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QCC5124 Quad-Core Processors
QCC5124 architecture is engineered for high performance with low power consumption. Power consumption can be reduced by up to 65 percent compared to our previous technology for both voice calls and music streaming, and devices are optimized to support longer audio playback in virtually all operating modes.
ES9219 x 2
The ES9219 SABRE HiFi SoC delivers audiophile-grade sound quality and output power, allowing the ES9219 to drive the most demanding headsets and provide a real line-level output to match professional audio equipment. The heart of the ES9219 ESS's award-winning SABRE DAC technology, with a HyperStream II modulator. This is the same architecture that is used in the world's finest audiophile equipment.
High-quality Bluetooth codecs
5K supports the latest high-quality audio codecs, including aptX Adaptive, SONY LDAC, and AAC. Android 8.0 or higher supports LDAC by default. *iOS works with Bluetooth AAC 260kbps.
2.5mm BALANCED 4VRMS
Balanced: Always Better
Within any given audio system, the Balanced provides higher output power, better linearity, and lower noise than the Unbalanced. To the 2.5mm output, 5K works with Dual ES9219 DAC/AMP. *You will need to replace the existing 3.5mm UNBAL cable with 2.5mm BAL cable.
3.5mm UNBALANCED 2VRMS
To the 3.5mm output, 5K works with Single ES9219 DAC/AMP. The ES9219 SABRE HiFi SoC delivers audiophile-grade sound quality and 2VRMS output power, allowing the ES9219 to drive the most demanding headsets and provide a real line-level output to match professional audio equipment.
Automatic Battery Care
5K manages the battery for maximum life cycle, not for the time. Furthermore, 5K draws its system power directly from USB when working as a USB DAC. In other words, 5K does NOT draw any power from the battery when charging. It helps keep the battery life longer, and it ensures the same battery charging time even while streaming audio.
10-Band Pro-Grade Equalizer
The embedded pro-grade equalizer is a vital benefit of 5K DAC/AMP over other similar products. It processes every incoming source audio from everywhere: Youtube, Apple Music, Spotify, iOS, Android, PC, Bluetooth(all Codecs), and USB. For more degree of freedom, 5K DAC/AMP supports parametric EQ in addition to graphical EQ. The embedded DSP cores perform double-precision 64-bit EQ processing, providing accurate and precise frequency response.
2-Way Associative Absolute Volume
5K always delivers the optimal Sound Quality, whatever source or device volume levels are. Any source volume level or device volume level will eventually control the 5K built-in Hybrid Volume System, keeping the source audio's original bit-resolution. No need to keep the smartphone volume or PC USB volume at the maximum anymore for the optimal Sound Quality. Adjust volume whatever comfortable way you like it.
iOS/Android App
5K Mobile App enables the user to access every detail; Battery history, charger status, volume, DAC operating profile, DAC LPF filter, Equalizer, USB DAC sample rate, microphone gain, Bluetooth codecs.
*5K is the only Bluetooth device that displays real-time LDAC bitrate.
Silicon MEMS Oscillator
The built-in MEMS audio clock helps ES9219 D/A Conversion perform its best. Silicon is inherently more reliable than quartz. MEMS OSC also provides 3000 times better Vibration Robustness than quartz OSC.
3-D LDS Antenna
5K delivers the optimal RF performance with high Sensitivity 3-dimensional LDS(Laser Direct Structuring) Antenna. The antenna is printed on the bottom case around the Red LED button.
Small & Lightweight
The smallest form factor:
52.8(H) x 26.7(W) x 15.6(D) mm (including Clip)
Weight: 25g
USB-C-to-C, C-to-A Cable included
Lukanite
2025-08-10 14:21:39
After upgrading from a LG V30 to a phone that doesn't have a headphone jack (Thanks Samsung -.-) I needed a DAC that could drive the planar magnetic HifiMan HE-560 v4 that I use daily, and this seemed to fit the bill, having the output power needed to drive these hungry headphones (it also works well with my higher-impedance Sennheiser HD 650). I've seen the FiiO BTR5 as well, and my first impression on getting this was just how much lighter and smaller the 5K is; feels like half the size. You do miss out on the premium-feeling glass and nice display, but the 5K still seems well built.It also sounds great on both 3.5mm and 2.5mm TRRS; one of the best features I think is that you have two digital volume controls; basically, you can set a volume 'cap' on the 5K itself and then use your Android volume controls to step within that zone. The on-device steps are 0.5dB each which makes finding that 'perfect' volume easy.One caveat is that the on-device controls are a bit fiddly to get used to; when I first got it in the box I struggled to figure out how to even turn it on and off, since all you get are two rockers, a red LED on one side, and a blue LED on the other. If you open the app and go to the 'MISC' section, you can see what actions the buttons are bound to and do a bit of customization as well. I don't touch them often except to pause/skip, adjust volume, or power on/off, so it works well enough for that.Speaking of the app, this is one that I actually consider beneficial - it lets you change the volume and set up EQ, but it also lets you configure a lot of things inside of the firmware, like what codecs to advertise, what bitrate to use for USB, and what input to prefer (you can have two Bluetooth devices connected at once, and it'll play audio from either one at a time, not mixed). All of the defaults are fine, but clearly a lot of technical thought has gone into exposing these settings to the user, which I appreciate. Showing the LDAC bitrate was particularly useful when I was trying to figure out why sometimes my tablet sounded worse (looks like it was dropping to 330Kbps).Overall, it's a puny portable, USB+Bluetooth DAC that sounds great and is filled to the brim with features for those who want to tinker with the way it sounds.P.S. For those looking for the 2.5mm pinout, it's (from the base to the tip) L-, L+, R+, R-. Couldn't find it anywhere, not even in the docs...
