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Astell & Kern Guide to DAPs, IEMs & More

Astell&Kern Guide to DAPs, IEMs & More

Everything You Need to Know About AK Hi-Fi Audio

Astell&Kern is a company whose name tells a story. Astell means "star" in Greek, and Kern means "core“ in German. Together, these words refer to the company's aim to continuously reach for the core of music — the "original sound." The name Astell&Kern speaks to the company's obsession with fidelity, ensuring the listener hears music exactly as the artist intended. With modern metals, sharp edges, and sleek designs, Astell&Kern products look like the future. High-end portable audio is something Astell&Kern does exceedingly well, and they have some of the best products out there.

History of Astell & Kern

In 2012, a South Korean home electronics company called iRiver (now known as Dreamus) debuted the AK100 portable media player, an MP3 player for high-resolution audio. It was dubbed an "iPod on steroids." It cost $699, and it prompted questions like, "What does a $700 iPod sound like?" The answer was that it sounded really good, despite its price tag and lack of features like wi-fi. Later that year, after releasing the AKR01 in-ear monitor, iRiver launched Astell&Kern as a subsidiary.

"We use the power of music to change your life." -Astell&Kern

Astell&Kern is dedicated to delivering best-in-class high-resolution audio devices for the playback of MQS (Mastering Quality Sound) studio-quality audio. Combining design and engineering excellence, craftsmanship and high-quality materials with state-of-the-art audio technology, Astell&Kern's range of award-winning portable music players and IEMs deliver the ultimate listening experiences.

What Makes AK Different?

Astell&Kern products stylistically stand out from the crowd with their modern metals aesthetic, sharp edges, and sleek designs. AK digital music players look like the future. The company is best known for portable high-end music players, or hi-res “iPods.” As consumers learn about the need for higher resolution music files to feed our high-quality media players, those made by Astell&Kern have thrived.

We think Astell&Kern makes some of the best music players in the world. Plus, their technology is easy to learn and navigate as a newbie or a technology wizard. If you love to listen to music “on the go” and want hi-fi sound, AK digital audio players (DAPs) are essential listening gear with Mastering Quality Sound (MQS).

MQS includes high-resolution digital music recording formats from 16-bit/44.1kHz to 24-bit/192kHz. Sound engineering tech-speak can be confusing. More is usually better. Higher amounts of information can mean better sound with crisper highs and fuller lows (bass). The trick is to process and play as much information as possible or as much information as your recordings started with in the first place. Playing all the high-res information captured during the music recording process is Astell&Kern’s expertise.

Music Players /DAPs

 

A&ultima – Be the Ultimate.

A&ultima is the flagship AK line, combining the best specifications, high technology, and superior functionality. DAPs: SP2000, SP2000T,  SP2000T Copper Nickel Special Edition, SP1000, SP1000M, SP1000M Gold.

SP3000 Music Player DAP

Sound: Dynamic, rich, layered

The A&ultima SP3000 is the newest flagship product that is the essence of everything learned and engineered over the last 10+ years of digital music processing. Not only do does AK use the latest DAC and technology available in the SP3000, they use the innovative audio technology of TERATON ALPHA, AK's Ultimate Sound Solution, which has been refined for the SP3000. With the newly developed UX/UI, the SP3000 is focused on the process and experience of listening to music.

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SP2000T Music Player DAP

Sound: Warm and rich, with other options

The T stands for True, Timeless, Triple, and TUBE. The SP2000T is equipped with a portable-friendly dual-triode KORG Nutube. And with the SP2000T's Triple AMP system, you get sound options, allowing you to switch between tube amp mode (warm and nostalgic), op amp mode (clarity and dynamics), and hybrid mode. Equipped with four ESS ES9068AS DACs and 256GB of memory, the SP2000T is equipped with Wi-Fi and two-way Bluetooth. There's a 5-inch full HD touch display and 256GB of memory.

$2,499.00

 

A&futura – The evolution of a masterpiece.

A&futura is an ever-innovating lineup. It inherits the identity of Astell&Kern and expands the range of music through new and unique technology. Models: SE180, SE100, SE200.

