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5th May 2011, 12:54 PM
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#1 |
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diyAudio Member
Join Date: Feb 2009
Location: Lisbon
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CLASS A TUBE AMPLIFIER FOR TWEETER
How many watts are needed in a tube amplifier class A to drive 4 of this tweeters (active crossover with minidsp) ? thanks !
Fountek neo cd 3 Sensitivity 93dB/1m/2.83v Power handling 17W nominal,40W max Frequency range 1,400-40,000Hz Nominal impedance 7 ohm |
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5th May 2011, 01:16 PM
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#2 |
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diyAudio Member
Join Date: Nov 2004
Location: home sweet home
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are the tweeters in series? parallel? combined?
how many watts it takes depend on the resistance, therefore it depend how they are wired and on spl you need you need to specify how loud you want, that dictates the watts you need btw: it does not matter if the amp is class A or not, watts are watts... |
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5th May 2011, 01:21 PM
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#3 |
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diyAudio Member
Join Date: Feb 2009
Location: Lisbon
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wired in paralell , 2 for each channel. for bass i have a 150w amp , mids another 150w amp , i need a 3d amp for this tweeters.
Last edited by lduarte1973; 5th May 2011 at 01:27 PM. |
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5th May 2011, 01:27 PM
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#4 | |
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diyAudio Member
Join Date: Jul 2010
Location: Sat Down
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Quote:
12 Watts into 7 Ohms is 12 Watts 12 Watts into 3.5 Ohms is 12 Watts
__________________
"To err is human.. to make a real balls-up requires a computer" |
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5th May 2011, 02:48 PM
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#7 | |
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diyAudio Member
Join Date: Nov 2004
Location: home sweet home
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Quote:
now when you have resistance, you need to provide an information how loud at what distance...and there you go! from sensitivity you get watts required congrats! |
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5th May 2011, 02:54 PM
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#8 | |
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diyAudio Member
Join Date: Feb 2004
Location: South Wales
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Quote:
A quick test with any old amp will give you an idea, based on that and the power it was running, design the SE to supply.... Maybe a Big ole 845 amp might do it I dunno... TOO many variables to say exactly how much power you'll need... The size, decorations, shape, and floor/wall coverings in/of your room will affect the perceived power of the HF system, as well as speaker-placement In that room, so you really need to do some testing and see.... |
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5th May 2011, 03:13 PM
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#9 | |
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diyAudio Member
Join Date: Feb 2009
Location: Lisbon
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Quote:
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5th May 2011, 03:16 PM
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#10 |
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diyAudio Member
Join Date: Apr 2011
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BiAmp (Bi-Amplification - Not Quite Magic, But Close) - Part 1
very interesting discussion on the topic. |
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