Jeff Rowland Design Aeris DAC

Jeff Rowland Design Aeris DAC

$9,799.00 Free Shipping!

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Jeff Rowland Design Aeris DAC

$9,799.00 Free Shipping!

Free Shipping!
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  • Description

     

    MY TAKE:

    Striking beauty, stunning sound, rock solid reliability - a complete package. Few products offer the complete satisfaction and pride of ownership you’ll experience with the purchase of a Jeff Rowland component. – Galen Carol
     

    Aeris: Nexus of time and space;  dynamic gateway between digital and analogue worlds. HYBRID from Latin aerius – ‘air’ or ‘atmosphere,’ and late Latin aera – denoting an epoch from which time is reckoned.

    The Aeris DAC design is based upon an asynchronous buffer, voltage controlled crystal oscillators and a 24 bit D/A converter under the precise control of an FPGA running proprietary algorithms. It is the product of a close collaboration between Jeff Rowland Design Group and Holm Acoustics, a Danish company founded by Thomas Holm that specializes in signal processing products for high end audio applications. The Aeris is much more than the successful result of a synergistic collaboration between the two companies. The high degree of complementary synergy between the two teams working in parallel can only be defined as a case of true organic design.


    Watch the video showing the amazing process of machining Jeff Rowland chassis and front panels.

     

    FEATURES:
     

    • Isolated Synchronous System - Based upon an asynchronous buffer, voltage controlled crystal oscillators,  and a 24 bit D/A converter – all under the precise control of an FPGA (Field Programmable Gate Array) running proprietary algorithms.
    • Bit Perfect and Ultra Low Jitter on all Inputs - Bit perfect conversion with total jitter output noise of less than 10 picoseconds RMS from any input – USB, TOSLINK, and SPDIF.
    • Multi-Stage Isolated Power Supply - Main power supply is isolated inside an external machined aluminum chassis. Eleven precision high-speed regulators provide low impedance and  low noise “point of load” DC current to all analogue and digital circuits.
    • Isolated Audio and Digital Circuitry - Left and right channel audio output circuits, digital processing, and D/A conversion circuits are isolated within individual milled aluminum pockets resulting in exceptional EMI shielding, and thermal stabilization.
    • Volume Control - Wide range level control of outputs permit direct connection to power amplifiers.
    • Driver-Free Operation - The USB interface requires no additional drivers to install or maintain/update.
    • Cross-Platform - The USB interface is plug-n-play with all operating systems, including PC, Mac, or Linux.
    • Machined Aluminum Chassis - Precision-machined chassis milled from a solid block of aircraft grade 6061-T6 aluminum, provides exceptional thermal stability, RFI/EMI shielding, and resonance control.
    • 6-Layer Circuit Boards - Multi-layer circuit boards provide extremely low impedance ground and power distribution for remarkably low digital noise contamination.
    • High-Precision Surface Mount Components - Extensive use of Lead (Pb)-free, low temperature coefficient, active and passive surface-mount components results in significantly smaller loop areas, reduced circuit capacitance and inductance, and introduces less noise than conventional leaded components.
    • Transformer Coupled Outputs - Transformer balanced XLR line outputs provide outstanding output common-mode noise rejection, eliminate potential ground loops, and ensure compatibility with other equipment.
    • Output Connectors - Rhodium / Teflon Cardas output connectors for both balanced and unbalanced outputs preserve maximum audio signal integrity.
    • Remote Control - Allows remote control of volume, mute, standby, and input selection.

