Boston Acoustics A40 Bookshelf Speakers

REFOAMED March/2025

Description: Two-way, stand-mounted loudspeaker. Drive units: ¾" (19mm) ferrofluid-cooled, soft-dome tweeter, 6.5" (170mm) long-throw paper-cone woofer. Crossover frequency: 3.5kHz. Frequency response: 68Hz–20kHz, ±3dB. Sensitivity: 88.5dB/W/m. Nominal impedance: 8 ohms. Recommended power: 5–40W.
Dimension: 13.5" (343mm) H x 8.25" (210mm) W x 7.75" (197mm). Weight: 9 lbs each (4.1 kg).
Finish: Wood grain vinyl.
Price: $150/pair (1984); no longer available (2013).
Manufacturer: Boston Acoustics, 7 Constitution Way, Woburn, MA 01801. Tel: (201) 762-6429, (508) 538-5000. Web: