Essence HDACC hi res HDMI

HDACC For Hi Res Audio

5.00 out of 5
(2 customer reviews)

$ 699.00

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Note: We ship to Europe and Asia from our warehouse in the Netherlands however orders for delivery outside the USA must be placed on this orderform.  We will send you a PayPal invoice by email with the true shipping cost from our Netherlands warehouse, not the USA.

SKU: HDACC. Category: .

Product Description

A Boxful of Digital Audio Ingenuity


The High Def Audio Control Center is an amazing digital-to-analog converter, but it’s much more than that. It’s also a versatile digital preamp with remote control and enough inputs to handle your analog and digital music sources: LP’s, tapes, disc players, network music players, and even your computer. What puts this DAC in a class by itself is it’s HDMI input, with analog output, so legacy analog audio systems can now play uncompressed Blu-ray soundtracks with all the dynamic range of the live performance, bit-for-bit identical to the original master recording.

The HDACC by Essence™ is the digital nerve center for modern audio systems, actually three products in one; a Digital Pre-amp with its own volume control, a 24/192K DAC for use with your legacy analog preamp or receiver, & the best Headphone Amp available today. It supports HDMI, USB 2, Optical, & Coaxial inputs + 2 Analog inputs with A To D Conversion for upsampling to 24/192K Hi Res, including Remote Control, and a crisp OLED Display that shows you the native data rate of the input source and the selectable upsample rates from 44.1K to 192K to choose from for the output.

Essence HDACC lo rez HDMI in

The HDACC Upsamples Low Res Music Files to High Res 24/192K FLAC lossless quality so you can play them on your main audio system at higher level.

The HDACC Upscales CDs, Albums, Tape,  Internet Radio, Sat Radio and Media Servers To Hi Res 24/192K FLAC lossless quality so everything you listen to will be hi res, even old low res music.  

Headphone Impedance Matching is user selectable between 16 and 600 ohms so you can play them with as much power as they require for optimum results.


HDACC hdmi and usb (2)HDMI v1.3 Input enables you to hear the original unprocessed, uncompressed LPCM 24 bit/192K 2 Channel soundtracks on Blu-ray. Listen to over 1000 concerts by the world’s greatest artists, new classics from audiophile labels, and catalog classics of the most famous albums in history, all bit-for-bit identical to the original master recordings. No Dolby or DTS post-processing required.

USB 2 input for your low res MP3 music files stored on a Smartphone, Tablet, or PC, bypassing your computer’s sound card for higher resolution sound with stored or streamed music files, DVDs, and all your favorite TV shows.

Coaxial iconCoaxial & Optical inputs for CD, DVD, or a Sonos® Connect player PLUS 2 Line-Level Analog Inputs with A To D conversion for up-scalingHDACC rear

If you’re a music lover with an older stereo preamp or a PrePro / AVR built before 2008, you’ve got a problem. Your music collection is spread out among your digital devices and you need a controller/DAC to plug them all into and make them sound their best on your analog system.

The HDACC by Essence™ is a versatile digital preamp with HDMI, USB, Optical, Coaxial, & Analog Line Inputs coupled to a 24/192K DAC with balanced XLRs and RCAs plus Headphone Amplifier with impedance matching to optimize the performance of any headphone. 

The HDACC by Essence is one of the most versatile, fully featured DACs I’ve seen” Brent Butterworth, Nov ’13

“In the context of its US $699 sticker price, the Essence HDACC impresses from the outset” John Darko, DAR Feb ’14

manual tab
HDMI Input mode: In this mode, whichever audio input is sel will be routed to the HDMI output as well as all other outputs.
HDMI Bypass mode: In this mode HDMI video and audio will always be routed to the HDMI output no matter what input is selected, while all other outputs will output the audio from the selected input. This function allows the user to have two di

HDMI, the HDMI Logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States & other Countries



