Prism Sound Atlas 8-Channel Audio Interface with Digital Expansion Slot, 8 Mic Pres + MIDI

SKU: PSATLAS MFR: ATLAS
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Key Features

  • Capture pristine audio with the Prism Sound Atlas's eight high-quality mic preamps.
  • Achieve ultra-low latency for seamless recording and monitoring in your studio sessions.
  • Expand your sonic possibilities using the digital expansion slot for versatile connectivity.
  • Enjoy exceptional audio quality, perfect for critical listening and professional mixing tasks.
  • Easily integrate your MIDI devices with dedicated I/O for enhanced music production workflows.
  • Experience driver stability on both Mac and Windows, ensuring reliable performance every time.
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Special Order?Estimated to Ship: 08/19/2025
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Prism Sound Atlas Specifications

Front Panel

Front Panel

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  • Instrument Inputs

    2x 6.3mm mono jack sockets, auto-select to analogue inputs 1 & 2 when plugged

  • Headphone Outputs

    2x 6.3mm stereo TRS Jacks, each with illuminated volume control

  • Master volume

    Assignable encoder / push switch with halo indication

  • Standby button

    with standby indicator (also flashes when unit is in 'identify' mode)

  • Indication

    Level Meters: 10x multi-segment bargraphs with overload indication, 8 for analogue, 2 for digital, assignable to inputs or outputs
    Input selection: Indicate mode of analogue inputs 1-8 as Mic / line / inst with phantom power indication for mic mode
    Overkiller: For every analogue input, lit when Overkiller limiters are acting
    Digital Input: Indicators for digital input unlocked and SRC (sample-rate converter) selected

  • Indication (Contd.)

    Digital Output: Indicator for SRC (sample-rate converter) selected
    Sync: Master indicator, lit when interface is providing system sync

Rear Panel

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  • Mic / Line inputs

    8x combo connectors with XLR sockets for mic input and 6.3mm TRS jack sockets for line input (balanced or unbalanced)

  • Line outputs

    8x 6.3mm TRS jack sockets (balanced or unbalanced)

  • Digital inputs

    1x RCA 1x TOSLINK for S/PDIF or ADAT Optical input; (RCA can operate as AES3 input using XLR-RCA adapter supplied)

  • Digital output

    1x RCA 1x TOSLINK for S/PDIF or ADAT Optical output; (RCA can operate as AES3 output using XLR-RCA adapter supplied)

  • MIDI I/O

    2x 5 Pin DIN sockets (in and out)

  • Wordclock

    2x BNC sockets, output and input (75R)

  • USB port

    1x USB 2 port

  • MDIO Expansion Slot

    For alternative digital multi-channel I/O

  • Mains power

    3-pin 6A IEC inlet

Software Support

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  • Mac OS Support

    OS X 10.4 or later, Intel platform

  • Windows OS Support

    Windows Vista, 7 or 8, 32 or 64 bit

  • Mac audio driver

    Core Audio device

  • Windows audio driver

    ASIO device

  • Control Panel applet

    Graphical user interface for control of single or multiple Atlas units under Mac OS X or Windows

Analogue Line Inputs

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  • Configuration

    Electronically balanced, with fully-balanced analogue signal path

  • Input Sensitivity

    Switchable '+4dBu' (0dBFS = +18dBu) or '-10dBV' (0dBFS = +6dBu)

  • Input Impedance

    14.5k Ohm

  • Unbalanced Mode

    Automatic

  • Total harmonic distortion

    -117dB (0.00014%, -0.1dBFS)

  • THD+N

    -111dB (0.00028%, -0.1dBFS)

  • Dynamic Range

    116dB (-60dBFS)

  • Gain Accuracy

    +/-0.05dB

  • LF roll-off

    -0.05dB at 8Hz; -3dB at <1Hz

  • HF roll-off

    fs = 44.1kHz: -0.05dB at 21.1kHz; -3dB at 22.0kHz
    fs = 48kHz: -0.05dB at 23.0kHz; -3dB at 23.9kHz
    fs = 96kHz: -0.05dB at 32.0kHz; -3dB at 47.9kHz
    fs = 192kHz: -0.05dB at 32.0kHz; -3dB at 78kHz

