Vintage Boutique Tour
Liam will walk you through the Boston Acoustics A400.
A narrated 4-scene walk-through by your host — quirks, sound, and fair value.
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Premium AI Voice Guide
PROLiam's bench-side rundown of the Boston Acoustics A400.
Real-time streaming voice — specs, history, restoration pain points, market value.
Sonic Similarity Analysis
Both speakers use dual woofer configurations in three-way designs prioritizing smooth, balanced sound over aggressive voicing. They deliver refined, natural presentation with extended bass response suitable for a wide range of music, emphasizing tonal accuracy and musicality over coloration.
Boston Acoustics A400
vs.
Monitor Audio Silver 300 7G
90 dB
Sensitivity
90 dB
4–4 Ω
Impedance
8–8 Ω
25–200W
Power Handling
60–250W
4-way
Driver Count
4-way
1in tweeter, 4.5in midrange, dual 10in woofers
Driver Config
1in gold dome tweeter, 4in midrange, 2x 6.5in bass drivers
Bass-reflex
Enclosure
Bass-reflex
Floorstander
Size
Floorstander
32Hz – 20kHz
Frequency Response
35Hz – 35kHz
72 lbs
Weight
48.5 lbs
Vintage (used avg)
$450
Modern (new)
$2,500
Difference
$2,050more new
Cross-Match Engine · Pro
What pairs with this?
Reverse-match works both ways. Point us at a receiver and we surface compatible vintage speakers and turntables — matched on power, impedance, and era. Point us at a pair of speakers and we surface receivers with enough headroom to drive them cleanly. Available on Pro and Flipper Pro.
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