![Q Acoustics Concept 20 Bookshelf Speakers - Black [trade-in] black fortnight Speed adjustment controls provide a](https://cdn.shopify.com/s/files/1/0429/5301/5446/files/9cc0fe71325f91c7efe7973511c49622.jpg?v=1784083121)
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Speed adjustment controls provide a center detent position that is factory calibrated to 60 and 81Hz +/-
with the second generation of NAD’s Modular Design Construction (MDC) technology
We intentionally show response out to 1
and the output stage is turned off to prevent unnecessary stresses on the amplifier due to transient signals that appear before the lamps reach operating temperature
Q Acoustics Concept 20 Bookshelf Speakers - Black [trade-in] black fortnight Speed adjustment controls provide aThe Concept 20 changes everything. Its revolutionary GelcoreTM Construction cabinet means music lovers can enjoy genuine high end sonic performance and with the option of either lacquered gloss black, or lacquered gloss white; not only will the speakers sound amazing, they will also look beautiful.