1. Introduction
Thank you for choosing the Linsoul Kiwi Ears x Crinacle: Singolo In-Ear Monitors. These high-fidelity wired earbuds are the result of a collaboration between Kiwi Ears and renowned audio reviewer Crinacle, designed to deliver an exceptional audio experience. The Singolo features an 11mm Dynamic Driver with the innovative Kiwi Acoustic Resonance System (KARS) and a detachable cable for enhanced durability and customization. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your Singolo IEMs.

Image: The Linsoul Kiwi Ears x Crinacle Singolo In-Ear Monitors, showcasing their design and detachable cable.
2. Product Overview
2.1 What's in the Box
- Kiwi Ears x Crinacle: Singolo In-Ear Monitors
- Detachable IEM Cable
- Assorted Eartips
- User Manual

Image: The complete package contents of the Singolo IEMs, including the earbuds, cable, and ear tips.
2.2 Key Features
- Crinacle's Tonal Signature: Tuned in collaboration with Crinacle, featuring an 8dB sub-bass shelf for powerful bass that cuts off cleanly at 300Hz, a neutral midrange, and a natural treble decay.
- Kiwi Acoustic Resonance System (KARS): A patented discrete band-pass filter that manipulates airflow to the driver, regulating low frequency output for a tight sub-bass shelf.
- Custom Japanese-Made LCP Diaphragm Driver: An 11mm dynamic driver with a Liquid Crystal Polymer (LCP) diaphragm, chosen for its crisp yet natural tonal characteristics and fast transient response.
- Detachable 2-Pin 0.78mm Cable: Allows for customizable user experience and extends the lifespan of the IEMs.

Image: An exploded diagram illustrating the internal components of the Singolo's 11mm dynamic driver, highlighting its intricate design.
3. Setup
3.1 Attaching the Cable
- Identify the left (L) and right (R) earpieces and the corresponding connectors on the cable. The cable connectors are typically marked with 'L' and 'R'.
- Align the 2-pin connector on the cable with the receptacle on the IEM. Ensure the pins are correctly oriented.
- Gently push the connector into the IEM until it is securely seated. Do not force the connection.
- Repeat for the other earpiece.
3.2 Selecting and Installing Eartips
Proper eartip selection is crucial for optimal sound quality, especially bass response, and comfort. The Singolo comes with various sizes of silicone eartips. Experiment with different sizes to find the best fit for your ears.
- A good seal is essential for experiencing the full bass response and passive noise cancellation. If the bass sounds weak, try a larger eartip size or adjust the insertion.
- To install an eartip, gently push it onto the nozzle of the IEM until it is firmly attached.

Image: The Singolo IEMs with their detachable cable connected to a portable audio player, demonstrating a typical setup.
4. Operating Instructions
4.1 Wearing the IEMs
- With the cable attached and eartips installed, gently insert each IEM into the corresponding ear canal.
- Adjust the earpiece until it feels comfortable and forms a good seal. The cable is designed to loop over the top of your ear for a secure fit.
4.2 Connecting to an Audio Source
Connect the 3.5mm jack of the cable to your audio source (e.g., smartphone, digital audio player, computer, audio interface). Ensure the connection is secure.
4.3 Volume Control
Adjust the volume directly from your audio source. Start with a low volume and gradually increase it to a comfortable listening level. Avoid excessively high volumes to prevent hearing damage.

Image: A detailed view of the Singolo IEMs resting on a wooden surface, highlighting their aesthetic design and build quality.
5. Maintenance
5.1 Cleaning the IEMs and Eartips
- Regularly clean your IEMs and eartips to maintain hygiene and sound quality.
- Remove the eartips from the IEMs.
- Wipe the earpieces with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Clean the eartips with mild soap and water. Rinse thoroughly and allow them to air dry completely before reattaching.
- Gently remove any earwax or debris from the nozzle filters using a small, soft brush or a cleaning tool if provided.
5.2 Cable Care
- When detaching the cable, grasp the connector firmly, not the cable itself, and pull straight out.
- Avoid sharp bends or kinks in the cable, as this can damage the internal wires.
- Store the IEMs and cable in a protective case when not in use to prevent tangling and damage.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound or sound from only one side | Loose cable connection; Incorrect cable orientation; Audio source issue; Damaged cable/IEM. | Ensure cable is fully inserted and correctly oriented. Test with another audio source. Try swapping the cable if you have a spare. Inspect for visible damage. |
| Weak or absent bass | Poor eartip seal; Incorrect eartip size; Earwax buildup in nozzle. | Experiment with different eartip sizes to achieve a tight seal. Re-insert IEMs to ensure proper fit. Clean nozzle filters. |
| Distorted sound | Volume too high; Audio file quality; Damaged driver. | Reduce volume. Try a different audio file or source. If distortion persists, contact support. |
| Cable tangles easily | Improper storage. | Always coil the cable neatly and store it in a protective pouch or case when not in use. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | Kiwi Ears x Crinacle: Singolo |
| Driver Type | 11mm Dynamic Driver (LCP Diaphragm) |
| Frequency Range | 20Hz - 20kHz |
| Impedance | 32 Ohm |
| Connectivity Technology | Wired (3.5mm Jack) |
| Cable Feature | Detachable 2-pin 0.78mm |
| Noise Control | Passive Noise Cancellation |
| Material | Metal, Plastic |
| Item Weight | 0.15 Kilograms (approx. 5.1 ounces) |
8. Warranty and Support
Linsoul products are manufactured to high standards and undergo rigorous quality control. For any issues or inquiries regarding your Kiwi Ears x Crinacle: Singolo In-Ear Monitors, please contact Linsoul customer support or the retailer from whom you purchased the product.
Please refer to your purchase documentation for specific warranty terms and conditions. Typically, products may be eligible for return or replacement within 30 days of purchase, subject to the retailer's policy.
For further assistance, visit the official Linsoul website or contact their customer service department.