     

    REVIEWS:

    “The sheer naturalness of the Aeris’ musical interpretations makes a discussion of its rendering the highs and lows almost irrelevant – the Aeris just allows the music to flow effortlessly, and removes evidence of a mechanical device manipulating digital bits somewhere between its inputs and outputs.  First impressions are lasting, and initial impressions of other digital playback devices call attention to one or more areas of their musical presentations – some tend to emphasize the upper treble region, others a lucid midrange or forceful mid-bass, yet the Aeris seems to side-step this “shouting out” of its musical attributes.  Instead of highlighting particular aspects of the audio band, it seems to illuminate the entire frequency spectrum, making it easy to just sit back and bathe in the music.” - Art Tedeschi


    Every strand, every nuance is clearly displayed even while still providing detail-rich smoothness “and yes, musicality. In fact going back to my notes, I noticed in big capital letters the words written in messy haste whilst obviously relishing the tunes: “THIS DAC IS PURE MUSIC!” – 6 Moons


    What it does is take the strengths of record and tube systems, without the aberrations or nonlinearities (however cuddly or superficially attractive), and grafts them seamlessly to the best of digital. The resulting sound is highly competent and organized, but also exceptionally natural, expressive, engaging and simply downright enjoyable. The secret of the Aeris lies in its balance of virtues and the fact that those virtues are all in balance. There are no gaping holes in its musical fabric, each demand from the performers being met with equal grace and an unforced confidence that makes for rewarding long-term listening.


    “I spent considerable time running the Aeris directly into a pair of Rowland’s 725 monoblocks, with a range of speakers including the uber-critical KEF Blades. Throughout that time I didn’t play a single record, nor did I feel the need, which is perhaps the most telling fact of all. The Aeris has that happy knack of satisfying the listener -- and in the world of hi-fi, where each new unit in your system so often seems to quickly become just a stepping stone to the next "essential" upgrade, such satisfaction is not to be underestimated. To deliver such a musically rewarding performance in such an affordable, attractive and versatile package is a remarkable achievement.


    “But what will stay with me long after the Aeris has gone is the way it allowed me to simply put format anxiety firmly to one side. It stopped CD from being vinyl’s poor relation; it finally delivered on the promise of downloadable music; it put the performers and their performance firmly in the forefront of digital replay. In bringing its innate inner balance to the numerical juggling act of delivering digital music, it also brought balance to my system as a whole, allowing me to play more music more of the time, and perhaps that should be prized above all else.” – The Audio Beat


    “By now I am running out of ways to express how I feel about the Aeris DAC. It is not only the best DAC I have heard to date but also the most consistently well-performing one. No matter the placement, cables or source, the outcome is always superb. Also important to note is that while the Aeris does have the typical super-refined Rowland sound, it can also boogie with the best. This is a super-natural, highly civilised but supremely dynamic performer that I expect will work well in various setups. My feeling about the Aeris is best described as follows: “I must have it” – HiFi Advise
     

    “Despite exhaustive experimentation, I found that no combination of filters, DSD, or other inputs could duplicate the reality and extraordinary sense of stability so firmly solidified by the Aeris.
    Sure, a 10K DAC is not for everybody. The bel canto 2.5 I just reviewed is the kit for the frugal audiophile. Superb engineering with much of Jeff Rowland’s magic touch for 2K. But, for the ultimate in (refined and balanced) resolution, this carefully designed (two years on the bench) DAC is an easy choice for those flush audiophiles who want to get the best digital into their systems. Yeah, I’m going to say it. It’s a bargain at 10K. Audition one and let us know if you agree.”
    - Audiophilia


    SPECIFICATIONS:

    • Inputs: 1x USB — accepts up to 24 bit PCM at 44.1, 48, 88.2, and 96 kHz sample rates 1x Toslink — accepts up to 24 bit PCM from 11 - 192 kHz sample rates 2x SPDIF — accepts up to 24 bit PCM from 11 - 192 kHz sample rates
    • Outputs: 1 pair balanced XLR and 1 pair unbalanced RCA 7 volts RMS max output level
    • Volume Control: Dual-stage attenuation 70 dB range, plus 20 dB overdrive
    • Software/Drivers: No special drivers necessary USB interface is plug-n-play with all operating systems, including PC, Mac, or Linux.
    • Clocks (2X): 20 bit dynamic range Voltage Controlled Crystal Oscillators (VCXO) 44.1 kHz and 48 kHz    < 1 picosecond RMS jitter
    • D/A Converter: Differential output 352.8 kHz, 24 bit
    • Digital Filter: Finite Impulse Response (FIR) symmetrical Flat phase and group delay
    • THD+N: Analogue outputs < 0.0006%
    • Output Impedance: RCA / XLR 120 ohms

Product Ratings

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Jeff Rowland Design Aeris DAC

$9,799.00 Free Shipping!

