Altec Lansing 1005 Multicellular Horn
The Altec Lansing 1005 is a multicellular horn built for high-performance audio in both professional and high-fidelity consumer settings. It controls dispersion tightly and is very efficient. It was a staple of mid-20th century sound reinforcement systems, and vintage audio fans and restorers still look for it.
Specifications
| Feature | Specification |
| Model | Lansing 1005 |
| Brand | Altec |
| Year of Introduction | Circa 1950s (exact production year unknown) |
| Impedance | 16 ohms |
| Sensitivity | Approximately 110 dB (1W/1m) |
| Compatible Drivers | Altec 288, 290 series compression drivers |
| Horn Type | Multicellular |
| Construction | Cast aluminum |
| Frequency Response | Optimized for high-frequency reproduction |
| Dispersion | Uniform high-frequency coverage |
| Intended Use | Professional sound, studio monitoring, home hi-fi |
Historical Context
The Altec Lansing 1005 was developed as part of Altec's "Voice of the Theatre" speaker system lineup. That lineup became an industry standard in movie theaters, broadcast studios, and public address systems during the 1950s through the 1970s. The multicellular design gives controlled, even dispersion of high frequencies - important for consistent sound coverage in large venues.
The 1005 was often paired with Altec's 288 or 290 series compression drivers. It delivered clarity and dynamic range that set a benchmark in audio engineering. It also went beyond commercial installations into high-end home audio systems, where audiophiles prized its detailed, lifelike sound and its efficiency.
The 1005 reflects Altec's commitment to durable engineering and acoustic precision, and it added to the brand's reputation for durability and sonic quality during the golden era of analog audio.
Sound Signature
The Altec 1005 has a clear, articulate high-frequency response, smooth yet dynamic, typical of classic Altec designs. The multicellular throat design minimizes distortion and provides even dispersion, which gives a spacious and natural soundstage. With a suitable driver, it delivers punchy transients and excellent intelligibility for both music and voice.
Sensitivity is high, approximately 110 dB. That allows powerful output with minimal amplifier power, which made it a favorite in passive high-fidelity systems and vintage restoration projects.
Maintenance and Restoration Tips
Because of its age, proper care is essential to preserve or restore the Altec Lansing 1005:
- Driver Inspection: Check the compression driver (e.g., 288/290 series) for diaphragm integrity. Replacing deteriorated Mylar domes or voice coils may be necessary for optimal performance.
- Horn Surface: Inspect the cast aluminum horn for corrosion or pitting. Clean gently with a non-abrasive aluminum polish to maintain structural and acoustic properties.
- Mounting Hardware: Verify that mounting brackets and fasteners are secure and free from rust. Replace worn hardware to ensure safe installation.
- Sealing: Ensure an airtight seal between the horn and driver. Use high-temperature gasket material or silicone if needed to prevent acoustic leakage.
- Storage: Store in a dry, temperature-stable environment to prevent moisture damage and oxidation.
Restored units perform very well in vintage audio setups. When properly maintained, they often rival modern horns in clarity and presence.
Collectibility and Market Value
The Altec Lansing 1005 holds a collectibility rating of 7/10. Its buyers are professional audio historians, theater sound restorers, and high-fidelity collectors. Value runs $200 to $500, depending on condition, originality, and whether it includes a matching compression driver.
Units with original finishes, intact labeling, and minimal casting flaws command higher prices. Complete systems (horn + driver + crossover) are especially wanted for full-range vintage speaker builds.
While not as rare as some Altec models, the 1005 remains a cornerstone of classic horn-loaded design and a testament to mid-century American audio innovation.
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