SE180 Music Player DAP

Sound: Detailed and balanced

The SE180 was AK's first modular DAP. It comes with the default SEM1 module, with three other modules available for purchase separately. The SE180 features an innovative double-locking design that securely connects each component while providing smooth lines that naturally flow without any sense of separateness between the two pieces. By applying different DAC/AMP configurations and adjusting the tuning and outputs for each module, the user can choose the most suitable module for their sonic preferences for high fidelity audio.

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Astell&Kern SEM2 Module for SE180 DAP

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Astell&Kern SEM3 Module for SE180 DAP

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Astell&Kern SEM4 Module for SE180 DAP

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A&norma – Enjoy the Sound.

A&norma ensures the best sound quality wherever you are, thanks to its powerful battery life and excellent portability. DAPs: SR25MKII, SR1

SR25 MKII DAP Music Player

Sound: Analytical, detailed

The SR25MKII is the smallest and the least expensive AK DAP. It's a great entry into the AK lineup, and it's going to make your music sound way better than your phone or computer. The SR25 MKII offers more versatile connectivity options with the addition of a 4.4mm balanced output for the first time in an A&norma player. You'll get up to 20 hours of playback, more than enough to get you through your day. The top and bottom edges of the bezel are angled, giving the impression of a smaller rectangle floating freely inside the chassis. The pattern on the side is designed to draw attention to the volume wheel while conveying an impression of sound.

A&norma SR25 MKII Music Player DAP
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KANN - The Power House.

KANN is a product line that emphasizes performance with a sense of weight. Focusing on the overwhelming power of audio output and clear sound, it offers stable and high-quality sound. DAPs: Max, Alpha, Cube, KANN

KANN Max Music Player DAP

Sound: Detailed and resolute

The KANN Max is AK's most powerful music player to date. Its size, sound, and power make it an imposing presence in the AK DAP lineup. The KANN Max is equipped with four ES9038Q2M DAC chips and supports up to 32-bit 768. You’ll be familiar with the output levels if you know of or have the KANN Alpha or the ACRO CA1000. You can set the output level on these devices according to your power needs. The low output does 2Vrms unbalanced and 4 on balanced. Mid output level does 4Vrms on unbalanced and 8 on balanced. The high output level does 6Vrms on unbalanced and 12 on balanced. And distinctive to the ACRO and now the KANN Max is the super high gain level, giving you a whopping 8Vrms in unbalanced and 15Vrms in balanced mode.

Kann MAX Digital Audio Player Front
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Sound: Warm and full-bodied

The Alpha is powerful, customizable, and full of features. Dual ESS ES9068AS DACs give the Alpha a warm and full-bodied sound, but you can customize the sound with DAC filters. The Alpha was the 1st AK DAP to include a 4.4 balanced output port. The Alpha boasts noise-free output because AK builds in an independent structure that completely blocks interference from outputs that are not being used; they are switched off, preventing the noise from occurring. At 11.04 ounces, the Alpha is on the heavier side as DAPs go. You get a good 14.5 hours of playback time, and a full charge in 3.5 or 5 hours.

Astell & Kern KANN Alpha DAP - Onyx Black
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SA700 Music Player

Sound: Analytical, detailed

The SA700 was the first DAP to use dual AK4492ECB DACs from AKM. They give a more analytical sound to the SA700, making it a good choice for critical listening. Highlights of this DAP include a retro design, featuring snazzy sliding cover to protect the microSD card slot on the bottom of the device, hearkening back to a classic and nostalgic design from Astell's earlier days. The SA700 has 128GB of built-in memory, 8.5 hours of playback, and balanced 2.5mm and unbalanced 3.5mm outputs.

