GO bar - Receiver iFi Audio - Free user manual and instructions

Product Type	Balanced USB DAC/Amp (Receiver)
Brand	iFi Audio
Model	GO bar
Input	USB-C, up to 32-bit/384kHz PCM, DSD256, MQA Full Decoder
Headphone Outputs	3.5mm Single-Ended, 4.4mm Balanced
Power Output (Balanced)	475mW @ 32Ω, 7.2V @ 600Ω
Power Output (Single-Ended)	200mW @ 32Ω, 5.6V @ 600Ω
THD+N (Balanced)	<0.012% (0.5mW/2.0V @ 600Ω)
THD+N (Single-Ended)	<0.04% (100mW/2.7V @ 16Ω)
Frequency Response	20Hz - 45kHz (-1dB)
Dimensions	65 x 22 x 13.2 mm (2.6" x 0.9" x 0.5")
Weight	28.5 g (1.0 oz)
Power Consumption	<4W max
Warranty	12 months
Sound Effects	XSpace, XBass+ (individually or together)
Digital Filters	Bit-Perfect (Cyan), Standard (Red), Minimum (Yellow), GTO (White)
iEMatch	Reduces output level for sensitive IEMs
Turbo Mode	+6dB gain (press + and - buttons for 2s)
Volume Sync	Syncs with source device (enable via settings button >8s)
LED Indicators	White: PCM/DSD sample rate; Blue: XSpace; Orange: XBass+; MQA colors
Compatibility	Windows, macOS, iOS, Android (USB-C or OTG)
Cleaning	Wipe with a soft, dry cloth
Safety	High output can damage hearing; use with caution, especially with sensitive headphones
Repairability	No user-serviceable parts; contact iFi Audio support for issues

Frequently Asked Questions - GO bar iFi Audio

How do I enable XSpace or XBass+ on the GO bar?

Press the Settings button (5) briefly to cycle through: Off > XSpace > XBass+ > XSpace + XBass+. The LED indicates the mode: Blue for XSpace, Orange for XBass+.

How do I change the digital filter?

Press and hold the Settings button (5) for >2 seconds until the MQA LED flashes. Then press the + or - buttons to cycle through filters: Bit-Perfect (Cyan), Standard (Red), Minimum (Yellow), GTO (White). Press Settings again to confirm.

What is iEMatch and how do I use it?

iEMatch reduces the output level to match sensitive In-Ear Monitors (IEMs). Slide the iEMatch switch (3) to the ON position to activate. This prevents distortion and hiss with high-sensitivity earphones.

How do I enable Turbo Mode for extra gain?

Press the + and - volume buttons together for at least 2 seconds. Turbo Mode adds 6dB gain. Confirmation: 2 white LEDs then 6 light up for 2 seconds. To disable, repeat the same action (6 LEDs go to 2).

Can I sync the GO bar volume with my phone or computer?

Yes. Press the Settings button (5) for more than 8 seconds to toggle volume sync on or off. When on, the source device will display volume changes and its controls also work. Default is off.

What do the LED colors mean on the GO bar?

White LEDs indicate sample rate (e.g., 44.1/48kHz), Blue for XSpace, Orange for XBass+. MQA playback shows Green (MQA), Blue (MQA Studio), or Magenta (Original Sample Rate). The volume level is shown by the number of white LEDs lit (0-6).

How do I clean the GO bar?

Use a soft, dry cloth to wipe the exterior. Do not use liquids or abrasive cleaners. Ensure the USB-C port and headphone jacks are free of dust.

Is the GO bar compatible with my smartphone?

Yes, it works with smartphones via USB-C or OTG adapter (for micro-USB). It is compatible with iOS (with Lightning to USB Camera Adapter) and Android. For reliable connection, use iPhone 5 or higher and ensure battery is above 70%.

What power output can I expect from the 4.4mm balanced output?

The balanced output delivers 475mW at 32Ω and 7.2V at 600Ω. This is sufficient for most high-impedance headphones. For very sensitive IEMs, use iEMatch to reduce output.

What is the warranty period for the GO bar?

The GO bar comes with a limited 12-month warranty from the date of purchase. For warranty claims, contact iFi Audio support or your retailer.

