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B&W ASW4000 Vintage Subwoofers – Professionally Restored – 1-Year Warranty
$1,999
-
- Dimensions (W x H x D): 24.0 x 22.8 x 22.8 inch
- Type: Active
- Positioning: Floorstanding Subwoofer
- Enclosure: Vented Box
- Way system: Single Driver
- Power Output: 450 Watts Continuous
- Frequency Response: 17Hz to 140Hz Adjustable
- Sensitivity: 88 dB
- Driver: 15-inch Long Throw Woofer
- Inputs: RCA Phono, Speaker Level
- Outputs: RCA Phono, Speaker Level
- Weight: 165 lbs (75 kg)
2 in stock
1/ ABOUT
The B&W ASW4000 is one of the most impressive high-performance subwoofers ever produced by Bowers & Wilkins. Designed to complement the prestigious B&W 800 Series loudspeakers, the ASW4000 was engineered to deliver deep, powerful, and highly controlled bass reproduction for demanding audiophile and home theater systems.
Featuring a massive 15-inch long-throw driver and a powerful 450-watt internal amplifier, the ASW4000 is capable of reaching extremely low frequencies while maintaining excellent accuracy and musicality. Its large cabinet volume and carefully tuned vented enclosure allow the subwoofer to produce effortless low-frequency energy that integrates naturally with high-end loudspeaker systems.
Today, the ASW4000 remains highly sought after among audiophiles who appreciate Bowers & Wilkins engineering, exceptional build quality, and authoritative bass performance. Properly serviced examples continue to offer a listening experience that rivals many modern subwoofers.
⚠️ Important Note – Vintage Market Risks
When purchasing vintage audio equipment over 20 years old, actual condition is far more important than the model itself. On the general market, many units may suffer from aging components, inconsistent restoration quality, or altered sound performance due to improper servicing.
At HQaudios, every unit is carefully restored, tested, and verified using a structured technical process to ensure stable performance and preserve the original sound signature. This provides a significantly safer and more reliable buying experience compared to unverified vintage listings.
HQaudios – Restored & Tested Unit
This product has been fully inspected, restored, and sound-tested by HQaudios following standard technical procedures to ensure stable performance and preserve the original B&W sound signature.
- Condition: Good – fully cleaned & restored
- Warranty: 1 year (repair or replacement)
- Free Support: Must be used before requesting return
- Ready to use, no further adjustment required
Why This Listing
Unlike unverified vintage units on the market, this pair of B&W ASW4000 subwoofers has been restored and thoroughly tested, ensuring stable sound quality and reducing the risks associated with buying vintage equipment.
Customer Service
Once your item arrives, if you have questions about operation or setup, please contact us anytime. We are here to support you before and after purchase.
**TRADE-IN PROGRAM
If you have any vintage audio equipment (receivers, speakers, cassette decks, reel-to-reel, etc.) and want to upgrade to a serviced unit, please contact us for the best offer. You only need to pay the difference between your item and ours.
Notes
- This item is designed for the U.S. market and operates on U.S. power standards. If you are located outside the United States, please contact us before purchasing so we can help confirm compatibility for your setup.
- The actual color and appearance of the product may slightly vary due to lighting conditions, camera settings, and display differences. Some angles may not fully reflect every detail of the item. Please review all descriptions carefully and feel free to message us for clarification.
2/ SPECIFICATIONS
- Dimensions (W x H x D): 24.0 x 22.8 x 22.8 inch
- Type: Active
- Positioning: Floorstanding Subwoofer
- Enclosure: Vented Box
- Way system: Single Driver
- Power Output: 450 Watts Continuous
- Frequency Response: 17Hz to 140Hz Adjustable
- Sensitivity: 88 dB
- Driver: 15-inch Long Throw Woofer
- Inputs: RCA Phono, Speaker Level
- Outputs: RCA Phono, Speaker Level
- Weight: 165 lbs (75 kg)
3/ KEY FEATURES
- Massive 15-inch long-throw woofer
- Powerful 450-watt built-in amplifier
- Deep and authoritative low-frequency performance
- Designed to complement B&W 800 Series speakers
- Adjustable crossover and phase controls
- Excellent extension for music and home theater systems
- Heavy-duty cabinet construction
- Professionally restored and tested by HQaudios
4/ RESTORATION & TECHNICAL PROCESS
Original condition issues
- Normal cosmetic wear associated with age
- Minor scratches and finish imperfections
- Internal inspection required due to long-term use
- Performance verification required before operation
HQaudios Restoration Process
- Complete internal inspection and evaluation
- Cleaning of internal and external assemblies
- Amplifier section inspection
- Input and output connection inspection
- Driver performance verification
- Cabinet cleaning and detailing
- Reassembly and calibration
- Extended operational and sound testing
Results after restoration
- Stable operation verified during testing
- Deep and controlled bass performance
- Improved reliability and operational consistency
- Clean amplifier performance without abnormal noise
- The pair has been confirmed fully functional and stable by HQaudios
5/ RECOMMENDED SYSTEM MATCHING
The ASW4000 performs exceptionally well with speakers such as:
- B&W 800 Series
- B&W Nautilus Series
- Martin Logan Speakers
- Revel Loudspeakers
- High-End Home Theater Systems
- Proper system matching will maximize the deep, powerful, and controlled bass performance of the ASW4000.
