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.

Desertcart Logo

Deliver to Bolivia

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

🎧 Elevate your sound game—because your speakers deserve the ZA3 advantage!

COOL UNDER PRESSURE - Upgraded ventilation with side vents and dust covers ensures stable, high-power performance without overheating.
DUAL MODE POWERHOUSE - Switch effortlessly between stereo (180W) and mono (235W) modes to match your audio setup and maximize impact.
CUSTOM SOUND SCULPTING - Swap op-amps to tailor your audio signature—perfect for the discerning ear craving personalized sonic perfection.
PRO GRADE CONNECTIVITY - Balanced combo inputs (XLR & 1/4" TRS) slash noise and interference for crystal-clear sound every time.
AUDIOPHILE APPROVED COMPONENTS - Premium TPA3255 Class-D chip with Japanese and German capacitors delivers pristine clarity and ultra-low distortion.

The Fosi Audio ZA3 is a compact, dual-mode stereo amplifier delivering up to 235W in mono mode with advanced balanced inputs and premium audiophile components. Featuring superior heat dissipation and customizable op-amps, it’s engineered for flawless, high-fidelity sound in home theater and desktop setups.

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Bs.3709

Duties & taxes incl.

Boliviastore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

View all Trustpilot reviews

Number of Channels	2
Package Type	Cardboard Box
Output Power	235 Watts
Mounting Type	Surface Mount
Voltage	230 Volts
Specification Met	FCC
Item Dimensions	6.1 x 7.24 x 2 inches

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 SupplyClimatePartner certified

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions