Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: Mar 2008
Posts: 1,378
connoisseur
|
OP
connoisseur
Joined: Mar 2008
Posts: 1,378 |
Since this amp seems very simple to put together, if you really wanted to go DIY you could do component upgrades. Most of the time they are transformer or capacitor upgrades. Some believe that component upgrades can push "cheap" equipment with good circuitry designs into something that's great. Tried looking up mods for this amp, couldn't find much. Chris is right, you have to be careful with Class D type amps. Tom will upgrade the boards to whatever caps you want. You can either have him buy them, or mail the caps, etc. to him. He'll do the soldering for you. I asked Tom about an upgrade of the power supply caps from 4700uF caps to 10000uF caps. He said each one would cost about $15 more because he does not buy them in bulk. He said he would not recommend spending money on that though because it was just not worth it (I would not really hear any difference). I trusted his opinion and went with the stock caps. He did say that the toroid upgrade was a wise choice for multiple amps. I can tell you from looking at what is on the board, these are high quality components.
LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: Mar 2008
Posts: 1,378
connoisseur
|
OP
connoisseur
Joined: Mar 2008
Posts: 1,378 |
Took about 2 hours, and it isn't the prettiest thing now, but I have it all wired now except for the toroid. Hoping it will come tomorrow of Saturday. I used 12 gauge wire to connect the power supply to the amps, and it was a tight fit (it's where I spent most of the time). I'll probably go with 14 gauge in the permanant installation.
LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: Dec 2007
Posts: 7,786
axiomite
|
axiomite
Joined: Dec 2007
Posts: 7,786 |
Very cool Steve! I have always wondered about DIY amps.
Fred
------- Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: Dec 2008
Posts: 6,928
axiomite
|
axiomite
Joined: Dec 2008
Posts: 6,928 |
Kewwl! thanks for posting pictures, Steve. It looks like something I might want to try as well.
Half of communication is listening. You can't listen with your mouth.
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: Aug 2009
Posts: 6,015
axiomite
|
axiomite
Joined: Aug 2009
Posts: 6,015 |
This isn't looking too bad. I was originally thinking you had to solder all of the pieces onto the boards. I may have to give something like this a try.
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
|
shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
yeah, if I'm not mistaken they are in some type of screw or tensioned socket? Just when you get this thing all juiced up and the capacitors are full, don't touch anyting.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: May 2003
Posts: 18,044
shareholder in the making
|
shareholder in the making
Joined: May 2003
Posts: 18,044 |
Nice! Where'd you get the RCA connectors?
I am the Doctor, and THIS... is my SPOON!
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: Mar 2008
Posts: 1,378
connoisseur
|
OP
connoisseur
Joined: Mar 2008
Posts: 1,378 |
Yes, the caps are my main worry Randy. I'll probably have to let it sit for a long while unplugged to let the caps discharge before I'm ready to take it apart for the final build.
The sockets are all screw down. Real easy.
Once the toroid arrives, my plan is to test it out first using my iPhone as the input, and my old VP150 as the sacrifical lamb before I even think about hooking it into my system. I'll test one channel at a time with the 6 ohm load of the VP150 and make sure everything looks good. If it all checks out, I'll hook it into my main system and have it drive both M80s using the AVR-3806 pre-outs.
LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: Mar 2008
Posts: 1,378
connoisseur
|
OP
connoisseur
Joined: Mar 2008
Posts: 1,378 |
Nice! Where'd you get the RCA connectors? I just cut apart an old cable I had lying around for now. I'll buy RCA connectors with solder tabs when I'm ready for the permanent installation.
LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7
|
|
|
Re: Gonna Try Building a 1kW Class D Amp for Only $396
|
Joined: May 2003
Posts: 18,044
shareholder in the making
|
shareholder in the making
Joined: May 2003
Posts: 18,044 |
That's what I figured, but I was thinking the wires inside must have been TEENY.
I am the Doctor, and THIS... is my SPOON!
|
|
|
Forums16
Topics24,945
Posts442,484
Members15,617
|
Most Online2,082 Jan 22nd, 2020
|
|
0 members (),
1,228
guests, and
6
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
|