The Reiko
2025-08-08 14:07:57
I came from the Fiio BTR7 which was usually crowned as the absolute best portable bluetooth dac amp that money can buy. It packed quite a punch of power for how small it was. unfortunately thats its biggest selling point. As the battery degraded to the point that it needs to be permanent plugged in to actually work and function. The firmware and software are genuinely awful, Unable to even just play music without the start of the song fadinh in and their seemingly being no actual way to fix it. And dont even get me started on the user repairability being absolutely nonexistent with the fact that the 2 backs are glued glass, So you at the bare minimum need a heat gun just to even get the glass off. which why not buy a new one at that point? You might be asking yourself "Ok, Why does this matter?" and thats a great question!The Btr7 is 200$, Meanwhile this Qudelix-5k is 100$, Has AMAZING software, Packs a good enough punch to use pratically any reasonable headphone with it. AND, is even more repairable than the Btr7. Sure, It doesnt have an Oled screen like the btr7, But does it need one? I mean a screen takes power yknow. and every watt of power possible should go straight to making sure the device can be what it was intended to be, a bluetooth dac amp that works as just that. Simplicity is better.Iv been using this with my brand new sennheiser Hd560S and it works like a charm and gets even very loud if I want it to be loud. Did I also mention the software? you can have individual EQ profile's for whatever device you are using. Built directly into the the device itself through its app. Lemme tell you, It works alot better and was far easier loading a profile than the janky setup I had for my android. which also caused lots of popping and distortion. But not here!That means the clarity of what im listening to is very very very clear to the source media and I dont have to worry about if the device itself is gonna do weird things to the audio and mess with it in ways I may not intend for it to mess with. Unlike the Brt7 which does the exact oppisate and even allows me to have fine control over what I might wanna hear from the EQ. instead of some vague preset options that I have no idea what they are doing to the audio itself.Its time to talk about the actual design and it is very thoughtfully designed. It actually feels like it was made with the intended purpose of being used by actual real people and not for the sole purpose of looking cool. to think that a 100$ device can somehow someway beat a device in straight up function without needing to buy extra accessories this hard is quite laughable.With all that being said I do wish that instead of a 2.5mm balanced output we instead got a 4.4mm balanced output port. Something the Btr7 does have over the Qudelix-k5.I know in this review I talked about the btr7 alot, Probably more than the k5 itself but I seriously need to get across to you the reader that this device far outperforms the in my own personal experience frustrating to use, far more expensive and in my own opinion wasteful device. You spend about double the price for just a bit more power and a funny little screen which is nice but it is not needed and it CERTAINLY is not 100$ more worth it in my personal opinion. In all honesty as far as I can tell you just simply can't beat this tiny little monster for its price to performance. The amazing software, amazing audio quality, amazing bluetooth connectivity. The sheer thoughtfulness of the designers of this product made a product for you with the intention that you are going to use this daily and you will not be disappointed in what you paid for.
TOMMY THORN
2025-05-22 16:02:00
My !@#$ Apple AirPodsâ„¢ broke and never worked well; using my excellent Jerry Harvey Audio JH11 IME with little dongle proved very awkward and unreliable so I finally started searching for a portable solution. Reviews of the the Qudelix-5K came up positive, but I was still blown away at how awesome it is. It's tiny and light and with a built-in handy clip attaches to the collar. Audio quality is perfect and even driving my HD-660 S aren't a problem. There is an enormous DSP settings library including two for the my headphones and that really opened them up.The associated iOS app (I haven't tested the Android version) is crazy feature rich and I _love_ how it provides insights into everything (battery state over time, current codec, bitrate, etc). It's really rare that I'm impressed with apps that ships with devices.The Qudelix-5K wasn't cheap but in my honest opinion this is was totally worth the money and I'm really happy it exists and that I found it. It enables me to get so much more value out of my favorite headphones/IEMs.It's such an overpowered device that it's tempting to wish it included a standalone audio player as well (it already has the battery and ample processing power).
