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Classic PWK: The Unmentionable


Travis In Austin

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12 hours ago, soundbound said:

Thank you for sharing. A man I admire! With horns less wattage is needed plus less motion for lower distortion.

 

I wonder if the unmentionable was Bose 901 that needs lots of wattage?

 

Bose did not release the sensitivity ("efficiency") of the 901.  As far as I can tell, the 901 needed approximately 20 times the power in watts as a Klipschorn to produce the same SPL at the same distance.  So 25 watts --> Klipschorn (as loudly as I've ever dared play mine ~~~ 110 dB @ 13 feet in my room) = 500 watts into the Bose 901.  Want to guarantee plenty of headroom?   A modest power amplifier of 100 w.p.c. into a Klipschorn would equal 2,000 watts per channel into a 901.

 

To properly power the Bose, you could get these:

McIntosh MC2KW

McIntosh MC2KW

You would need all 6 units for  2 channel stereo.  They can be yours for about $170,000.

OR

You could get this to power a couple of Khorns, for about $1,600:

a23+

 

 

 

 

 

 

 

 

 

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