Altec 1211A

A column-type speaker system designed for on-stage monitoring in small venues

Overview

The Altec 1211A is a column-type speaker system from Altec Lansing, built for on-stage monitoring. It was made for small halls and night clubs, where controlled sound projection and feedback resistance are critical. The vertical array shapes how the sound spreads, which cuts the risk of microphone feedback during live performances.

Specifications

Model Rating Method	2-way, 4-speaker floor type (Audio Database)
Drivers	Low frequency: 20 cm cone type (403A) x3; High frequency: Horn Type (T60 driver + HF206 horn) (Audio Database)
Impedance	8 Ω (Audio Database)
Allowable input	50W (Audio Database)
External dimensions	Width 280 x Height 890 x Depth 360 mm (Audio Database)
Weight	20.5kg (Audio Database)

Design

The 1211A uses three 20 cm 403A full-range cone drivers for the low frequencies. A T60 driver paired with an HF206 horn handles the highs. The column design gives directional sound pressure distribution, which helps keep microphone feedback down on stage.

Context

Small-scale live sound rooms like night clubs and small halls were the target for the 1211A. In those spaces, reliable stage monitoring with reduced feedback was essential.