Fosi AudioZA3 Balanced Stereo/Mono Amplifier HiFi with TPA3255 Chips, Mini Audio Amp Monoblock with XLR RCA Inputs and 12V Trigger-in for Desktop Bookshelf Passive Speakers with 48V5A Power SupplyClimatePartner certified

Fosi AudioZA3 Balanced Stereo/Mono Amplifier HiFi with TPA3255 Chips, Mini Audio Amp Monoblock with XLR RCA Inputs and 12V Trigger-in for Desktop Bookshelf Passive Speakers with 48V5A Power SupplyClimatePartner certified

Q: Is it possible to use the trigger out from the Fosi Audio ZD3 to two pieces of ZA3 amplifiers?

Yes, use a dual 3.5mm male splitter cable to trigger the ZA3 to switch on synchronously.

Q: How to set up a system using two ZA3 units in mono mode?

- Connect the RCA (XLR) cables to the right-channel RCA (XLR) input ports of the two ZA3 units, and link the speaker wires to the right-channel binding posts.

Q: ZA3 recommendations for replacing op-amps in mono mode?

If you're using RCA mode, please replace only the right op-amp. For XLR mode, swap the right and XLR channel op-amps.

Q: No front light on ZA3 though there is light on the ac adapter.

Long press the volume button for 2 seconds to power it on.

Q: The power on LED light on my ZA3 is dead.

Check if the LED is misaligned with the front panel hole, especially if the op-amp was recently changed. Misalignment could cause the LED not to be visible through the case.

Product ID: 593574160

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Details

Item dimensions L x W x H
15.5 x 18.4 x
Voltage
48 Volts
Manufacturer
Fosi Audio
Maximum supply voltage
48 Volts (DC)
Minimum supply voltage
230 Volts

🔊235W max power (Mono mode)

🔗Balanced XLR/TRS combo input

❄️Advanced heat dissipation system

Frequently Bought Together

Fosi Audio ZA3 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Mono Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply

VANDESAIL XLR Cables, 3ft 2 Pack Microphone Cable, XLR Male to Female Balanced Microphone Cord 3 pin, 3 Foot Short mic Cord Oxygen-Free Copper (OFC) Nylon Braided

Description

🎧 Elevate your desktop sound game with power, precision, and pro-level polish.

CUSTOM SOUND LAB - Swap op-amps to personalize your audio signature and stand out in any audiophile circle.
COOL UNDER PRESSURE - Enhanced ventilation and dust covers keep your amp running stable during marathon listening sessions.
DUAL MODE POWERHOUSE - Switch effortlessly between 180W stereo and 235W mono for tailored sound dominance.
PRO GRADE CONNECTIVITY - Balanced XLR/TRS inputs plus 12V trigger-in for seamless integration and noise-free audio.
AUDIOPHILE APPROVED COMPONENTS - TPA3255 chip with premium Japanese and German parts ensures crystal-clear, low-distortion sound.

The Fosi Audio ZA3 is a compact, high-performance stereo/mono amplifier featuring the advanced TPA3255 Class-D chip, delivering up to 235W in mono mode. It offers balanced XLR/TRS inputs and a 12V trigger for professional connectivity, premium audiophile-grade components for superior sound clarity, and an upgraded cooling system for sustained power output. Its unique op-amp rolling feature allows customizable sound tuning, making it ideal for desktop or bookshelf passive speaker setups.

Specifications

Manufacturer	Fosi Audio
Part number	ZA3
Item Weight	1.75 kg
Product Dimensions	15.49 x 18.39 x 5.08 cm; 1.75 kg
Item model number	ZA3
Colour	Black
Material	Aluminium
Voltage	48 Volts
Wattage	235 watts
Item Package Quantity	1
Plug profile	Surface Mount
Specification met	FCC
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Is it possible to use the trigger out from the Fosi Audio ZD3 to two pieces of ZA3 amplifiers?

How to set up a system using two ZA3 units in mono mode?

ZA3 recommendations for replacing op-amps in mono mode?

No front light on ZA3 though there is light on the ac adapter.

The power on LED light on my ZA3 is dead.

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