1. Introduction
The ESI MAYA44 eX is a high-performance 24-bit/96kHz PCIe audio interface designed for professional audio recording and playback. It offers 4 simultaneous input and 4 simultaneous output channels, a microphone preamp with +48V phantom power, and a Hi-Z instrument input, making it suitable for various studio and home recording applications. This manual provides essential information for the installation, operation, and maintenance of your MAYA44 eX.
2. Key Features
- 24-bit / 96 kHz 102dB(a) A/D converter and 24-bit / 96 kHz 108dB(a) D/A converter for high-fidelity audio.
- 4 simultaneous input and 4 simultaneous output channels for versatile connectivity.
- Integrated microphone preamp with switchable +48V phantom power for condenser microphones.
- Dedicated Hi-Z instrument input for direct connection of guitars and other high-impedance instruments.
- Simultaneous full-duplex recording and playback capabilities.
- PCIe x1 interface for low-latency performance.
3. Package Contents
Please verify that all items are present in your package:
- ESI MAYA44 eX PCIe Audio Interface Card
- Quick Start Guide
- Driver CD (or download instructions)
- Software Bundle (if applicable)
4. Setup Guide
4.1 Hardware Installation
- Power Off Computer: Ensure your computer is completely powered off and disconnected from the power source.
- Open Computer Case: Carefully open your computer's case to access the motherboard.
- Locate PCIe Slot: Identify an available PCIe x1 slot on your motherboard.
- Insert MAYA44 eX: Gently but firmly insert the MAYA44 eX card into the PCIe slot until it is securely seated.
- Secure Card: Fasten the card with the retaining screw or clip provided by your computer case.
- Close Case & Power On: Close the computer case, reconnect the power, and power on your computer.

Figure 1: The ESI MAYA44 eX PCIe Audio Interface card, showing its orange circuit board and various components.
4.2 Driver Installation
After hardware installation, you must install the appropriate drivers for your operating system (Windows). Drivers are crucial for the MAYA44 eX to function correctly and provide low-latency performance.
- Download Drivers: Visit the official ESI Audio website (www.esi-audio.com) and navigate to the support section for the MAYA44 eX. Download the latest drivers compatible with your Windows operating system (e.g., Windows 10, Windows 11).
- Install Drivers: Run the downloaded driver installer and follow the on-screen instructions. It is recommended to restart your computer after installation.
- Verify Installation: After restarting, check your computer's Device Manager to ensure the MAYA44 eX is recognized and functioning without errors.
5. Operating Instructions
5.1 Connecting Audio Devices
The MAYA44 eX features a variety of input and output options:
- Line Inputs (1/2, 3/4): Connect line-level audio sources such as synthesizers, drum machines, or external preamps using 1/4-inch TRS/TS cables.
- Microphone Input (Line In 1/2): This input can also function as a microphone input. Activate +48V phantom power via the control panel for condenser microphones.
- Hi-Z Instrument Input (Line In 3/4): Connect a guitar or bass directly to this input.
- Line Outputs (1/2, 3/4): Connect to studio monitors, headphones, or other audio playback systems.
- S/PDIF In/Out: Digital audio input and output for connecting to compatible digital devices.

Figure 2: Rear panel of the ESI MAYA44 eX, displaying the 1/4-inch jack inputs (Line In 1/2, Line In 3/4/Hi-Z), outputs (Line Out 1/2/HP, Line Out 3/4/HP), and S/PDIF optical digital input/output ports.
5.2 Software Control Panel
The MAYA44 eX comes with a dedicated control panel software that allows you to manage various settings, including:
- Input/output levels and routing.
- Sample rate and buffer size settings.
- Phantom power activation for microphone inputs.
- DirectWire virtual routing for internal audio connections.
Refer to the software's help documentation for detailed instructions on using the control panel.
5.3 Supported Software
The MAYA44 eX is compatible with most major Digital Audio Workstations (DAWs) and audio software that support ASIO, WDM, and DirectSound drivers. Included software bundles may feature:
- inTone 2 ESI Edition by Audified
- GK Amplification 2 LE
- ampLion Free
6. Maintenance
To ensure the longevity and optimal performance of your ESI MAYA44 eX, follow these maintenance guidelines:
- Keep Clean: Regularly clean the exterior of the card and its connectors with a soft, dry cloth. Avoid using liquid cleaners or solvents.
- Avoid Dust: Keep your computer case clean and free of dust, as excessive dust can lead to overheating and component failure.
- Handle with Care: When installing or removing the card, handle it by the edges to avoid touching the electronic components.
- Environmental Conditions: Operate the device within recommended temperature and humidity ranges to prevent damage.
7. Troubleshooting
If you encounter issues with your MAYA44 eX, consider the following troubleshooting steps:
- No Sound/Input:
- Verify that the drivers are correctly installed and updated.
- Check all cable connections to ensure they are secure.
- Confirm that the correct input/output devices are selected in your operating system's sound settings and your DAW.
- Ensure volume levels are appropriately set in the control panel and your software.
- Noise/Interference:
- Noise can sometimes be introduced by other internal computer components (e.g., video cards, power supplies). Try moving the MAYA44 eX to a different PCIe slot if available.
- Ensure all audio cables are of good quality and properly shielded.
- Check for ground loops by ensuring all connected equipment shares a common ground.
- Installation Issues:
- Ensure the card is fully seated in the PCIe slot.
- Confirm your operating system is compatible with the latest drivers.
- Software Not Recognizing Card:
- Make sure your DAW or audio application is configured to use the MAYA44 eX's ASIO or WDM drivers.
- Restart the application or computer.
For further assistance, refer to the official ESI Audio website or contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Item Weight | 3.59 ounces |
| Product Dimensions | 5.24 x 5 x 0.79 inches |
| Item Model Number | ESIMAYA44EX |
| Hardware Interface | PCIE x 1 |
| Compatible Devices | Personal Computer |
| Operating System | Windows |
| Number of Channels | 4 In / 4 Out (8 total) |
| A/D Converter | 24-bit / 96 kHz, 102dB(a) |
| D/A Converter | 24-bit / 96 kHz, 108dB(a) |
| Microphone Preamp | Yes, with +48V phantom power |
| Instrument Input | Hi-Z input |
| Connectivity Technology | PCIe |
9. Warranty and Support
Every ESI product, including the MAYA44 eX, comes with a comprehensive 2-year warranty. This warranty covers defects in materials and workmanship under normal use.
For technical support, troubleshooting, or warranty claims, please contact the ESI Audio support team. Our dedicated support staff is available 24/7 and based in the US and Germany to assist with all your after-sales needs.
Online Resources:
- Official ESI Audio Website: www.esi-audio.com
- Product Support Page: Locate the MAYA44 eX on the ESI website for drivers, FAQs, and additional documentation.
- User Guide (PDF): A detailed user guide is available for download at this link.





