Kofi Annan in: "Seven-Pound Mono Amp" - diyAudio
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Old 23rd November 2006, 06:28 PM   #1
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Default Kofi Annan in: "Seven-Pound Mono Amp"

Finalized a seven-pound mono amplifier yesterday. Loud, LOUD L O U D sound for a mono amp and no distotion whatsoever. Its very small-- fits in the crook of your arm-- but it does get awfully hot.

Any advice on further modifications to get the gain down would be much appreciated. Just can't seem to turn it down low eneough to avoid ear-splitting volume levels.

See for yourself:


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Old 23rd November 2006, 06:36 PM   #2
SY is offline SY  United States
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There's something of a squawk in the upper midrange.

Heartiest congratulations! If it's your first, I can break the news to you: the days of sleep are over.
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
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Old 23rd November 2006, 06:36 PM   #3
Fuling is offline Fuling  Sweden
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Congratulations to a great piece of work!
Hope you had plenty of fun "building" it!
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Old 23rd November 2006, 08:31 PM   #4
chrisb is offline chrisb  Canada
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Originally posted by Fuling
Congratulations to a great piece of work!
Hope you had plenty of fun "building" it!

yup definitely not (yet) a DIY project.

be advised however, that the unit's power consumption will increase over time - and if you think it's loud now, wait until it's fully broken in (18-30months)

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Old 23rd November 2006, 09:03 PM   #5
Zen Mod is offline Zen Mod  Serbia
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you'll certainly get used to loudness and efficiency of this class.......
my Papa is smarter than your Nelson !
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Old 23rd November 2006, 11:01 PM   #6
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So how long before you go for the 7.1 surround sound experience?
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
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Old 24th November 2006, 12:32 AM   #7
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Just be glad you only 'built' a mono-block.

If you ended up with a stereo unit, there would be even more cross-talk to contend with.

Congrats, buddy. Fatherhood is a wonderful thing: be faithful to it.
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Old 24th November 2006, 01:26 AM   #8
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I expect the damping factor needs to be corrected several times
a day.
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Old 24th November 2006, 02:03 AM   #9
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Congrats Kofi.

When are you planning to expose to soldering gun... and i guess in 15-18 months you'll need a new Mac so the younin' will have their own.

community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
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Old 24th November 2006, 04:48 AM   #10
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Default New gear..

Congratulations on your newest acquisition ....These are quite the tempermental units & will require constant servicing....
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