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Old 27th February 2009, 03:51 PM   #3121
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Default Output power

Hello!
Can any body say me how is the output power with 16 Ohms speakers?
Thank you very much.
José Humberto
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Old 27th February 2009, 04:09 PM   #3122
AndrewT is offline AndrewT  Scotland
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roughly half the 8ohm power. You might get as much as 55% of the 8ohm power.
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Old 27th February 2009, 06:46 PM   #3123
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15W RMS? I´m not sure the power output of F5.
I hope will be enough for my speakers with 97dBWm
Thank you Andrew
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Old 27th February 2009, 06:51 PM   #3124
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In the average domestic space I think you could make your ears bleed.
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Old 27th February 2009, 06:54 PM   #3125
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15W into 97dB speakers is about the same as 150W into 87dB speakers.
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Old 27th February 2009, 06:57 PM   #3126
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Ok I´ll put the minimum gain when I´ll turn on.
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Old 27th February 2009, 07:02 PM   #3127
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You could always look at OTL amplification as those generally increase their power as impedance increases.
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Old 27th February 2009, 07:11 PM   #3128
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I´ve never been ear the Otl, but with the F3 and F4 run ok with more of 20 db of gain in the pream. I understan the F5 is more independient of F4, my favorite, to the preamplifier.
Excuse me for my bad English.
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Old 27th February 2009, 10:21 PM   #3129
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Default Power supply schematic

Hi
Where can I find the schematic for the F5 power supply?
I've seen folks make reference to it here on this thread but the F5 article that I downloaded from Mr pass's site does not show the PS schem.
I also looked to see if there was a Service Manual for the F5 with no luck..
I would just feel more comfortable using the proper PS schem..
Thanks for the help
Sean
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Old 27th February 2009, 10:28 PM   #3130
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Default Re: Power supply schematic

Quote:
Originally posted by dionisio
Hi
.......
Sean

http://www.firstwatt.com/downloads/F5-om_sm-080527.pdf
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