(((k)))
2025-05-07 13:37:50
I have had the Qudelix 5K for 2 years now. I use it everyday for at least 4 Hrs. Very good battery life for its size. I can't even remember a single connection issue even once. Turn it on, it connects, it plays. So, super reliable. Sound is good and it is so small and light really easy to live with. Perfect product and satisfied my needs perfectly. Would recommend, very good and reliable way to convert wired headphones to wireless duty. No complaints.
Don Julien
2025-04-27 10:16:10
La calidad de audio es excelente. Lo uso con mis Sennheiser HD 599 con cable balanceado de 2.5mm, y con unos KZ x HBB pr2 con el jack de 3.5 (pediré un cable balanceado también). Sé que ninguno tiene una impedancia "complicada", pero a ambos los maneja con tranquilidad.Se conecta sin problemas a mi laptop, tanto a su Bluetooth normal (en AAC), como a un adaptador APTx que compré. También a mi celular, en LDAC. Se empareja a ambos simultáneamente sin problema. También como DAC se porta muy bien.El grado de control que permite la app es increible: EQ paramétrico, poder usar el micro interno (que funciona bastante bien) o el de tus audÃfonos, poder deshabilitar la carga mientras se usa como DAC...Incluso el clip es bueno.Si acaso, hay que acostumbrarse a los controles. PodrÃan tener alguna referencia táctil.
Brice
2025-04-13 16:51:19
Pas grand chose à rajouter par rapport aux autres.J'ai deux Etymotic ER3SE et ER4SR, j'ai essayé des DAC de chez FiiO et l'officiel de Etymotic.FiiO utilise des puces Cirrus Logic, Etymotic ESS et celui-ci ESS, mon interface audio aussi est en ESS.Cirrus Logic est très bon dans son genre mais je préfère la propreté du matériel fait avec des puces ESS mais je trouve que FiiO en fait trop.Le son est clair, net, marge pour EQ avec l'EQ built-in ou PowerampEQ j'en suis ravi.Je m'en sert aussi pour produire en mobile sur mon laptop et retrouver la signature que j'ai sur mon PC fixe, c'est du pur bonheur j'entends tout comme dans mon home studio.Le produit ne chauffe pas du tout, l'application est superbe c'est 5/5.
Purplemind3000
2025-02-24 17:59:05
I was on the hunt for a Bluetooth/USB Dongle DAC to use my Sennheiser IE600 at the gym when I stumbled upon the Qudelix 5K. I ordered it, and the moment I plugged it in, I was seriously impressed by the power and sound quality. It has plenty of juice to drive the HD600/660S2 and all my IEMs. I didn’t really use it as a Bluetooth receiver since I need ANC at the gym and honestly, the sound quality over Bluetooth isn't that great. But in wired mode? It’s a blast! I found an awesome application is to use it in my car by connecting it to my iPhone and plugging it into the AUX port. The sound in my car improved 10x! No joke. Just remember to turn off charging mode when you connect it to your iPhone. The battery life in wired mode is fantastic too—after two weeks on a driving trip and tons of listening, the battery only dropped to 70%! Plus, the app has a loads of adjustments and different EQ settings, including curaded EQ settings for a ton of headphones. I really like being able to drop the pre-gain, which helps keep things distortion-free while cranking up the bass in my headphones and car speakers. This device is a gem! I do wish it had a 4.4 mm balanced out instead of a 2.5 mm, but an adapter works fine. It's not quite as good and open sounding as a Mojo 2, but it still sounds amazing and is way more portable and customisable. Such a fantastic product, really blew me away! Just get one!
Den
2025-01-25 15:07:03
Muy buen dac de auriculares. Me ha sorprendido la potencia que da para lo pequeño que es. Tiene buen sonido pero lo que realmente lo hace diferente a todo el resto y por tampoco dinero es su software. Tienes la posibilidad de tocar un montón de cosas, su ecualizador PEQ de 20 bandas es lo más completo que he visto en amplificadores de auriculares y el hecho de poder cargar ecualizaciones a través de autoeq es ya genial. Por su salida balanceada saca una potencia enorme. La recomiendo encarecidamente por encima de la normal.
sultan
2024-12-31 14:49:25
Very useful dac/amp combo
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