Altec Lansing 893A Corona (1970)
A compact, sealed bookshelf speaker system released by Altec Lansing in 1970, featuring a 25 cm woofer and 7.5 cm tweeter.
Overview
The Altec Lansing 893A Corona is a bookshelf speaker system introduced in 1970. Designed as part of a new series of compact bookshelf models, it uses a 2-way configuration with separate drivers for low and high frequencies. The system employs an airtight sealed cabinet design, contributing to its defined bass response within a controlled enclosure.
Specifications
| Type | 2-Way, 2-Speaker, Airtight (Sealed) Type, Bookshelf Type |
| Woofer | 25 cm cone type |
| Tweeter | 7.5 cm cone type (direct radiator) |
| Impedance | 8 Ω |
| Frequency characteristic | 50 Hz to 18 kHz |
| Allowable input | 45W |
| Crossover frequency | 2.5kHz |
| External dimensions | Width 560 x Height 310 x Depth 240 mm |
Design
The 893A Corona features a sealed cabinet design for tight, controlled bass response. It mounts a newly developed 25 cm cone-type woofer for low-frequency reproduction and a 7.5 cm cone-type direct radiator tweeter for highs. The crossover network includes a 3-dB-step high-frequency attenuator, allowing adjustment of the tweeter output to suit listening preferences or room acoustics.
Context
Developed as part of Altec Lansing’s new bookshelf series, the 893A Corona was positioned as a relatively compact speaker system without sacrificing driver size, combining a 25 cm woofer in a bookshelf-friendly enclosure.
Market
The 893A Corona was originally priced at ¥82,000 at launch in 1970, later revised to ¥85,600. No current market values or common failure data are available.
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