SKU: 46189762424

SPL Diamond DAC Digital to Analog Converter and Preamplifier

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Description

SPL Diamond DAC Digital to Analog Converter and PreamplifierSPL products are currently ordered on demand with an approx 2 week lead time. Diamond PREMIUM DAC WITH VOLTAIR TECHNOLOGY. Diamond is the perfect DAC and preamplifier for everyone who plays music exclusively from digital sources. Diamond offers connectivity for six digital sources and an external word clock. The superior VOLTAiR technology and the premium DAC with the unequalled DLP120 combined with an analog volume control allowing for highest

SPL products are currently ordered on demand with an approx 2 week lead time.

Diamond

PREMIUM DAC WITH VOLTAIR TECHNOLOGY.

Diamond is the perfect DAC and preamplifier for everyone who plays music exclusively from digital sources. Diamond offers connectivity for six digital sources and an external word clock. The superior VOLTAiR technology and the premium DAC with the unequalled DLP120 combined with an analog volume control allowing for highest resolution at any volume makes the Diamond an one-of-a-kind DA converter that delivers finest soundstages with an unrivalled analog feel.

Reviews

“Richness of sound, flawless performance and dynamics are also included – together with a features set that should leave hardly any wishes unfulfilled: an almost irresistible offer.”

Hifistatement
Klaus Schrätz

“Diamond scores with HiRes capability up to PCM 768 and DSD256. Thanks to its VOLTAiR technology, it operates with extremely low noise and distortion as well as rich in dynamics and with high resolution.”

lite-Magazin
Volker Frech

“Music lovers who exclusively use digital sources and are looking for a DAC/preamplifier that is as easy-to-use as it is versatile and, above all, has a powerful sound, have come to exactly the right place with the new SPL Diamond.”

Lowbeats
Frank Borowski

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.

Source of joy

Up to 6 digital stereo sources can be connected to Diamond.

Diamond offers each a stereo USB and AES input as well as each two optical and coaxial stereo inputs. 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).

The source selection is done via the selection control on the front. The selected input is also shown in the dot matrix LED display: USB, COA1, COA2, OPT1, OPT2 or AES.

After approximately two seconds, the display shows the type of clock source and the detected sampling rate.

Always in time

Diamond can not only synchronize to the clock integrated in the digitally fed source signal. As a specialist for digital players Diamond offers a word clock input. The source of the clock signal can be selected via the CLOCK switch.

Source = Diamond synchronizes to the digital clock in the source signal.
Word = Diamond synchronizes to the digital clock present at WORD IN.

Well informed

The DAC automatically picks up the sampling rate and resolution of the digital playback source. No matter if 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 asampling rate of 768 kHz.

SPL Diamond – Premium DAC with VOLTAiR technology

 

 

All variable – or Slave Thru

Diamond provides two stereo output pairs for connecting power amplifiers or active loudspeakers. One pair of outputs with XLR, the other with RCA outputs. Both have the same output signal, which is controlled by the volume control on the front panel.

The volume control for both outputs can be individually 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 DAC768

The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the digital-to-analogue 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 a resolution of DSD4 or DSD256. In contrast to the DAC 768xs, the DAC768 not only offers an AES/EBU digital input, but also the SPL DLP120 with VOLTAiR technology.

The DLP120 (Dual Low-Pass)

The analog output of the DAC chip must be filtered by a low pass filter. Phonitor xe has two of them: 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 and headroom and sound.

Sounds good

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 we can ensure that we can use the best sounding components.

lite magazin – SPL Diamond

 

 

The VOLTAiR Technology

The 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In our Professional Fidelity series, we refer to this unsurpassed technology as VOLTAiR technology.


The highest possible audio quality requires the highest possible audio operating voltage.

The 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers. This high voltage would destroy conventional components and operational amplifiers.

The 120V technology achieves exceptional technical specifications and sonic benefits. Technically, in terms of dynamic range, signal-to-noise ratio and headroom. Sonically, in terms of richness of detail and an absolutely relaxed listening experience.

By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.

The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.

Specifications

Analog Inputs & Outputs: XLR (balanced), RCA

  • Maximum output level: 32.5 dBu
  • Output impedance: 75 Ω
  • Frequenzgang (-3 dB): 10 Hz " 300 kHz
  • Crosstalk (1 kHz): -108 dBu
  • THD & N (0 dBu, 10 Hz " 22 kHz): 0.001001 %
  • Noise (A-weighted): -102.3 dBu
  • Dynamic range: 135 dB

Digital Inputs, DAC768

  • AES/EBU (XLR), PCM sample rates:
    44.1/48/88.2/96/176.4/192 kHz
  • Coaxial SPDIF (RCA), PCM sample rates: 44.1/48/88.2/96/176.4/192 kHz
  • Optical SPDIF (Toslink F 06), PCM sample rates: 44.1/48/88.2/96/ with Glass fibre <1m 176.4/192 kHz
  • USB (B), PCM sample rates: 44.1/48/88.2/96/176.4/192/352.8/384/705.6/768 kHz
  • USB (B), DSD over PCM (DoP), sample rates: 2.8 (DSD64), 5.6 (DSD128), 11.2 (DSD256) MHz

