JBL 375 Large-Format Compression Drivers (Pair) – Professionally Tested – 1-Year Warranty

Professionally Restored by HQaudios – Fully Tested – Backed by Our 1-Year Warranty.

Up for sale is a highly sought-after pair of JBL 375 large-format compression drivers, professionally inspected and tested by HQaudios. The JBL 375 is one of the most legendary vintage compression drivers ever made, using a 4″ aluminum diaphragm, a ribbon-wire voice coil, and a massive Alnico V magnet assembly to deliver the effortless dynamics, high efficiency, and detailed midrange that made JBL studio and theater systems famous.

This pair of drivers is ideal for buyers who appreciate authentic vintage audio, detailed presentation, quality build, and the peace of mind of purchasing from a trusted restoration-focused seller.

Key Highlights

• Matched pair of JBL 375 large-format compression drivers
• 4″ (10.2 cm) aluminum diaphragm with ribbon-wire voice coil
• Massive Alnico V magnet – extremely high efficiency (approx. 108 dB)
• 2″ (5 cm) throat – pairs with classic JBL horns/lenses (537-509, HL91, etc.)
• Legendary vintage midrange used in JBL Hartsfield, Paragon and pro systems
• Professionally inspected and fully tested by HQaudios – 1-Year Warranty

Sound Character

The JBL 375 is famous for its fast, dynamic, and highly detailed midrange with tremendous headroom and lifelike presence. Paired with a suitable horn, it produces the effortless, high-efficiency sound that vintage JBL horn systems are legendary for – a favorite of audiophiles and horn-system builders worldwide.

Cosmetic Condition

This pair of drivers is in Excellent restored vintage cosmetic condition. The driver bodies, throats, labels and terminals are shown clearly in the photos.

As with most vintage audio equipment, there may be normal signs of age and previous use, including small marks, light scratches, or minor finish wear as shown. Please review all photos carefully, as they are part of the description.

Technical Condition

This pair of drivers has been professionally inspected and tested by HQaudios technicians under real listening conditions.

Service / inspection may include:

• Both drivers checked for proper operation
• Both drivers checked for balanced, clean output
• Terminals and connections cleaned and checked
• Diaphragm and magnet assembly inspected
• Real-world listening test completed
• Final quality check before shipment

After inspection and testing, this pair of drivers performs properly and is ready to enjoy.

Specifications

Note: Specifications are provided from published manufacturer and reference documentation for the JBL 375 and should be verified using the labels on the units when exact figures are critical.

Suggested Pairing

The JBL 375 pairs with classic JBL horns and acoustic lenses (such as the 537-509, HL91/HL92, or 2397 “Smith” horn) and a quality crossover to build a legendary vintage horn-based system.

Video Test & Sound Demo

Please contact us through our store contact page if you would like to see a video test before ordering. We are happy to provide additional video, sound demo, or photos upon request.

Trade-In Program

Do you have vintage audio equipment that you would like to trade in? We may accept receivers, amplifiers, speakers, drivers, cassette decks, reel-to-reel decks, turntables, and other classic audio gear. Please contact us with photos and details.

Shipping & Packaging

We understand that vintage audio gear requires careful handling. This pair of drivers will be professionally packed with strong protection to help ensure safe delivery.

• Careful protective wrapping
• Strong boxing and internal cushioning
• Extra protection for the magnets and diaphragms
• Tracking information provided after shipment

1-Year HQaudios Warranty

This item is backed by our 1-Year HQaudios Warranty covering proper functional operation under normal home use.

Warranty does not cover misuse, physical damage, unauthorized repair, damage caused by incorrect connection, improper matching, or shipping damage after delivery.

HQaudios – Vintage Audio Restored with Care.
Professionally Restored – Fully Tested – Carefully Packed – 1-Year Warranty.