The Boston Acoustics A150 is a classic 3-way, acoustic suspension floor-standing speaker known for its slim profile and accurate East Coast sound. [1, 2]. These sound fantastic but I have other speakers and am downsizing. The photos show their condition with the walnut veneer in great shape. They have glass tops too! These are from the Series 1 early 80's version. These are 45 pounds each. I do not have the original boxes but will pack these carefully to ship.
Key Specifications & Design
  • Type: 3-way, acoustic suspension floor-standing speaker [1]
  • Drivers:
    • Woofer: 10-inch acoustic suspension woofer
    • Midrange: 4.5-inch ferrofluid-cooled midrange
    • Tweeter: 1-inch ferrofluid-cooled soft dome tweeter [1]
  • Frequency Response: Around 38 Hz – 20 kHz (with solid bass extension into the mid-30 Hz range) [1, 2]
  • Power Handling: 15 – 150 watts [1]
  • Cabinet Design: Wide and shallow (approx. 6.5 inches deep), designed to minimize diffraction and fit tightly against a wall. [1, 2, 3]
Versions & History
  • Series I (1979–1983 approx.): Feature offset upper drivers and real wood veneer finishes (such as oak or walnut). [1, 2]
  • Series II & III (Mid-1980s): Feature in-line upper drivers and high-quality vinyl wraps. [1, 2]
Sound Characteristics
  • Bass: Tight, well-controlled, and punchy despite the thin cabinet depth. [1, 2]
  • Midrange & Treble: Natural, low-coloration vocals with a smooth, slightly laid-back treble from the soft dome tweeter. [1]
  • Placement: Designed to perform best when placed close to or flat against a back wall for proper boundary reinforcement. [1]
Dimensions
  • Height: 31 inches without the base (32.5 inches with the pedestal/base) [1]
  • Width: 16 inches [1]
  • Depth: 8 inches (excluding grilles; approximately 8.5 inches with grilles) [1, 2]
Weight
  • Weight: Approximately 45 pounds per speaker [1]