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KANN MAX
KANN MAX
$1,299
Anthracite Gray
 
 
 
Aluminumm
 
2.68" x 4.6" x 0.92"
10.76 oz
4.1" Touchscreen
HD 720x1280
Quad-DAC:
ESS ES9038Q2M
 
USB Type-C Input
Outputs
3.5mm Unbalanced
2.5mm Balanced
Optical 3.5mm
4.4mm Balanced
Battery Life
13hr Playback
--
5.5hr charge (5V/2A)
3.5hr chg (9V/1.67A)
Storage
64GB Internal
microSD ≤1TB
 
Supports WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
Windows 7, 8, 10 (32/64bit)
MAC OS X 10.7+
Wi-Fi, Bluetooth v5.0
Decoding
≤32bit / 768kHz
Native DSD
 
Frequency Response
Condition: 20Hz-20kHz
±0.023dB Unbalanced
±0.026dB Balanced
Condition: 20Hz-70kHz
±0.35dB Unbalanced
±0.072dB Balanced
Output Level
2-8 Vrms Unbalanced
4-15 Vrms Balanced
 
Impedance
1 Ohm (3.5mm)
1.6 Ohm (2.5mm)
1.6 Ohm (4.4mm)
Select a DAP to view and compare Specifications
KANN Alpha
KANN ALPHA
$1,099
Onyx Black
 
 
 
Aluminum
 
2.68" x 4.6" x .98"
11.14 oz
4.1" Touchscreen
HD 720x1280
Quad-Core Dual DAC:
ES9068AS
(8-channel)
USB Type-C Input
Outputs
3.5mm Unbalance
2.5mm Balance
Optical 3.5mm
4.4mm Balaced
Battery Life
14.5hr Playback
--
5hr charge (5V/2A)
3.5hr chg (9V/1.67A)
Storage
64GB Internal
microSD ≤1TB
 
Supports WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF
Windows 7, 8, 10 (32/64bit)
MAC OS X 10.7+
Wi-Fi, Bluetooth v5.0
Decoding
≤32bit / 384kHz
Native DSD
 
Frequency Response
Condition: 20Hz-20kHz
±0.021dB Unbalance
±0.024dB Balance
Condition: 20Hz-70kHz
±0.21dB Unbalance
±0.155dB Balance
Output Level
2-6 Vrms Unbalance
4-12 Vrms Balance
 
Impedance
0.8 Ohm (3.5mm)
2.0 Ohm (2.5mm)
1.8 Ohm (4.4mm)
Select a DAP to view and compare Specifications
Select a DAP to view and compare Specifications
Select a DAP to view and compare specifications

SP2000 Music Player DAP

Sound: Full-bodied, clear, transparent

The SP2000 is the first to use separate, independent audio channels between the unbalanced and balanced outputs. It's equipped with two AK4499EQ DACs. The AK4499EQ DAC chip - one of the best on the market - uses the most advanced 'Current Output Architecture' technology. To take full advantage of this new architecture, Astell&Kern redesigned the Op Amp and analog amp block configuration completely. The new circuit design optimizes the current consumption and brings out the most from these new DAC chips. The combination of the SP2000 and AK4499EQ chips provide mind-blowing audio quality. The SP2000 has the most memory of any AK player — 512GB. That's 700-plus CDs or 8,000-plus tracks of FLAC files. You get about 8 hours of battery life, and a full charge in 2.5 hours.

Which Astell&Kern DAP ...

  • Is the smallest and lightest: SR25 MKII
  • Has the most sound customizations: SE180, SP2000T
  • Has the best battery life: SR25MKII
  • Has the most internal memory: SP2000
  • Sounds detailed and analytical: SR25 MKII, SE180 with SEM3 module
  • Sounds warm and full-bodied: SP2000T, SP2000, SE180 with SEM2 module
  • Is the most powerful: KANN Max and KANN Alpha

Headphones and IEMs

Popular with performing artists and audiophiles, in-ear monitors, or IEMs, are a fantastic option for people who want the fidelity of full-size headphones with the portability and convenience of earbuds. While Astell&Kern is primarily known for their digital audio players, they have come out with several fine IEMs over the years that echo the design elements and sound quality of their DAPs. Astell&Kern has teamed up with other audio manufacturers for many of their IEMs, including JH Audio, Beyerdynamic, and Campfire Audio. They also collaborated on a full-size headphone with Beyerdyn

PATHFINDER IEM

Sound: Bass meets clarity

The hybrid PATHFINDER is AK's most recent collaboration with Campfire Audio. Featuring a "mountain peak" inlay design, the PATHFINDER combines AK's "light and shadow" design philosophy with Campfire's "awe of nature" design philosophy. Featuring a warm and rich sound, the PATHFINDER has a new Dual-Chamber Balanced Armature (BA) Driver from Knowles for the key part of the midrange, two BA drivers for high frequencies, as well as two dynamic drivers with a hybrid diaphragm that create bass and midrange. Knowles’ new ‘Dual Chamber’ Balanced Armature Driver, used for the first time ever in PATHFINDER, is an innovative driver in which a single coil operates two individual diaphragms. It’s like a twin cylinder engine – delivering more horsepower and smoother operation compared to one with a single, larger piston.

