1. Introduction
The iFi GO blu is a compact, portable Bluetooth DAC (Digital-to-Analog Converter) and headphone amplifier designed to enhance your audio experience. It supports various high-resolution Bluetooth codecs, offering superior sound quality for your wired headphones when connected wirelessly to your smartphone, tablet, or other Bluetooth-enabled devices. This manual provides instructions for setting up, operating, and maintaining your GO blu device.
Image 1.1: The iFi GO blu in use, connected to a pair of over-ear headphones.
2. Package Contents
Before using your iFi GO blu, please verify that all items are present in the package:
- iFi GO blu Portable Bluetooth DAC/Headphone Amplifier
- USB-C to USB-A Charging Cable
- Protective Pouch
- User Manual (this document)
Image 2.1: Illustration of the iFi GO blu and its included accessories.
3. Product Overview
The iFi GO blu features a compact design with essential controls and connectivity options.
3.1. Device Layout
Image 3.1: Angled view of the iFi GO blu, highlighting its compact form factor and volume control.
Image 3.2: Detailed diagram of the iFi GO blu's connections and built-in microphone.
- Volume Knob/Multi-function Button: Controls volume, power on/off, play/pause, track skip, and call management.
- X-Bass/X-Space Button: Toggles sound enhancement features.
- 4.4mm Balanced Headphone Output: For balanced headphone connections.
- 3.5mm Single-Ended Headphone Output: For standard headphone connections.
- USB-C Port: Used for charging and USB DAC input (up to 24-bit/96kHz).
- Built-in Microphone: For hands-free calls.
- Status Indicator LED: Displays power, battery, and Bluetooth status.
4. Getting Started
4.1. Charging the Device
The iFi GO blu is powered by a Lithium Polymer battery. Before first use, fully charge the device using the supplied USB-C to USB-A cable connected to a USB power source (e.g., computer USB port, USB wall adapter).
- Connect the USB-C end of the cable to the GO blu's USB-C port.
- Connect the USB-A end to a power source.
- The Status Indicator LED will show charging status (typically red while charging, off or green when fully charged).
4.2. Bluetooth Pairing
The GO blu supports Bluetooth 5.1 with advanced codecs like aptX Adaptive, LDAC, AAC, and HWA Codec for high-resolution wireless audio.
- Power On: Press and hold the volume knob for approximately 3 seconds to power on the GO blu. The Status Indicator LED will light up.
- Enter Pairing Mode: The GO blu will automatically enter pairing mode when powered on for the first time, or if no device is currently paired. The Status Indicator LED will flash blue. To manually enter pairing mode, press and hold the volume knob for 5 seconds when the device is on.
- Enable Bluetooth on Your Device: On your smartphone, tablet, or computer, go to Bluetooth settings and enable Bluetooth.
- Select 'iFi GO blu': From the list of available devices, select 'iFi GO blu'.
- Confirm Connection: Once paired, the Status Indicator LED will show a solid blue light, indicating a successful connection.
4.3. Connecting Headphones
The GO blu offers both balanced and single-ended headphone outputs.
- For headphones with a 4.4mm balanced connector, plug them into the 4.4mm balanced output jack.
- For headphones with a standard 3.5mm single-ended connector, plug them into the 3.5mm single-ended output jack.
Only connect one pair of headphones at a time.
5. Operation
5.1. Power On/Off
- Power On: Press and hold the volume knob for 3 seconds.
- Power Off: Press and hold the volume knob for 3 seconds.
5.2. Volume Control
Rotate the volume knob to adjust the audio output level. The GO blu's volume control operates independently of your source device's volume, allowing for precise adjustment.
5.3. Playback Control
Use the volume knob as a multi-function button for media playback:
- Play/Pause: Single press the volume knob.
- Next Track: Double press the volume knob.
- Previous Track: Triple press the volume knob.
5.4. Sound Enhancements (X-Bass and X-Space)
The iFi GO blu features analogue sound enhancement modes:
Image 5.1: Explanation of X-Bass and X-Space sound enhancement features.
- X-Bass: An analogue bass boost that enhances low frequencies without muddying the mid-range.
- X-Space: An analogue headphone spatialiser that opens up your music to provide a wider soundstage, simulating a live concert experience.
Press the dedicated X-Bass/X-Space button to cycle through these modes: X-Bass On, X-Space On, Both On, Both Off.
5.5. Hands-Free Calling
The built-in microphone allows for hands-free calls when connected to a smartphone.
- Answer Call: Single press the volume knob.
- End Call: Single press the volume knob during a call.
- Reject Call: Press and hold the volume knob for 2 seconds.
6. Specifications
Detailed technical specifications for the iFi GO blu:
| Feature | Specification |
|---|---|
| Model Name | GO blu |
| Item Model Number | FFIFAGOBLU |
| Connectivity Technology | Bluetooth, USB |
| Wireless Communication Technology | Bluetooth 5.1 |
| Supported Bluetooth Codecs | AAC, aptX, aptX HD, aptX Adaptive, aptX LL, LDAC, LHDC/HWA |
| Headphone Outputs | 4.4mm Balanced Jack, 3.5mm Single-Ended Jack |
| USB Input | USB-C (24-bit / 96kHz) |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 300 Ohm (maximum supported) |
| Control Type | Volume Control, Multi-function Button |
| Built-in Microphone | Yes |
| Battery Type | 1 Lithium Polymer battery |
| Product Dimensions | 2.17 x 1.34 x 0.51 inches (55 x 34 x 13 mm) |
| Item Weight | 4.6 ounces (130 grams) |
| Material | Metal, Plastic |
7. Troubleshooting
If you encounter issues with your iFi GO blu, refer to the following common problems and solutions:
- No Power:
- Ensure the device is fully charged. Connect it to a power source using the USB-C cable.
- Press and hold the volume knob for 3 seconds to power on.
- Cannot Pair via Bluetooth:
- Ensure the GO blu is in pairing mode (Status Indicator LED flashing blue). If not, press and hold the volume knob for 5 seconds.
- Make sure Bluetooth is enabled on your source device and it is within range (typically 10 meters/33 feet).
- Forget the 'iFi GO blu' device from your source device's Bluetooth settings and attempt to pair again.
- Try restarting both the GO blu and your source device.
- No Sound or Low Volume:
- Check that your headphones are securely plugged into the correct output jack (3.5mm or 4.4mm).
- Adjust the volume knob on the GO blu.
- Ensure your source device's volume is also turned up.
- Verify that the GO blu is successfully paired and connected to your source device.
- Sound Distortion or Poor Quality:
- Ensure your audio files are of good quality.
- Move closer to your source device to avoid signal interference.
- Disable X-Bass or X-Space features to see if they are contributing to the distortion, especially with certain headphones or music genres.
- Check for firmware updates on the iFi website, as these can sometimes resolve audio issues.
8. Care and Maintenance
To ensure the longevity and optimal performance of your iFi GO blu, follow these care guidelines:
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using harsh chemicals, cleaning solvents, or abrasive materials.
- Storage: Store the GO blu in a cool, dry place away from direct sunlight and extreme temperatures. Use the provided protective pouch when not in use.
- Water Exposure: The device is not waterproof. Avoid exposure to water, moisture, or high humidity.
- Impact: Protect the device from drops and impacts, which can damage internal components.
- Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in constant use.
9. Warranty and Support Information
For warranty information, product registration, and technical support, please refer to the official iFi Audio website or contact their customer service directly. Keep your proof of purchase for warranty claims.
Manufacturer: Abbingdon Music Research
Website: ifi-audio.com
