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DIY DIY amp club V2, Post your DIY amp here

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jazzy939
post Jan 21 2010, 06:14 PM

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Hello ting.mike!
Welcome aboard! biggrin.gif
Keep us posted with your troubleshooting progress.. we could certainly learn a thing or two from your troubleshooting work..
I started the same way too! biggrin.gif
Do you have your own blog to share?

QUOTE(ting.mike @ Jan 21 2010, 03:51 PM)
Hello all.. this is my first post at lowyatt. tongue.gif tongue.gif

I own a 4ch Beta22 which was built by Indonesian amplifier designer psychaudio. At the moment I'm also troubleshooting an SSMH amp which a friend of mine, ian_trooper built. It sounded awesome for a while, but then it goes kaput! I dismantled everything, while at the same time am sourcing a better case for it. smile.gif

My DIY skills mostly revolve around breaking up stuff and making my own cables. tongue.gif
*
ting.mike
post Jan 21 2010, 10:35 PM

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QUOTE(jazzy939 @ Jan 21 2010, 05:14 PM)
Hello ting.mike!
Welcome aboard! biggrin.gif
Keep us posted with your troubleshooting progress.. we could certainly learn a thing or two from your troubleshooting work..
I started the same way too! biggrin.gif
Do you have your own blog to share?
*
Hi Jazzy,
I suck at trouble shooting.. anyway psychaudio pointed out to me that one of the resistors, R2 (or R8, can't remember which channel it was) blew up. I really am not sure what caused it. Silly me, instead of just replacing the R2, I went and dismantled everything. doh.gif doh.gif
Actually I really want to get the SSMH re-cased in a nicer enclosure, since the only thing preventing me from using that amplifier more is the crappy 1/4 jack and case my friend used to build it. tongue.gif

So, now everything is dismantled. It'll probably be a while before it's back and running. I have to make time to get some resistors first. tongue.gif

The next time I build it, I will use a bigger heatsink for the mosfets, since the default heatsinks run way too hot. tongue.gif

I don't have a personal blog, but I am working on this site called www.headfonia.com. Please go easy on the reviews though, as I'm quite a noob when it comes to doing reviews. rclxub.gif rclxub.gif rclxub.gif

jazzy939
post Jan 21 2010, 10:55 PM

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From: Beaumont, Baile Ath Cliath, EIRE.



Hi!
Take it easy, one step at a time.. wink.gif

Dismantling is EASY work.. we can get carried away..! Hahahaha..
MOSFETS are heat monsters! Make sure you satisfy the heat dissipation requirements.

headfonia? Will have a look! Thanks.

Have fun! biggrin.gif

QUOTE(ting.mike @ Jan 21 2010, 10:35 PM)
Hi Jazzy,
I suck at trouble shooting.. anyway psychaudio pointed out to me that one of the resistors, R2 (or R8, can't remember which channel it was) blew up. I really am not sure what caused it. Silly me, instead of just replacing the R2, I went and dismantled everything.  doh.gif  doh.gif
Actually I really want to get the SSMH re-cased in a nicer enclosure, since the only thing preventing me from using that amplifier more is the crappy 1/4 jack and case my friend used to build it. tongue.gif

So, now everything is dismantled. It'll probably be a while before it's back and running. I have to make time to get some resistors first. tongue.gif

The next time I build it, I will use a bigger heatsink for the mosfets, since the default heatsinks run way too hot. tongue.gif

I don't have a personal blog, but I am working on this site called www.headfonia.com. Please go easy on the reviews though, as I'm quite a noob when it comes to doing reviews.  rclxub.gif  rclxub.gif  rclxub.gif
*
ting.mike
post Jan 22 2010, 02:12 AM

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QUOTE(jazzy939 @ Jan 21 2010, 09:55 PM)
Hi!
Take it easy, one step at a time.. wink.gif

Dismantling is EASY work.. we can get carried away..! Hahahaha..
MOSFETS are heat monsters! Make sure you satisfy the heat dissipation requirements.

headfonia? Will have a look! Thanks.

