SKU: 25022465695

SPL Diamond Digital to Analog Converter and Preamplifier

Sale price$2249.55 Regular price$2499.50
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Description

SPL Diamond Digital to Analog Converter and PreamplifierDiamond 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

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.

DAC768v2 – the SPL reference DAC in the newest revision!

The highly acclaimed AKM AK4493 SEQ VELVETSOUNDTM premium DAC chip is used as the converter chip in the digital/analog converter within the latest version of the SPL DAC “DAC768v2”, which thanks to its architecture reproduces the finest sound details. It impresses with even lower distortion characteristics and a wider dynamic range than its predecessor.

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. The DAC768v2 features the newest version of the Spartan FPGA – Spartan 7. In contrast to the smaller SPL DAC “DAC768xs”, it not only offers an AES/EBU digital input, but also the new, optimized SPL SLP120 with VOLTAiR technology.

The SLP120 (Super Low-Pass)

The analog output of the DAC chip must be filtered by a low pass filter. 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. The filter specially optimized for the new SPL DAC768v2 is called SLP120 (Super Low-Pass).

The DAC768v2 inside the Diamond is equipped with the SLP120 – an analog “Super Low-Pass” filter with VOLTAiR technology.

DAC768v2 – what's new:

1. AK 4493 SEQ

The DAC768v2 is equipped with the latest generation of the premium DAC chip – the AK 4493 SEQ – from Asahi Kasei (previously AK 4490).

The AK 4493 SEQ not only supports the playback of PCM signals at up to 768 kHz and DSD signals up to DSD512 – this 32-bit stereo DAC with “VELVETSOUND™ technology” impresses with even lower distortion characteristics and a wider dynamic range than its predecessor.

2. Spartan 7

The DAC768v2 features the newest version of the Spartan FPGA – Spartan 7 (previously Spartan 6).

3. The newest generation of the SPL low-pass filter “SLP120”

The DAC768v2 comes with a completely new tuned low-pass filter, which perfectly matches the sonic strengths of the new converter chip. It ofers an even better representation of the stereo image as well as a three-dimensionality we never experienced from any other DAC before.

The new DAC revision can be recognized by the “DAC768v2” label on the serial number sticker.

The design of the DAC768v2 is unfortunately not compatible with devices that were built with DAC768.

In addition to the original DAC chip (previously AK4490, now AK4493), other components in the digital environment that are no longer available, such as the previously used version of the Spartan-6 FPGA (now Spartan-7), had to be updated. As the technical characteristics of these components are different from those of their predecessors, further technical adjustments had to be made to the device in order to achieve the best possible sonic performance of which SPL is known for. The analog low-pass filter with 120V technology is also different in the devices with DAC768v2.

It is therefore not possible to simply replace the DAC768 module with the DAC768v2 module.

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.

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.

Home is where the heart is

That’s why we manufacture all devices in our own production facility in Niederkrüchten on the Lower Rhine, Germany.

Slimmer is smarter

SPL Diamond – Premium DAC with VOLTAiR technology 🎶

SPL Diamond - Premium-DAC für HiRes mit Hochspannung - vorgestellt

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

Shipping Notes
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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: 25022465695

