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Direct Supply from Chinese Factory | 4-Channel Hi-Fi Car Amplifier
Product Introduction
This 4-channel car power amplifier is professionally designed for car audio modification. Equipped with stable amplifier circuit and brushed aluminum alloy housing, it supports independent 4-channel output and bridge mode. It is compatible with various car models including sedans, SUVs and MPVs with 12V power supply, an ideal choice for audio upgrade and bulk procurement.
Specifications
| Category | Item | Parameter | Remarks |
| Basic Specifications | Product Type | 4-Channel Car Power Amplifier | Used for car audio modification |
| Channels | 4 Channels | Independent output, support paired bridging | |
| Applicable Vehicles | 12V sedans, SUVs, MPVs and other passenger cars | Compatible with most mainstream vehicles | |
| Power Supply | 12V DC | Powered by vehicle battery | |
| Electrical Performance | RMS Power | 80W×4 @ 4Ω | Stable rated power per channel |
| Signal-to-Noise Ratio | ≥93dB | Ultra-low background noise, pure sound quality | |
| Total Harmonic Distortion | ≤0.04% | High sound restoration without distortion | |
| Frequency Response | 10Hz - 30kHz | Full frequency range for rich audio details | |
| Operating Voltage | 10V - 15V DC | Adapt to daily voltage fluctuation | |
| Interface & Protection | Audio Input | 4-CH RCA Input (CH1/CH2/CH3/CH4) | Connect with car radio & DSP |
| Speaker Output | 4 sets of independent terminal blocks | Support bridge mode for higher power output | |
| Power & Control Port | +12V, GND, REM terminal blocks | Low resistance & high current resistance | |
| Safety Protection | Dual built-in fuses | Over-current, short-circuit & overheat protection | |
| Tuning Function | Gain Control | Independent adjustable gain for two groups | Match different audio sources and speakers |
| High Pass Filter (HPF) | 20Hz-250Hz with ON/OFF switch | Remove low frequency for mid & high speakers | |
| Low Pass Filter (LPF) | 32Hz-250Hz with ON/OFF switch | Special low frequency output for subwoofer | |
| Channel Control | Separate adjustment for CH1/CH2 & CH3/CH4 | Custom settings for front & rear speakers | |
| Working Mode | Full Range / HPF / LPF / Bridge Mode | Satisfy multiple audio upgrade solutions |
Main Specifications
- Channels: 4 Channels
- RMS Power: 80W × 4 @ 4Ω
- Signal-to-Noise Ratio (SNR): ≥93dB
- Total Harmonic Distortion (THD): ≤0.04%
- Frequency Response: 10Hz - 30kHz
- Operating Voltage: 10V - 15V
Professional Tuning Functions
Professional Tuning Panel
Comes with 4-channel RCA audio inputs. CH1/CH2 and CH3/CH4 are adjustable separately:
- GAIN: Adjust signal sensitivity to match different car stereos
- HPF (20Hz-250Hz): Cuts low-frequency interference for mid-high range speakers
- LPF (32Hz-250Hz): Outputs pure low-frequency sound for subwoofers
- Mode switch supports full range, high pass and low pass modes
Hardware & Structural Design
Efficient Heat Dissipation
Adopts thickened brushed aluminum alloy shell with multi-fin heat dissipation structure to dissipate heat rapidly, preventing power reduction and overheat protection. Reinforced metal mounting brackets ensure firm installation against vibration during driving.
Key Features
-
Gold-Plated Terminals
Large gold-plated copper terminals for +12V, GND and REM control cable feature excellent conductivity, oxidation resistance and high current resistance. Built-in dual fuses provide protection against overcurrent and short circuit for circuits and vehicle devices.
Four independent gold-plated speaker output terminals (CH1/CH2/CH3/CH4) support BRIDGE mode for boosted power output, perfectly driving subwoofers.
Professional Tuning Panel
Comes with 4-channel RCA audio inputs. CH1/CH2 and CH3/CH4 are adjustable separately:
- GAIN: Adjust signal sensitivity to match different car stereos
- HPF (20Hz-250Hz): Cuts low-frequency interference for mid-high range speakers
- LPF (32Hz-250Hz): Outputs pure low-frequency sound for subwoofers
- Mode switch supports full range, high pass and low pass modes
- Main Specifications
- Channels: 4 Channels
- RMS Power: 80W × 4 @ 4Ω
- Signal-to-Noise Ratio (SNR): ≥93dB
- Total Harmonic Distortion (THD): ≤0.04%
- Frequency Response: 10Hz - 30kHz
- Operating Voltage: 10V - 15V
- Multiple Application Solutions
- 4 Full-Range Channels: Power front and rear four speakers for immersive surround sound.
- Dual Zone Mode: Two groups of channels drive front and rear speakers with HPF enabled for clear vocal performance.
- Speaker + Subwoofer Combo: One group for front speakers, the other working in bridge & LPF mode to drive passive subwoofer.
Key Features
- Hi-Fi Sound Quality: Low distortion and ultra-low background noise deliver transparent vocals and solid bass.
- Reliable Protection: Gold-plated terminals and dual fuses ensure safe and stable operation.
- Flexible Tuning: Adjustable crossover and gain fit different speakers and music styles.
- Durable Build: Integrated aluminum alloy body resists vibration and ensures long-term service life.
- Wide Voltage Adaptation: Works steadily under 10V-15V voltage fluctuation during vehicle start and driving.
- Application
Ideal for original car audio upgrade, 4-door speaker and subwoofer modification. OEM & ODM are available. Suitable for auto repair shops and auto parts wholesalers for domestic and overseas sales.
Business Cooperation Inquiry
We have long been committed to the R&D and production of car audio equipment. We support global clients with diversified cooperation solutions including bulk wholesale, OEM & ODM customization. We accept mixed small-batch orders and large-scale mass orders, providing one-on-one exclusive business support all the time.
Feel free to contact us for product quotations, MOQ, customized solutions, stock information and certification documents. We reply to inquiries promptly and provide product materials & professional industry solutions for free. We sincerely look forward to establishing long-term win-win cooperation with global partners.