USER MANUAL GO bar iFi Audio

Thank you for purchasing the bar from the GO series. The bar is a balanced USB audio DAC amplifier.

1. Audio format, frequency and sound effects LED The LED colour scheme indicates the current sampling frequency and audio format received by the CO bar from the music source. Sound effect modes are also indicated.

LED Mode

White 44.1/48kHz

White 98.2/96kHz

White 176.4/192kHz

White 352.8/384kHz

White DSD 64/128

White DSD 256

Sound effects

LED Status

Blue XSpace

Orange XBass

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2. MQA and Digital filter LED

MQA:

Green MDA

Blue MOA Studio

Magenta. Original Sample Rate ^4

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Digital Filter for PCM Playback:

LED Mode

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White GTD

Pard STD

Yellow MIN

Off DSD playback

3. iEMatch switch

iEMatch reduces the output level, so that even the most

sensitive In-Ear-Monitors (IEMs) can be matched to the GO bar.

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4. Volume control and gain

To increase volume, press the - button, and to decrease it, press the - button. Volume level is briefly displayed on the GO bar while pressing one of the volume buttons, shown by the number of white LEDs on at a time - from none to 6.

The increase or decrease of volume can be synchronised with the volume of the mobile phone/computer. The connected device will indicate a change of volume on its display if synchronisation is on, and the device's volume controls can additionally be used to adjust volume. The GO bar's volume buttons are still operational.

By default, the synchronisation feature is off. To switch this on or off, press the settings button (5) for > 8s. On is indicated by the 6 white LEDs switching on in sequence from LED 1 and 6 to the centre. Off is indicated by the 6 white LEDs switching off in the opposite direction.

Turbo Mode increases the gain by 6dB. To switch this on or off, press the + and - volume buttons together for ≥ 2s. Turbo Mode on is indicated by 2 white LEDs increasing to 6 lighting up at the same time for 2s. Normal gain is indicated by 6 white LEDs diminishing to 2 lighting up for 2s.

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5. Settings and Digital filter mode

This button cycles between:

Off > XSpace > XBass+ > XSpace and XBass+ (short click). Please refer to item 1 for sound effects LED indications.

Digital filter setting mode (Icomp press >2s). Please see below.

Digital filter

To enter digital filter setting mode, press and hold the button for a 3s. The MOA LED will flash with the currently set digital filter colour (as shown in item 2). Press the + or - buttons (4) to change the filter selection. A short press on the settings button (5) will select and exit the filter setting mode.

The following 4 digital filters are available:

"BP" (Cyan) Bit-Perfect: no digital filtering, no pre or post

ringina

'STD' (Red) Standard, modest filtering, modest pre and

post ringing

'MIN' (Yellow) Minimum phase, slow roll-off, minimum pre

and post ringing

'GTO' (White) Gibbs Transient-Optimised: upsampled to

352/364kHz, minimum filtering, no pre

ringing, minimum post ringing

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6. S-Balanced 3.5mm headphone output

For connecting 3.5mm headphones. This is a single-ended output.

7. Balanced 4.4mm headphone output

For connecting balanced 4.4mm headphones. This is a fully balanced output.

8. USB-C input

The USB-C socket plays up to 32-bit 304kHz, has full MQA

decoding, and native DSD up to DSD256.

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Specifications

input:

Forma

PCM 304kHz

D50 256

LXD 3446Hz

MAYAIIHOSO

DAC:

Headphone Outputs:

Balanced: 1.4mm

14821

Power Output:

Balance: 475mWg320:7.29g6000

CREAL 200MW321:5.86e601

Output impedance:

B015n:502 515

LPRPL 2.12

SPIN:

Bilifi:3; (5208)

DNR

Balance 2015-04

Lufal:

THD + N:

Balance: c0.012% (0.5mW/2.0V g 600Ω)

L=HAL: c0.04% [100mW 27V x 16Ω]

Frequency Response: 710-45kV (-100)

Power Consumption: <40% max

Dimensions: 65 x 22 x 13.2 mm (2.6" x 0.9" x 0.5")

Net weight: 28.5g (1.0 oz)

Limited Warranty: 12 months ^**

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- 2017年1月1日

lfi-audio.com