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SPL Diamond Desktop DAC and Preamplifier (Black)
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SPL Diamond Desktop DAC and Preamplifier (Black)

SPL Diamond Desktop DAC and Preamplifier (Black)

SPL Diamond Overview

  • 1Description
  • 2Everything Under Control
  • 3Six Stereo Sources
  • 4Always in Time
  • 5Well Informed
  • 6All Variable or Slave Thru
  • 7The DAC
  • 8The DLP120 (Dual Low-Pass)
  • 9Sounds Great
  • 10VOLTAiR: 120V Rail Technology

If you need top audio playback quality from your digital sources, look no further than the black Diamond from SPL, a premium DAC and preamplifier designed to handle digital audio from multiple types of sources and reproduce them with impeccable accuracy. With support for up to 32-bit / 782 kHz digital PCM and DSD250 audio decoding through the AKM AK4490 DAC and analog DLP120 dual low-pass filter chips, the Diamond can deliver the full sonic character of any digital source while also making sure no beat is out of step thanks to the ability to select between the clock from the digital signal or a dedicated BNC word clock input.

Flexible digital input options include AES XLR 3-pin, two S/PDIF RCA coaxial jacks, two optical TOSLINK S/PDIF jacks, and a USB-B port, which provides the highest sample rates, while balanced XLR and unbalanced RCA outputs are provided stereo analog connection to your speakers or mixer. The innovative onboard VOLTAiR technology and shielded toroidal transformer delivers superior rail voltage for the internal circuitry, ensuring that the Diamond provides the highest quality audio experience possible by vastly improving dynamic range, distortion, SNR, and maximum gain levels.

Everything Under Control
The volume is adjusted with a solid, milled aluminum, rotary knob. The Alps RK27 Big Blue potentiometer gives a pleasant spoon in the honey rotary feel.
Six Stereo Sources
Up to six digital stereo sources can be connected to the Diamond, making this DAC/preamp an ideal heart for any digital audio system. Diamond offers both a stereo USB and AES input as well as two optical and coaxial stereo inputs. The selected input is also shown in the dot matrix LED display.

Via USB, both PCM audio and DSD audio can be converted. PCM audio is received in S/PDIF format, both coaxial (RCA), optical (TOSLINK F06) and balanced (AES/EBU).

Always in Time
Diamond can not only synchronize to the clock integrated in the digitally fed source signal. As a specialty for digital players, Diamond offers a word clock input. The source of the clock signal can be selected via the clock switch.
Well Informed
The DAC automatically picks up the sampling rate and resolution of the digital playback source, regardless of whether a streamer, computer, CD player, or an external word clock is connected. The detected sampling rate and the selected clock source are shown in the dot matrix LED display. For example, U768 is an acronym for a clock signal in the USB stream with a sampling rate of 768 kHz.
All Variable or Slave Thru
Diamond provides two stereo output pairs for connecting power amplifiers or active loudspeakers. One pair of outputs utilizes XLR 3-pin connectors while the other uses RCA outputs. Both have the same output signal, which is controlled by the volume control on the front panel.

The volume control for the RCA outputs can be switched out of the signal path via DIP switch on the back of the device. For example, a headphone amplifier with its own volume control can be connected to one of the outputs.

The DAC
The highly acclaimed AKM AK4490 Velvet Sound premium DAC chip is used as the converter chip in the digital-to-analog converter, which thanks to its architecture reproduces the finest sound details. It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to resolution of DSD4 or DSD256.
The DLP120 (Dual Low-Pass)
Every signal that is passed from a DAC chip into the analog world must be filtered be filtered by a low-pass filter. Two of them are implemented in the DLP120: One for PCM audio and one for DSD audio, since different roll-off frequencies are required. In contrast to all other DACs in the world, the low-pass filters here are built using VOLTAiR technology, which provides a plus in dynamics, headroom, and sound.
Sounds Great
With all devices of the Professional Fidelity series, we develop not only according to plan, but also by ear. Many important components are installed on the circuit boards using Through-hole technology. This way, SPL can ensure that they use the best sounding components.
VOLTAiR: 120V Rail Technology
VOLTAiR is the synonym for SPL's 120V Rail Technology within the Professional Fidelity series. The audio signals are processed with an unequalled ±60V DC, which corresponds to twice that of discrete operational amplifiers and four-times that of semiconductor operational amplifiers.