  • CMRR

    20Hz..20kHz: >70dB

  • Inter-channel cross-talk

    1kHz: <140dB; 20Hz..20kHz: <-120dB

  • Inter-channel phase

    10Hz..5kHz: +/-0.25 Degree
    5kHz..20kHz: +/-1.0 Degree
    20kHz..50kHz: +/-2.0 Degree

  • Overkiller

    Progessive limiter, auto-aligning, selectable per channel

  • Impact Filter

    High-pass filter, -3dB at 80Hz, 40dB/decade (selectable for channels 1-4; whether in line, mic or instrument mode)

  • RIAA de-emphasis filter

    Response accuracy:
    +/-0.22dB at fs=44.1kHz
    +/-0.14dB at fs=48kHz
    +/-0.015dB at other sample rates

  • M-S matrix

    Allows direct connection of mid-side mics, or non-matrix mic-preamps (selectable for channels 1-4; whether in line or mic mode)

Microphone Preamplifiers

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  • Configuration

    Electronically balanced, with fully balanced analogue signal path

  • Gain

    10dB to 65dB in 1dB steps (0dBFS = -56dBu to -1dBu)

  • Gain accuracy

    +/-0.05dB

  • Input impedance

    5.5k Ohm

  • THD

    +10dB gain: -116dB at -0.1dBFS (0.00016%)
    +40dB gain: -110dB at -0.1dBFS (0.00032%)

  • THD+N

    +10dB gain: -108dB at -0.1dBFS (0.00040%)

  • Equivalent input noise (EIN)

    +30dB gain: -128.5dBu (0 Ohm source); -126.3dBu (150 Ohm source)
    +40dB gain: -130.9dBu (0 Ohm source); -127.6dBu (150 Ohm source)
    +50dB gain: -131.2dBu (0 Ohm source); -127.7dBu (150 Ohm source)
    +60dB gain: -131.4dBu (0 Ohm source); -127.8dBu (150 Ohm source)

  • LF roll-off

    -0.05dB at 20Hz, -3dB at 5Hz

  • HF roll-off

    As per analogue line input data (dependent on fs)

  • CMRR

    50Hz/60Hz: >110dB at all gains
    1kHz: >100dB at all gains
    20kHz: >90dB at all gains

  • Phantom power

    +48V, switchable per channel

  • Pad

    -20dB, switchable per channel

Instrument Preamplifiers

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  • Configuration

    Unbalanced, high impedance buffer

  • Gain

    10dB to 65dB in 1dB steps, 18dB pad (0dBFS = -38dBu to 17dBu)

  • Gain accuracy

    +/-0.05dB

  • Input impedance

    1M Ohm

Analogue Outputs

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  • Configuration

    Electronically balanced, with fully-balanced analogue signal path

  • Output amplitude

    Switchable '+4dBu' (0dBFS = +18dBu) or '-10dBV' (0dBFS = +6dBu)

  • Output impedance

    100 Ohm balanced, 50 Ohm unbalanced

  • Unbalanced mode

    Automatic, with bootstrapping level compensation

  • Total harmonic distortion

    -107dB (0.00045%, -1dBFS)

  • THD+N

    -106dB (0.00050%, -0.1dBFS)

  • Dynamic range

    115dB (-60dBFS)

  • Gain accuracy

    +/-0.05dB

  • LF roll-off

    -0.05dB at 8Hz, -3dB at <1Hz

  • HF roll-off

    fs = 44.1kHz: -0.05dB at 21.4kHz; -3dB at 22.0kHz
    fs = 48kHz: -0.05dB at 23.2kHz; -3dB at 23.9kHz
    fs = 96kHz: -0.05dB at 32.0kHz; -3dB at 47.8kHz
    fs = 192kHz: -0.05dB at 32.0kHz; -3dB at 76kHz

