Qudelix-5K Bluetooth USB DAC AMP with LDAC, aptX Adaptive, aptX HD, AAC (Dual ES9219 3.5mm Unbalanced & 2.5mm Balanced Output)

This amp/DAC is extremely compact yet packed with features. The built-in 10-band parametric EQ (PEQ) is a game-changer for those who like to fine-tune their headphones. It also includes several preloaded EQ presets, including those from Oratory1990, making it even more versatile. I use it with my Arya Stealth and ZMF Bokeh, and it provides ample power to drive both. However, when using EQ with a negative preamp gain, I do need to maximize the volume to reach my normal listening level. Overall, very happy with the purchase - highly recommended.

Has a lot of options and dsp is brilliant. Would recommend it its a small package with loads of power

Omg! The software just makes it worth every penny! Very professional.

Not impressed, tried with my moondrops, was not blown away, its a decent bluetooth dac. but for this price, it don't think so. Couldn't return as it was an international purchase out of the return window.

I used the QUDELIX 5K for a few months, sold it to switch to similar Bluetooth devices only to buy it again. The 5K is superior, and here is why: • Exceptional proprietary app, with instantaneous response time, undoubtedly the best on the market. Extensive EQ capabilities and customisation, making the devise a miniaturised professional amp. • Elegant and discrete design, with customisable light so you don’t feel festively decorated all year round. • Despite the minute design, the 5K has great control buttons, easy to locate and operate. • Truly integrated clip, which does not add bulk to the slick design. • Discrete battery life, 8hrs. • The crisp and balanced sound of the ES9219C DAC chipset. • Seamless automatic switching from Bluetooth amp to Dongle amp function (many other similar DAC amps require manual switching). • Finally, size and weight. This is the smallest and lightest Bluetooth DAC amp available. Mine is paired with IE200s and, clipped to the original Sennheiser cable, or 2.5 balanced cables by OpenHearth wrapped around the neck, is virtually impossible to feel. Obviously, a personal consideration but, based on my experience, the QUDELIX 5K is unrivalled in the space of ultraportable DAC AMPs.

This is hands down the best bluetooth dac amp by miles. I though my Earstudio ES100 is already quite amazing. This goes another level in the amount of customizations. Sound is great, but thats not the main part. The software is. I set it to behave like normal bluetooh dac and the moment I connect it to the PC, it disables (!) bluetooth and works like a dac amp. It routes headphones microfone both via bluetooth and USB. So I can enjoy my comfy Koss kph30 for both music and MSTeams calls. Simply amazing.

Deze bluetooth DAC overtreft mijn verwachtingen: heel detailrijke klank, mooie textuur en timbre. Ik gebruik hem voornamelijk met een Queen Of Audio Vesper IEM en een Sennheiser/Drop HD58X hoofdtelefoon. Voor geen van beiden heb ik EQ nodig met de DAC. Zelfs een 30 jaar oude Sennheiser HD480 II klinkt, met slechts een beetje lift in de lage tonen, beter dan ooit tevoren. Het belangrijkste verkoopsargument van de DAC is de EQ, maar die is voor mij minder belangrijk, de instellingen in de app zijn zeker zo interessant. Er zijn enorm veel mogelijkheden. Een raad voor nieuwe gebruikers: doorloop aandachtig alle instellingen. Zoniet zal je enkele cruciale functies over het hoofd zien, zoals de 2 volumeregelingen in cascade. Uiteraard zijn er beperkingen: een hoog-ohmige hoofdtelefoon zoals de Sennheiser HD250II (300 ohm) is weliswaar nog net aanstuurbaar, maar daarvoor is de DAC niet gemaakt en dan moet hij echt "zwoegen". De bediening is een beetje wennen omdat de knoppen geen labels hebben, maar daar is een oplossing voor: de Qudelix 5K sticker by Sproketz.

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!

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 audífonos, poder deshabilitar la carga mientras se usa como DAC... Incluso el clip es bueno. Si acaso, hay que acostumbrarse a los controles. Podrían tener alguna referencia táctil.