--- product_id: 593516485 title: "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" brand: "fosi audio" price: "1385 zł" currency: PLN in_stock: true category: "Fosi Audio" url: https://www.desertcart.pl/products/593516485-za3-balanced-stereo-amplifier-home-audio-component-mini-2-channel store_origin: PL region: Poland --- # 235W max mono power Balanced XLR/TRS input Advanced heat dissipation 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 **Brand:** fosi audio **Price:** 1385 zł **Availability:** ✅ In Stock ## Summary > 🎶 Small Box, Monster Sound — Elevate Your Audio Game Now! ## Quick Answers - **What is this?** 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 by fosi audio - **How much does it cost?** 1385 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/593516485-za3-balanced-stereo-amplifier-home-audio-component-mini-2-channel) ## Best For - fosi audio enthusiasts ## Why This Product - Trusted fosi audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Next-Level Cooling:** Upgraded chassis with side vents and dust covers ensures stable, high-power performance without overheating. - • **Dual-Mode Powerhouse:** Switch effortlessly between 155W stereo and a booming 235W mono output for ultimate audio flexibility. - • **Custom Sound Sculpting:** Swap op-amps to tailor your audio signature—unleash your inner audiophile with endless tonal possibilities. - • **Pro-Grade Connectivity:** Balanced combo inputs (XLR & 1/4" TRS) slash noise and interference for crystal-clear sound. - • **Audiophile-Approved Components:** Premium TPA3255 Class-D chip with Japanese & German capacitors delivers pristine clarity and ultra-low distortion. ## Overview The Fosi Audio ZA3 is a compact yet powerful 2-channel amplifier featuring dual stereo/mono modes with up to 235W output, balanced XLR/TRS inputs for noise-free connectivity, and premium audiophile-grade components. Its advanced heat dissipation design ensures stable performance, while swappable op-amps let you customize your sound. Perfect for desktop, home theater, and bookshelf speakers, it delivers exceptional value and high-fidelity sound in a sleek metal chassis. ## Description Buy 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 online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. ## Features - 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 155W, 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 150μV, 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CLP4T5L7 | | Best Sellers Rank | #10,843 in Electronics ( See Top 100 in Electronics ) #23 in Home Audio Amplifiers | | Brand Name | Fosi Audio | | Customer Reviews | 4.6 4.6 out of 5 stars (1,122) | | Item Dimensions | 15.5 x 18.4 x 5.1 centimeters | | Item Weight | 1.2 Kilograms | | 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 | | Output Power | 235 Watts | | Part Number | ZA3 | | Specification Met | RoHS | | Unit Count | 1 Count | | Voltage | 48 Volts | ## Product Details - **Item dimensions L x W x H:** 15.5 x 18.4 x 5.1 centimeters - **Manufacturer:** Fosi Audio - **Maximum supply voltage:** 48 Volts (DC) - **Minimum supply voltage:** 24 Volts (DC) - **Voltage:** 48 Volts ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/51XgZUlMEQL.jpg) ## Questions & Answers **Q: Is it possible to use the trigger out from the Fosi Audio ZD3 to two pieces of ZA3 amplifiers?** A: Yes, use a dual 3.5mm male splitter cable to trigger the ZA3 to switch on synchronously. **Q: How to set up a system using two ZA3 units in mono mode?** A: - 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. **Q: ZA3 recommendations for replacing op-amps in mono mode?** A: If you're using RCA mode, please replace only the right op-amp. For XLR mode, swap the right and XLR channel op-amps. **Q: No front light on ZA3 though there is light on the ac adapter.** A: Long press the volume button for 2 seconds to power it on. **Q: The power on LED light on my ZA3 is dead.** A: 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. ## Frequently Bought Together - 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 - VANDESAIL XLR Cables, 3ft 2 Pack Microphone Cable, XLR Male to Female Balanced Microphone Cord 3 pin, 3 Foot Short mic Cord Oxygen-Free Copper (OFC) Nylon Braided --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/593516485-za3-balanced-stereo-amplifier-home-audio-component-mini-2-channel](https://www.desertcart.pl/products/593516485-za3-balanced-stereo-amplifier-home-audio-component-mini-2-channel) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-03*