Additional Information

Weight 3 lbs
Dimensions 5.5 x 8.5 x 1.75 in


Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu (unless noted):
SNR – A-Weighted, (0 dBFS = +20 to +29 dBu): 109 dB
SNR – Unweighted, (0 dBFS = +20 to +29 dBu): 107 dB
THD+N, 1 kHz at 0 dBFS: -85 dB, 0.005095%
THD+N, 1 kHz at –1 dBFS: -87 dB, 0.004849%
THD+N, 1 kHz at –3 dBFS: -89 dB, 0.004521%
THD+N, 20 to 20 kHz test tone at –3 dBFS: -89 dB, 0.004521%
Frequency Response at Fs=48 kHz: ±0.1 dB (20 to 20kHz)
±0.2 dB at 20 Hz
-0.2 dB at 20 kHz
Frequency Response at Fs=96 kHz: ±0.1 dB (20 to 20kHz)
-0.25 dB at 20 Hz
-0.2 dB at 20 kHz
Crosstalk -113 dB at 20 kHz
-118 dB at 1 kHz
-119 dB at 20 Hz
Interchannel Differential Phase (Stereo Pair): ±0.1 degrees at 1 kHz – any sample rate
Interchannel Differential Phase (Between DAC1 Units Fs<110): ±0.1 degrees at 1 kHz – Fs < 110 kHz
Interchannel Differential Phase (Between DAC1 Units Fs>110): ±0.1 degrees at 1 kHz – Fs > 110 kHz
Delay (Digital Input to Analog Output): 3.909 ms at 44.1 kHz
3.592 ms at 48 kHz
1.956 ms at 88.2 kHz
1.798 ms at 96 kHz
0.980 ms at 176.4 kHz
0.900 ms at 192 kHz
Mute on Receive Error: Yes
Mute on Lock Error: Yes
Mute on Idle Channel: No

Input Ports:

1×USB (Type B),
1×L/R (Analog Stereo 2RCA),
1×3.5mm mini analog L/R Phone Jack (L/R)

Output Ports:

1×Line L/R (Analog Stereo 2RCA),
1×XLR (Balanced Analog Stereo),
1×6.3mm Phone Jack (Headphone)
Digital Audio I/O Support: LPCM 2CH
Stereo Audio I/O Level: 2 Vrms ±0.2
XLR Blanced I/O Level: 4 Vrms ±0.2
Headphone Impedance: 16 Ω ~ 600 Ω
ESD Protection Human body model: ±8 kV (air-gap discharge)
±6 kV(contact discharge)

Power Supply: 100v-280v rated,5 V/3 A DC (US/EU standards, CE/FCC/UL certified)
Dimensions: 223mm (8.9″)W x 138mm (5.5″)D x 50mm (2″)H
Weight: 680 g, 1.8 lbs
Chassis Material: Aluminum
Power Consumption: 15 W

2 reviews for HDACC For Hi Res Audio

  1. :

    I come from the old-school of audio and have spent years configuring the best high-end audio system I could come up with. The speakers are Apogee Divas, the Amp is a Mark Levinson and the Pre-amp is a vacuum tube device of my own design. I had no interest of changing to a AV system with all of the AV formats that evolved as the technology was advancing.

    When I learned from Bob on a LinkedIn site about Blu-ray’s ability to play not only high-end video, but high-end uncompressed audio, I wanted to jump on the bandwagon. This would be as good, or better than the best analog open-reel tape recorder playing a master tape. Turns out it is the best audio source available to audiophiles.

    The first Blu-ray player I acquired has audio output connectors that provided a great audio 24/96 signal from its internal DAC. But I liked the idea of deriving the highest quality signal from a dedicated high-end DAC and the HD audio center seemed to have it all including a remote control with volume control capability which I did not have with my analog electronics. It turned better than my expectations and I have been playing Blu-ray music ever since.

