Excellent JBL 4343 Vintage Studio Monitor Pair of Speakers–Restored- 1-Year WRT

CONDITION: Excellent – Serviced, tested, and cleaned
MODEL: JBL 4343
TYPE: 4-Way Studio Monitor Speakers
PROTECTION PLAN: 1-Year Warranty Included
FREE SUPPORT: Must be used before requesting return
SKU: 12CC0004

Excellent JBL 4343 Vintage Studio Monitor Pair of Speakers

ABOUT:

JBL 4343 speakers is one of the most legendary 4-way studio monitors from the 1970s, built for professional recording environments and prized by audiophiles worldwide. Featuring a massive 15-inch woofer, dedicated mid-bass driver, horn-loaded compression driver, and ultra-high-frequency slot tweeter, the 4343 delivers reference-level performance with dynamic range, accuracy, and scale.

With its imposing presence and unmatched clarity, it remains a flagship monitor for collectors and serious listeners.

⚠️Note: Speaker stands are not included.

CONDITION: Excellent – Serviced, tested, and cleaned
MODEL: JBL 4343
TYPE: 4-Way Studio Monitor Speakers
PROTECTION PLAN: 1-Year Warranty Included
FREE SUPPORT: Must be used before requesting return
SKU: 12CC0004
Customer Service:

Once your item arrives, if you have questions about how your item functions or proper settings, please CONTACT US.

TRADE-IN PROGRAM

“If you have any vintage audios (receivers, speakers, cassette, reel to reel…) & want to upgrade with the serviced one, don’t hesitate to contact us for the best deal. You only need to pay for the difference between yours & mine….”

Note:

The actual color of the product may sometimes differ slightly from the photos due to lighting conditions, temperature, and the device used. Some angles in the photos may not fully reflect the product’s condition. Please read the description carefully and feel free to message us if you have any questions.

TECHNICAL SPECIFICATIONS:

Configuration: 4-Way Floorstanding Monitor
Woofer: 15″ JBL 2231A
Midbass: 10″ JBL 2121
High Frequency: JBL 2420 compression driver + acoustic horn
Ultra-High Frequency: JBL 2405 slot tweeter
Crossover Frequencies: 300Hz / 1.25kHz / 9kHz
Frequency Response: 35Hz – 20kHz
Sensitivity: 93dB / 1W / 1m
Impedance: 8 Ohms
Power Handling: 100W RMS
Dimensions (each): 42.5″ H × 25.25″ W × 18.5″ D
Weight (each): Approx. 143 lbs
KEY FEATURES:

Massive 15-Inch Woofer – Deep, powerful bass with studio-grade accuracy
Dedicated Mid-Bass & Horn Driver – Smooth midrange and lifelike vocal presence
Ultra-High-Frequency Slot Tweeter – Extended sparkle and detail
Studio Heritage – Designed for professional mastering and monitoring
Adjustable L-Pads – Fine-tune high and midrange levels to your room
Classic JBL Design – Iconic blue baffle with walnut veneer cabinets
Collector’s Favorite – A true grail piece for vintage speaker enthusiasts

REFURBISHED DETAILS (FULL RESTORATION)

This pair of JBL 4343 Studio Monitors has been fully restored by HQaudios with a focus on authenticity, durability, and sonic accuracy. Every step of the restoration follows our premium workflow to return these legendary monitors to true studio-grade performance.

1. Cabinet & Finish Restoration

Original walnut veneer was carefully sanded, repaired, and refinished to achieve a clean, rich, uniform wood tone.

Edges, corners, and panel lines were corrected to ensure the cabinet sits square, flush, and vibration-free.

Rear panels were refinished in factory-correct matte black.

Internal damping materials checked and renewed where needed.

The result: a cabinet that looks showroom-ready while preserving JBL’s vintage character.

2. Custom Blue Monitor Grilles

The iconic JBL blue front grilles were rebuilt from scratch for perfect tension and fit.

New premium cloth was used, color-matched to the original studio monitor shade.

Grille frames were straightened, repainted, and structurally reinforced.

HQaudios custom tag included.

Clean, uniform, and visually stunning, a highlight of the 4343 restoration.

3. Drivers Fully Serviced & Verified

Every driver was removed, inspected, cleaned, serviced, and electrically verified.

Woofer (15″)

Cone, dustcap, surround, and compliance inspected.

Suspension serviced for optimal movement.

Voice coil alignment checked.

Ohm load measured and matched pair-to-pair.

Midbass (10″)

Soft parts cleaned and reconditioned.

Motor gap and spider alignment inspected.

Electrical load measured to ensure stability.

Midrange / Horn Assembly

Horn throat cleaned thoroughly.

Diaphragm inspected under magnification.

Terminals cleaned, contacts tightened, and load measured.

Tweeter

Dome and diaphragm inspected for symmetry and response accuracy.

Tested for smooth, distortion-free high-frequency output.

All drivers operate exactly as intended, with correct impedance and acoustic output.

4. Crossovers – Cleaned, Stabilized & Verified

Crossovers were removed and carefully cleaned.

Caps, coils, and resistors checked for drift and stability.

Switches and controls cleaned and calibrated.

Boards reinstalled with clean terminals and correct wiring.

Maintains original JBL tonal balance with restored reliability.

5. Internal Wiring & Terminals

Binding posts cleaned and tightened.

Internal wiring re-secured to prevent rattling or signal interruption.

Polarity checked for all drivers.

6. Acoustic Testing – 2 Hours Continuous

Each speaker undergoes a 2-hour test session at HQaudios including:

Frequency sweep

Multi-driver coherence check

Distortion checking at mid & high volume

Channel matching left-right

Long-form music testing

You receive a pair that plays clean, powerful, and balanced, exactly how classic JBL monitors should.

SUGGESTED PAIRINGS:

Marantz 2330 or 2600 Receiver – Classic warm synergy with JBL monitors
Kenwood KR-9600 Receiver – Monster receiver to handle the power
Luxman C-05 + M-05 – High-end Japanese pre/power combo for precision control
McIntosh MC2105 or MC2205 Amplifiers – Legendary American power pairing
TEAC X-1000R Reel-to-Reel – True studio-grade analog source
Note: Speaker stands are not included

🎁 GET A $100 VOUCHER INSTANTLY WHEN YOU BUY A COMBO!

PACKAGING & SHIPPING:

Each unit is carefully packed using:

Nylon wrap and sealed inner carton
Custom EPE foam corners to protect edges
Double-wall outer box for shock resistance
Plastic straps + handling labels to ensure safe transit
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 model, but safety and protection are always our top priority.

WHAT YOU RECEIVE

1 Pair JBL 4343 Studio Monitors – Fully Restored

HQaudios inspection tags

New custom blue grilles

Carefully packed for safe delivery

—————————————————————————————————–

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!