Fosi CA30 Four Channel Car Amplifier
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The CA30 is a high-performance car amplifier manufactured by Fosi Audio, designed for 12V automotive systems to deliver HiFi sound reproduction and amplification. With latest Infineon's automotive-grade Class D amplifier chips, it features a compact heatsink design (186x101x44.2mm), high power output (4x100W@42/4x160W@22), High fidelity(full-range & flat frequency response 10Hz~40KHz), exceptional efficiency (over 88%). It is specifically engineered for audiophiles seeking premium sound quality in automotive entertainment systems. The CA30 features high-pass/low-pass/full-pass filters, enabling flexible configuration as a high-frequency, low-frequency, or full-range speaker system. Its crossover frequencies can be precisely adjusted according to users' preferences. It also supports RCA low-level/high-level inputs (High input with sensing DC offset and auto turn-on function), compatible with most original car head unit systems equipped with RCA line outputs or high-level outputs. Whether you're a car audio enthusiast or audiophile, the CA30 will take you on an extraordinary journey of HiFi music.
Features
- 4 Channel Car Audio Amplifier: Class D 4-channel design supports stereo connection and bridging for flexible system configs. Infineon IR4322 chip delivers clean, full-range sound to drive your vehicle's speakers with low distortion and minimal heat
- HiFi Sound Quality: Brings Fosi Audio's home audio technology to the car audio world. Features JRC/ST op-amps with THD+N ≤0.008%, SNR ≥100dB, and ultra-low noise floor ≤200μV—specifications that outperform standard car amplifiers in its class
- 88% High Efficiency & Bridgeable: Class D design minimizes heat while delivering 100W x 4, and bridgeable mode provides 320W x 2 @ 4Ω for subwoofers. REM wire enables linking on/off with your head unit, while adjustable HPF/LPF crossover (50–250 Hz)
- Compact Universal Fit: Measures 7.3" x 3.9" x 1.7" to fit under seats or tight spaces. Compatible with 10–16V DC gasoline vehicles, including sedans, SUVs, trucks, MPVs, Jeeps, and vans, for easy installation
- Smart Cooling & Protection: CNC aluminum finned heatsink keeps temps low for stable, long-session sound. Built-in protection against overheating, short circuits, over-/under-voltage, and reverse polarity; handy LED indicators keep you informed
Specifications
|
Rated Power Output |
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|
(Tested Voltage 14.4Volts) |
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RMS Power @ 4 ohm : |
100Wx4 |
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RMS Power @ 2 ohm : |
160Wx4 |
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Bridge Power @ 4 ohm : |
320Wx2 |
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Frequency response : |
10Hz-40KHz |
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Low Pass Frequency Crossover : |
50Hz-250Hz |
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High Pass Frequency Crossover : |
50Hz-250Hz |
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Power/Protection : |
Blue / Red |
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Clipping indicator light : |
Orange |
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Damping coefficient (100Hz@10W): |
≥140 |
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Input Sensitivity : |
0.75-8V |
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Interference@1kHz: |
≥60dB |
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Signal Noise Ratio : |
>100dB |
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SINAD: |
≥80dB |
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Remaining noise: |
≤200uV |
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T.H.D +@5W: |
≤ 0.008% |
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Fuse: |
30A x 2(Internal) |
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Dimension(mm)(LxWxH)(Inches) : |
186x101x44.2(7.3x3.9x1.7) |
Support
Notes
- The high-level input supports automatic power on/off. When using a high-level input with DC, the REM connection is not required.
- For dual protection, please install a 60A external fuse on the power cable within 50 cm of the vehicle battery.
- To minimize interference, route power cables and signal cables on opposite sides of the vehicle (e.g., signal cables on the left, power cables on the right).
- Please use properly rated cables. Power and ground cables must be AWG #4, and the REM wire should be AWG #16 to #18.
- Do not connect high-level input and RCA low-level input simultaneously.
- Multiple speakers can be connected in parallel to a single channel. In stereo mode, total impedance per channel must not be lower than 2 Ω; in bridged mode, not lower than 4 Ω.
- Observe correct polarity for all power and audio connections to prevent short circuits or damage to the amplifier and vehicle.
- The CA30 features cooling fins on the top panel. For optimal cooling, please install the amplifier with the fins facing upward, maintain 5–10 cm of clearance, and do not cover the fins during operation.
About
Fosi Audio, established in Shenzhen in 2017 by Ryan Huang, has emerged as a pioneering force in democratizing high-fidelity sound. Guided by four core tenets—Foresight, Openness, Sincerity, and Innovation—the brand has cultivated a distinguished presence across 150+ nations. Renowned for exceptional sonic value and community-driven engineering, Fosi integrates premium components from industry leaders like Texas Instruments. Their philosophy transcends conventional audio retail, offering both refined finished products and bespoke DIY solutions for the discerning enthusiast seeking uncompromised quality without premium pricing.