Astell and Kern Pathfinder IEM Headphones
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T9iE IEM

Sound: Neutral, slight bass boost

The AK T9iE is the third in-ear collaboration between Beyerdynamic and Astell&Kern. Specially tuned for Astell&Kern portable music players, the AK T9iE has a neutral sound signature with soft treble, linear midrange and slightly elevated bass. The AK T9iE uses Beyerdynamic's patented high-efficiency Tesla Technology.

Beyerdynamic AK T9iE IEMs
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AKT5p 2nd Generation Headphones

Sound: Forward with top-end resolution

A closed-back design, the AK T5p 2nd Generation is tuned for optimal audio performance with Astell&Kern’s portable players, providing peerless clarity across all frequencies, plus excellent bass reinforcement. Featuring high-efficiency Tesla Technology, T5p comes with an audiophile-grade 2.5mm 99.8% pure silver and OCC hybrid detachable balanced headphone cable. The headphones, which are handmade in Germany, also feature high-quality ear pads, to provide excellent comfort- even for long listening sessions. The perfection is increased with a black metal faceplate.

Odyssey IEM

Sound: Balanced and bold witop-end energy

Featuring four driver types in a dual conduction architecture, the Odyssey delivers big, intense sound that is loaded with detail and energy. A bone conduction driver adds richness and depth to the sound, while dual electrostats lend incredible treble extension and transparency. Get ready for sound you will not only hear, but feel.

 

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AK Zero1 IEM

Sound: Neutral, musical

The AK Zero1 was the first fully in-house endeavor for AK. It's a tribrid design, combining a planar magnetic driver, two balanced armature drivers, and a dynamic driver. The IEM AK ZERO1 focuses on combining the sounds of three unique driver technologies into one IEM. The AK ZERO1 harmonizes the characteristics of each driver to deliver the most natural sound to your ears. An ideal frequency response was created through the crossover network, which is designed based on a thorough understanding of each driver’s parameters. At the same time, each driver is carefully placed in the optimal 3D position, enclosed in specifically designed acoustic chambers manufactured with precise 3D printing technology. By implementing this, Astell&Kern eliminated unnecessary movement and resonance of the drivers to ensure a stable performance.

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Other Products

ACRO CA1000 Portable Amp DAC

Sound: Detailed and balanced

The ACRO CA1000 is a product that breaks boundaries. It's a headphone amplifier and DAC - four ES9068AS DACs, to be precise. But it's also a DAP! AK calls it "carryable" because you can easily transport it. It's portable in the sense that there is no external power source, so you're never tethered to an outlet. The built-in battery provides 10-plus hours of playback, and the battery is fully charged in 2.5 hours. The tilting display can be adjusted to an optimal position depending where it is placed on your desk or table. The CA1000 supports four levels of gain settings so you can drive any headphone, including the most power-hungry. HiFiMan SUSVARA? No problem! The ACRO CA1000 can be used as a Hi-Fi audio system by connecting devices using a variety of digital inputs/output (Optical, Coaxial, Type-C USB) and analog inputs/outputs (RCA). And you get 2 balanced and two unbalanced headphone outputs.

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AK CD Ripper MKII

CD ripping is simple and convenient with the AK CD Ripper MKⅡ. By setting up the ripping options in advance, the user can connect the AK CD Ripper MKⅡ and simply touch the CD ripping icon to begin. The connected Astell&Kern music player will access Gracenote's servers featuring the latest music data and automatically write the corresponding music information and album cover to the ripped music files. The user also has the option to manually enter metadata such as album title, artist, genre, and year of release for CD information that is not available on Gracenote. Furthermore, the user can set the ripping speed (normal / fast / very fast) and file format (WAV / FLAC) through the settings menu.

