Fosi Audio ZA3-48V Balanced Stereo Amplifier

Rs. 20,400.00

Key Features

High-performance Texas Instruments TPA3255 Class-D amplifier.

Dual-mode operation for stereo and mono configurations.

Balanced XLR and unbalanced RCA inputs for flexible connectivity.

6.35mm TRS balanced input support.

Replaceable op-amps for sound customization.

Dedicated RCA output for connecting an active subwoofer.

12V trigger input for synchronized power control.

Enhanced heat dissipation with a side-vented chassis.

Premium internal components for high-fidelity audio reproduction.

Standard warranty provide by OEM
Rs. 20,400.00
Fosi Audio ZA3-48V Balanced Stereo Amplifier
Rs. 20,400.00

Product Description

Dual-Mode Innovation: This new generation mini amplifier offers both stereo and mono modes, and 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, OPA2134PA, OP249, AD827, RM4558, LM4562, LME49720HA, etc. to fine-tune your sound to perfection.

The next generation balanced dual-mode Class-D power amplifier. Fosi Audio's first amplifier supporting both stereo and mono modes.

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, ¼”TRS; Output: Stereo, Mono
  • SNR≥106dB; THD<0.006%; SINAD: 89dB; Frequency Response: 20Hz-20kHz (±0.1dB)
  • Rated Power Output: Stereo 180W*2 @4Ω; Mono 235W @4Ω

TI TPA3255 Amp Chip Integrated

Enabling superior sound and ultra-low distortion across the audio band with Class-D efficiency.

Advanced Heat Dissipation Design

Enhanced cooling with larger chassis, whole-body heatsink, and side ventilation with dust covers.

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

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

Specifications

Brand

Fosi Audio

Model

ZA3-48V

Product Type

Balanced Hi-Fi Power Amplifier

Amplifier Class

Class D

Number of Channels

2.0 Stereo / Mono Mode

Amplifier Chip

Texas Instruments TPA3255

Rated Output Power (Stereo)

155W × 2 @ 4Ω (48V/5A)

Rated Output Power (Mono)

235W × 1 @ 4Ω (48V/5A)

Output Power (Stereo, 32V/5A)

95W × 2 @ 4Ω

Output Power (Mono, 32V/5A)

110W × 1 @ 4Ω

Supported Speaker Impedance

2–8Ω

Frequency Response

20Hz–20kHz (±0.1dB)

Total Harmonic Distortion (THD)

Less than 0.006%

SINAD

89dB

Signal-to-Noise Ratio (SNR)

≥106dB

Dynamic Range

≥106dB

Audio Inputs

RCA, Balanced XLR, 6.35mm (¼-inch) TRS

Speaker Output

Speaker Terminals

Subwoofer Output

RCA (Active Subwoofer)

Trigger Input

12V Trigger

Power Supply

48V DC, 5A

Input Voltage Range

DC 24–48V

Operational Amplifiers

Replaceable Op-Amps

Chassis

Aluminium Alloy

Dimensions (W × D × H)

Approx. 184 × 155 × 51mm

Colour

Black