This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.
Fosi Audio CA30 4-Channel Class D AmplifierPremium Chipset Infineon IR4322Backed by eight years of amplifier design experience, Fosi Audio has gained a global reputation for creating compact amplifiers with impressive power and sound quality. The CA30 marks Fosi's first step into car audio, applying our home audio technology and tuning knowledge to deliver a more enjoyable in-car listening experience.
Home Audio Fidelity Reimagined for the Road.Featuring audio performance that surpasses others in its class for a genuine upgrade in listening enjoyment.
Higher Efficiency and Lower HearIt outputs 100W per channel into 4Ω, and when bridged, it delivers 320W, making it well suited for a 4Ω subwoofer.
Easily Hidden Under SeatsAt just 7.3 x 3.9 x 1.7 inches, it takes up virtually no cabin space.
Born for Most VehiclesCompatible with vehicles with a 10-16V supply voltage.
Built-In Protection CircuitsProtection against overheating, short circuits, overvoltage and undervoltage, plus reverse polarity safeguards.
Carefree ListeningIncludes power, protection, and clipping indicators.
Product Details4-Channel Car Audio Amplifiers The Class D 4-channel layout supports both stereo operation and bridged configurations for flexible system design. An Infineon IR4322 chip delivers clean, full-range audio to your vehicle's speakers with low distortion and reduced heat buildup
HiFi Sound Quality Brings Fosi Audio's home audio engineering into the car audio space. Uses JRC/ST op-amps with THD+N ≤0.008%, SNR ≥100dB, and an ultra-low noise floor ≤200μV for performance that exceeds typical amplifiers in this category
88% High Efficiency & Bridgeable The Class D design keeps heat low while producing 100W x 4, and bridged mode delivers 320W x 2 @ 4Ω for subwoofer applications. A REM wire allows synced power on/off with your head unit, while the adjustable HPF/LPF crossover spans 50–250 HzSized at 7.3" x 3.9" x 1.7", it fits easily under seats or in other tight spaces. Works with 10–16V DC gasoline vehicles, including sedans, SUVs, trucks, MPVs, Jeeps, and vans for straightforward installation
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 A CNC aluminum finned heatsink helps maintain lower temperatures for stable sound during extended use. Built-in protection covers overheating, short circuits, overvoltage, undervoltage, and reverse polarity, while LED indicators provide quick status updates.
Installation Notes1. 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.
Specifications
Amplifier chip: Infineon IR4322 Op-amps: JRC NJM4580E/ ST TJM4558CDT RMS Power@4Ω: 100Wx4 RMS Power@2Ω: 160Wx4 Bridge Power@4Ω: 320Wx2 Frequency Response: 10Hz-40kHz Low Pass Frequency Crossover: 50Hz-250Hz High Pass Frequency Crossover: 50Hz-250Hz Power/Protection Indicator: Blue / Red Clipping Indicator: Yellow Damping Coefficient (100Hz @10W): ≥140 Input Sensitivity: 0.75 – 8V Interference@1kHz: ≥60dB
SNR: >100dB SINAD: ≥80dB Remaining Noise: ≤200μV THD@5W: ≤ 0.008% Fuse: 30A×2 (Internal)
What‘s in the box?
Fosi Audio CA301 User Manual Screws 30A Fuse2 8-pin Ribbon CableWrenches
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.