Get Free, Friendly, Expert Advice
Call 1-866-244-8796 or email

Designed and Manufactured in Canada Since 1980


AxiomAudio Blog

Outdoor Speaker Placement

Speaker Placement: Unusual Room Layouts and Elevating Speakers

Positioning Floorstanding Speakers

Wall'O'Fame
Greetings fellow Axiom owners...
HG Rosewoods Part 3
Who's Online
3 registered (Gary Vose Sr, tomtuttle, MarkSJohnson), 120 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Financing
Forum Stats
13295 Members
11 Forums
22826 Topics
403266 Posts

Max Online: 378 @ 02/24/13 04:33 PM
Top Posters
Ken.C 17741
pmbuko 16259
SirQuack 13318
CV 11146
MarkSJohnson 10832
Meanwhile On Facebook

A very fond farewell party last night . . . we miss you Noreen!

Hope everyone's got their summer favourite playlists cued up for the weekend! W...

(y) Love this customer review of the M2s! "the first time listening to my new a...

These LFR1100 speakers in custom Eggshell White are on their way to Taiwan (yes,...

Page 2 of 14 < 1 2 3 4 ... 13 14 >
Topic Options
Rate This Topic
#334782 - 01/18/11 09:45 AM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: ClubNeon]
Adrian Offline
axiomite

Registered: 12/27/08
Posts: 6600
Loc: It's all about the location.
Make sure to post your progress on the build, Steve.
_________________________
Half of communication is listening. You can't listen with your mouth.

Top
#334786 - 01/18/11 10:01 AM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: ClubNeon]
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16259
Loc: Leesburg, Virginia
Gets your thumbs up… where? shocked
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

Top
#334797 - 01/18/11 11:12 AM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: Adrian]
SRoode Offline
connoisseur

Registered: 03/20/08
Posts: 1200
Loc: Fishers, Indiana, USA
Originally Posted By: Adrian
Make sure to post your progress on the build, Steve.


Will do. It's shipping today so I should have the parts by Friday. The first assembly will be quick and dirty just to get it going and test it out (it will be ugly to look at). It should not take more than a couple of hours to do this, so I should have my initial impressions this weekend (I wish I had a THD analyzer!). I think I may wind up buying a clamp on ammeter to measure amp current draw and use my sound meter to measure db output. I know this amp will use less power to get the same db output, but I would love to take some measurements against my AVR-3806. I do have an infrared thermometer, so I'll shoot the heatsink to see how hot it gets (open air).

The final assembly (time and money involved) will depend on how good it sounds wink
_________________________
2 M80s, 1 VP180, 4 QS8s, 2 EP800s, 4 Algonquins, 2 M3 VaSSallos

Top
#334798 - 01/18/11 11:39 AM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
tomtuttle Online   happy
axiomite

Registered: 06/20/03
Posts: 8268
Loc: Tacoma
Geektastic.

I'm interested in this. But I'm not really very good at soldering. Many posts in the linked thread go far beyond my current or desired level of electrical theory.

Pictures would be cool.

Thanks, Steve!
_________________________
bibere usque ad hilaritatem

Top
#334812 - 01/18/11 01:58 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: tomtuttle]
CatBrat Offline
axiomite

Registered: 08/05/09
Posts: 5801
Loc: Some random location
I've only done 2 builds. Back when I was an early teen. I bought 2 of those light kits that made lights flash in time with the music. The instructions were a little fuzzy concerning the orientation of the rectifier. I put it in the way it looked good to me, but when I first went to turn it on, it blew up in a pile of smoke. The second one, I turned it around and it worked just fine.

Top
#334821 - 01/18/11 03:32 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: CatBrat]
SRoode Offline
connoisseur

Registered: 03/20/08
Posts: 1200
Loc: Fishers, Indiana, USA
One of the pluses the lured me to this system was that you really do not need to solder anything for the initial quick and dirty hookup. All of the connections between the boards are done with screw terminals. Soldering is an option of couse down the road for external run and trip leds, power switches, and binding posts.

The other thing that lured me was all of the positive comments, and the quality of the parts involved. The Heavy Duty Power Supply uses Nichicon 100V, 105C, 4700uF capacitors (very good quality Japanese capacitors). I priced them out online and the best price I could find was about $14 a pop when buying less than 50 of them at a time... The power supply board has 6 of them, and he sells the whole board for $65 before an additional discount if you buy a kit.
_________________________
2 M80s, 1 VP180, 4 QS8s, 2 EP800s, 4 Algonquins, 2 M3 VaSSallos

Top
#334837 - 01/18/11 06:13 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: ClubNeon]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17741
Loc: NoVA
Wait, can you use them bridged with your M80s? I didn't think you could bridge amps when you were dealing with a 4 ohm load.
_________________________
I didn't do it, no one saw me, you can't prove anything.

Top
#334839 - 01/18/11 06:23 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: Ken.C]
SRoode Offline
connoisseur

Registered: 03/20/08
Posts: 1200
Loc: Fishers, Indiana, USA
These amps are rated down to 2 ohm individually, and will work bridged with a 4 ohm load. I also confirmed this with Tom before I bought them.
_________________________
2 M80s, 1 VP180, 4 QS8s, 2 EP800s, 4 Algonquins, 2 M3 VaSSallos

Top
#334840 - 01/18/11 06:25 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17741
Loc: NoVA
Sweet. Which model of amp is it?
_________________________
I didn't do it, no one saw me, you can't prove anything.

Top
#334841 - 01/18/11 06:43 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: Ken.C]
SRoode Offline
connoisseur

Registered: 03/20/08
Posts: 1200
Loc: Fishers, Indiana, USA
CDA-254. The 4 suffix designates 4 ohm stable. Although he only publishes it as 500W 8 ohm bridged, he does confirm it will also drive 4 ohm when bridged. Power will be slightly more, but not double. It will start clipping (>1% distotion) long before 1000W.
_________________________
2 M80s, 1 VP180, 4 QS8s, 2 EP800s, 4 Algonquins, 2 M3 VaSSallos

Top
Page 2 of 14 < 1 2 3 4 ... 13 14 >



Moderator:  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Home  |  Corporate Info  |  Products  |  Message Board  |  FAQs  |  Warranty  |  Site Map  |  Privacy Statement   |  Contact Us

©2014 Colquhoun Audio Laboratories Limited
All Rights Reserved.