








"Fit perfectly and worked exactly as expected — support was excellent."
Kenwood KAC-D3104
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Kenwood KAC-D3104 D Series 600W Max Class D 4-Channel Amplifier
The Kenwood KAC-D3104 is a high-performance Class D 4-channel amplifier that brings Hi-Res Audio capabilities to a remarkably compact design. Engineered to deliver 50 Watts RMS per channel, this amplifier is the ideal solution for drivers looking to upgrade their entire speaker system without sacrificing valuable cabin or trunk space. With advanced Dual Sigma Drive technology and a frequency response reaching 50kHz, it provides the precision and clarity needed for a truly premium listening experience.
Elite Performance Features
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Hi-Res Audio Certified: Features an expanded frequency response that extends to 50kHz, making it perfect for high-resolution audio playback with incredible detail and realism.
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Dual Sigma Drive: This advanced negative feedback circuit acts like an "electronic brake," sensing unwanted speaker movement and stopping it instantly to eliminate distortion and improve sound accuracy.
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Compact "Small Size, Big Power" Design: At just over 7 inches long and 2 inches tall, this amp is extremely versatile and fits into tight spots like under seats or behind dash panels.
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Flexible 4/3/2 Channel Operation: Power four speakers, or bridge the amp to run two speakers and a subwoofer with 150 Watts RMS x 2.
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Signal-Sensing Turn-On: Includes speaker-level inputs that detect an incoming audio signal, allowing for seamless integration with factory radios without needing a separate remote turn-on wire.
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Onboard Sound Tuning: Features independent variable high-pass and low-pass filters (50-200 Hz) and a variable bass boost (0 to +18 dB at 40Hz) on the B-channels to customize your sound.
What’s in the Box?
This amplifier includes the essential hardware for mounting:
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(1) KAC-D3104 4-Channel Amplifier
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(4) Mounting Screws
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(1) Allen Wrench
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Owner's Manual and Warranty Card
Technical Specifications
| Feature | Details |
| Amplifier Class | Class D (High Efficiency) |
| Power Output (RMS) | 50W x 4 @ 4Ω / 75W x 4 @ 2Ω |
| Bridged Power | 150W x 2 @ 4Ω |
| Maximum Power Output | 600 Watts |
| Frequency Response | 20Hz - 50,000Hz (Hi-Res Certified) |
| Signal-to-Noise Ratio | 100 dB |
| Recommended Wiring | 8-Gauge Power and Ground |
| Dimensions (WxHxD) | 6-11/16" x 2-3/16" x 7-3/8" |
- Ships within 1–3 business days from our warehouse
- Tracking included with every order
- Free 30-day returns if it doesn’t work for your setup
- 2-year manufacturer warranty
- Authorized dealer guarantee
- Real installer-backed support before and after purchase

Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Expandable by Design
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
We verify compatibility before you buy, no guesswork.
DIY FRIENDLY IF:
- You're comfortable with basic tools
- You follow provided instructions
PROFESSIONAL INSTALL RECOMMENDED IF:
- Your vehicle requires dash kits or wiring adapters
- You want a turnkey experience
INSTALLATION CREDIT & SUPPORT:
- $75 Installation Credit when purchased online
- Speak to real installers before you buy
- Bring it into one of our locations for install
Why Buying This Here Is Safer Than Anywhere Else
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Verified Vehicle Fit
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Installer Support
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Authorized Products
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Easy Returns
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Physical stores & real installers
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FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
How do I know this stereo or speaker will fit my car?
Select your year, make, and model using the Vehicle Fit Guide at the top of the page. You’ll only see products that are compatible with your exact vehicle setup.
What happens if I order something that doesn’t fit?
You can return or exchange it within 30 days. We’ll help you identify the correct part for your vehicle so you don’t have to guess again.
Are these products brand new and covered by warranty?
Yes — all products are brand new, authentic, and sold as an authorized dealer, which means they include a full manufacturer warranty.
Can you install this for me, or do I need to do it myself?
You can do either. Install it yourself, or use your $75 installation credit at our shop and have it professionally installed by our team.
What if I don’t know what to choose for my car?
Tell us your vehicle and what you want to improve (sound, bass, CarPlay, etc.). We’ll recommend the exact products that fit your car and your budget.
