Fosi Audio ZD3 DAC/ Pre Amp + Fosi Audio V3-48V5A MonoBlock Power Amp Package - TOOS
SKU: Fosi Audio ZD3 + Fosi Audio V3-48V5AFosi Audio ZD3 Fully Balanced Desktop DAC/ Pre Amp
Fosi Audio V3-48V5A Mono Monoblock Power Amplifier ( Pair ) - toos
Fosi Audio ZD3 Fully Balanced Desktop DAC
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Features
- High-Performance ES9039Q2M Chip
- XLR Output / Trigger In/Out
- Op-Amp Rolling: SS3602, MUSES02, OPA2134PA
- Perfect Match to ZA3 Amp
High-Performance Digital-to-Analog Audio Converter
The ZD3 is an audiophile-grade balanced stereo DAC meticulously developed by Fosi Audio after thoroughly understanding user needs. It features the ES9039Q2M high-precision DAC chip, delivering rich and superior sound.
- Input: USB, HDMI ARC, Optical, Coaxial, Bluetooth; Output: XLR,RCA
- SNR≥126dB; THD+N<0.00008%
- Bluetooth Codecs: SBC, AAC, aptX, aptX HD


Swappable Op-Amp Design
Easily replaceable DIP8 dual discrete op-amps, meeting your pursuit of a personalized audio experience, such as LME49720, NE5532, MUSES02, SS3602.

Bypass Mode
The signal bypasses the internal preamp section, providing a fixed output level for direct signal transmission.

Trigger In/Out
Enables synchronized on/off across your audio setup, automating system control for seamless operation.

Perfect Match to ZA3 Amp
In the same series and form factor, the ZD3 provides seamless integration with the ZA3, unlocking audio details and clarity.
Description
Flagship Desktop DAC: A fully balanced digital-to-analog converter preamp with multiple inputs and outputs. Fosi Audio's first DAC to support HDMI ARC input and comes equipped with a high-performance ES9039Q2M chip to deliver rich and superior sound.
Premium Chipset: The ZD3 features the chipset consisting of XMOS XU316+ES9039Q2M+QCC3031+LME49720. It supports high audio resolution, with a maximum capability of DSD512 and PCM 32bit/768kHz sampling rates, providing unparalleled clarity and depth.
Versatile & Flexible: The ZD3 offers comprehensive connectivity, supporting inputs like Bluetooth, USB, OPT, COAX, HDMI ARC, and balanced XLR/RCA outputs. This flexibility allows you to customize your audio system to suit various setups and scenarios
Ease of Use: The ZD3 adopts a 1.5-inch OLED display, remote control, preamp bypass switch, and 12V trigger in/out interfaces, allowing synchronized power on/off with other home audio devices, all for a good user experience.
Family Design: Featuring the same design language as the ZA3 amplifier: compact and exquisite appearance and audiophile-grade components for high performance and excellent sound quality. Pair it with the ZA3 to create a robust home audio system.
Fosi Audio V3 Mono Monoblock Power Amplifier
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Engineered for Audiophiles - Optimal Choice for Home Audio Systems
In 2023, following the launch of the V3 stereo amplifier, we received numerous valuable suggestions and feedback from our global audio lovers. We listen intently, record diligently, and develop with dedication, ultimately striving to transform your suggestions and ideas into reality—the V3 mono.
- Input: RCA, XLR, ¼" TRS; Output: Passive Speaker (supports banana plug or bare wire connection)
- SINAD: XLR--101dB; RCA--93dB; SNR: ≥123dB
- Rated Power Output: 48V/5A 240W@4Ω


NICHICON Caps, Japanese
Ensure superior sound clarity, longevity, and stable electrical performance, enhancing the fidelity of audio reproduction.

WIMA Caps, German
Provide exceptional sound quality and signal stability, greatly enhancing the audio experience.

Sumida Inductor, Japanese
Offers superior signal purity and noise reduction, elevating the amplifier's sound performance.