Have fun!  biggrin.gif
*
Been reading through the pages.. you guys are really hardcore! thumbup.gif thumbup.gif thumbup.gif
Love that F5 built by cchua.

This post has been edited by ting.mike: Jan 22 2010, 02:13 AM
jazzy939
post Jan 22 2010, 07:40 AM

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From: Beaumont, Baile Ath Cliath, EIRE.



He's the hardcore one! tongue.gif
Count me out! wink.gif

Yes, the F5 is one kickass amp.. I almost build one, fortunately I already have one that I really like and it's kinda hard to justify to the Home Minister, why I need another amp! Hehehehe.. tongue.gif


QUOTE(ting.mike @ Jan 22 2010, 02:12 AM)
Been reading through the pages.. you guys are really hardcore!  thumbup.gif  thumbup.gif  thumbup.gif
Love that F5 built by cchua.
*
wui223
post Jan 22 2010, 10:12 AM

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QUOTE(jazzy939 @ Jan 22 2010, 07:40 AM)
He's the hardcore one!  tongue.gif
Count me out! wink.gif

Yes, the F5 is one kickass amp.. I almost build one, fortunately I already have one that I really like and it's kinda hard to justify to the Home Minister, why I need another amp! Hehehehe..  tongue.gif
*
OMG... F5 in malaysia?
jazzy939
post Jan 22 2010, 10:36 AM

reel is real
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From: Beaumont, Baile Ath Cliath, EIRE.



Yes.. check out previous postings.. wink.gif
ting.mike
post Jan 22 2010, 10:46 AM

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QUOTE(wui223 @ Jan 22 2010, 09:12 AM)
OMG... F5 in malaysia?
*
I bet there are many F5s in malaysia. I've got two myself. The F5 in my desktop keyboard and the F5 in my laptop keyboard. My wife's laptop also has an F5 I suppose. whistling.gif whistling.gif

Hehehehe... wonder how the K1000 AKG sounds out of the F5.
jazzy939
post Jan 22 2010, 10:48 AM

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Very funny ting.mike! For a moment there you got me too!!!


ting.mike
post Jan 22 2010, 10:50 AM

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Great way to start the day, eh? biggrin.gif
wui223
post Jan 22 2010, 12:07 PM

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QUOTE(ting.mike @ Jan 22 2010, 10:46 AM)
I bet there are many F5s in malaysia. I've got two myself. The F5 in my desktop keyboard and the F5 in my laptop keyboard. My wife's laptop also has an F5 I suppose.  whistling.gif  whistling.gif

Hehehehe... wonder how the K1000 AKG sounds out of the F5.
*
I have read lots of review saying K1000 is legendary , but how great it is left unknown to me.

Listen is to believe. Anyone want to help me out? cool.gif
LittleGhost
post Jan 22 2010, 12:14 PM

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^hang two speaker drivers across your ears to emulate the k1000.

PROBLEM SETTLED.
ting.mike
post Jan 22 2010, 12:46 PM

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QUOTE(LittleGhost @ Jan 22 2010, 11:14 AM)
^hang two speaker drivers across your ears to emulate the k1000.

PROBLEM SETTLED.
*
That's a good one. rclxms.gif rclxms.gif rclxms.gif

LittleGhost, I notice that you design and build amplifiers. Just want to ask though, is there a good source for portable-size hammond casing in Malaysia?

LittleGhost
post Jan 22 2010, 01:00 PM

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i usually get them from farnell. Though their price is far from being ideal. I don't think you can get them elsewhere over here in malaysia.