  • Output balance

    >50dB

  • Inter-channel cross-talk

    1kHz: <135dB; 20Hz..20kHz: <-120dB

  • Inter-channel phase

    10Hz..5kHz: +/-0.4 Degree
    5kHz..20kHz: +/-0.25 Degree
    20kHz..50kHz: +/-0.5 Degree

Digital Inputs

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  • Formats supported

    S/PDIF (RCA or TOSLINK), ADAT, ADAT S/MUX (TOSLINK)

  • Sample rates supported

    S/PDIF (2-channel): 44.1, 48, 88.2, 96, 176.4 and 192kHz
    ADAT (8-channel) 44.1 and 48kHz
    ADAT S/MUX (4-channel): 88.2 and 96kHz

  • Channel Status

    Ignored

  • Word-length

    24 bit

  • AES3 operation

    via S/PDIF RCA, using RCA-XLR adapter (supplied)

  • Sample-rate converter (SRC)

    Selectable at S/PDIF input; allowing input at any sample rate

  • Bit transparency

    Maintained (allows recording of Dolby or DTS streams)

Digital Outputs

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  • Formats supported

    S/PDIF (RCA or TOSLINK), ADAT, ADAT S/MUX (TOSLINK)

  • Sample rates supported

    S/PDIF (2-channel): 44.1, 48, 88.2, 96, 176.4 and 192kHz
    ADAT (8-channel) 44.1 and 48kHz
    ADAT S/MUX (4-channel): 88.2 and 96kHz

  • Channel Status

    Full implementation, Consumer (S/PDIF) or professional (AES3)

  • Word-length

    24 bit, or reduction to 16 bits using flat TPDF dither or Prism Sound SNS (Super Noise Shaping - four alternative shapes available)

  • AES3 operation

    via S/PDIF RCA, using RCA-XLR adapter (supplied)

  • Sample-rate converter (SRC)

    Selectable at S/PDIF output; output rate can be referenced to Wordclock, DI or local clock at 44.1, 48, 88.2, 96, 176.4 or 192kHz

  • Bit transparency

    Maintained in 24 bit mode (allows playback of Dolby or DTS streams to external decoder)

Synchronization

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  • System sample rates

    44.1 / 48 / 88.2 / 96 / 176.4 / 192kHz

  • Sync sources

    Master: local, Wordclock, DI (S/PDIF input) or ADAT
    Slave: bus master (another interface or Host computer)
    Local clock accuracy: +/-50ppm
    Jitter rejection: >60dB / decade above 100Hz

    Internal mixer delay (total analogue in to out)
    fs = 44.1kHz: 0.56ms
    fs = 48kHz: 0.52ms
    fs = 88.2kHz: 0.2ms
    fs = 96kHz: 0.18ms
    fs = 176.4kHz: 0.09ms
    fs = 192kHz: 0.08ms

Physical

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  • Form factor

    2U 19" rack mountable
    (rubber feet and rack ears supplied)

  • Power

    90-250VAC, 50/60Hz
    Internal power supply
    IEC 6A connector

  • Power consumption

    35W

  • Fuse rating

    0.5A(T), 20mm, ceramic

  • Operation ambient conditions

    32 to 95 Degree F (0 to 35 Degree C), 85% maximum relative humidity

  • Dimensions (W x D x H)

    Table top: 17.3 x 11.4 x 3.7" (440 x 290 x 95mm) (inc. feet)
    Rack-mount: 19 x 11.4 x 3.5" (483 x 290 x 88mm) (inc. optional ears)

  • Weight

    11 lbs (5kg)

  • UPC Code

    669014270863

About Prism Sound Atlas

When seeking a professional-grade audio interface that delivers unparalleled sound quality and flexible expansion options, the Atlas 8-Channel Audio Interface with Digital Expansion Slot stands out as a top contender. Engineered by Prism Sound, a brand synonymous with high-quality audio equipment, this interface is designed to cater to the most demanding audio professionals.