See this blog post about Ripping & Transferring Files on Your Astell&Kern Player.

Astell & Kern AK CD Ripper MKII
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HC2 USB-C Dual DAC Cable

With its compact size and uncompromising performance, the HC2 makes it easy to enjoy real Hi-Fi sound anytime, anywhere. High-resolution sound on streaming services allows you to fully appreciate the rich tones and emotional nuance of your music. However, as headphone ports disappear on smartphones, it makes it increasingly difficult to use wired earphones that deliver high quality sound, and people experience the limitations of wireless transmission and slow response speeds. Music lovers who wish to enjoy true high-quality Hi-Fi sound rather than what is currently being delivered by smartphone wireless standards and computers' built-in sound cards are becoming deeply concerned.

HC2 USB-C Dual DAC Cable (PEE52)
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Features

Streaming with Your Astell&Kern DAP

Streaming app such as TIDAL, Qobuz, and Spotify are available on newer Astell&Kern DAPs via Open APP Service. Open APP Service is available on:

Plus the SP1000, SP1000M, SE100, SE200, SR15, SR25, and KANN Cube.

The Open APP service allows you to install specific APK music streaming apps to your device. Open APP supports the following streaming services:

Tidal, Qobuz, Deezer, Spotify, Amazon Music, Pandora, SoundCloud, TuneIn Radio, myTuner, Sirius XM, DS Audio, Bandcamp, Melon, Bugs, Music Mate, AWA, QQ Music, KK BOX, KT genie, Joox, and Moov.  

Roon Ready

For those who enjoy streaming with Roon, the good news is that newer AK players are Roon Ready

What is Roon? Roon is a rich and engaging way to browse, organize, and listen to music. Artist photos, credits, bios, reviews, lyrics, tour dates, and composers are located automatically, then interconnected by links to build a surfable digital magazine. Roon is also a multi-room, multi-user networked audio platform, it offers features such as bit-perfect playback, DSD and PCM upsampling, multichannel support, and Signal Path display.

What is Roon Ready? Roon Ready network devices have Roon's streaming technology built in, and are certified by Roon Labs to provide the highest level of quality and performance in network streaming. Being Roon Ready means that Astell&Kern players transparently discover and connect to Roon without any configuration, and bit-perfect audio is delivered from Roon to the player. This allows you to stream music from your device using Roon as your music management and playback engine.

In 2019, the SP1000 and the SP2000 became the first AK DAPs to be certified as Roon Ready. The following Astell&Kern DAPs are compatible with Roon:

  • SP2000 (with March 2021 firmware update)
  • SP1000 (with March 2021 firmware update)
  • KANN ALPHA (with a June 2021 firmware update)
  • SP1000M (with a July 2021 firmware update)
  • SE180 (with August 2021 firmware update)
  • SE200 (with September 2021 firmware update)
  • SP2000T (with a December 2021 firmware update)
  • ACRO CA1000 (with a March 2022 firmware update)
  • KANN Max (with a July 2022 firmware update)

Check out this blog post for more: Astell&Kern + Roon: How to Set Up Your Music Player as a Roon Endpoint  

AK File Drop

AK File Drop makes wireless file transfers simple. Using AK File Drop, you can freely transfer files wirelessly through a PC, smartphone, or FTP program on the same network. Music file management is now possible with a wireless solution. Whereas BT Sink can stream your music from another device, AK File Drop can actually transfer those files to local storage on your device.

Check out this blog post for more: How To: Astell&Kern File Drop

BT Sink

BT Sink connects your AK player to an external device via Bluetooth, similar to connecting a smartphone with a BT speaker. Music from an external device, such as a smartphone, can now be played back in high quality on your applicable AK DAP using BT Sink. This is pretty cool, especially if you have a large music library on your phone or source device. Being able to connect it via BT makes for an incredibly versatile device and allows you to access your music if you can't fit it all on the music player.

Check out this blog post for more: How to: Astell&Kern BT Sink

Check out our support page for Astell&Kern, where we post and archive firmware updates and APK information. 

