Altec Lansing 9848A

The Altec Lansing 9848A is a professional-grade studio monitor from the 1970s, designed for critical listening in broadcast and recording environments. Known for its coaxial driver configuration and robust bass reflex cabinet, the 9848A delivers a balanced yet dynamic sound signature that made it a favorite among audio engineers during its era. As part of Altec’s renowned monitor series, this speaker represents a pivotal transition in studio monitor design—bridging the gap between high-efficiency horn systems and more neutral modern reference monitors.

Specifications

Feature	Specification
Model	Lansing 9848A
Brand	Altec
Year of Production	1970s
Category	Studio Monitor / Professional Audio Equipment
Configuration	2-way coaxial (woofer + compression driver)
Woofer	15-inch with coaxially mounted HF driver
High-Frequency Driver	Compression driver with horn loading
Power Handling	100W RMS (2 channels, stereo)
Impedance	8 ohms
Crossover	Built-in passive crossover
Enclosure Type	Bass reflex (ported) cabinet
Sensitivity	Not documented (estimated ~98 dB)
Frequency Response	45 Hz – 18 kHz (approximate)
Dimensions	28" H × 16" W × 14" D (approximate)
Weight	~65 lbs per cabinet

Historical Context

The Altec Lansing 9848A emerged during a transformative period in professional audio. In the 1970s, studios were shifting from purely high-efficiency horn systems to monitors that offered greater accuracy and extended frequency response. The 9848A, with its coaxial design, ensured time-aligned delivery of midrange and high frequencies—a significant advantage for imaging and phase coherence.

Built on Altec’s legacy of cinema and broadcast sound, the 9848A was widely adopted in radio stations, mastering facilities, and recording studios. Its design heritage traces back to the famous Altec 604 series, but with updated components and cabinet tuning for improved low-frequency performance. The large bass reflex enclosure allowed for deeper bass extension than earlier models, making it suitable for monitoring full-range program material.

Though eventually superseded by more neutral designs, the 9848A remains a respected classic, valued for its lively presentation, dynamic punch, and unmistakable midrange clarity.

Sound Signature

The 9848A delivers a forward and detailed midrange, characteristic of Altec’s horn-loaded designs. The coaxial layout ensures precise imaging and a coherent soundstage. Bass response is robust and punchy for its era, with the 15-inch woofer providing solid low-end output. High frequencies are crisp and articulate, though slightly emphasized—typical of vintage horn drivers.

Overall, the sound is dynamic and engaging, with excellent transient response. While not as flat as modern reference monitors, the 9848A excels in revealing the character and energy of a mix, making it a favorite for vintage tracking and mixing applications.

Maintenance and Restoration Tips

Due to their age, Altec Lansing 9848A speakers often require maintenance to restore optimal performance:

Foam Surrounds: The most common failure point. Original foam on the 15-inch woofer often deteriorates. Replacing with modern rubber or foam surrounds is highly recommended.
Crossover Components: Electrolytic capacitors in the passive crossover may dry out or leak. Rebuilding the crossover with modern film and polypropylene capacitors improves reliability and sound quality.
Horn Driver: Check the high-frequency compression driver for diaphragm fatigue or corrosion. Re-coning or full replacement may be necessary if distortion or low output is present.
Cabinet Care: Wipe down the cabinet with a wood-safe cleaner. Repair or refinish veneer as needed to preserve appearance and structural integrity.
Grilles: Original metal grilles may be bent or corroded. Clean gently and repaint if necessary.

Restoration can significantly enhance performance and longevity, making these speakers viable for both vintage setups and modern hybrid studios.

Collectibility and Market Value

The Altec Lansing 9848A holds a collectibility rating of 7/10. While not as iconic as the 604 series, it is respected among vintage audio enthusiasts and studio gear collectors. Its professional heritage, coaxial design, and strong build quality contribute to its enduring appeal.

As of recent market trends, a pair of 9848A speakers in good working condition typically sells for $800–$1,500, with higher prices for fully restored units or those with original, well-preserved components.

Conclusion

The Altec Lansing 9848A stands as a testament to 1970s professional monitor engineering. Combining a time-aligned coaxial design with powerful bass extension, it offers a compelling blend of accuracy and musicality. While requiring care due to age-related wear, properly maintained units continue to deliver impressive performance. For collectors, restorers, and vintage audio lovers, the 9848A remains a worthy representative of Altec’s golden era in studio monitoring.