JBL Stage 6004 4-Channel Full-Range Car Amplifier (560W Peak)

Entry-Level Luxury & Value: Signature JBL Dynamic Audio Performance

Upgrade your in-car listening experience with clear, punchy sound and signature JBL acoustic engineering. The JBL Stage 6004 is a high-efficiency 4-channel full-range car amplifier designed to add crisp power and dynamic realism to your aftermarket or factory sound system. Featuring a compact footprint with low noise and low distortion circuitry, this amplifier effortlessly powers four door speakers or drives a combined setup with front speakers and a bridged subwoofer.

Technical Performance & Key Features

Clean Multi-Channel Power Output

Engineered for efficient system powering, the Stage 6004 delivers 60 Watts RMS per channel into 4 Ohms and 70 Watts RMS into 2 Ohms. For systems requiring dedicated low-end bass, the rear channels can be bridged to push 140 Watts RMS at 4 Ohms straight to a subwoofer enclosure, making it an extremely versatile all-in-one amplifier solution.

Independent Variable Crossover & Bass EQ Controls

Take full charge of your sound signature. The Stage 6004 features selectable High-Pass (HPF) and Low-Pass (LPF) crossovers adjustable from 32 Hz to 320 Hz across independent front and rear channels. It also includes an onboard Bass EQ circuit (0dB to +12dB at 45Hz) to add an extra punchy kick to your bass response whenever needed.

Flexible Dual Input Topology (RCA & Speaker Level)

Whether you are building around an aftermarket touchscreen or retaining your factory OEM head unit, the Stage 6004 integrates seamlessly. It accepts both low-level RCA preamp inputs (0.2V – 5V) and high-level speaker inputs (0.5V – 12V) using included harness adapters, eliminating the need for external line-output converters.

Comprehensive Onboard Protection System

Built to withstand severe automotive power environments, the Stage 6004 features multi-stage onboard protection circuits against thermal overload, short circuits, under-voltage (<9V), and over-voltage (>16V), ensuring smooth and reliable long-term performance.

Technical Specifications

• Amplifier Topology: Class AB / 4-Channel Full-Range

• Peak Power Output: 560 Watts Total Peak

• RMS Power Output @ 4 Ohms: 60 Watts x 4 Channels

• RMS Power Output @ 2 Ohms: 70 Watts x 4 Channels

• RMS Power Output (Bridged 4 Ohms): 140 Watts x 2 Channels

• Frequency Response: 20 Hz – 20,000 Hz (±1dB)

• Total Harmonic Distortion (THD): < 1%

• Signal-to-Noise Ratio: > 75 dB

• Input Sensitivity: Low-Level (0.2V – 5V) / High-Level (0.5V – 12V)

• Crossover Modes: Selectable HPF / LPF / Full (32 Hz – 320 Hz, 12dB/octave)

• Bass Boost: 0dB to +12dB @ 45Hz

• Fuse Rating: 15A x 2 (30A Total)

• Physical Dimensions: 19.4 cm x 14.5 cm x 5.0 cm

Warranty Details

• 1-Year Official Brand Warranty: This product comes backed by a standard 1-Year (12 Months) official brand warranty covering manufacturing defects and internal circuitry malfunctions under proper rated power conditions.

• Secure Invoice Processing: Your official purchase tax invoice acts as your direct warranty identification track. Keep your invoice copy safe for authorized brand claims.

Important Policy Notice (Strict No-Return)

• Strict No-Return Policy: Please verify your vehicle's physical mounting space, power wiring layout, and speaker impedance ratings before ordering. Once dispatched from our facility, this amplifier is completely ineligible for returns, exchanges, or refunds.

• Warehouse Verification Protocol: Every JBL Stage 6004 amplifier unit passes a physical and seal validation check at our warehouse to ensure it is 100% genuine and free from defects before final dispatch.

Frequently Asked Questions

Can I run this amplifier directly off my car's factory company-fitted stereo?

Yes! The JBL Stage 6004 includes high-level speaker input harnesses, allowing your installer to tap directly into your factory radio's speaker wires without purchasing an external high-to-low converter.

Can this amplifier power two front door speakers and one subwoofer simultaneously?

Yes. You can run Channels 1 and 2 in stereo mode to power your front component or coaxial speakers (60W RMS x 2 @ 4 Ohms), while bridging Channels 3 and 4 together to drive a single 4-Ohm subwoofer with 140W RMS.

Why Choose JBL Automotive Audio?

• Signature JBL Sound: Tuned to deliver neutral midranges, clean treble clarity, and punchy low-end impact.

• Compact Space-Saving Design: Slim chassis profile fits effortlessly under car seats, inside boot cavities, or behind trim panels.

• Reliable Automotive Build: Built using high-grade components designed to tolerate interior heat cycles and road vibrations.

Technical Integration & Sourcing Assurance

• 100% Genuine, Authenticated Inventory Sourcing: We source directly through verified distribution paths to ensure you receive 100% original, brand-new JBL products with intact serial numbers.

• Expert Technical System Integration: Confused about wiring gauge requirements, fuse sizes, or speaker matching? Our internal technical team is always ready with clear answers.