Brian Gaff wrote:

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Well obviously cannot see the picture,


** That's way I provided a concise, verbal description for you.


As I say, they did need bass enhancement to really sound rich.


** As you fit more woofers to the same enclosure, the box resonance goes up and up so to compensate the internal volume must also.

Having only 4 litres of enclosure per driver, the Bose 2201 likely rolled of sharply below 110Hz and needed 12dB or more of bass boost at 50Hz to sound flat.

But having 22 drivers makes low frequency efficiency quite high, over 100dB SPL per watt at a guess.


..... Phil