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Description

 

MY TAKE:

Striking beauty, stunning sound, rock solid reliability - a complete package. Few products offer the complete satisfaction and pride of ownership you’ll experience with the purchase of a Jeff Rowland component. – Galen Carol
 

Aeris: Nexus of time and space;  dynamic gateway between digital and analogue worlds. HYBRID from Latin aerius – ‘air’ or ‘atmosphere,’ and late Latin aera – denoting an epoch from which time is reckoned.

The Aeris DAC design is based upon an asynchronous buffer, voltage controlled crystal oscillators and a 24 bit D/A converter under the precise control of an FPGA running proprietary algorithms. It is the product of a close collaboration between Jeff Rowland Design Group and Holm Acoustics, a Danish company founded by Thomas Holm that specializes in signal processing products for high end audio applications. The Aeris is much more than the successful result of a synergistic collaboration between the two companies. The high degree of complementary synergy between the two teams working in parallel can only be defined as a case of true organic design.


Watch the video showing the amazing process of machining Jeff Rowland chassis and front panels.

 

FEATURES:
 

  • Isolated Synchronous System - Based upon an asynchronous buffer, voltage controlled crystal oscillators,  and a 24 bit D/A converter – all under the precise control of an FPGA (Field Programmable Gate Array) running proprietary algorithms.
  • Bit Perfect and Ultra Low Jitter on all Inputs - Bit perfect conversion with total jitter output noise of less than 10 picoseconds RMS from any input – USB, TOSLINK, and SPDIF.
  • Multi-Stage Isolated Power Supply - Main power supply is isolated inside an external machined aluminum chassis. Eleven precision high-speed regulators provide low impedance and  low noise “point of load” DC current to all analogue and digital circuits.
  • Isolated Audio and Digital Circuitry - Left and right channel audio output circuits, digital processing, and D/A conversion circuits are isolated within individual milled aluminum pockets resulting in exceptional EMI shielding, and thermal stabilization.
  • Volume Control - Wide range level control of outputs permit direct connection to power amplifiers.
  • Driver-Free Operation - The USB interface requires no additional drivers to install or maintain/update.
  • Cross-Platform - The USB interface is plug-n-play with all operating systems, including PC, Mac, or Linux.
  • Machined Aluminum Chassis - Precision-machined chassis milled from a solid block of aircraft grade 6061-T6 aluminum, provides exceptional thermal stability, RFI/EMI shielding, and resonance control.
  • 6-Layer Circuit Boards - Multi-layer circuit boards provide extremely low impedance ground and power distribution for remarkably low digital noise contamination.
  • High-Precision Surface Mount Components - Extensive use of Lead (Pb)-free, low temperature coefficient, active and passive surface-mount components results in significantly smaller loop areas, reduced circuit capacitance and inductance, and introduces less noise than conventional leaded components.
  • Transformer Coupled Outputs - Transformer balanced XLR line outputs provide outstanding output common-mode noise rejection, eliminate potential ground loops, and ensure compatibility with other equipment.
  • Output Connectors - Rhodium / Teflon Cardas output connectors for both balanced and unbalanced outputs preserve maximum audio signal integrity.
  • Remote Control - Allows remote control of volume, mute, standby, and input selection.

 

REVIEWS:

“The sheer naturalness of the Aeris’ musical interpretations makes a discussion of its rendering the highs and lows almost irrelevant – the Aeris just allows the music to flow effortlessly, and removes evidence of a mechanical device manipulating digital bits somewhere between its inputs and outputs.  First impressions are lasting, and initial impressions of other digital playback devices call attention to one or more areas of their musical presentations – some tend to emphasize the upper treble region, others a lucid midrange or forceful mid-bass, yet the Aeris seems to side-step this “shouting out” of its musical attributes.  Instead of highlighting particular aspects of the audio band, it seems to illuminate the entire frequency spectrum, making it easy to just sit back and bathe in the music.” - Art Tedeschi


