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.

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.

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.

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.

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.

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Fosi Audio ZA3 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 Supply

Product ID: 593574160

Details

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

🔊235W max mono power

🔗Balanced XLR/TRS inputs

❄️Advanced heat dissipation

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VT96575

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Description

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

DUAL MODE POWERHOUSE - Switch effortlessly between 180W stereo and 235W mono modes to match your audio ambitions.
SEAMLESS SYSTEM SYNC - 12V trigger-in lets your entire setup power on/off in perfect harmony—no extra hassle.
CUSTOM SOUND SCULPTING - Swap out op-amps to tailor your audio signature—because your sound should be as unique as you are.
PRO GRADE BALANCED INPUTS - XLR and 1/4" TRS combo inputs slash noise and interference for crystal-clear sound.
AUDIOPHILE APPROVED COMPONENTS - Premium TPA3255 Class-D chips with Japanese and German capacitors deliver pristine clarity and ultra-low distortion.

The Fosi Audio ZA3 is a compact, high-performance Class-D amplifier delivering up to 180W in stereo and 235W in mono. Featuring balanced XLR/TRS inputs, a 12V trigger for synchronized control, and premium audiophile components, it offers exceptional clarity, low noise, and flexible customization through swappable op-amps. Its advanced cooling design ensures stable, sustained power output, making it a top-tier choice for desktop and bookshelf passive speaker setups.

Specifications

ASIN	B0CLP4T5L7
Best Sellers Rank	7,940 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 21 in Hi-Fi Amplifiers
Brand	Fosi Audio
Country Of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (1,130)
Item Dimensions	15.5 x 18.4 x 5.1 centimetres
Item Weight	1.2 Kilograms
Manufacturer	Fosi Audio
Manufacturer Part Number	ZA3
Material	metal
Maximum Output Power	235W
Maximum Supply Voltage	48 Volts (DC)
Minimum Supply Voltage	230 Volts
Model Number	ZA3
Mounting Type	Surface Mount
Number of Channels	2
Output Power	235 Watts
Package Type Name	Cardboard
Product Warranty	2 years
Specification Met	RoHS
Supply Current	230 Milliamps
Unit Count	1.0 count
Voltage	48 Volts

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VT96575

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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