popularcvp33 posted Yesterday 12:10 AM
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popularcvp33 posted Yesterday 12:10 AM
Fosi Audio car amplifier 4x100watts $112
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$139
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Fosi Audi has been raising the bar with home audio. Leveraging chip technology to make huge power in a very small form factor. Now they've brought that expertise to automobiles. Never thought I would see a 4 x 100 W car audio amplifier that you could literally hold in your hand.
$139 LIST
$112 w/coupon - no tax, no tariff, FREE shipping
CA30EB20
Premium Chipset Infineon IR4322
With eight years of expertise in amplifier design, Fosi Audio has built a global reputation for compact, powerful, and great-sounding amplifiers. The CA30 is Fosi's first car amplifier. It brings our home audio technology and tuning experience to the car audio world- making your in-car listening more enjoyable.
SINAD≥80dB
THD+N≤0.008%
SNR≥100dB
Noise Floor≤200μV
Description
4 Channel Car Audio Amplifiers: 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
https://fosiaudio.com/products/fosi-audio-ca30
$139 LIST
$112 w/coupon - no tax, no tariff, FREE shipping
CA30EB20
Premium Chipset Infineon IR4322
With eight years of expertise in amplifier design, Fosi Audio has built a global reputation for compact, powerful, and great-sounding amplifiers. The CA30 is Fosi's first car amplifier. It brings our home audio technology and tuning experience to the car audio world- making your in-car listening more enjoyable.
SINAD≥80dB
THD+N≤0.008%
SNR≥100dB
Noise Floor≤200μV
Description
4 Channel Car Audio Amplifiers: 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
https://fosiaudio.com/products/fosi-audio-ca30
Community Notes
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Deal Details
Community Notes
About the Poster
Fosi Audi has been raising the bar with home audio. Leveraging chip technology to make huge power in a very small form factor. Now they've brought that expertise to automobiles. Never thought I would see a 4 x 100 W car audio amplifier that you could literally hold in your hand.
$139 LIST
$112 w/coupon - no tax, no tariff, FREE shipping
CA30EB20
Premium Chipset Infineon IR4322
With eight years of expertise in amplifier design, Fosi Audio has built a global reputation for compact, powerful, and great-sounding amplifiers. The CA30 is Fosi's first car amplifier. It brings our home audio technology and tuning experience to the car audio world- making your in-car listening more enjoyable.
SINAD≥80dB
THD+N≤0.008%
SNR≥100dB
Noise Floor≤200μV
Description
4 Channel Car Audio Amplifiers: 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
https://fosiaudio.com/products/fosi-audio-ca30
$139 LIST
$112 w/coupon - no tax, no tariff, FREE shipping
CA30EB20
Premium Chipset Infineon IR4322
With eight years of expertise in amplifier design, Fosi Audio has built a global reputation for compact, powerful, and great-sounding amplifiers. The CA30 is Fosi's first car amplifier. It brings our home audio technology and tuning experience to the car audio world- making your in-car listening more enjoyable.
SINAD≥80dB
THD+N≤0.008%
SNR≥100dB
Noise Floor≤200μV
Description
4 Channel Car Audio Amplifiers: 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
https://fosiaudio.com/products/fosi-audio-ca30
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13 Comments
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Our community has rated this post as helpful. If you agree, why not thank cvp33
The Infineon IR4322 is a high-performance, 2-channel integrated Class D audio amplifier chipset designed to deliver high-quality sound with minimal heat, often utilized in compact, high-efficiency audio applications. It is frequently highlighted as a core, premium component in specialized audio equipment, such as the Fosi Audio CA30 car amplifier.
SPECS:
Design: Integrated 2-channel analog input Class D audio amplifier in a small 7x7 mm PQFN44 package.
Performance: Capable of delivering up to 100W x 2 output.
Efficiency: High-efficiency design (around 88%) that often allows for operation without a mechanical heatsink in typical music playback, reducing system size.
Protection Features: Integrated self-resetting protection for overcurrent, over-temperature, and under-voltage.
Audio Quality: Designed for low distortion and high-fidelity sound, featuring clip and fault reporting.
Car Audio: Used in compact 4-channel amplifiers to provide high-power, low-distortion sound.
Home Audio: Suitable for home theater systems, powered speakers, and docking stations.
The IR4322 is part of a family (including the IR4321) that integrates a PWM controller and digital audio MOSFETs to achieve a high power-to-size ratio.
https://www.youtube.com/watch?v=bycYfpN
https://www.youtube.com/watch?v=bycYfpN
Just watched the test video. 650watts X 2 bridged @ 2ohms…..That's amazing.
CA30EB20
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Tripath completely changed the game in the early 2000's with their "Class T" chips. Texas Instruments introduced a competing technology shortly after and they're in almost everything now, including both desktop and this Fosi amp.
Good for consumers, honestly.
Just watched the test video. 650watts X 2 bridged @ 2ohms…..That's amazing.
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