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Speakers for low powered SET amps
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Posted on November 23, 2015 at 11:50:32 | ||
Posts: 9730
Location: East of Kansas City Joined: January 10, 2005 |
Below, people are discussing speakers, What about wire to drive the speaker folks ??? Most high efficiency speaker implementations I see today are grossly mis-wired, and so, people revert to the use of 8 Watt amps, when a 2 Watt amp with proper wire, amp to crossover, crossover to drivers, will work wonders. Golly, Mr. Bob Fulton ( and I, as his California representative ) had wire covered back in the early 80s!! I spent three hours last night prepping 26 different lengths of 12 AWG cable, triple checking paralleled lengths ( I use Fulton's 57 1/8th inch increments ) for the up-coming ALTEC A-4 re-do of wire. Have 6 more lengths to prepare. The MINIMUM amount of wire I will use between a crossover and a 15 inch woofer is TWO paralleled 12 AWG runs ( effectively 9 AWG ), PER TERMINAL, to get as good a transfer efficiency and sonics as affordable and possible. Got no jack for Siltech !! Between amp and crossover, in 2015, I parallel three to four 12 AWG runs of wire, depending upon length, three is OK for short runs. My A-7s will use FIVE multiple lengths of 57 1/8th inches, which is 285.625 inches long, or 23.80 feet. At FOUR runs in PARALLEL, per polarity, that is 16 runs, or 380 feet of wire to construct a stereo pair of 23.8 feet cables. But, its effectively 6 AWG, yet due to small gauge ( 12 ), and silver content, it has better bandwidth than a single 6 AWG run. Fun. I think MOST people miss the boat on high transfer efficiency, so they go to crummy 300B amps, and biamping with a different time constants through the two amps, and the MASKING of an active crossover, added needlessly to the chain. Of course, I am ass/u/me ing the person KNOWS how to build a good triode SET, which is a big stretch from all I see and hear. Enough of my rant. Have fun, I certainly DO !! Jeff Medwin |
Phy-Hp, posted on November 23, 2015 at 17:14:27 | |
Posts: 4749
Joined: April 7, 2000 Contributor Since: September 9, 2000 |
No crossover. Single driver. Filtered phy-hp super tweeter. |