JBL L88 Plus Speakers (Pair) – Professionally Restored – Fully Tested – 1-Year Warranty

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

Up for sale is a beautiful pair of JBL L88 Plus speakers, one of the most distinctive vintage JBL home-audio designs from the golden age of American loudspeakers.

The L88 Plus was developed as a high-performance home loudspeaker based around JBL’s professional-style driver technology. Its substantial cabinet, 12-inch woofer, dedicated midrange capability, and high-frequency driver give the system the scale and dynamic character associated with classic JBL loudspeakers of the 1970s.

This pair is presented in the expanded three-way configuration using the JBL M12 Expander Kit, which adds the dedicated LE5-2 midrange driver and associated crossover network to the original L88 Plus system.

The combination of the large 12-inch woofer, dedicated midrange, and tweeter gives the speaker a more complete and controlled presentation across the vocal and instrumental range.

The JBL L88 Plus is particularly attractive to vintage JBL collectors because it offers the classic walnut cabinet styling, large white-cone woofer, traditional JBL driver technology, and the possibility of the L88 Plus / M12 configuration without requiring the same cabinet platform as many larger JBL models.

This pair has been professionally inspected, serviced, restored, and tested by HQaudios and is ready for serious home listening, vintage stereo use, or collection.

Whether you are building a classic 1970s JBL system or adding to an established vintage audio collection, the L88 Plus offers the unmistakable visual presence and energetic musical character that made classic JBL loudspeakers so highly regarded.

Key Highlights

• Authentic pair of vintage JBL L88 Plus speakers
• Classic JBL American hi-fi loudspeaker design from the 1970s era
• Large 12-inch JBL woofer with iconic white cone
• Three-way configuration with dedicated midrange and tweeter
• Expanded three-way configuration using the JBL M12 Expander Kit, creating a driver arrangement closely related to the JBL L100 Century.
• Bass-reflex enclosure for powerful and extended low-frequency performance
• High-efficiency vintage JBL driver system
• Large-scale, dynamic presentation with strong vocal presence
• Excellent choice for classic rock, jazz, blues, soul, and orchestral music
• Beautiful vintage wood cabinet design
• Professionally inspected, serviced, and tested by HQaudios
• Ready for home listening, vintage stereo use, or collection
• Carefully packed for safe shipping
• Backed by our 1-Year HQaudios Warranty

Sound Character

The JBL L88 Plus delivers the classic JBL presentation that vintage audio enthusiasts continue to seek: dynamic, lively, open, and highly engaging.

The large 12-inch woofer provides strong low-frequency impact and a sense of scale that smaller bookshelf speakers cannot easily reproduce. Bass has the physical presence and immediacy associated with classic JBL systems, making the L88 Plus especially enjoyable with rock, jazz, blues, soul, and live recordings.

The dedicated midrange section gives vocals, guitars, horns, piano, and other instruments a stronger sense of presence and articulation. Compared with a conventional two-way configuration, the three-way L88 Plus / M12 arrangement allows the important midband to be handled by its own dedicated driver.

The JBL tweeter provides the characteristic vintage JBL high-frequency presentation: articulate, energetic, and detailed without losing the lively character that defines the era.

Overall, the L88 Plus is not designed to sound overly polite or clinical. It has a bold, immediate character with excellent musical energy, strong dynamics, and the ability to make vintage recordings especially enjoyable.

Actual Condition

The speakers are presented in Very Good vintage cosmetic condition. The walnut-finish cabinets retain the classic appearance of the original JBL design, while normal signs of age may be present, including light scratches, small marks, minor edge wear, or other cosmetic imperfections consistent with a vintage speaker of this era.

Based on the provided photos, the cabinets, front baffles, drivers, grilles, JBL badges, and wooden bases are clearly visible. The pair shows the characteristic large white JBL woofer cones along with the dedicated midrange and tweeter arrangement.

The wood finish has the natural character expected from vintage JBL cabinets, and any minor cosmetic variations should be considered part of the history and character of a decades-old loudspeaker.

Please review all photos carefully as they are an important part of the description and provide the most accurate representation of the actual pair being offered.

HQaudios Restoration & Testing Process

Specifications

What Is Included

Pair of JBL L88 Plus Speakers.

Three-way configuration with the M12-style midrange expansion as shown in the photos.

Original-style grilles and speaker cabinets are included where shown in the photographs.

Only the items clearly shown in the photos or specifically listed in the description are included.

Amplifiers, speaker cables, stands, accessories, manuals, or other equipment are not included unless specifically shown in the photos or stated in the listing.

Video Test & Sound Demo

We understand that purchasing vintage JBL loudspeakers online requires confidence, especially when buying a classic pair from the 1970s.