Internal Linear Power Supply with Shielded Toroidal Transformer

  • Operating voltage for analog audio: +/- 60 V
  • Operating voltage for relays and LEDs: + 12 V

Mains Power Supply

  • Mains voltage (selectable, see fuse chamber): 230 V AC / 50; 115 V AC / 60 Hz
  • Fuse for 230 V: T 500 mA
  • Fuse for 115 V: T 1 A
  • Power consumption: max. 40 VA
  • Stand-by power consumption: < 0,3 W

Dimensions & Weight

  • W x H x T (Weite x Höhe inkl. Füße x Tiefe): 278 x 57 x 300 mm, 11 x 2.24 x 11.81 inch
  • Unit weight: 3.15 kg, 6.95 lbs
  • Shipping weight (incl. packaging): 5.35 kg, 11.79 lbs
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 46189762424

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    4.7 ★★★★★
    Based on 12 reviews
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    Product Reviews
    S
    StarReviewer
    Draper, US
    ★★★★★ 1
    May be ballistic nylon, but the seams are flimsy.
    Style: Gator, Style: Gator
    I really wanted my pup to like this toy because it looks great and feels solid at first. The design is fun, the material seems tough, and it definitely gives the impression that it can handle some rough play. Unfortunately, that didn’t turn out to be the case at all. After just about 5 minutes of play, the top seam split open and stuffing started coming out. This wasn’t even extreme chewing, just normal play, and it failed almost immediately. As you can see in the photos, the tear happened right along the top seam, which is exactly where you’d expect a toy to be reinforced. Once it opened up, the toy was essentially done. For something marketed as ballistic nylon, this was really disappointing. It might be fine for very gentle dogs, but if your dog has even moderate chewing habits, this likely won’t last. Based on my experience, I wouldn’t recommend it. especially at 19.99 which is the price at time of my review, I feel it does not offer good value for money.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 9, 2026
    A
    Amazon Customer
    Bozeman, US
    ★★★★★ 5
    A Surprisingly Tough Favorite for All Four of My Dogs
    Style: Armadillo, Style: Armadillo
    I wasn’t sure what to expect from the Hound 2.0 stuffed armadillo toy, but it has been a total hit in my house. Neither the dogs nor I have managed to find the squeaker yet—so it’s either missing or extremely well hidden—but honestly, the dogs don’t seem to care at all. They love this thing. I have four dogs ranging from a 22 lb Boston Terrier to an 85 lb pitbull, plus two medium Blue Heelers in between, and this toy has been thoroughly tested by every size and play style. I was a little unsure whether they’d like the harder “shell” portion of the armadillo, but they actually love it. It gives the toy a unique texture and makes it feel more durable. Before this, I knew nothing about the Hound 2.0 brand, but I’m a fan now. My little Boston Terrier is notorious for ripping every toy he touches, and this armadillo has stood up to him like a champ. The tag said it was made for outdoor play, wrestling, and chewing—and that’s absolutely true. I haven’t taken it outside yet, but inside it has survived rough play from all four dogs and still looks brand new. I also love that each toy in this line is a different animal with the hard parts in different places. It makes them feel unique instead of just the same toy in different shapes. I’ll definitely be buying more of these. If you have a pup—big, small, or anywhere in between—I’d recommend giving this toy a try. It’s been a winner in my multi‑dog home.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 10, 2026
    J
    J S
    Massapequa, US
    ★★★★★ 4
    Unique armadillo design
    Style: Armadillo
    I love the look of this armadillo toy. The flexible rubber shell gives it a spiky texture. It has reinforced nylon seams and printed eyes. The feet allow the toy to stand on its own, daring dogs to come knock it over. With a body length of 12" and standing 5" tall, the toy is of good size for even larger dogs, but it intimidated my 8lb yorkie mix. She found the hard shell and spikes off-putting and not fun. The toy is supposed to squeak, but either mine was broken or buried too deep to be useful. This was disappointing because I think a squeak would have helped my pup engage with the toy because she can't resist a noisy toy. I'd recommend this armadillo for larger dogs than my tiny pup. It seems durable with that rubber shell around the body.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 16, 2026
    W
    Verified Purchase
    Wanda
    Draper, US
    ★★★★★ 5
    Dog toy
    These worked really good - they are made of a good quality denim like material seems dirty so far have only had them about a month.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 3, 2025
    D
    Verified Purchase
    DocMom2Four
    Fort Morgan, US
    ★★★★★ 5
    Very Sturdy and Safe for Tough Chewers
    Style: Muskie
    We already had a smaller fish toy from this brand, and after 4 months it is, amazingly, still intact. So we ordered this larger one as a holiday present. Our dog usually can rip apart any toy, even "tough chewer" toys, within a few minutes or hours, so this brand is a definite keeper for us. We have also had their giraffe toy for 4 months with no rips or holes. The best part is that there is no stuffing to worry about. Inside the toy is a rope toy instead of stuffing, so it is so much less risky. Highly recommended.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 30, 2024

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