use a additional headphone amp I have the first HiFimeDIY Es9023 TE7022 : the sound are not comparable !! Sorry for my bad English

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