1. Product Overview
The Audeze CRBN Electrostatic Headphones are open-back, over-ear headphones designed for high-fidelity audio reproduction. They incorporate patent-pending electrostatic technology with carbon nanotubes and an innovative polymer film for precise sound. These headphones are engineered for use with 580 Volt Pro Bias amplifiers.

Figure 1: Front view of the Audeze CRBN Electrostatic Headphones.
Key Features:
- Patent-pending carbon nanotube film technology for electrostatic drivers.
- Innovative polymer film design for accurate sound reproduction.
- Custom machined aluminum 5-pin DIN connector.
- Accurate low frequency performance and excellent dynamic range.
- Lightweight open-back design for extended listening comfort.
- Constructed with magnesium and carbon fiber materials.
Video 1: Overview of the Audeze CRBN Electrostatic Headphones. This video highlights key features such as patent-pending electrostatic technology with carbon nanotubes, an innovative polymer film design for sound reproduction, and a custom machined aluminum 5-pin DIN connector. It also details the open-back design, lightweight magnesium and carbon fiber construction, and compatibility with 580-volt Stax Pro bias amplifiers, emphasizing the requirement for a dedicated electrostatic amplifier.
2. Setup and Connection
The Audeze CRBN headphones require a dedicated electrostatic headphone amplifier for operation. They are compatible with 580 Volt Stax Pro bias amplifiers, including models from Woo Audio, Linear Tube Audio, Mjolnir Audio, Headamp, and Stax. These headphones are not compatible with standard dynamic headphone amplifiers.
Connection Steps:
- Ensure your electrostatic amplifier is powered off before connecting the headphones.
- Locate the 5-pin DIN connector on the Audeze CRBN headphone cable.
- Align the 5-pin DIN connector with the corresponding input on your 580 Volt Pro bias electrostatic amplifier.
- Gently push the connector into the amplifier input until it is securely seated. Do not force the connection.
- Once connected, you may power on your electrostatic amplifier.

Figure 2: Audeze CRBN headphones connected to an electrostatic amplifier.

Figure 3: Example of a dedicated electrostatic headphone amplifier.
3. Operating Instructions
The Audeze CRBN headphones are designed for optimal comfort and sound quality during extended listening sessions. Their open-back design provides a wide soundstage and natural audio reproduction.
Wearing the Headphones:
- Gently place the earcups over your ears, ensuring they fully enclose your ears for the best seal and sound.
- Adjust the headband to a comfortable position on your head. The lightweight construction (300 grams) contributes to comfort.
- The open-back design allows for some ambient sound to enter, providing a more natural listening experience and reducing listener fatigue.

Figure 4: Proper wearing of Audeze CRBN headphones for optimal comfort.
Listening Guidelines:
- Start with a low volume level on your amplifier and gradually increase it to a comfortable listening level.
- Avoid excessively high volume levels to prevent hearing damage and preserve the longevity of the headphones.
- The CRBN headphones are designed to deliver accurate and dynamic sound across the frequency spectrum.
4. Maintenance and Care
Proper maintenance ensures the longevity and optimal performance of your Audeze CRBN headphones. The headphones feature durable construction with magnesium and carbon fiber materials.
Cleaning:
- Use a soft, dry, lint-free cloth to wipe the exterior surfaces of the earcups and headband.
- For the earpads, gently wipe with a slightly damp cloth if necessary, then dry immediately. Avoid using harsh chemicals or abrasive cleaners.
- Do not allow moisture to enter the driver units or internal components.
Storage:
- When not in use, store the headphones in their premium aluminum travel case to protect them from dust, moisture, and physical damage.
- Avoid storing in direct sunlight or extreme temperatures.

Figure 5: Audeze CRBN headphones folded for compact storage.
5. Troubleshooting
If you encounter issues with your Audeze CRBN headphones, please refer to the following common troubleshooting steps:
No Sound or Low Volume:
- Check Connections: Ensure the 5-pin DIN connector is securely plugged into the electrostatic amplifier.
- Amplifier Power: Verify that your electrostatic amplifier is powered on and functioning correctly.
- Volume Level: Confirm that the volume control on your amplifier is not set to minimum or muted.
- Source Device: Check the audio source device (e.g., DAC, music player) to ensure it is playing audio and its volume is adequate.
- Correct Amplifier Type: Remember that CRBN headphones require a 580 Volt Pro bias electrostatic amplifier. They will not produce sound with standard dynamic headphone amplifiers.
Distorted Sound:
- Source Quality: Ensure the audio source material is of high quality.
- Cable Integrity: Inspect the headphone cable for any visible damage or kinks.
- Amplifier Settings: Check your amplifier's settings for any equalization or processing that might be causing distortion.
If these steps do not resolve the issue, please contact Audeze customer support for further assistance.
6. Specifications
Detailed technical specifications for the Audeze CRBN Electrostatic Headphones:

Figure 6: Exploded view illustrating the internal components of the CRBN electrostatic driver.
| Feature | Detail |
|---|---|
| Brand | Audeze |
| Model Name | CRBN (Carbon) |
| Model Number | 215-EX-1121-00 |
| Color | Black |
| Ear Placement | Open Ear |
| Form Factor | On Ear (Over-Ear) |
| Noise Control | None (Open-back design) |
| Item Weight | 300 Grams |
| Audio Driver Type | Electrostatic Driver |
| Enclosure Material | Aluminum |
| Construction Materials | Magnesium, Carbon Fiber |
| Compatible Amplifiers | 580 Volt Stax Pro Bias amplifiers (e.g., Woo Audio, Linear Tube Audio, Mjolnir Audio, Headamp, Stax) |
| Connector Type | 5-pin DIN (Custom machined aluminum) |
| Connectivity Technology | Wired |
| Cable Features | Retractable |
| Water Resistance Level | Not Water Resistant |
| Carrying Case Material | Aluminum |
| Carrying Case Weight | 1000 Grams |
| Dimensions (L x W x H) | Approximately 16 x 14 x 8 inches |
| UPC | 819343014052 |
7. Warranty Information
The Audeze CRBN Electrostatic Headphones come with an AUDEZE 3 Year Limited Warranty. Please retain your proof of purchase for warranty claims. For full details regarding warranty terms and conditions, please refer to the official Audeze website or contact customer support.
8. Support
For additional support, product registration, or to explore other Audeze products, please visit the official Audeze website or their Amazon store.
- Audeze Official Website: www.audeze.com
- Audeze Amazon Store: Visit Audeze Store on Amazon