Qudelix 5K User manual
Copyright ©2021 by Qudelix, Inc. All rights reserved.
JULY 2021
Qudelix-5K
User Guide
Key Specification
•Bluetooth 5.0
•Class 2 (2.5mW 4dBm) up to 10m
•2.4GHz
•Qualcomm QCC5124 Bluetooth Chipset
•Dual ES9218P SABRE HiFi® DAC
•3.5mm output works with single DAC only.
•Dual DAC is available with 2.5mm output.
•High Precision MEMS Audio Clock
•aptX Adaptive, LDAC, AAC, aptX-HD, aptX, SBC
•High-Resolution USB DAC 96KHz / 24-bit
•USB Audio Class 1.0
•Windows/MacOS/Linux (No Device Driver)
•Android Device through C-to-C or OTG cable
•10-band Double Precision GEQ/PEQ
•High Sensitivity 3-D LDS (Laser Direct Structuring) Antenna
•Bluetooth Range more than 10 meters
•Qualcomm® cVc™ noise cancellation technology
•High Sensitivity MEMS Microphone
•Four Multi-functional Buttons & Two LEDs
•Over-the-Air firmware update
•Material
•Plastic Body (Black) with anti-scratch UV Coating
•Aluminium Clip (Dark Gray)
•52.8 x 26.7 x 15.6mm (including Clip)
•26 grams
Key Specification
•Output Power
•3.5mm 80mW per channel
•2.5mm 240mW per channel
•SNR (A-weighted)
•3.5mm -118dB
•2.5mm -122dB
•THD+N
•3.5mm 0.004%
•2.5mm 0.002%
•Separation
•3.5mm 79dB
•2.5mm 117dB (1KHz/32-ohm)
•Output Impedance
•Less than 1-ohm
Buttons (with BLUE LED)
Pairing Mode (long press 3 sec)
Play/Pause (Single Click)
Next Track (Double Click)
Answer Incoming Call (Single Click)
Power On/Off (long press 3 sec)
Previous Tack (Double Click)
BL(Blue Lower)
BU(Blue Upper)
Buttons (with RED LED)
RL(Red Lower)
RU(Red Upper)
Volume Down (-0.5dB)
Volume Up (+0.5dB)
Audio Output & Microphone
2.5mm Balanced Audio Output
Max. 4V RMS (240mWatt/Ch)
3.5mm Unbalanced Audio Output
Max. 2V RMS (80mWatt/Ch)
Built-In Microphone
Pairing with Android
1. Power On 5K
•Press BL(Blue Lower) button for more than 3 sec.
2. Enter Pairing Mode
•Press BU(Blue Upper) button for more than 3 sec.
•Red, Blue LED blink when pairing mode.
3. Go to your Android Bluetooth menu
•Scan Bluetooth devices.
•Select Qudelix-5K in the Available devices list.
4. Paired
•Once paired successfully, you will see Qudelix-5K in the Paired devices list.
Android - LDAC
•Android 8.0 or higher supports SONY LDAC, a high-quality audio codec.
•After pairing the device with an Android smartphone, please enable LDAC in the Android Bluetooth
menu.
•Go to Paired devices list
•Select option button for Qudelix-5K
*Enable Sony LDAC after pairing
Option Button
•Install Android Mobile App (requires Android 8.0 or higher)
•https://play.google.com/store/apps/details?id=com.qudelix.qudelix&hl=en_US
•The Qudelix App has nothing to do with Bluetooth Audio Streaming. You can get audio streaming over
Bluetooth without Qudelix App. However, we strongly recommend installing and using the app to
experience the feature-rich nature of Qudelix-5K fully.
•5K allows the APP connection with one device at a time.
•Android App uses the BR/EDR link. So, Android requires the 5K device paired to the system before
making the app connection.
Mobile App - Android
*The Red Bar indicates the app is connected to the device, gray otherwise.
1. Power On 5K
•Press BL(Blue Lower) button for more than 3 sec.
2. Enter Pairing Mode
•Press BU(Blue Upper) button for more than 3 sec.
•Red, Blue LED blink when pairing mode.
3. Go to your iOS Bluetooth menu
•Scan Bluetooth devices.
•Select Qudelix-5K in the Available devices list.
4. Paired
•Once paired successfully, you will see Qudelix-5K Connected ⓘ in the MY DEVICES list.
Pairing with iOS
Scan and select
Connected with ⓘ
Qudelix 5K Bluetooth Audio Connection
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