FiiO E17 Alpen USB DAC Headphone Amplifier User Manual

1. Introduction

The FiiO E17 Alpen is a versatile and compact USB Digital-to-Analog Converter (DAC) and headphone amplifier designed to significantly improve the audio quality from various digital and analog sources. It features multiple input options, including USB, S/PDIF, and a 3.5mm line-in, making it compatible with computers, portable music players, and other audio devices. With its built-in rechargeable battery, the E17 offers portability and extended listening pleasure.

2. Key Features

• Standard Mini USB Interface: Connects to a PC for digital audio transfer and battery charging.
• 3.5mm Two-Channel Headphone Output: Compatible with headphones ranging from 16Ω to 300Ω.
• 3.5mm S/PDIF Input Connector: Receives PCM signals from high-definition players.
• 3.5mm Line-In Interface: Connects to audio output (LO&PO) of audio players.
• 18-Pin Multifunctional Interface: Enables audio and data transfer in conjunction with FiiO L7 line out cable and E9 desktop amplifier (sold separately).
• OLED Display: Provides clear operational information.
• Gain, Balance, and Tone Controls: Allows for personalized audio adjustments.
• Built-in Li-ion Battery: Offers up to 15 hours of operating time with a 3.5-hour recharge time.

3. Package Contents

Please check the package for the following items:

• FiiO E17 Alpen Unit
• Mini USB Cable
• 3.5mm Audio Interconnect Cable
• S/PDIF Coaxial Adapter
• S/PDIF Optical Adapter
• Protective Pouch/Case
• Silicone Bands (for attaching to portable devices)
• Screen Protectors

4. Controls and Indicators

Figure 1: Front view of the FiiO E17 Alpen, showing the OLED display, volume controls, and function buttons.

• OLED Display: Shows current input, sample rate, volume level, battery status, and menu options.
• Power / Exit Button: Long press to power on/off. Short press to exit menu or return to the main screen.
• Menu Button: Enters the settings menu. Press repeatedly to cycle through menu options.
• Input Button: Selects the audio input source (USB, Line-In, S/PDIF).
• Hold Switch: Locks all buttons to prevent accidental operation.
• Volume +/- Buttons: Adjusts the output volume. Also used for navigating menu options and changing settings.

Figure 2: Side view of the FiiO E17 Alpen, highlighting the USB, S/PDIF, Line-In, and headphone output ports.

5. Setup

5.1 Initial Charging

Before first use, fully charge the E17 Alpen. Connect the supplied Mini USB cable to the E17's USB port and the other end to a computer's USB port or a compatible USB wall adapter. The OLED display will indicate charging status. A full charge typically takes about 3.5 hours.

5.2 Connecting to a Computer (USB DAC Mode)

1. Ensure the E17 is powered off.
2. Connect the Mini USB cable from the E17 to an available USB port on your computer.
3. Power on the E17. It should automatically detect the USB connection.
4. On your computer, select the FiiO E17 as the audio output device in your sound settings. For optimal performance, install any necessary drivers from the FiiO website if prompted by your operating system.

5.3 Connecting to Audio Players (Line-In)

1. Use the supplied 3.5mm audio interconnect cable.
2. Connect one end to the headphone output or line-out of your audio player (e.g., MP3 player, smartphone).
3. Connect the other end to the E17's 3.5mm Line-In port.
4. Power on the E17 and press the 'Input' button until 'Line' is selected on the display.

5.4 Connecting to Digital Sources (S/PDIF)

1. Depending on your source device, use either the S/PDIF Coaxial Adapter or the S/PDIF Optical Adapter with a suitable digital cable.
2. Connect the adapter to the E17's 3.5mm S/PDIF input port.
3. Connect the digital cable from your source device (e.g., CD player, TV, game console) to the adapter.
4. Power on the E17 and press the 'Input' button until 'S/PDIF' is selected on the display.

5.5 Connecting Headphones

Plug your headphones into the 3.5mm headphone output jack on the E17. Ensure the connection is secure.

6. Operation

6.1 Power On/Off

Long press the Power / Exit button for approximately 3 seconds to turn the device on or off.

6.2 Volume Adjustment

Use the Volume +/- buttons on the side of the unit to increase or decrease the audio output volume. The volume level will be displayed on the OLED screen.

6.3 Input Selection

Press the Input button repeatedly to cycle through the available input sources: USB, Line-In, and S/PDIF. The currently selected input will be shown on the OLED display.

6.4 Menu Navigation and Settings

Press the Menu button to enter the settings menu. Use the Volume +/- buttons to navigate through the menu options. Press the Menu button again to select an option, and then use Volume +/- to adjust its value. Press the Power / Exit button to exit the menu.

Available menu options typically include:

• Gain: Adjusts the amplification level (e.g., 0dB, 6dB, 12dB) to match your headphones' impedance and sensitivity.
• Bass: Adjusts the bass level (e.g., -10 to +10 in 2dB steps).
• Treble: Adjusts the treble level (e.g., -10 to +10 in 2dB steps).
• Balance: Adjusts the left/right channel balance.
• Sleep Timer: Sets a timer for automatic power-off.
• Display Brightness: Adjusts the brightness of the OLED screen.
• Max Volume: Sets a maximum volume limit.
• Factory Reset: Resets all settings to default.

6.5 Hold Function

Slide the Hold switch to the 'ON' position to disable all buttons, preventing accidental changes to settings or volume during transport or use.

7. Maintenance

• Cleaning: Use a soft, dry cloth to clean the device. Avoid using harsh chemicals or abrasive materials.
• Storage: Store the E17 in a cool, dry place away from direct sunlight and extreme temperatures.
• Battery Care: To prolong battery life, avoid fully discharging the unit frequently. If storing for an extended period, charge the battery to about 50% and recharge every few months.
• Avoid Water: Do not expose the device to water or excessive moisture.

8. Troubleshooting

• No Sound:
  • Check if the E17 is powered on and fully charged.
  • Ensure the correct input source is selected (USB, Line-In, S/PDIF).
  • Verify that headphones are properly connected and functional.
  • Check the volume level on both the E17 and the source device.
  • If using USB, ensure the E17 is selected as the default audio output device on your computer.
• Distorted Sound:
  • Reduce the volume on both the E17 and the source device.
  • Check for loose cable connections.
  • Ensure the audio source is not over-driving the input.
  • Try adjusting the Gain setting on the E17.
• Device Not Powering On:
  • Ensure the battery is charged. Connect to a USB power source.
  • Check if the Hold switch is in the 'OFF' position.
• OLED Display Issues (e.g., dim, screen burn):
  • Adjust the display brightness setting in the menu.
  • If issues persist, contact FiiO customer support.

9. Specifications

10. Warranty and Support

The FiiO E17 Alpen comes with a standard manufacturer's 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, troubleshooting assistance, or service inquiries, please contact FiiO customer support through their official channels.

Official FiiO Website: www.fiio.com