Technology

Connecting Your Astell&Kern DAP to an External DAC

Chord Hugo 2 to KANN Alpha via a
Silver Dragon Toslink Form Fit Cable

Chord Mojo 2 to Astell&Kern SP2000T via a
Silver Dragon Toslink Digital

Chord Mojo 2 to Astell&Kern SE180 via a
Silver Dragon USB-C Cable

The DACs in Astell&Kern music players are great, but if you own a DAC that you prefer, you may connect it to your AK DAP via a Silver Dragon Toslink or USB Cable.

We make two Silver Dragon Toslink cables to fit your needs. The Silver Dragon Toslink Form Fit Cable is designed specifically to fit between your AK music player* and the Chord Hugo/Hugo2 or Chord Mojo/Mojo2. Note that you cannot switch a Toslink form fit cable between different devices because it will not fit. If you want that flexibility, the Silver Dragon Toslink Digital Cable can fit multiple devices.

*Except SP1000M, SE200, SE180, SE100, SA700, KANN, SR25 mkii, SR25, SR15, AK70/AK70MKii, and AK Jr.

Connect Mini Toslink into the headphone output of your AK DAP. Connect Standard Toslink into the OPT input of the Chord Hugo.

For USB options, we have the Black Dragon Form Fit USB Cable and the Silver Dragon Form Fit USB Cable. The 3" RT USB B Micro to RT USB B Micro OTG version is perfect for connecting your Chord DAC to an AK DAP.

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TERATON ALPHA

TERATON ALPHA is AK's ultimate Sound Solution to produce audio playback that is close to the original sound through the use of effective power noise removal, efficient power consumption and amplification without compromise through the audio output interface.Many people think “It is the DAC that determines the sound in the DAP, and in the end, if you use the same DAC, the sound will be similar for each product.” The DAC does play a large part of the sound signature in a DAP, but it's not the only factor that determines the level of sound.

DAPs can be largely divided into three sections: power, amplifier, and interface.

  • Power: A&K's audio technology effectively removes power noise and converts the signal, which is essential to the power of the audio.
  • Amplifier: The reason why the same DAC produces different sound signatures is because of differences in amp design. A&K's advanced AMP technology features efficient power consumption and powerful amplification that delivers performance without compromise.
  • Interface: The audio interface that converts digital signals to analog and outputs then is composed of technology developed by AK that has been enhanced over the years.  

TERATON ALPHA features Astell&Kern's patented technologies that are the result of tens of thousands of hours of continuous research and development to produce sound close to the original sound the artist and producer intended.

ReplayGain

ReplayGain allows your audio player to automatically adjust the volume level between tracks in order to maintain a consistent playback level. ReplayGain supports up to 24bit/192kHz sound sources.

Dragon Cables

Choosing an audio cable may be your last consideration, but it's certainly not the least. Cables are the icing on your audio cake, and they can make or break your listening experience. At Moon Audio, we craft custom cables to improve the sound of your headphones and other audio gear.

Your choice of cable is going to depend on a couple of factors, the first being the sound signature of your DAP. We recommend the Silver Dragon for warmer DAPs and the Black Dragon for more analytical-sounding DAPs. That being said, the sound signature of your headphones is also going to be a factor. Bottom line: If you are looking to add weight and warmth to the overall sound, or if you want a smoother top end, go with the Black Dragon. If you are looking for more detail, clarity, and top-end sizzle, go with the Silver Dragon.

Why Dragon Cables?

Generally, stock audio cables are manufactured with subpar materials, metals with impurities, poor geometries, and an overabundance of layers to make them look and feel like a fire hose. Inconsistency and lack of quality control in stock cables can lead to poor sound quality and a veiled sound vs what the musician intended for you to hear and feel from the music. Dragon cables are handcrafted to the highest standards and made to order according to your specific needs. At Moon Audio, we create a custom cable for you using the highest quality UP-OCC silver or copper conductors that can be manufactured. UP-OCC metals are void of impurities and are optimized for signal transfer and sound quality. We have one of the largest collections of audio and headphone connection options available online and we create limitless audio cable options depending on your specific gear and needs.

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