VOLTAiR Technology reaches outstanding technical and sonic performances, especially in terms of dynamic range, headroom, and in reproducing the finest details and delivering a totally relaxed sounding audio experience. Music sounds absolutely natural.

In the Box

  • SPL Diamond Desktop DAC and Preamplifier (Black)
  • Limited 1-Year Manufacturer Warranty
    Table of Contents
    • Description
    • Everything Under Control
    • Six Stereo Sources
    • Always in Time
    • Well Informed
    • All Variable or Slave Thru
    • The DAC
    • The DLP120 (Dual Low-Pass)
    • Sounds Great
    • VOLTAiR: 120V Rail Technology

    SPL Diamond Specs

    Key Specs
    Digital Audio I/O
    1x XLR 3-Pin AES3 Input
    2x RCA Coaxial S/PDIF Input
    2x TOSLINK Optical S/PDIF Input
    Frequency Response
    10 Hz to 300 kHz
    Power Requirements
    AC Input
    Connectivity
    Digital Audio I/O
    1x XLR 3-Pin AES3 Input
    2x RCA Coaxial S/PDIF Input
    2x TOSLINK Optical S/PDIF Input
    Performance
    Frequency Response
    10 Hz to 300 kHz
    Maximum Output Level
    32.5 dBu
    Dynamic Range
    135 dB
    Impedance
    75 Ohms
    THD+N
    0.001001% (0 dBu, at 10 Hz to 22 kHz)
    Crosstalk
    -108 dBu (A-Weighted)
    Digital Audio
    Sample Rates
    TOSLINK Optical S/PDIF Inputs:
    44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
    RCA Coaxial S/PDIF Inputs:
    44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
    XLR AES3 Input:
    44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
    44.1 / 48 / 88.2 / 96 / 176.4 / 192 / 352.8 / 384 / 705.6 / 768 kHz (PCM)
    2.8 / 5.6 / 11.2 kHz (DSD)
    Compatibility
    Mobile App Compatible
    No
    Mobile Device Compatibility
    No
    Power
    Power Requirements
    AC Input
    AC Input Power
    User Selectable:
    115 to 230 VAC, 50 / 60 Hz (T 1 A)
    AC/DC Power Adapter
    No
    Power Consumption
    40 VA (Maximum)
    Physical
    Dimensions
    118.1 x 109.4 x 22.4" / 300 x 278 x 57 cm
    Weight
    6.9 lb / 3.1 kg
    Packaging Info
    Package Weight
    9.53 lb
    Box Dimensions (LxWxH)
    21.5 x 14.7 x 5.2"

    All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
    $5,683.67
    SPL Diamond Desktop DAC and Preamplifier (Black)—
    $5,683.67

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    SPL Diamond Desktop DAC and Preamplifier (Black) - Image 2
    SPL Diamond Desktop DAC and Preamplifier (Black) - Image 3

    SPL Diamond Desktop DAC and Preamplifier (Black)

    SPL Diamond Overview

    • 1Description
    • 2Everything Under Control
    • 3Six Stereo Sources
    • 4Always in Time
    • 5Well Informed
    • 6All Variable or Slave Thru
    • 7The DAC
    • 8The DLP120 (Dual Low-Pass)
    • 9Sounds Great
    • 10VOLTAiR: 120V Rail Technology

    If you need top audio playback quality from your digital sources, look no further than the black Diamond from SPL, a premium DAC and preamplifier designed to handle digital audio from multiple types of sources and reproduce them with impeccable accuracy. With support for up to 32-bit / 782 kHz digital PCM and DSD250 audio decoding through the AKM AK4490 DAC and analog DLP120 dual low-pass filter chips, the Diamond can deliver the full sonic character of any digital source while also making sure no beat is out of step thanks to the ability to select between the clock from the digital signal or a dedicated BNC word clock input.