HQaudios is available to assist with system matching before purchase.
6/ PACKAGING & SHIPPING
Secure Packaging:
- High-density foam inserts with 5-layer corrugated cartons
- Additional internal padding and wrap for transit protection
- Double-wall outer box with corner guards and straps
Shipping Details:
- Dispatch Time: Ships within 3 business days
- Carrier: UPS Ground (tracked & insured)
- Signature Required: Yes (as buyer’s request)
- Transit Time: Typically 3–7 business days (USA)
International Shipping:
We offer global delivery through the eBay International Shipping Program. eBay handles customs, duties, and tracking.
📦 Note: Packaging may vary slightly depending on unit size or availability, but safety and protection are always our top priority.
Thank you for viewing our listing! Please kindly ensure you read all the provided information carefully!
We strive to describe all items honestly and accurately. However, as human beings, we may occasionally make mistakes. If you have any doubts or encounter conflicting information, please inquire before purchasing or making an offer.
We kindly request that all buyers give us the opportunity to address any issues.
Payment Policy:
All buyers are required to make immediate payment or contact us within 24 hours to arrange payment, with payment received within 3 days. Offers submitted under the Best Offer feature are considered binding agreements and require immediate payment upon acceptance. Failure to adhere to these terms may result in substitution or cancellation of the transaction.
Payments must be accompanied by a valid shipping address listed as Confirmed. Payments with invalid shipping addresses will be refunded and may incur a processing fee deducted from the refund amount.
Shipping Policy:
This is for local pickup or we will ship it very carefully so that it arrives in good shape like it is now. Our customers’ satisfaction means everything to us. Once you get this item, feel free to contact us if it has any problems! I will try to answer any questions that you may have in a timely fashion.
All shipments are processed within 03 business days of payment, whenever possible. In the event of stock issues causing a delay, customers will be promptly notified, and alternative shipment arrangements will be made. Customers are responsible for any charges incurred due to failed delivery attempts or re-delivery.
Return Policy:
Our Free Support service must be utilized before requesting any return, for any reason.
Items may be exchanged within 30 days if defective or not as described, with a full refund of the purchase price if an exchange is unavailable.
If due to seller error, we will issue a prepaid return label or arrange for reimbursement of return shipping expenses as per this policy, not exceeding the original shipping cost.
The address for returning shipment: 10851 Capital Ave, Garden Grove CA 92843
Returned items may require inspection before determining fault. The item must be received in its original, unaltered condition with all original packaging. Electronic items cannot be opened or tampered with; sealed items must remain sealed, and “Mint” items must remain in “Mint” condition.
No returns will be accepted without first contacting us for Free Support, troubleshooting, or evaluation.
Warranty policy:
The warranty covers technical parts for up to 12 months from the date of receipt, provided there is valid evidence and the item remains sealed, unaltered, and has not been disassembled or internally inspected/repaired. Please note that shipping costs for warranty service will be the seller’s responsibility if the item is found to be defective.
⚠ Important Notice:
To ensure a smooth warranty process, we kindly request that you record a video while unboxing your package upon delivery. Any claims related to product damage or warranty service must be supported by clear video and photographic evidence. Please submit all required documentation to the official HQaudios email for prompt assistance.
***Failure to provide sufficient information as per our guidelines may result in the rejection of your request.
If you have any issues or dissatisfaction with our services, products, or policies, please refrain from leaving negative feedback immediately. Instead, contact us right away so we can provide you with the best possible solution and have the opportunity to improve our service quality!
Thank you for being a valued customer & Thanks for looking!
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