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4.3 ★★★★★
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Product Reviews
S
Some Guy
Waukegan, US
★★★★★ 4
Durable But Quirky Interactive Ball
Color: Blue
I am 30 now and my tolerance for toys that break in 2 minutes is basically zero. I picked this up during a weekend DIY project when I was fixing the deck and needed something to keep the dog occupied. The E TPU material is straight up impressiveuch abuse it can take from a large breed. My dog tends to destroy generic store brand balls but this one survived being dropped down the stairs and tossed against the siding. It is comfortable enough to use daily without feeling like it is going to shatter or hurt the dog. The internal compartment where you charge it is smart and those little pockets for the charging port are actually useful sized for my fat fingers. The smart movement is a game changer for keeping a high energy dog moving when I am busy with home improvement tasks. I was slightly worried about the 8 hour battery life but it holds a charge well enough for a few play sessions. My whole household uses this now to entertain the dog as he will not leave us alone otherwise. It works best on my kitchen tiles but it barely moves on the thick rug in the living room which is frustrating. The vibration is loud enough to be annoying when I am trying to focus on work. It is a solid 3 star product as it does what it says but has some quirks that make it less than perfect. Spending 19.99 is fair for the durability you get compared to cheaper options. I like that it is USB rechargeable instead of eating through batteries. It is not perfect but it serves a purpose in my chaotic house.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
F
Frank Paprota
Cuba, US
★★★★★ 5
Engaging and Durable: High-Energy Play with a Caveat for Sensitive Pups
Color: Blue, Color: Blue
Finding an automated toy that can survive the jaws of an aggressive chewer while keeping them physically engaged is a major win for busy pet owners. This smart interactive dog toy offers an excellent, high-tech way to keep high-energy dogs active, though its enthusiastic movement might be a bit intense for more timid pets. Dynamic and Instinct-Triggering Movement: The core appeal of this toy is its smart interactive movement. This automatic bouncing ball activates immediately upon touch, rolling and bouncing in entirely unpredictable directions. This erratic motion successfully triggers a dog's natural chasing instincts, keeping them thoroughly engaged and entertained for hours, which is incredibly helpful when you are unavailable to play. However, because the movement is so sudden and dynamic, it can occasionally scare more sensitive or easily startled dogs. Chew-Proof and Safe Construction: The durability and structural safety of the ball are highly impressive: *Chew-Proof E-TPU: Crafted with a high-density E-TPU shell, the toy is specifically built to withstand aggressive chewing and rough play from medium to large breeds. It holds up remarkably well against scratches and deep bites for long-lasting use. *Pet-Friendly Materials: The non-toxic, BPA-free material is completely safe and remains gentle on your dog's teeth and gums during fetch or heavy chewing sessions. *Injure-Free Design: The toy is engineered with smooth, rounded edges to prevent any accidental cuts or injuries during high-speed play. Supporting an Active Lifestyle: This toy serves as a fantastic tool for supporting an active lifestyle. It encourages vital daily exercise to help maintain your dog's physical health, significantly reduces boredom, and curbs destructive behaviors like furniture chewing. This makes it an absolute lifesaver for high-energy pups that need a constant physical outlet. Convenient USB Rechargeability: Powering the toy is simple and environmentally friendly. It is equipped with a USB rechargeable battery that delivers up to 8 hours of continuous play on a single charge. It also includes the necessary USB charging cable, ensuring you can quickly plug it in and have it ready for the next play session without constantly buying disposable batteries. Bottom Line: I highly recommend this smart interactive dog toy for owners of high-energy, medium-to-large breeds that need an indestructible, engaging outlet. While it may frighten more timid or anxious dogs due to its unpredictable bouncing, its premium E-TPU durability, great battery life, and excellent exercise value make it a fantastic investment for a healthier, happier pet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
S
Silverbullet875
Dallas, US
★★★★★ 5
Ymswznwe Smart Interactive Dog Toy, Pet Automatic Moving Bouncing Ball, Chew-Proof
Color: Blue, Color: Blue
This toy has been so much fun to watch my dogs interact with. I love the randomness of the movements because it keeps them guessing and keeps the toy interesting instead of becoming predictable after five minutes. They definitely weren’t sure what to think of it at first, but once they figured it out, it became hilarious entertainment. One of my dogs especially likes to hold it in his mouth and just let it vibrate, which cracks me up every time. I think toys like this are great not only for physical activity, but also for mental stimulation and curiosity. It gets them engaged in a different way than a regular ball or chew toy. While I wouldn’t consider my dogs “power chewers,” toys usually do not last long around here, so I was pleasantly surprised by how well this has held up. At the time of this review, it still looks basically brand new, so it is pretty durable. I also really appreciate that it’s rechargeable. I’m glad I’m not constantly going through batteries with a toy like this.
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Reviewed in the United States on May 11, 2026
A
Amazon Customer
Pawtucket, US
★★★★★ 2
Interesting Premise
Color: Blue, Color: Blue
It's an interesting premise for a toy -- it has a vibrating gyrator in the middle which turns on randomly for random durations. This then causes the ball to vibrate and roll around the floor. It really needs to be on a hardwood floor to move, though -- when I put it on their dog bed, it vibrates but then doesn't move anywhere. I tried a few times to get my four dogs to interact this this ball toy, but they are clearly not interested.
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Reviewed in the United States on March 20, 2026
W
Verified Purchase
w
Waukegan, US
★★★★★ 5
My dog loves it
Color: Blue
My miniature schnauzer loves it keeps him going for hours in like the fact I can open it and take the electric part out to charge it wile my dog can still play with the ball it only lasts for 45min before it has to be charged best ball I have bought in a wile my dog loves it
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Reviewed in the United States on May 10, 2026

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