The FiiO IMP XLR-4 is a passive impedance adapter that lets a speaker power amplifier drive balanced headphones: speaker wire goes into its gold-plated binding posts, and a voltage-dividing circuit soaks up excess power and hiss before the 4.4 mm and 4-pin XLR headphone jacks. It's for speaker-amp owners, not a plug converter.
Who the FiiO IMP XLR-4 is for
-
Speaker-amp owners: FiiO built it specifically for power amplifiers, so an integrated or power amp with speaker binding posts can drive your balanced headphones directly.
-
Sensitive headphones on big amps: The voltage-dividing circuit absorbs surplus power and lowers the amp's noise floor, the two problems behind hiss and driver damage on bare speaker taps.
-
Mixed 4.4 mm and XLR collections: Both balanced jacks share one box, so headphones on either a 4.4 mm or a 4-pin XLR cable connect without stacking another adapter.
-
FiiO EA13 desk setups: FiiO names its EA13 power amplifier and JT7/FT7 over-ear headphones as matching partners.
-
Skip it if: you only need to change a plug, such as fitting a 4.4 mm cable into an amp's 4-pin XLR headphone output; this box takes speaker-level input from binding posts, so a simple pin adapter is the right tool.
FiiO IMP XLR-4 key specs
-
Type: Passive power-amplifier-to-headphone impedance adapter
-
Circuit: Voltage divider (absorbs excess amp power, lowers noise floor)
-
Input: 4 gold-plated copper binding posts (4 mm banana) for amplifier speaker outputs
-
Outputs: 4.4 mm balanced + 4-pin XLR balanced headphone jacks
-
Headphone impedance: 16–300 Ω
-
Amplifier power: Below 300 W
-
Housing: Aluminum alloy (EMI shielding, heat dissipation)
-
Dimensions: Approx. 90 × 69.5 × 34.5 mm (excluding feet)
FAQ
Will this work with my existing 4.4mm balanced headphone cable?
Yes, when the goal is driving those headphones from a speaker power amplifier. Plug the cable into the IMP XLR-4's 4.4mm jack and run speaker wire from the amp's speaker outputs to its gold-plated binding posts. It is not a plug converter, so it won't adapt a 4.4mm cable to an amplifier's 4-pin XLR headphone output; a simple pin adapter does that job.
Does it change the sound or add resistance?
It lowers the level, by design. A voltage-dividing circuit absorbs the amplifier's excess power and reduces its noise floor before the signal reaches your headphones, which is how it tackles the hiss and the risk of damage that come with driving headphones straight from a speaker amp. FiiO does not list an attenuation figure, so turn the amplifier down before connecting and raise the volume gradually.
Does it come with warranty?
Yes. We sell genuine brand-new FiiO stock with full manufacturer warranty, 45-day returns, and free US shipping.
TonePier stocks genuine, brand-new FiiO units. Your order ships free within the US, and our 45-day return policy covers you if it doesn't match your gear.