If you would like to see this pair in operation before purchasing, please contact us through eBay messages. Whenever available, we are happy to provide additional photos, close-up images, operational videos, or sound demonstrations.

Video demonstrations may include individual driver operation, left/right channel comparison, tonal balance, level control operation, and extended music playback through a complete vintage audio system.

You are also welcome to visit the HQaudios YouTube channel to explore restoration projects, product demonstrations, and listening sessions featuring professionally restored vintage audio equipment.

Suggested Pairing

The JBL L88 Plus works best with a clean, stable vintage amplifier or receiver capable of delivering controlled power while preserving the dynamic character of the JBL drivers.

The L88 Plus is especially well suited to classic American and Japanese vintage amplification with clean, stable power and a slightly warm or neutral tonal balance.

For the best performance, HQaudios recommends pairing the JBL L88 Plus with a professionally restored amplifier and using careful speaker placement to achieve the best stereo imaging and bass integration.

Trade-In Program

Do you have vintage audio equipment you’d like to trade in?

HQaudios welcomes trade-ins on receivers, amplifiers, speakers, cassette decks, reel-to-reel decks, turntables, and other classic audio components.

Simply send us photos and basic information about your equipment. Our team will gladly review your items and discuss available trade-in options.

Vintage JBL speakers, receivers, amplifiers, turntables, reel-to-reel machines, and other classic components may be considered depending on condition, model, completeness, and restoration potential.

Build Your Vintage System

Looking to build a complete classic JBL or vintage American audio system?

The JBL L88 Plus pairs beautifully with professionally restored vintage receivers, integrated amplifiers, turntables, reel-to-reel decks, and other classic audio components available from HQaudios.

For a traditional 1970s system, the L88 Plus can serve as the centerpiece of a powerful stereo setup alongside a classic Marantz, Sansui, Pioneer, Yamaha, or McIntosh amplifier.

The large 12-inch woofer and dedicated midrange make the L88 Plus particularly suitable for listeners who enjoy energetic music reproduction, classic rock, jazz, blues, soul, funk, vocal recordings, and live performances.

If you’re planning to purchase multiple components, ask us about available package pricing and complete system recommendations tailored to your listening preferences.

Shipping & Packaging

Vintage JBL speakers are substantial and delicate audio components that require careful packing. The L88 Plus combines a large woofer, midrange, tweeter, crossover network, wooden cabinet, and grille assembly, so professional packaging is especially important.

• Woofer, midrange, tweeter, and front baffle protected carefully.
• Driver cones and delicate components protected against impact.
• Wooden cabinets protected against scratches, dents, and transportation damage.
• Grilles and removable components secured separately where appropriate.
• Protective wrapping and reinforced boxing with substantial internal cushioning.
• Internal protection designed to minimize movement during transportation.
• Tracking information provided after shipment.
• Freight shipping may be recommended for particularly heavy or fragile shipments.

For very heavy or fragile vintage equipment, local pickup may also be available by appointment.

Because each L88 Plus speaker is a substantial vintage cabinet, careful handling and reinforced packaging are essential for safe delivery.

1-Year HQaudios Warranty

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

Our goal is to provide a confident and comfortable buying experience when purchasing vintage JBL equipment. If you have any questions after receiving your JBL L88 Plus speakers, please contact us first through eBay messages. We are here to help.

Because vintage loudspeakers contain mechanical drivers and aging crossover components, proper amplifier matching, appropriate volume levels, and correct operating procedures are important for reliable long-term use.

Warranty does not cover misuse, physical damage, unauthorized repair, amplifier clipping, excessive power, incorrect wiring, incompatible amplification, overdriving the speakers, or shipping damage after delivery.

Important Note for Buyers

Vintage JBL loudspeakers are precision audio components and should be treated with appropriate care. They require proper amplifier matching, correct polarity, suitable listening levels, and appropriate placement to perform at their best.

The JBL L88 Plus is a vintage loudspeaker system from the classic era of JBL. While professionally restored and tested, it should still be treated as a vintage mechanical and electrical audio component rather than a modern plug-and-play speaker.

The large woofer and other drivers should not be exposed to excessive amplifier clipping or unusually high power levels. A clean amplifier operating within its appropriate range is recommended for reliable long-term performance.

Due to the age of vintage equipment, small cosmetic imperfections, variations in wood finish, grille condition, and other signs of previous ownership should be expected and are part of the character of these classic JBL speakers.

We do our best to describe each pair clearly and provide detailed photos so you can buy with confidence. Please review all photos, read the full description, and contact us with any questions before purchase.

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