Qudelix Q5K Reference DAC AMP USB + Bluetooth
Qudelix - 5K, Portable USB & Bluetooth DAC & Amp - USB-C & Battery Power, 10 Band Parametric EQ, Dual ESS SABRE DAC
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Frequently Bought Together
Reference DAC AMP
Qudelix - Q5K
ESS ES9219C DACThe experts at Qudelix wanted the device to work as a universal DAC/AMP for both high-sensitivity IEMs as well as high-impedance open-back headphones. Qudelix wanted it simple, small, yet but powerful. In addition to the sound quality and the maximum output power, they also needed to consider the battery time as well, concerning the nature of the device.
Qudelix’s engineers tried many DACs and Amplifier ICs and found ESS9219C is the best option for their goal. Besides the sound quality, the primary advantage of ESS9219C is that the built-in amplifier delivers the maximum output voltage up to 2V RMS. Furthermore, it supports the 1V RMS option at the same sound quality to save power consumption.
For high-sensitivity IEMs, the amplifier noise figure is the most important. The high-sensitivity IEM is so sensitive that it translates every electrical noise or thermal drift into audible acoustic sound, usually white noise.
On the other hand, the high-impedance headphones require a higher power amplifier. Those headphones usually have low sensitivity, and they are free from the white noise affected by the amplifier noise characteristics. Instead, they need higher power from the amplifier output to deliver enough loudness and headroom.
at a glance
• Qualcomm QCC5124 Bluetooth
• Dual ES9219C SABRE HiFi® DAC
• 3.5mm Unbalanced 2.0V RMS
• 2.5mm Balanced 4.0V RMS
• aptX Adaptive, LDAC, AAC, aptX-HD
• USB DAC 96KHz / 24-bit
• High Sensitivity 3-D LDS Antenna
QX-Over Earphones
QX-OverQX-Over is an active digital crossover with Qudelix's proprietary DSP technology. Qudelix-5K automatically detects QX-Over Earphones, processes the stereo input, and outputs Stereo Low and High band independently to earphones units through 4-channel DAC/AMP.
Multi-Driver vs. Single-DriverEarphones and Speakers can be designed with a single speaker unit or multiple speaker units. It depends on, but practically, a single driver unit can hardly reproduce the entire audio details precisely over the whole frequency range. Real-world audio is not like a single-tone but complex waves over the frequency range.
Audio Codecs
full support for all codecsThe Qudelix-5K is the world's 1st Bluetooth DAC/AMP to support all the latest codec technologies, including aptX Adaptive, LDAC, AAC, aptX HD, aptX, and SBC. aptX Adaptive is Qualcomm next generation dynamically adjustable audio codec designed to deliver robust, low-latency, low-bit rate, high quality wireless audio.
Sony's LDACSony's LDAC™ is a new audio technology from Sony that allows you to enjoy high quality wireless audio via Bluetooth. With 3x the data transmitted, LDAC provides an enhanced wireless listening experience for all your music.
Standout Features
Volume Control5K offers 2-way associative volume control for optimal sound quality. It always keeps and guarantees the full-scaled audio stream over Bluetooth or USB. In either way, you can control the loudness level via smartphone source volume or 5K device volume without any loss.
USB DACYou can have it charging and streaming at the same time with your PC or laptop while keeping the Bluetooth link with a smartphone and controlling every feature of Qudelix-5K through the companion mobile application.
RF AntennaHigh Sensitivity 3-dimensional LDS Antenna is printed on the bottom case and is placed around the red LED button. 5K provides the best RF performance in most use cases. However, for the optimal performance, please keep this area away from any metallic surfaces.
Cables for the Qudelix 5K
2.5mm Male to 4.4mm Female Balanced Adapter CableThis adapter cable has been commissioned by Scan Pro Audio to adapt amplifiers and dac/amp combinations with balanced 2.5mm outputs, such as the one found on the Qudelix 5K to a 4.4mm female socket, for use with 4.4mm balanced headphone cables.
Purchase this cable here.
2.5mm Male Jack to 4 Pin Female XLR CableThis adapter cable has been commissioned by Scan Pro Audio to adapt a balanced 2.5mm output of an amplifier such as the Qudelix 5K to a female 4 Pin XLR. As the new 2024 Audeze LCD series are now starting to come with combo cables with a 4pin XLR option as standard, this can be used to together to double the output power, compared to the 3.5mm 'single ended' output.
Purchase this cable here.
The Tech Spec
| Features | Specification | BLUETOOTH | Qualcomm QCC5124 Bluetooth System-on-Chip |
|---|---|
| DAC | Dual ES9219C SABRE HiFi® DAC |
| UNBALANCED OUT | 3.5mm Unbalanced output max. 2.0V RMS |
| BALANCED OUT | 2.5mm Balanced output max. 4.0V RMS |
| CODECS | aptX Adaptive, LDAC, AAC, aptX-HD, aptX, SBC |
| BATTERY | 6 ~ 20 hours Battery Time (500mA Battery) |
| SAMPLING RATE | USB DAC 96KHz / 24-bit |
