Product Description
The JBL Stage A6004 is a compact 4-channel Class D car amplifier designed to improve the power, clarity, and overall performance of automotive audio systems. Built for efficient operation and flexible installation, this amplifier delivers reliable multi-channel output for door speakers, component speakers, or small system upgrades.
With 60 watts RMS x 4 channels and the ability to bridge into 140 watts x 2 channels, the Stage A6004 provides versatile power for different car audio configurations. Its wide frequency response, adjustable crossover controls, and bass boost function help users fine-tune their sound for cleaner highs, stronger midrange, and improved low-frequency performance.
Speaker-level inputs allow easier integration with compatible factory audio systems, while the compact chassis makes installation practical in tight vehicle spaces. Designed without unnecessary extras, the A6004 focuses on efficient amplification, dependable sound output, and clean system integration for everyday automotive listening.
Key Features
- 4-Channel Class D Amplifier: Efficient amplifier design delivers strong multi-channel power for automotive speaker upgrades.
- 60W x 4 RMS Power Output: Provides clean and reliable power for front and rear speaker systems.
- Bridgeable Output: Supports 140W x 2 bridged power for flexible system configurations.
- Adjustable Crossovers: Low-pass and high-pass crossover controls help optimize speaker performance.
- Speaker-Level Inputs: Allows integration with compatible factory and aftermarket audio systems.
Real Benefits
- Improved Sound Clarity: Adds cleaner amplification for better detail, volume, and speaker control.
- Flexible Car Audio Setup: Works for 4-speaker systems or bridged configurations depending on system needs.
- Compact Installation: Small amplifier footprint makes it easier to fit in limited vehicle spaces.
- Customizable Audio Tuning: Crossover and bass boost adjustments allow better sound matching with your speakers.
Use Cases
- Factory Audio Upgrades: Ideal for adding stronger amplifier power to compatible factory speaker systems.
- Aftermarket Speaker Systems: Suitable for powering upgraded coaxial or component speakers.
- Front and Rear Speaker Power: Provides four-channel output for balanced cabin audio performance.
- Bridgeable Audio Builds: Can be bridged for higher output in select two-channel configurations.
RMS Power Output: 60W x 4 Channels
Peak Power Output: 140W x 4 Channels
Power Output at 2 Ohms: 70W x 4 Channels
Bridged Power Output: 140W x 2 Channels
Minimum Impedance: 2 Ohms Stereo, 4 Ohms Bridged
Frequency Response: 20 Hz – 20 kHz
Total Harmonic Distortion (THD): 1%
Signal-to-Noise Ratio: 75 dB
Input Voltage: 14.4V
Amplifier Class: Class D
Built-in DSP: No
Remote Control: No
Bass Boost: 0 – 12 dB @ 45 Hz
Fan Cooled: No
Speaker-Level Inputs: Yes
Preamp Outputs: No
Low-Pass Crossover Frequency: 32 – 320 Hz
Low-Pass Slope: 12 dB/Octave
High-Pass Crossover Frequency: 32 – 320 Hz
High-Pass Slope: 12 dB/Octave
Fuse Rating: 30A
Width: 7-5/8 in
Height: 2 in
Depth: 5-3/4 in
How many channels does the JBL Stage A6004 have?
The JBL Stage A6004 is a 4-channel amplifier designed for powering multiple speakers in a car audio system.
Can the JBL Stage A6004 be bridged?
Yes, the amplifier supports bridged operation with 140W x 2 channels at 4 ohms.
Does this amplifier have speaker-level inputs?
Yes, the Stage A6004 includes speaker-level inputs for easier integration with compatible factory audio systems.
Does the amplifier include built-in DSP?
No, the JBL Stage A6004 does not include built-in DSP.
What type of crossover controls are included?
The amplifier includes low-pass and high-pass crossover controls from 32 Hz to 320 Hz with a 12 dB/octave slope.
Shipping Information
Free standard shipping is available within the 48 contiguous United States.
Free Shipping Details
Free shipping does not apply to APO/FPO addresses, Alaska, Hawaii, Puerto Rico, or other U.S. territories.
For expedited or alternative shipping options, contact Crawford's Superstore during business hours, Monday through Friday, 10:00 AM to 5:00 PM Eastern Time, at 1-800-817-8795.
Freight Shipping for Large Items
Large or heavy products, including most televisions and oversized electronics, may require freight shipping. Freight shipments can take additional time to arrive. Contact us for an estimated delivery timeframe when ordering a large or heavy item.
What to Expect With Freight Delivery
- Someone must be present: Freight deliveries require someone to receive and sign for the shipment.
- Delivery appointment: The carrier will contact you to arrange delivery to your door or the lobby area of an apartment or condominium.
- Delivery hours: Freight deliveries are generally scheduled Monday through Friday between 9:00 AM and 5:00 PM.
- Unpacking and installation: Freight drivers do not unpack, install, or set up equipment and do not remove old equipment or packaging.
- Keep the packaging: Original manufacturer packaging may be required if the product needs to be returned or transported later.
Crawford's Superstore Return & Refund Policy
Eligible products may be returned within 30 days of the delivery date, subject to the conditions and exclusions below.
1. How to Start a Return
All returns require a Return Merchandise Authorization (RMA) before the product is shipped back.
- Request an RMA: Contact our support team at info@crawfordssuperstore.com.
- Pack the product securely: Use the original manufacturer's packaging and include all accessories, manuals, and supplied components. Double-boxing is strongly recommended.
- Check the package: Make sure the product is complete and safely packaged before shipping it back. Incomplete or improperly packaged returns may be subject to additional fees.
2. Return Shipping Responsibility
- Return Shipping: The buyer is responsible for return shipping costs unless the product has been verified as defective.
- Original Shipping Costs: Original shipping charges are non-refundable. If the product was sold with free shipping, the actual shipping cost paid by Crawford's Superstore may be deducted from the refund.
- Returns Over $75: A trackable shipping service and shipping insurance for the full product value are required. Crawford's Superstore is not responsible for products lost or damaged during return transit.
3. Refunds & Restocking Fees
Factory-Sealed Products:
Brand-new, factory-sealed products may not incur a restocking fee, subject to inspection and verification.
Restocking Fee:
Change-of-mind returns or products returned with an opened box or signs of use may be subject to a restocking fee
of up to 15% to account for diminished resale value.
4. Return Inspection & Refund Processing
- Inspection: Returned products are inspected and the product condition and serial number are verified before a refund is approved.
- Refund Processing: Approved refunds are generally processed within 5–7 business days to the original payment method. Your financial institution may require additional time for the credit to appear.
5. Non-Returnable Products
The following products cannot be returned after the factory seal has been broken or the product has been used:
- Projectors & Projection Lamps: Non-returnable once opened, unsealed, or lamp/light-source hours have been used.
- Large Displays: Televisions and monitors 37 inches and larger must remain factory sealed to qualify for a return.
- Computers & Software: Opened computers and opened software are non-returnable.
- Custom Products: Custom cut-to-length audio or video cables are non-returnable.
- Missing Product Identifiers: Products with missing, removed, or altered UPC codes or serial numbers are non-returnable.
6. Serial Number Verification
For fraud prevention and product verification, Crawford's Superstore records serial numbers for applicable electronics before shipment.
The serial number on any returned product must match the serial number recorded when the original order was shipped. Returns containing a different, altered, or missing serial number may be denied.
7. Defective Products
If a product is verified as defective, Crawford's Superstore will provide a prepaid return shipping label and send a new replacement unit at no additional cost once the defect has been confirmed.