    Flexible digital input options include AES XLR 3-pin, two S/PDIF RCA coaxial jacks, two optical TOSLINK S/PDIF jacks, and a USB-B port, which provides the highest sample rates, while balanced XLR and unbalanced RCA outputs are provided stereo analog connection to your speakers or mixer. The innovative onboard VOLTAiR technology and shielded toroidal transformer delivers superior rail voltage for the internal circuitry, ensuring that the Diamond provides the highest quality audio experience possible by vastly improving dynamic range, distortion, SNR, and maximum gain levels.

    Everything Under Control
    The volume is adjusted with a solid, milled aluminum, rotary knob. The Alps RK27 Big Blue potentiometer gives a pleasant spoon in the honey rotary feel.
    Six Stereo Sources
    Up to six digital stereo sources can be connected to the Diamond, making this DAC/preamp an ideal heart for any digital audio system. Diamond offers both a stereo USB and AES input as well as two optical and coaxial stereo inputs. The selected input is also shown in the dot matrix LED display.

    Via USB, both PCM audio and DSD audio can be converted. PCM audio is received in S/PDIF format, both coaxial (RCA), optical (TOSLINK F06) and balanced (AES/EBU).

    Always in Time
    Diamond can not only synchronize to the clock integrated in the digitally fed source signal. As a specialty for digital players, Diamond offers a word clock input. The source of the clock signal can be selected via the clock switch.
    Well Informed
    The DAC automatically picks up the sampling rate and resolution of the digital playback source, regardless of whether a streamer, computer, CD player, or an external word clock is connected. The detected sampling rate and the selected clock source are shown in the dot matrix LED display. For example, U768 is an acronym for a clock signal in the USB stream with a sampling rate of 768 kHz.
    All Variable or Slave Thru
    Diamond provides two stereo output pairs for connecting power amplifiers or active loudspeakers. One pair of outputs utilizes XLR 3-pin connectors while the other uses RCA outputs. Both have the same output signal, which is controlled by the volume control on the front panel.

    The volume control for the RCA outputs can be switched out of the signal path via DIP switch on the back of the device. For example, a headphone amplifier with its own volume control can be connected to one of the outputs.

    The DAC
    The highly acclaimed AKM AK4490 Velvet Sound premium DAC chip is used as the converter chip in the digital-to-analog converter, which thanks to its architecture reproduces the finest sound details. It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to resolution of DSD4 or DSD256.
    The DLP120 (Dual Low-Pass)
    Every signal that is passed from a DAC chip into the analog world must be filtered be filtered by a low-pass filter. Two of them are implemented in the DLP120: One for PCM audio and one for DSD audio, since different roll-off frequencies are required. In contrast to all other DACs in the world, the low-pass filters here are built using VOLTAiR technology, which provides a plus in dynamics, headroom, and sound.
    Sounds Great
    With all devices of the Professional Fidelity series, we develop not only according to plan, but also by ear. Many important components are installed on the circuit boards using Through-hole technology. This way, SPL can ensure that they use the best sounding components.
    VOLTAiR: 120V Rail Technology
    VOLTAiR is the synonym for SPL's 120V Rail Technology within the Professional Fidelity series. The audio signals are processed with an unequalled ±60V DC, which corresponds to twice that of discrete operational amplifiers and four-times that of semiconductor operational amplifiers.

    VOLTAiR Technology reaches outstanding technical and sonic performances, especially in terms of dynamic range, headroom, and in reproducing the finest details and delivering a totally relaxed sounding audio experience. Music sounds absolutely natural.

    In the Box

    • SPL Diamond Desktop DAC and Preamplifier (Black)
    • Limited 1-Year Manufacturer Warranty
      Table of Contents
      • Description
      • Everything Under Control
      • Six Stereo Sources
      • Always in Time
      • Well Informed
      • All Variable or Slave Thru
      • The DAC
      • The DLP120 (Dual Low-Pass)
      • Sounds Great
      • VOLTAiR: 120V Rail Technology

