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  • 5 VIDEOS
Replacing operational amps in different situations of ZA3Fosi Audio
  • 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
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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

4.6 out of 5 stars 839 ratings

Sustainability features

This product has features recognized as more sustainable by certifying organizations.
Carbon impact
Carbon emissions from the lifecycle of this product were measured, reduced and offset.
As certified by
ClimatePartner certified

ClimatePartner certified

The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reducing emissions.

Certification number

ZK5TB8
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Save 5% at checkout Terms
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Purchase options and add-ons

About this item

  • Dual-Mode Innovation: This new generation mini amplifier offers both stereo and mono modes, adapts flexibly to your diverse needs, allowing seamless mode switching. In stereo mode, it delivers a robust output of up to 180W, while in mono mode, the power soars to a maximum of 235W. Pair two ZA3 units in mono configuration to create a powerful audio system, significantly enhancing your listening experience
  • Richer Connectivity: Debut amplifier with balanced input and trigger in, the ZA3 features a balanced combo audio signal input connector supporting both XLR and 1/4" TRS plugs. This design minimizes interference and reduces noise floor. The 12V trigger-in connector enables synchronization with other devices, streamlining the process of turning on/off without individual operations
  • Audiophile-Grade Components: The ZA3 features the TPA3255 high-end Class-D amp chip and utilizes premium Japanese NCC, ELNA, and German WIMA capacitors, and Japanese Sumida inductors for exceptional audio quality. With a SINAD rating of up to 89dB, an SNR of up to 106dB, and a low noise floor of only 150¦ÌV, it delivers exceptional clarity and low distortion
  • Advanced Heat Dissipation: Based on V3's groundbreaking heat dissipation design, we upgraded ZA3's cooling system by featuring a larger chassis, moving vents to the sides, and adding dust covers to achieve better ventilation for a sustained and stable high power output
  • Enhanced Scalable Fun: Personalize your audio experience with the op-amp rolling feature! The ZA3 stocks five swappable op-amps for left and right channel outputs, balanced input, and subwoofer output. Experiment with compatible DIP8 dual op-amps such as Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4558, LM4562, LME49720HA, etc. to fine-tune your sound to perfection
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Product information

Technical Details

Brand ‎Fosi Audio
Manufacturer ‎Fosi Audio
Model ‎ZA3
Part Number ‎ZA3
Voltage ‎48 Volts
Wattage ‎235 watts
Batteries included ‎No
Batteries Required ‎No
Connector Type ‎auxiliary, xlr
Mounting type ‎Surface Mount
Does it contain liquid? ‎No
Includes rechargable battery ‎No
Manufacturer ‎Fosi Audio
Language ‎English
Item model number ‎ZA3
Product Dimensions ‎15.49 x 18.39 x 5.08 cm; 1.75 kg
ASIN ‎B0CLP4T5L7

Additional Information

Date First Available Oct. 24 2023
Customer Reviews
4.6 out of 5 stars 839 ratings

4.6 out of 5 stars
Â鶹Çø Rank

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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

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Sustainability features

This product has features recognized as more sustainable by certifying organizations.

Carbon impact

Carbon emissions from the lifecycle of this product were measured, reduced and offset.

As certified by
ClimatePartner certified

From the brand

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  3. »·±£³¡¾°Í¼

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Product Description

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Stereo Amplifier Home Audio

Merchant video
Amplifying Your Voice, Shaping Our Innovation

Amplifying Your Voice, Shaping Our Innovation

At Fosi Audio, behind every innovation, there's a story. The birth of the ZA3 amplifier is just such a story, centered around our users. After the launch of the V3 amplifier, we gathered innumerable feedback from passionate audiophiles. They expressed a desire for us to develop an even better amplifier based on V3.

Input: RCA, XLR, ?¡±TRS; Output: Stereo, Mono

SNR¡Ý106»åµþ; THD<0.006%; SINAD: 89dB

Frequency Response: 20Hz-20kHz (¡À0.1dB)

Rated Power Output: Stereo 155W*2 @4¦¸; Mono 235W @4¦¸

12V Trigger Sync Interface

12V Trigger Sync Interface

Smooth synchronization with other devices for easy one-click power management, unifying your audio system's operation.

Aluminum Alloy and One-Piece Molded Chassis

Aluminum Alloy and One-Piece Molded Chassis

Delicate sandblasting and smooth beveled edges, exuding a premium, exquisite texture and high-end appeal.

ZA3

Comparison Chart

2.0 CH Amp

Type

2.0 CH Amp

155W x 2 / 235W x 1

MAX Power Output

300W x 2

RCA+XLR

Input

RCA

Passive SPK +Sub-out

Output

Passive SPK +Pre-out

Treble& Bass Control

<0.006%

THD

<0.003%

¡Ý106»åµþ

SNR

¡Ý110»åµþ

2.0 CH Amp

Type

2.0 CH Amp

155W x 2 / 235W x 1

MAX Power Output

300W x 2

RCA+XLR

Input

RCA

Passive SPK +Sub-out

Output

Passive Speakers

Treble& Bass Control

<0.006%

THD

¡Ü 0.3%

¡Ý106»åµþ

SNR

¡Ý 90dB

2.0 CH Amp

Type

Bluetooth 2.0 CH Amp

155W x 2 / 235W x 1

MAX Power Output

300W x 2

RCA+XLR

Input

Bluetooth + RCA

Passive SPK +Sub-out

Output

Passive/Active SPK

Treble& Bass Control

<0.006%

THD

¡Ü 0.005%

¡Ý106»åµþ

SNR

¡Ý108»åµþ

2.0 CH Amp

Type

Headphone Amp+Preamp

155W x 2 / 235W x 1

MAX Power Output

-

RCA+XLR

Input

Bluetooth + RCA

Passive SPK +Sub-out

Output

RCA+3.5mm+AUX

Treble& Bass Control

<0.006%

THD

¡Ü 0.02%

¡Ý106»åµþ

SNR

¡Ý103»åµþ

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