Acoustic Research Limited Model 3 (1981–1984)
A floorstanding 3-way acoustic suspension speaker system released as part of AR's 40th anniversary Limited series
Overview
The Acoustic Research Limited Model 3 is a floorstanding speaker system from AR's Limited series, made for the company's 40th anniversary. It is a 3-way, 4-speaker design, and the enclosure is built for tight, accurate bass. A 30 cm polypropylene laminate woofer handles the lows. Two 7.5 cm soft dome midrange drivers cover the middle, and a 2.5 cm soft dome tweeter takes the highs. All the drivers sit on a symmetrical radiation array (SRA) d-E Plain baffle, which keeps front baffle interference down and spreads the sound evenly.
Specifications
| Design | 3-way, 4-speaker, acoustic suspension system, floor type |
| Drivers | For low band: 30 cm cone type; For midrange: 7.5 cm dome type x2; For high range: 2.5 cm dome type |
| Frequency response | 38 Hz to 20 kHz ± 2.5 dB |
| Sensitivity | 88dB/2.83V/m |
| Impedance | 4 Ω |
| Power handling | 200W (RMS), 800W (PEAK) |
| Crossover frequencies | 300 Hz, 2.5 kHz |
| Dimensions (W x H x D) | 330.2 mm x 1,231.9 mm x 330.2 mm |
| Weight | 55 kg |
Design
The 30 cm woofer has a polypropylene laminate structure and sits in an acoustic suspension (sealed) enclosure. The midrange uses two 7.5 cm soft dome units, and the high range uses a 2.5 cm soft dome tweeter. All drivers are mounted on a symmetrical radiation array (SRA) d-E Plain baffle to reduce front baffle interference and give uniform dispersion.
Context
Part of the AR "Limited" series, made for the company's 40th anniversary.
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