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In Reply to: RE: What is the best arrangement to get punchy bass 50 - 150 hz? posted by Chris O on March 31, 2012 at 17:48:20
A "modern power supply", non critical L1, no cap over 50 uF., no L over 2 HY, good internal wire, low DCR power transformer. Bass to die for !!
Jeff Medwin
Follow Ups:
mid/upper bass rather but agreed that speedy and very nice.
Driving a Bose wave radio speaker with a LESS DC Coupled 12AX7 to 2A3 amp would not quite make the sound I am looking for.;-)
Stacked multi-way horns are disjointed and passe. You should have just done a Synergy Horn where it will be a point source and phase coherent.But we will never get around the need for a good audio amp to make it go.
You can do all the name calling you want, but you won't beat the performance of a 7B4 DCed to a 2A3 when its done exactly as Serious Stereo currently does it.
Jeff Medwin
Edits: 04/01/12 04/01/12
"LESS" instead of LSES, acronym for "low stored energy supply".Study a AE TD15M Chris (and its motor design), IF a direct radiator woofer is in the cards.
Jeff
Edits: 04/02/12
To match your efficient pretty wood horn tweeter, I would put a single 18" or 21" woofer in a LARGE pretty wood cabinet with a very large port on the bottom similar to what B&W does for its 801. Efficiency = dynamics. You should be able to get 99db/watt at 50Hz before any baffle step compensation. This can be part of your 3-way with a 95-99 db/watt 10" midbass crossed LR4 at 1.1Khz to match the 90 degree polar response of your pretty wood horn tweeter.
Now you can start to put your walls and corners to work for you to smooth out the bass modes and gain efficiency. Instead of a separate subwoofer, you could build another pair of these woofers for a more uniform timbre.
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