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Old 28th January 2013, 07:33 PM   #1171
a.wayne is offline a.wayne  United States
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You should try one, much better than the little wimp's you adore ...
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Old 28th January 2013, 07:45 PM   #1172
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well. i'm not running 2-3ohm speakers
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Old 28th January 2013, 07:51 PM   #1173
a.wayne is offline a.wayne  United States
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neither am I ...

You would be surprised at how much of a difference it makes , regardless of your speakers, a big un , tends to do big very well , look at NP, production amplifiers for guidance, everyone i have ever owned or saw had more outputs than sand ...

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Old 28th January 2013, 08:11 PM   #1174
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lots of outputs. yes. but no one have that amount of bias VS rail voltage
5.52A bias makes it good for over 480W class A power at 8ohm. but it is voltage limited at around 50W at 8ohm with +/-32V rails.

Last edited by AudioSan; 28th January 2013 at 08:15 PM.
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Old 28th January 2013, 08:16 PM   #1175
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Quote:
Originally Posted by a.wayne View Post
neither am I ...

You would be surprised at how much of a difference it makes , regardless of your speakers, a big un , tends to do big very well , look at NP, production amplifiers for guidance, everyone i have ever owned or saw had more outputs than sand ...

I agrre with Wayne on this one. Unless you got old school, lighteight, HE drivers, the extra grunt makes a difference. Example. JBL 2226H (600W motor)vs Altec 515(200W motor). Similar specs(not VAS or cone weight), but very different results from same power level.

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speaking of that (and being in jeopardy of going off topic ) it's always confusingly amusing , when ppl are amusingly confusing efficiency ..... and sensitivity ;

not speaking about you and your setup , even if you were in few steps close to making same mistake .... just differentiate power needs when using old school 96db/W/m driver vs. modern 96db/W/m driver

old one is having 60W capacity vs. new one having 250W capacity

much lighter and agile moving ansamble vs. not so light and not so agile .....

yukyuk

edit: luckily - there are still few mnfctrrs , making new old school drivers
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Old 28th January 2013, 08:24 PM   #1176
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well. also here it is a matter of taste and money
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Old 28th January 2013, 08:40 PM   #1177
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Nuh uh.
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Old 28th January 2013, 09:09 PM   #1178
Renron is offline Renron  United States
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Quote:
Originally Posted by AudioSan View Post
lots of outputs. yes. but no one have that amount of bias VS rail voltage
5.52A bias makes it good for over 480W class A power at 8ohm. but it is voltage limited at around 50W at 8ohm with +/-32V rails.
And what's wrong with <480W Class A power???

LOL, I was just finishing the equation from ZM. Someday I may understand what he says. I never said I was going to build it!
I'm just trying to figure out what I want to build when I get some boards and Antek re-opens. I don't know squat and freely admit it. Just dreaming perhaps, but a F5T w/o diodes just might be the ticket to drive Seas Thors. 4Ohm
Not interested in SPL so much as low-mid volume grunt.
Glad to entertain ideas.
Ron
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Old 28th January 2013, 09:32 PM   #1179
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well. i can think of a copple of things. wallet heat mass and weight for starter
and to acctualy get 480W output you need some high voltage. about +/-90V.
2*90V*5.52A=994W dissipation pr ch at idle. and this is minimum

if you want to get say 100W class A at 4ohm, you need about 3.6A bias. and around +/-32V rails(fully loaded)
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Old 28th January 2013, 09:50 PM   #1180
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AudioSan,
You know that your about to have a lot of builders coming on line. Sure hope you got some extra time
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