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#376825 - 05/22/12 04:32 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
Ken.C Online   content
shareholder in the making

Registered: 05/03/03
Posts: 17739
Loc: NoVA
Sweet! Never thought of using a jewelry box type of thing as an amp cabinet. Was assembly pretty straightforward?
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#376829 - 05/22/12 05:58 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
SRoode Offline
connoisseur

Registered: 03/20/08
Posts: 1200
Loc: Fishers, Indiana, USA
It was. The only hard part was getting everything assembled in a relatively small space... Not much room to work.
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2 M80s, 1 VP180, 4 QS8s, 2 EP800s, 4 Algonquins, 2 M3 VaSSallos

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#376830 - 05/22/12 06:15 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
tomtuttle Offline
axiomite

Registered: 06/20/03
Posts: 8268
Loc: Tacoma
Just beautiful, Steve. I love it. Nice work!
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#376831 - 05/22/12 06:30 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: tomtuttle]
SBrown Offline
aficionado

Registered: 11/16/10
Posts: 812
Loc: Victoria,BC
That's nice and tidy! Good show.
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#376841 - 05/22/12 08:35 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
St_PatGuy Offline
axiomite

Registered: 03/07/05
Posts: 7395
Loc: Glendale, Arizona
Very cool, Steve! I like your creative use of the box. It does look very nice.
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#376845 - 05/22/12 09:24 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6720
Loc: The Peoples Republic of Il.

I like.
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#376857 - 05/22/12 11:29 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
INANE Offline
connoisseur

Registered: 02/04/04
Posts: 1660
Loc: Omaha, Nebraska
That's pretty damn cool.
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#376918 - 05/23/12 06:07 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
SRoode Offline
connoisseur

Registered: 03/20/08
Posts: 1200
Loc: Fishers, Indiana, USA
Thanks guys! I hooked up the M80s as a final test. I ran the amp at full blast (I-phone was the pre-amp and source)for 2 hours. No tripping, 100db peak output at 1m (both speakers were running), and when I shot the heatsink with the infrared gun, it measured 94F. Not a bad little amp!
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2 M80s, 1 VP180, 4 QS8s, 2 EP800s, 4 Algonquins, 2 M3 VaSSallos

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#377639 - 05/31/12 02:01 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
SRoode Offline
connoisseur

Registered: 03/20/08
Posts: 1200
Loc: Fishers, Indiana, USA
One thing I have noticed over the last week or so of listening is that the I-Phone just does not have enough "umph" to serve as an adeqaute pre-amp. When I hooked my Onkyo receiver up to the amp and used the pre-outs, I was really able to push the amp and the sound was great. So, I decided to hunt around for a little pre-amp (or headphone amp) for the amp I built. I finally decided on this one:

http://www.ebay.com/itm/Indeed-G3-Headph...=item3a699d3c70

It's a tube pre-amp/headphone amp, and it looks like a tweaker's wet dream. Some guys on another board had a chance to play with it and some have even modded it a bit:

http://rockgrotto.proboards.com/index.cgi?board=b&action=display&thread=7174#

It's on it's way from Hong Kong right now, but it won't be here for a couple of weeks. Has anyone here had any experience with this unit? I know some of you are into headphone amps.
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2 M80s, 1 VP180, 4 QS8s, 2 EP800s, 4 Algonquins, 2 M3 VaSSallos

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#377644 - 05/31/12 02:32 PM Re: Gonna Try Building a 1kW Class D Amp for Only $396 [Re: SRoode]
MarkSJohnson Offline
shareholder in the making

Registered: 09/27/04
Posts: 10830
Loc: Central NH
That's gotta be good when it's described as "it sounds with rich bass and clear treble for joy"! smile
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