Altec Lansing MK-5 (c. 1991)
A Japanese-systematized, bass reflex bookshelf speaker developed for studio and stage use, based on the A5 platform.
Overview
The Altec Lansing MK-5 is a 2-way, 2-speaker bass reflex system designed for professional use in studios and halls. Built around 1991, it was developed by ALTEC Sound Development (ASD), a brand established by Elektri to systematize Altec products for the Japanese market. It evolved from the legacy of the Altec A5 system, refined for improved usability without sacrificing performance.
Specifications
| System type | 2-Way, 2-Speaker, Bass Reflex System, Bookshelf Type |
| Low frequency unit | 38 cm cone type (3156) |
| High frequency unit | Horn Type (MRII594 + 288-8K) |
| Network | N-8500-8A |
| Frequency characteristic | 50 Hz to 16 kHz |
| Impedance | 8 Ω |
| Allowable input | 75W |
| Output sound pressure level | 99dB |
| Crossover frequency | 500Hz |
| External dimensions | Width 640 x Height 900 x Depth 540 mm |
| Weight | 69.5kg |
Design
The MK-5 features a bass reflex cabinet engineered according to Thiele & Small theory, using a composite construction of FRP and wood plywood. It was designed to improve upon the Altec A5 system with a more user-friendly form while maintaining professional-grade acoustic performance.
Context
Developed for use as a stage monitor in halls and as a holdback speaker in studios, the MK-5 is part of the MK series from ALTEC Sound Development (ASD), representing a Japanese systematization of classic Altec Lansing audio technology. It reflects a focused effort to adapt proven designs for modern professional environments.
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