The Atlas interface is a reference-grade, expandable production tool that offers a world-class multi-track experience. It boasts the latest generation of Prism Sound's trusted conversion technology, ensuring that every recording captures the full depth and detail of the original sound. With eight high-quality mic preamps, the Atlas surpasses its sibling, the Titan, in terms of input capacity, making it an ideal choice for more complex recording setups.

Prism Sound's legacy in developing test and measurement equipment for the audio industry has led to an advanced understanding of digital clocking and jitter rejection. This expertise is embedded in the Atlas, guaranteeing precise timing and pristine audio quality.

The built-in digital mixer of the Atlas is a testament to its versatility. It can be configured to provide a range of ultra-low latency feeds, including foldback to performers and outputs for both stereo and surround sound setups. The mixer's flexibility ensures that audio monitoring and routing can be tailored to the specific needs of any session.

Each of the eight microphone preamps is designed to be ultra-clean and low-noise, complementing the transparent A/D conversion. These preamps are equipped with software-controllable phantom power, a -20dB pad, and Overkiller limiter switches, ensuring that the audio signal is pristine and free from unwanted distortion or clipping.

The Atlas is future-proofed with its standard USB connection, allowing seamless integration with a wide range of computers. Additionally, the option for ProTools HDX and Dante modules means that the Atlas can adapt to the most professional and demanding audio environments.

Prism Sound's MDIO expansion cards further enhance the Atlas's connectivity, offering alternative "host" connections beyond the standard USB port. For instance, the Pro Tools interface MDIO-PTHDX module allows for direct connection to AVID Pro Tools HDX or HD native systems, while the DANTE module enables networking with multiple Titan or Atlas units.

The Atlas Controller applet provides comprehensive control over the interface's settings. The applet's intuitive design allows for quick adjustments to global and unit-specific parameters, such as sync source, sample rate selection, and buffering modes. The applet also facilitates detailed configuration of inputs and outputs, including high-resolution metering, sensitivity selection, and the activation of the Overkiller soft limiter.

Verifile, Prism Sound's proprietary technology, offers an additional layer of quality assurance. This innovative feature allows for the rapid detection of clicks, errors, and dropouts within audio streams and recorded files, ensuring that the final product is flawless.

In summary, the Atlas 8-Channel Audio Interface with Digital Expansion Slot is a high-quality, professional, durable, innovative, and versatile solution for audio professionals seeking the best in conversion quality, flexible I/O options, and future-proof connectivity. With its robust feature set and Prism Sound's reputation for excellence, the Atlas is a sound investment for any serious audio recording or production environment.

Prism Sound Atlas Features

  • 2RU Class-Compliant USB 2.0 Interface
  • 8x XLR-1/4" Inputs with Phantom Power
  • Up to 24-Bit / 192kHz Resolution

Product Documents

User Manual

Key Features

  • Capture pristine audio with the Prism Sound Atlas's eight high-quality mic preamps.
  • Achieve ultra-low latency for seamless recording and monitoring in your studio sessions.
  • Expand your sonic possibilities using the digital expansion slot for versatile connectivity.
  • Enjoy exceptional audio quality, perfect for critical listening and professional mixing tasks.
  • Easily integrate your MIDI devices with dedicated I/O for enhanced music production workflows.
  • Experience driver stability on both Mac and Windows, ensuring reliable performance every time.

What's in the box:

  • 1x Prism Sound Atlas 8-Channel Audio Interface with Digital Expansion Slot
  • 1x IEC Mains Lead
  • 2x 19" Rackmount Ears
  • 1x Allen Key (for Rack Ears)
  • 1x USB Lead
  • 1x XLR-F to RCA-M Adapter (S/PDIF/AES3)
  • 1x XLR-M to RCA-M Adapter (S/PDIF/AES3)
  • 1x Printed Manual
  • 1x Software CD
  • Prism Sound 3 Year Limited Warranty