    I recommend you read Bob’s articles which describes how this all works and how most audiophiles are not aware of the audio quality as most thing Blu-ray is for Video performance only. The HD Audio Center can provide a single-ended output or Balanced XLR outputs as well and requires no other Pre-amp to work into a high-end power amplifier. However, it can also be connected to an analog pre-amp as well. I tried both ways and preferred using my tube Pre-amp for two reasons. First the sound seemed a little warmer and musical to me thru my Pre-amp and I liked the idea of using the volume control on the analog Pre-amp as a limiter for the extreme dynamic range of the Blu-ray format.

    You need to be a little careful when you have the full dynamic range of a 24/96, uncompressed recording. But when played back at normal listening levels, say around 80 dB, the dynamic range will blow you away. This is a great product and I recommend it highly.

    By Gerald Pratt

  2. :

    Hi Bob,

    just a note to thank you for the info regarding the use of an HDMI de-embedder, I have now connected my Oppo 93 this way and, as you suggested, the overall sound quality and dynamic range is the best I have ever heard on my system. Chris Botti, for example, is really outstanding. I use a Bryston DAC, Audio Research LS27 pre, 4 Bel Canto 1000 mono-blocks and Dali Megalines with JL Audio subs so the differences are really felt and heard.

    Thanks again,
    Robin McConnell, So. Africa

  3. :

    Amol Akalkotka

    “After a lot of extensive listening yesterday with high quality lossless CD rips, I feel that the HDACC is a step up in terms of audio quality over the Matrix DAC….the Essence has wider imaging and overall a smoother sound. Having an HDMI input is a total win for me. I think you’ve definitely hit the nail on the head with this product. The headphone amplifier is superb.That particular OpAmp is designed for high impedance headphones like the ones I use and I was astonished to discover the new life the headphone amp in the HDDAC put into them. Thank you for making this wonderful product”

  4. 5 out of 5


    Hi Bob,

    I am very happy to see that someone is finally making affordable audiophile- quality equipment with HDMI input – Bravo!. Up until now, no one has taken this ubiquitous interface seriously other than for the transmission of i2S signals for whatever reason. I have been using an HDMI de-embedder to send BR quality music to my NAD M2 for some time now, but before that was sending those sigmas to my DAC.

    Meridian has been making a very expensive HDMI input unit for some time now, but the output is proprietary and therefore will not work with non-Meridian equipment. I commend your vision for recognizing the need for this product in the marketplace

    Jack Neber, NY Audiophile, Jan 31, 2014

  5. 5 out of 5


    I’m wanting to move from an vintage analog preamp to a DAC pre. The HDMI option not to mention analog input makes this super flexible. The Blu-Ray aspect is unique and something I know I’m going to love. Nice design!

    Bill McCormick, Audiophile consumer, SC

  6. :

    Are you considering buying a dac this year with usb 2, a headphone output, and preamp features? Before you buy think about this- are you going to watch movies on the system at least half the time? If you have a blu-ray player and you answered ‘yes’ there is only one choice: the Essence HDACC. On a budget? Do a search on netflix, or even better your local library, and see how much blu-ray content, both music and film is out there- it will surprise you.

    D Nash, Audiophile consumer

  7. :

    “This is a great piece of equipment by the way. It has every feature that I could think of having in a preamp and I wish you great success with it!”

    Hans Ruf, Audiophile consumer, Feb 2014

  8. :

    Success!! Received the HDACC last night, and got it set up and sorted….. and WHOA….. like a brand new …everything!

    Pretty amazing to hear the difference… a movie on the cable box let me hear the gravel being picked up by the tires on the screen… CD’s at 44.1 or WAV files at 48 were entirely new experiences… ripped movies, regular DVD’s….

    And then to top it off, the sample CD you were kind enough to include. That first track put shivers up my spine.

    Bob, thank you so much this thing is unbelievable. I can’t wait to keep trying new content, and to find a few blue ray audio discs (which are hard to find so far, but I’m on it) and put those through the paces.

    J. Kelly Moran, audiophile consumer
    Vancouver, Canada

  9. :

    I’m very pleased with my new HDACC. It’s quality is really ear-blowing!!

    Robert Fokken

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