Balanced Dual-Mode Class-D Power Amplifier!
The versatile Fosi Audio ZA3 2CH amplifier breathes new life into your audio system. This feature-rich amplifier suits both traditional stereo listening and advanced audiophile setups. The key feature of the ZA3 is its dual-mode functionality.
In stereo mode, it delivers robust power to drive two passive speakers for a clear and detailed listening experience. The real highlight is the ability to switch to mono mode. This offers two potential advantages: the full amplifier power can be directed to a single speaker for louder, more dynamic sound, or two ZA3 units can be used in mono mode to enhance stereo separation with a wider soundstage.

User Voices Amplify and Shape Innovations
Behind every innovation is a story. The development of the ZA3 amplifier is one such example, where users are at the center. After the V3 amplifier launched, extensive feedback came from dedicated audiophiles. They expressed the desire for an even better amplifier based on the V3.
TI TPA3255 Amplifier Chip
Delivers outstanding sound and extremely low distortion across the entire audio band with Class-D efficiency.
Advanced Heat Dissipation
Improved cooling through a larger chassis, full-body heat sink, and side ventilation with dust protection covers.
Digital and Analog Modules
The optimized circuit board layout shields key audio modules from interference, ensuring purer sound.

Towards Perfection Together: The Making of the ZA3
The ZA3 is more than just a product; it is the result of the combined efforts of Fosi Audio and our users. We take pride that every customer contributes to this amplifier. From the balanced XLR input to mono mode support, every feature of the ZA3 is designed to provide audiophile listeners with an authentic sound experience. At Fosi Audio, we believe true innovation comes from listening to the heart, driven by shared passion and pursuit. ZA3 is our commitment to excellence and a shared audio legend we write together with you.

12V Trigger Sync Interface
Smooth synchronization with other devices for easy one-click power management to unify your audio system operation. (3.5 mm stereo trigger cable)

Aluminum Alloy
Fine sandblasting and smooth beveled edges give the product a high-quality, exquisite texture and premium appearance.

Logarithmic Potentiometer
Helps achieve fine volume tuning that matches the hearing characteristics of the human ear.
High Power and High Fidelity!
Features
- Balanced Dual-Mode Class-D Amplifier
- Applications: Stereo and Mono
- Output Power: Stereo 2 x 155W; Mono 1 x 235W
- Input: RCA, XLR, 6.3 mm jack; Output: Stereo, Mono
- Frequency Response: 20 Hz - 20 kHz
- Amplifier Topology: TI TPA3255 Chip
- Impedance: 2-8 Ohm
Dimensions
- Dimensions (D x W x H): 154.9 x 183.9 x 50.8 mm
Scope of delivery
- 1 x Fosi Audio ZA3
Suitable accessories (Not included in the delivery.)
- Pronomic stage XFXM-0.5 microphone cable XLR 0.5 m black
- Stagecaptain HR-604 BK Audio Rack
- Fosi Audio LC30 VU Amplifier/Speaker Switch Orange
- Fosi Audio P3 HiFi Tube Preamplifier
- Fosi Audio ZD3 HiFi HDMI ARC DAC Preamplifier
- Dynavox Perfect Sound Flex Speaker Cable Pair 3m
- Pronomic SLS-282L HiFi Speaker Stands + Rack Set
Specification
- Product number 00112797
- Colour Black
- Power (Watts) 235
- Outputs Cinch / RCA, Klemmanschlüsse für Lautsprecher
- Inputs 6.3mm Klinke, Cinch / RCA, XLR
Reviews
| 5 Stars |
|
1 |
| 4 Stars |
|
0 |
| 3 Stars |
|
0 |
| 2 Stars |
|
0 |
| 1 Star |
|
0 |
A verification of the ratings has taken place as follows: Only customers who are registered in our online store and have actually purchased the product from us can submit a rating for the item in the customer account.
Variant Fosi Audio ZA3 Mono/Stereo HiFi Amplifier 2x Set
This rating has been translated automatically. Original language
Is to be recommended .shipping service provider poor does not even drive through the street but gives parcel directly in the parcel shop
Questions about product
No questions have yet been asked about this article.
Financing
ConsorsFinanz Finanzierung
- 6 to 72 months term
- 0% financing for 12,49 € per month
- More information on financing
| 3 Year warranty | |
| 30 Day Money Back | |
| Price Match Guarantee | |
| Over 2.000.000 satisfied customers |
The hotline is currently not manned. You can reach us again on Wednesday, 20.05.2026 at 09:30.
| Tuesday | 09:30 - 18:00 | |
| Wednesday | 09:30 - 18:00 | |
| Thursday | 09:30 - 18:00 | |
| Friday | 09:30 - 18:00 | |
| Saturday | 09:30 - 13:30 | |
| Monday | Closed |
Different opening times |