Every strand, every nuance is clearly displayed even while still providing detail-rich smoothness “and yes, musicality. In fact going back to my notes, I noticed in big capital letters the words written in messy haste whilst obviously relishing the tunes: “THIS DAC IS PURE MUSIC!” – 6 Moons


What it does is take the strengths of record and tube systems, without the aberrations or nonlinearities (however cuddly or superficially attractive), and grafts them seamlessly to the best of digital. The resulting sound is highly competent and organized, but also exceptionally natural, expressive, engaging and simply downright enjoyable. The secret of the Aeris lies in its balance of virtues and the fact that those virtues are all in balance. There are no gaping holes in its musical fabric, each demand from the performers being met with equal grace and an unforced confidence that makes for rewarding long-term listening.


“I spent considerable time running the Aeris directly into a pair of Rowland’s 725 monoblocks, with a range of speakers including the uber-critical KEF Blades. Throughout that time I didn’t play a single record, nor did I feel the need, which is perhaps the most telling fact of all. The Aeris has that happy knack of satisfying the listener -- and in the world of hi-fi, where each new unit in your system so often seems to quickly become just a stepping stone to the next "essential" upgrade, such satisfaction is not to be underestimated. To deliver such a musically rewarding performance in such an affordable, attractive and versatile package is a remarkable achievement.


“But what will stay with me long after the Aeris has gone is the way it allowed me to simply put format anxiety firmly to one side. It stopped CD from being vinyl’s poor relation; it finally delivered on the promise of downloadable music; it put the performers and their performance firmly in the forefront of digital replay. In bringing its innate inner balance to the numerical juggling act of delivering digital music, it also brought balance to my system as a whole, allowing me to play more music more of the time, and perhaps that should be prized above all else.” – The Audio Beat


“By now I am running out of ways to express how I feel about the Aeris DAC. It is not only the best DAC I have heard to date but also the most consistently well-performing one. No matter the placement, cables or source, the outcome is always superb. Also important to note is that while the Aeris does have the typical super-refined Rowland sound, it can also boogie with the best. This is a super-natural, highly civilised but supremely dynamic performer that I expect will work well in various setups. My feeling about the Aeris is best described as follows: “I must have it” – HiFi Advise
 

“Despite exhaustive experimentation, I found that no combination of filters, DSD, or other inputs could duplicate the reality and extraordinary sense of stability so firmly solidified by the Aeris.
Sure, a 10K DAC is not for everybody. The bel canto 2.5 I just reviewed is the kit for the frugal audiophile. Superb engineering with much of Jeff Rowland’s magic touch for 2K. But, for the ultimate in (refined and balanced) resolution, this carefully designed (two years on the bench) DAC is an easy choice for those flush audiophiles who want to get the best digital into their systems. Yeah, I’m going to say it. It’s a bargain at 10K. Audition one and let us know if you agree.”
- Audiophilia


SPECIFICATIONS:

  • Inputs: 1x USB — accepts up to 24 bit PCM at 44.1, 48, 88.2, and 96 kHz sample rates 1x Toslink — accepts up to 24 bit PCM from 11 - 192 kHz sample rates 2x SPDIF — accepts up to 24 bit PCM from 11 - 192 kHz sample rates
  • Outputs: 1 pair balanced XLR and 1 pair unbalanced RCA 7 volts RMS max output level
  • Volume Control: Dual-stage attenuation 70 dB range, plus 20 dB overdrive
  • Software/Drivers: No special drivers necessary USB interface is plug-n-play with all operating systems, including PC, Mac, or Linux.
  • Clocks (2X): 20 bit dynamic range Voltage Controlled Crystal Oscillators (VCXO) 44.1 kHz and 48 kHz    < 1 picosecond RMS jitter
  • D/A Converter: Differential output 352.8 kHz, 24 bit
  • Digital Filter: Finite Impulse Response (FIR) symmetrical Flat phase and group delay
  • THD+N: Analogue outputs < 0.0006%
  • Output Impedance: RCA / XLR 120 ohms