Altec Lansing 9849-8A

The Altec Lansing 9849-8A is a professional-grade studio monitor from the 1970s, designed for critical listening in broadcast and recording environments. As part of Altec's renowned 9849 series, this speaker exemplifies the company's expertise in horn-loaded loudspeaker design, delivering high sensitivity, dynamic clarity, and robust power handling. Widely used in mastering studios and radio stations during its era, the 9849-8A remains a sought-after vintage monitor for audiophiles and professionals who appreciate its transparent midrange and efficient performance.

Specifications

Parameter	Specification
Model	Altec Lansing 9849-8A
Year of Production	1970s
Configuration	3-way, passive crossover
Low-Frequency Drivers	Dual 12-inch woofers
High-Frequency Section	811B constant-directivity horn
Compression Driver	806A
Power Handling	100W RMS (2 channels)
Nominal Impedance	8 ohms
Sensitivity	98 dB (1W/1m)
Crossover Type	Passive, internal
High-Frequency Control	Built-in attenuator for HF adjustment
Enclosure Type	Large ported cabinet
Dimensions (H×W×D)	Approx. 36" × 18" × 16" (varies by cabinet)
Weight	Approx. 85 lbs per cabinet

Historical Context

The Altec Lansing 9849-8A was developed during a golden era of analog audio engineering, when broadcast and recording studios demanded monitors with high output, low distortion, and consistent dispersion. As a refined version of the earlier 9849 models, the 9849-8A incorporated improvements in driver materials and crossover design while retaining the core horn-loaded architecture that defined Altec's professional monitors.

Altec, known for its legacy in cinema and studio sound, applied its expertise in compression drivers and constant-directivity horns to create monitors that could handle long listening sessions with minimal fatigue. The 811B horn paired with the 806A driver provided exceptional high-frequency clarity and dispersion control, making the 9849-8A ideal for critical audio evaluation.

These speakers were commonly found in mastering facilities, radio stations, and post-production houses throughout the 1970s and into the 1980s. Their use by legendary engineers and studios has cemented their reputation as reference-grade monitors of their time.

Sound Signature

The 9849-8A delivers a sound that is dynamic, transparent, and highly efficient. The horn-loaded high-frequency section provides detailed and articulate treble with excellent projection, while the dual 12-inch woofers offer punchy, well-defined bass—though not extended into the deepest sub-bass frequencies by modern standards.

The midrange is particularly notable: clear, forward, and natural, making these monitors excellent for vocal and instrumental reproduction. The high sensitivity (98 dB) allows them to achieve high sound pressure levels with relatively low amplifier power, a hallmark of Altec's design philosophy.

Due to their studio-monitor heritage, the 9849-8A presents a relatively neutral tonal balance, though with a slight emphasis on presence in the upper mids—ideal for detecting flaws in recordings.

Maintenance and Restoration Tips

As vintage professional monitors, the Altec 9849-8A units often require maintenance to restore optimal performance:

Crossover Capacitors: The passive crossover network commonly uses aging electrolytic and paper-in-oil capacitors that may drift in value or fail. Replacing these with modern film capacitors improves reliability and sound quality.
Woofers: The foam surrounds on the 12-inch woofers are prone to deterioration after 40+ years. Re-foaming or reconing by a specialist is recommended for units showing sagging or disintegration.
Compression Driver (806A): The titanium diaphragm in the 806A driver can develop tears or lose damping over time. Inspect for rattles or distortion at high volumes. Rebuilding or replacing with a refurbished unit may be necessary.
Horn (811B): Check for dents or damage to the horn throat and mouth, as these can affect dispersion and frequency response.
Cabinets: The large ported enclosures are typically made of multi-ply plywood. Look for loose joints, veneer damage, or port blockages. Reinforce if necessary.
Grilles and Hardware: Original grilles may be missing or damaged. Replacement or custom fabrication can restore aesthetics and protect drivers.

Regular inspection and conservative restoration—prioritizing originality where possible—will preserve both performance and collectibility.

Market Value and Collectibility

The Altec Lansing 9849-8A holds steady demand among vintage audio enthusiasts and studio gear collectors. In working condition with original components, a pair typically sells for $800 to $1,500, with higher prices for fully restored or exceptionally well-preserved units.

Collectibility is rated 7/10 due to its professional pedigree, historical significance, and enduring sonic reputation. While not as ubiquitous as the Altec 604 or 605, the 9849-8A is respected for its superior build quality and studio-grade performance.

These monitors are especially prized by owners of vintage tube amplifiers, as their high sensitivity and 8-ohm load make them an ideal match for low-power, high-fidelity amplification.

Conclusion

The Altec Lansing 9849-8A stands as a testament to 1970s professional audio engineering—robust, efficient, and sonically transparent. While requiring care due to age-related wear, a well-maintained pair offers a listening experience that bridges the gap between vintage character and studio accuracy. For collectors, restorers, and analog audio lovers, the 9849-8A remains a compelling piece of audio history.