1. Introduction
The FiiO E17K Alpen 2 is a versatile portable headphone amplifier and Digital-to-Analog Converter (DAC) designed to enhance your audio experience. It features a robust build and intuitive controls, making it suitable for various audio setups, including use with computers as an external sound card.
Key features include:
- USB audio decoding, functioning as an external sound card.
- High-quality DAC (TI PCM5102) and op-amp (TI OPA1622, OPA1642+LMH6643) for superior audio performance.
- Intuitive scroll wheel for menu navigation and volume control.
- Multiple input options: Coaxial digital input and a dual-function line in/out port.
- Standard Mini USB interface for digital audio transfer and battery charging.
- Built-in rechargeable lithium battery for portable use.
Figure 1: FiiO E17K Alpen 2 USB DAC Headphone Amplifier.
2. Setup
2.1. Charging the Device
Before initial use, fully charge the FiiO E17K. Connect the device to a computer's USB port or a USB power adapter using the provided Mini USB cable. The charging indicator on the device will show charging status.
2.2. Connecting to a Computer (USB DAC Mode)
- Connect the FiiO E17K to your computer using the Mini USB cable.
- The device will be recognized as an external sound card. For optimal performance, especially for DSD decoding, install the FiiO ASIO driver (available on the official FiiO website).
- Select the FiiO E17K as the audio output device in your computer's sound settings.
2.3. Connecting Audio Sources
- USB Input: Connect to a computer or compatible digital audio player via the Mini USB port for digital audio input.
- Coaxial Input: Use a coaxial cable to connect to digital audio sources with a coaxial output.
- Line-In: Connect analog audio sources (e.g., smartphones, portable music players) to the 3.5mm line-in port. This port also functions as a line-out.
2.4. Connecting Headphones
Plug your headphones into the 3.5mm headphone output jack on the FiiO E17K.
Figure 2: Top view of the FiiO E17K with input/output ports.
3. Operating Instructions
3.1. Power On/Off
Press and hold the O/EXIT button to power the device on or off.
3.2. Input Selection
Press the INPUT button to cycle through available input sources (USB, Coaxial, Line-In).
Figure 3: Front view of the FiiO E17K display and control buttons.
3.3. Volume Control
Rotate the multi-functional scroll wheel on the side of the device to adjust the volume level. A short press on the scroll wheel typically confirms selections within menus.
3.4. Menu Navigation
The scroll wheel is used for navigating through the device's menu options. Rotate to scroll and press to select.
3.5. Gain Settings
The FiiO E17K offers adjustable gain settings to match various headphone impedances and listening preferences. These settings are typically accessible through the device's menu and may include options such as 0dB, 6dB, and 12dB.
3.6. Tone Controls (Bass/Treble)
Adjust bass and treble levels via the menu to fine-tune the sound to your preference. Adjustments can typically be made in increments, often ranging from -10 to +10.
Figure 4: Vertical view highlighting the scroll wheel.
4. Maintenance
- Keep the device dry. Avoid exposure to moisture or liquids.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Avoid extreme temperatures. Do not expose the device to direct sunlight or very cold environments.
- Protect the screen from scratches. The device may come with pre-installed screen protectors, and additional ones might be included.
- Store the device in a safe place when not in use to prevent physical damage.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound or very low volume |
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| Distorted sound |
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| Device not recognized by computer |
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| Battery not charging |
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6. Specifications
| Feature | Detail |
|---|---|
| Model | E17K |
| Manufacturer | FiiO |
| Product Dimensions | 4.1 x 2.5 x 0.5 inches (10.4 x 6.35 x 1.27 cm) |
| Item Weight | 3.88 ounces (110 grams) |
| DAC Chip | TI PCM5102 |
| USB Receiver | SA9027 |
| Op-Amp | TI OPA1622, OPA1642+LMH6643 |
| Supported USB Audio | Up to 96 kHz/32bit, DSD decoding (with ASIO driver and SACD plugin) |
| Inputs | Mini USB, Coaxial, 3.5mm Line-In |
| Outputs | 3.5mm Headphone Out, 3.5mm Line-Out |
| Battery | Rechargeable Lithium |
7. Warranty and Support
FiiO products typically come with a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official FiiO website.
For technical support, driver downloads, or further assistance, please visit the official FiiO support page or contact their customer service directly. Keep your purchase receipt and product serial number handy when seeking support.
Official FiiO Website: www.fiio.com