      SPL Diamond Specs

      Key Specs
      Digital Audio I/O
      1x XLR 3-Pin AES3 Input
      2x RCA Coaxial S/PDIF Input
      2x TOSLINK Optical S/PDIF Input
      Frequency Response
      10 Hz to 300 kHz
      Power Requirements
      AC Input
      Connectivity
      Digital Audio I/O
      1x XLR 3-Pin AES3 Input
      2x RCA Coaxial S/PDIF Input
      2x TOSLINK Optical S/PDIF Input
      Performance
      Frequency Response
      10 Hz to 300 kHz
      Maximum Output Level
      32.5 dBu
      Dynamic Range
      135 dB
      Impedance
      75 Ohms
      THD+N
      0.001001% (0 dBu, at 10 Hz to 22 kHz)
      Crosstalk
      -108 dBu (A-Weighted)
      Digital Audio
      Sample Rates
      TOSLINK Optical S/PDIF Inputs:
      44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
      RCA Coaxial S/PDIF Inputs:
      44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
      XLR AES3 Input:
      44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
      44.1 / 48 / 88.2 / 96 / 176.4 / 192 / 352.8 / 384 / 705.6 / 768 kHz (PCM)
      2.8 / 5.6 / 11.2 kHz (DSD)
      Compatibility
      Mobile App Compatible
      No
      Mobile Device Compatibility
      No
      Power
      Power Requirements
      AC Input
      AC Input Power
      User Selectable:
      115 to 230 VAC, 50 / 60 Hz (T 1 A)
      AC/DC Power Adapter
      No
      Power Consumption
      40 VA (Maximum)
      Physical
      Dimensions
      118.1 x 109.4 x 22.4" / 300 x 278 x 57 cm
      Weight
      6.9 lb / 3.1 kg
      Packaging Info
      Package Weight
      9.53 lb
      Box Dimensions (LxWxH)
      21.5 x 14.7 x 5.2"

      All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

      Product Information

      Shipping & Returns

      Description

      SPL Diamond Overview

      • 1Description
      • 2Everything Under Control
      • 3Six Stereo Sources
      • 4Always in Time
      • 5Well Informed
      • 6All Variable or Slave Thru
      • 7The DAC
      • 8The DLP120 (Dual Low-Pass)
      • 9Sounds Great
      • 10VOLTAiR: 120V Rail Technology

      If you need top audio playback quality from your digital sources, look no further than the black Diamond from SPL, a premium DAC and preamplifier designed to handle digital audio from multiple types of sources and reproduce them with impeccable accuracy. With support for up to 32-bit / 782 kHz digital PCM and DSD250 audio decoding through the AKM AK4490 DAC and analog DLP120 dual low-pass filter chips, the Diamond can deliver the full sonic character of any digital source while also making sure no beat is out of step thanks to the ability to select between the clock from the digital signal or a dedicated BNC word clock input.

      Flexible digital input options include AES XLR 3-pin, two S/PDIF RCA coaxial jacks, two optical TOSLINK S/PDIF jacks, and a USB-B port, which provides the highest sample rates, while balanced XLR and unbalanced RCA outputs are provided stereo analog connection to your speakers or mixer. The innovative onboard VOLTAiR technology and shielded toroidal transformer delivers superior rail voltage for the internal circuitry, ensuring that the Diamond provides the highest quality audio experience possible by vastly improving dynamic range, distortion, SNR, and maximum gain levels.

      Everything Under Control
      The volume is adjusted with a solid, milled aluminum, rotary knob. The Alps RK27 Big Blue potentiometer gives a pleasant spoon in the honey rotary feel.
      Six Stereo Sources
      Up to six digital stereo sources can be connected to the Diamond, making this DAC/preamp an ideal heart for any digital audio system. Diamond offers both a stereo USB and AES input as well as two optical and coaxial stereo inputs. The selected input is also shown in the dot matrix LED display.

      Via USB, both PCM audio and DSD audio can be converted. PCM audio is received in S/PDIF format, both coaxial (RCA), optical (TOSLINK F06) and balanced (AES/EBU).

      Always in Time
      Diamond can not only synchronize to the clock integrated in the digitally fed source signal. As a specialty for digital players, Diamond offers a word clock input. The source of the clock signal can be selected via the clock switch.
      Well Informed
      The DAC automatically picks up the sampling rate and resolution of the digital playback source, regardless of whether a streamer, computer, CD player, or an external word clock is connected. The detected sampling rate and the selected clock source are shown in the dot matrix LED display. For example, U768 is an acronym for a clock signal in the USB stream with a sampling rate of 768 kHz.
      All Variable or Slave Thru
      Diamond provides two stereo output pairs for connecting power amplifiers or active loudspeakers. One pair of outputs utilizes XLR 3-pin connectors while the other uses RCA outputs. Both have the same output signal, which is controlled by the volume control on the front panel.