ELNA Caps, Japan
Ensure enhanced audio clarity and stability, contributing to a richer sound experience.
Description
Mini Monoblock Amplifier: Crafted for HiFi audiophiles, the V3 Mono allows you to drive a single passive speaker with one amp, delivering up to 240W @4Ω of rated power. It offers the flexibility to build your home audio 2/3/4/5-channel system effortlessly. The V3 Mono can serve as a power amplifier for multi-channel AVRs, complementing the output power to easily drive high-power speakers in home theater systems.
Innovative Cutting-Edge Technology: Fosi Audio has achieved a technological breakthrough through independent research and development by applying PFFB (Post-Filter Feedback) technology to the V3 Mono for the first time. This effectively overcomes the common load dependency issues of Class-D amplifiers, improving distortion and enhancing frequency response, thereby significantly enhancing sound quality and performance.
Audiophile-Grade Components: The V3 Mono incorporates the high-end TPA3255 Class-D amp chip, paired with well-known components such as Japanese Nichicon filter capacitors, ELNA capacitors, German WIMA capacitors, and Japanese Sumida inductors, etc. Additionally, it features an upgraded four-layer PCB. This combination not only ensures high power output but also achieves a THD as low as 0.006%, a SINAD of 101dB, and an SNR of 123dB. As a result, the fidelity and quality of the audio are assured.
Advanced Cooling: Utilizing Fosi Audio's pioneering full-body heat dissipation design, the TPA3255 amplifier chip is placed at the bottom and tightly integrated with the chassis, allowing heat to be effectively dissipated through the casing. Coupled with dual side ventilation holes that enhance internal airflow, this ensures the V3 Mono can deliver stable, high-power output over extended periods.
User-Friendly Design: Supports both XLR/¼" TRS balanced and RCA single-ended(with gain selection) inputs, with an easy toggle switch for selection. Additionally, it features an auto power/signal sensing mode to enhance energy efficiency. You can also customize your preferred sound signature by replacing the stock NE5532 op-amps, supporting DIP8 dual discrete op-amps such as Sparkos SS3602, MUSES02, OPA2604, Burson V5i, V6, V7, and more.
V3 mono stereo audio component mini power monoblock amplifier 2 channel amplifier single channel 2/2.1/3/4/5 channel class d amp tpa3255 for home theater desktop outdoor bookshelf Tower floorstanding passive speakers ZA3.
Fosi Audio ZD3 Fully Balanced Desktop DAC
Chip Set: XMOS XU316 + ESS 9039Q2M + QCC3031 + LME49720
Maximum Sampling Rate:
USB: PCM 32bit/768kHz; DSD512
OPT/COAX: PCM 24bit/192kHz
Bluetooth: PCM 24bit/48kHz
Output Level:
XLR: 5Vrms RCA: 2.5Vrms
Input Mode:USB, HDMI (ARC), Coaxial, Optical, Bluetooth
Output Mode: XLR, RCA
SINAD: 126dB
THD: ≥120dB
THD+N: <0.00008%
Dynamic Range: ≥123dB
Noise Floor: ≤2μV
Bluetooth Version: 5.0
Bluetooth Connection Distance: ≥13m
Bluetooth Transmission Audio Format: aptX HD, aptX, AAC, SBC
Power Supply: DC 12V 1.5A
USB Compatible Devices: Windows 7, 8, 8.1, 10, 11 (Some require drivers; please refer to the user manual)Mac OS X, Linux (No driver required)
Fosi Audio V3-48V5A Mono Monoblock Power Amplifier
Channel : 1.0
Amplifier Chip : Texas Instruments TPA3255
Input : RCA, XLR, ¼" TRS
Output : Speaker Output (supports banana plug or bare wire connection)
SINAD : XLR: 101dB ; RCA: 93dB
SNR : ≥123dB
Dynamic Range : ≥123dB
THD : <0.006%
Gain : XLR/¼” TRS: 20dB ; RCA: 25dB, 31dB;
Terminal Impedance : 2-8Ω
Rated Power Output : 48V/5A--240W@4Ω ; 32V/5A --100W@4Ω
Frequency Response : 10Hz-30kHz(±0.06dB)
Input Voltage Range : DC 32-48V
Standard PSU : 48V/5A
