Altec Lansing 1211A
A column-type speaker system designed for musical instruments, built for small stage use.
Overview
The Altec Lansing 1211A is a column-type speaker system designed for musical instrument applications and configured as a floor-standing unit. Manufactured by Altec Lansing, it was developed specifically for use on small stages such as in small halls and night clubs. The system was engineered for on-stage monitoring, emphasizing focused sound projection and reduced feedback during live performances.
Specifications
| Type | 2-way, 4-speaker floor type |
| Units used | For low band : 20 cm cone type (403A) x3, For High Frequency : Horn Type (T60 + HF206) |
| Impedance | 8 Ω |
| Allowable input | 50W |
| External dimensions | Width 280x Height 890x Depth 360 mm |
| Weight | 20.5kg |
Design
The 1211A uses a column design that takes advantage of single-directional sound pressure distribution, which helps keep microphone howling extremely low. This makes it particularly effective for on-stage monitoring where feedback resistance is critical. The system integrates three 20 cm cone drivers (403A) for low-frequency reproduction and a horn-type high-frequency section (T60 + HF206) for clear treble output.
Context
Developed for small stages, the 1211A filled a niche in live sound reinforcement for musicians needing reliable, directional monitoring in compact venues like night clubs and small halls. Its design prioritizes feedback rejection and clarity over high-power handling, making it suitable for intimate performance environments.
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