Still, they make good standard cases for a variety of board sizes.

i won't get them personally for loose builds, but I'd really get them for perfection purposes biggrin.gif


ting.mike
post Jan 22 2010, 01:08 PM

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Yes, the Hammonds aren't cheap.. only good amps should be put inside. biggrin.gif

I found a good casing for the SSMH, but the top and bottom doesn't open, only the front and back. Bummer. Pretty hard to do point to point on that box. tongue.gif
nanhifi
post Jan 22 2010, 02:32 PM

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QUOTE(gabanyayaya @ Jan 19 2010, 10:09 PM)
nanhifi

if you wish to get amps and speaker used item is a popular option with 'fraction' of the cost....currently hifi4sales.net is the best to scout around for different make and models.....

if i were you i do the macho man always do.....diy. I think bee amp and is fairly good amp even i never ever experience how does it sounds like.....maybe you need to replace all parts to some 'audiophile' item or a good quality one.
where do you stay anyway???? perhaps maybe i could have some educational tour to your place.....

somebody in hifi4sales.net also is selling an amp casing with a big heatsink.....try there....
*
The bee amp is a kind of what I call greening the classics. The topology are classics and simple but have been tweaks by me to get the best for it kind. Since it have pretty big bass and high frequency is linearity so in most cheap component used in wiring (RCA, CD Player, computer sound) it will me a good match. If you got a very high end component such as a good CD player with a real flat preamplifier this bee amp will make a big bass so it maybe not very matching here. But for the cost i spend in this amplifier is a worth to me. In upgrade this bee amp I think I have push the limit for this kind of amplifier topology. tongue.gif

Yeah finally there are diy massive heatsink sold in Malaysia icon_rolleyes.gif . I got a pre make aleph power amplifier (Class A Build on 2006) but so hard to find a good heatsink. The diy casing, I must see it first so hope it fit on my dual big toroid transformer (1kw from Norway) and those stock Capacitors . More hope the heatsink is capable to absorb those very-very hot MOSFET.
This aleph amplifier will be my reference amp for my next project.

I now stay at Sri Kembangan but maybe on this year on Jun I will move to Nilai Negeri Sembilan.

Thank you gabanyaya for this url. glad the diy community are now growing in malaysia...

wui223
post Jan 22 2010, 04:02 PM

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QUOTE(nanhifi @ Jan 22 2010, 02:32 PM)
The bee amp is a kind of what I call greening the classics. The topology are classics and simple but have been tweaks by me to get the best for it kind. Since it have pretty big bass and high frequency is linearity so in most cheap component used in wiring (RCA, CD Player, computer sound) it will me a good match. If you got a very high end component such as a good CD player with a real flat preamplifier this bee amp will make a big bass so it maybe not very matching here. But for the cost i spend in this amplifier is a worth to me. In upgrade this bee amp I think I have push the limit for this kind of amplifier topology.  tongue.gif

Yeah finally there are diy massive heatsink sold in Malaysia  icon_rolleyes.gif . I got a pre make aleph power amplifier (Class A Build on 2006) but so hard to find a good heatsink.  The diy casing, I must see it first so hope it fit on my dual big toroid transformer (1kw from Norway) and those stock Capacitors . More hope the heatsink is capable to absorb those very-very hot MOSFET.
This aleph amplifier will be my reference amp for my next project.

I now stay at Sri Kembangan but maybe on this year on Jun I will move to Nilai Negeri Sembilan.

Thank you gabanyaya for this url. glad the diy community are now growing in malaysia...
*
Im staying at Seri Kembangan also. maybe we can have a DIY meeting session smile.gif
jazzy939
post Jan 22 2010, 04:08 PM

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Aik? 'DIY meeting' 2 persons only? Sounds like a 'date'.. HAHAHAHA laugh.gif
wui223
post Jan 22 2010, 04:14 PM

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QUOTE(jazzy939 @ Jan 22 2010, 04:08 PM)
Aik? 'DIY meeting' 2 persons only? Sounds like a 'date'..  HAHAHAHA laugh.gif
*
true also, i know LittleGhost is staying around also.. hehe
maybe we could make a gathering of DIYers, the more the merrier
gabanyayaya
post Jan 22 2010, 07:32 PM

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QUOTE(wui223 @ Jan 22 2010, 05:14 PM)
true also, i know LittleGhost is staying around also.. hehe
maybe we could make a gathering of DIYers, the more the merrier
*
where got meeting for 3 peoples.....no fun.....we must ask nanhifi first if he willing to be the host????

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