Vintage Boutique Tour
Liam will walk you through the Acoustic Research AR-3a.
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 Acoustic Research AR-3a.
Real-time streaming voice — specs, history, restoration pain points, market value.
Sonic Similarity Analysis
Both represent sealed-box designs prioritizing accuracy and controlled bass over sensitivity, serving as affordable reference monitors punching above their price class. The LS50 Meta's neutral British voicing and compact form delivering surprising bass depth echoes the AR-3a's revolutionary acoustic-suspension approach that proved small speakers could match large ones for accuracy.
Acoustic Research AR-3a
vs.
KEF LS50 Meta
86 dB
Sensitivity
85 dB
4–4 Ω
Impedance
8–8 Ω
10–75W
Power Handling
40–100W
3-way
Driver Count
2-way
0.75in dome tweeter, 1.5in dome mid, 10in woofer
Driver Config
1in vented aluminum dome tweeter, 5.25in Uni-Q mid/woofer
Sealed
Enclosure
Bass-reflex
Bookshelf
Size
Bookshelf
38Hz – 20kHz
Frequency Response
47Hz – 45kHz
28 lbs
Weight
17.6 lbs
Vintage (used avg)
$550
Modern (new)
$1,600
Difference
$1,050more 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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