      The volume control for the RCA outputs can be switched out of the signal path via DIP switch on the back of the device. For example, a headphone amplifier with its own volume control can be connected to one of the outputs.

      The DAC
      The highly acclaimed AKM AK4490 Velvet Sound premium DAC chip is used as the converter chip in the digital-to-analog converter, which thanks to its architecture reproduces the finest sound details. It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to resolution of DSD4 or DSD256.
      The DLP120 (Dual Low-Pass)
      Every signal that is passed from a DAC chip into the analog world must be filtered be filtered by a low-pass filter. Two of them are implemented in the DLP120: One for PCM audio and one for DSD audio, since different roll-off frequencies are required. In contrast to all other DACs in the world, the low-pass filters here are built using VOLTAiR technology, which provides a plus in dynamics, headroom, and sound.
      Sounds Great
      With all devices of the Professional Fidelity series, we develop not only according to plan, but also by ear. Many important components are installed on the circuit boards using Through-hole technology. This way, SPL can ensure that they use the best sounding components.
      VOLTAiR: 120V Rail Technology
      VOLTAiR is the synonym for SPL's 120V Rail Technology within the Professional Fidelity series. The audio signals are processed with an unequalled ±60V DC, which corresponds to twice that of discrete operational amplifiers and four-times that of semiconductor operational amplifiers.

      VOLTAiR Technology reaches outstanding technical and sonic performances, especially in terms of dynamic range, headroom, and in reproducing the finest details and delivering a totally relaxed sounding audio experience. Music sounds absolutely natural.

      In the Box

      • SPL Diamond Desktop DAC and Preamplifier (Black)
      • Limited 1-Year Manufacturer Warranty
        Table of Contents
        • Description
        • Everything Under Control
        • Six Stereo Sources
        • Always in Time
        • Well Informed
        • All Variable or Slave Thru
        • The DAC
        • The DLP120 (Dual Low-Pass)
        • Sounds Great
        • VOLTAiR: 120V Rail Technology

        SPL Diamond Specs

        Key Specs
        Digital Audio I/O
        1x XLR 3-Pin AES3 Input
        2x RCA Coaxial S/PDIF Input
        2x TOSLINK Optical S/PDIF Input
        Frequency Response
        10 Hz to 300 kHz
        Power Requirements
        AC Input
        Connectivity
        Digital Audio I/O
        1x XLR 3-Pin AES3 Input
        2x RCA Coaxial S/PDIF Input
        2x TOSLINK Optical S/PDIF Input
        Performance
        Frequency Response
        10 Hz to 300 kHz
        Maximum Output Level
        32.5 dBu
        Dynamic Range
        135 dB
        Impedance
        75 Ohms
        THD+N
        0.001001% (0 dBu, at 10 Hz to 22 kHz)
        Crosstalk
        -108 dBu (A-Weighted)
        Digital Audio
        Sample Rates
        TOSLINK Optical S/PDIF Inputs:
        44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
        RCA Coaxial S/PDIF Inputs:
        44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
        XLR AES3 Input:
        44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz (PCM)
        44.1 / 48 / 88.2 / 96 / 176.4 / 192 / 352.8 / 384 / 705.6 / 768 kHz (PCM)
        2.8 / 5.6 / 11.2 kHz (DSD)
        Compatibility
        Mobile App Compatible
        No
        Mobile Device Compatibility
        No
        Power
        Power Requirements
        AC Input
        AC Input Power
        User Selectable:
        115 to 230 VAC, 50 / 60 Hz (T 1 A)
        AC/DC Power Adapter
        No
        Power Consumption
        40 VA (Maximum)
        Physical
        Dimensions
        118.1 x 109.4 x 22.4" / 300 x 278 x 57 cm
        Weight
        6.9 lb / 3.1 kg
        Packaging Info
        Package Weight
        9.53 lb
        Box Dimensions (LxWxH)
        21.5 x 14.7 x 5.2"

        All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
        SPL Diamond Desktop DAC and Preamplifier (Black) | Tanotis