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Old 17th January 2011, 04:17 AM   #1
Ryssen is offline Ryssen  Sweden
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Default Describe the sound of F3

I have a F3 amp,and I made a couple of 2way speakers.The bas is Scan speak 21w/8554 and i think therea a little lack of bass,does the F3 lack bass?Or is it the basses.
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Old 17th January 2011, 04:33 AM   #2
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Every one of these amplifiers has different characteristics,
and I would categorize the F3 as having very fine midrange
and a sweet, slightly soft top end. It is not known for
having much punch and control on the bottom end, and has
a relatively low damping factor of about 8.

If you want more and better bottom end, you are probably
looking at an F5. Myself, I would consider bi-amping
the speakers.

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Old 17th January 2011, 04:50 AM   #3
Ryssen is offline Ryssen  Sweden
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Yes I have built an F5,I might try that one.
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Old 17th January 2011, 06:31 AM   #4
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I have tested several modifications of F3 schematics and achieved more impressive bass by increasing an idle current and decreasing voltage amplification factor (increasing NFB) from 5 to 2.
As for improving highs, one may disconnect the chain for current source modulation, but this makes less bass at the same time.
If for Bi-Amping, I would definitely use F3 with disconnected modulation.
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Old 21st February 2011, 10:24 PM   #5
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Im listenning on the F5 through my 2way diy speakers,and it has more bass/punch than F3.
Now mr Pass could you consrtuct an amplifier that combines F5/F3 in one amplifier that would be nice..
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Old 22nd February 2011, 01:54 AM   #6
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P.S how could Aleph J be descrived to sound?
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Old 22nd February 2011, 10:42 AM   #7
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Old 22nd February 2011, 10:53 AM   #8
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