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

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

Product ID: 593516485

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
24 Volts (DC)
Voltage
48 Volts

⚡235W max power output

🔗Balanced XLR & 1/4" TRS inputs

❄️Advanced heat dissipation system

€ 292.06

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Power your passion with precision and style — the Fosi ZA3 amps your audio game!

CUSTOMIZABLE SOUND TUNING - Swap op-amps to personalize your audio signature and stand out in your soundscape.
NEXT LEVEL COOLING DESIGN - Enhanced chassis and side vents keep your amp cool under pressure for marathon listening sessions.
DUAL MODE POWER FLEXIBILITY - Switch effortlessly between 155W stereo and 235W mono modes for tailored audio dominance.
AUDIOPHILE APPROVED COMPONENTS - Premium TPA3255 chip with Japanese and German capacitors deliver pristine clarity and ultra-low distortion.
PRO GRADE BALANCED CONNECTIVITY - XLR and 1/4" TRS inputs slash noise and interference for crystal-clear sound.

The Fosi Audio ZA3 is a compact yet powerful stereo amplifier featuring dual-mode operation with up to 235W output, balanced XLR and 1/4" TRS inputs for noise-free connectivity, and premium audiophile-grade components. Its advanced heat dissipation system ensures stable performance, while swappable op-amps allow personalized sound tuning, making it ideal for desktop, home theater, and high-end passive speaker setups.

Specifications

ASIN	B0CLP4T5L7
Best Sellers Rank	#11,766 in Electronics ( See Top 100 in Electronics ) #21 in Home Audio Amplifiers
Brand Name	Fosi Audio
Customer Reviews	4.5 4.5 out of 5 stars (1,314)
Item Dimensions	15.5 x 18.4 x 5.1 centimeters
Manufacturer	Fosi Audio
Material Type	metal
Maximum Output Power	235 watts
Maximum Supply Voltage	48 Volts (DC)
Minimum Supply Voltage	24 Volts (DC)
Model	ZA3
Mounting Type	Surface Mount
Number of Channels	2
Number of Items	1
Number of Packs	1
Output Power	235 Watts
Part Number	ZA3
Specification Met	RoHS
Unit Count	1 Count
Voltage	48 Volts

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