JBL Concert A704 – 1000W 4-Channel Compact Amplifier | Adjustable HPF/LPF | Auto Turn-On | Compatible with Speakers, Tube Subwoofers & Subwoofers

Upgrade your in-car audio experience with the JBL Concert A704, a compact yet powerful 1000W 4-Channel Amplifier engineered for clean, distortion-free, and high-output sound. Perfect for powering speakers, tube subwoofers, and conventional subwoofers, this amplifier delivers the signature JBL clarity and punch your music deserves.

⭐ Key Features

🔊 High-Power 1000W Output

Delivers strong, dynamic audio performance with enough power to run:

• Door speakers

• Component speakers

• Tube subwoofers

• Traditional subwoofers

Ideal for both mild upgrades and heavy bass systems.

🎚 Adjustable High-Pass & Low-Pass Filters (HPF/LPF)

Fine-tune your system for optimal audio clarity:

• High-Pass Filter for speakers

• Low-Pass Filter for subwoofers
  Allows perfect sound separation and clean frequency delivery.

⚡ Auto Turn-On Technology

Smart signal-sensing feature turns the amplifier ON automatically when sound input is detected—ideal for vehicles with OEM head units.

📦 Compact Footprint Design

Small, space-saving body for easy installation under seats, behind panels, or inside limited spaces—without compromising power.

🔌 Flexible Connectivity

Supports multiple configurations:

• 4 speakers

• 2 speakers + 1 subwoofer

• Tube woofer setups

• Bridged mode for more power

Works seamlessly with both aftermarket and many factory stereos.

🛡 Premium JBL Build Quality

Engineered for long-term durability with:

• Overheat protection

• Overload protection

• Clean signal flow and reduced distortion

⭐ Why Choose the JBL Concert A704?

• Impressive 1000W performance in a compact body

• Highly versatile for speakers & subwoofers

• Clear, powerful JBL sound signature

• Smart auto turn-on for OEM integration

• Adjustable filters for perfect tuning

• Built for audiophiles and daily drivers

📦 What’s in the Box

• 1 × JBL Concert A704 4-Channel Amplifier

• User manual

• Warranty information

• Mounting hardware