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Old 29th October 2011, 04:11 PM   #441
whaleman is offline whaleman  United States
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HiFimeDIY T1, pics from today...added some 27 ohm resistors to the inputs.
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Old 3rd November 2011, 12:23 AM   #442
poler is offline poler  United States
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Hi Tangmonster, how do those L15D modules sound? Thanks
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Old 3rd November 2011, 09:14 AM   #443
Kjeldsen is offline Kjeldsen  Denmark
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Quote:
Originally Posted by Baldin View Post
Like the enclosures .... where to get these
Thanks Baldin
Not exact the same but pretty close.

Wholesale beautiful full aluminium pre AMP BOXchassis for DIY

freight becomes quite huge, for chassis this size.
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Old 3rd November 2011, 09:30 AM   #444
tangmonster is offline tangmonster  South Africa
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Quote:
Originally Posted by poler View Post
Hi Tangmonster, how do those L15D modules sound? Thanks
I have only used them for the subwoofer (<80hz).
Haven't used them on full range.

very happy with the efficiency and simplicity. sounds great for my sub woofer use.

One thing i can say is you HAVE to use them in either bridge mode into single 8 ohm load. Or you have to drive the one out of phase with the other one.

I had MAD buss pumping when I tested them for the sub woofer with both channels in phase for high volumes

simple opamp inverter on the one channel with the output polarity switched is fine.

For lower volume it will probably be fine but not high volume low frequencies.

I had audible loud noises (sounds something like hitting a stick on the floor) when board switched off on over voltage due to the buss pumping. All disappeared once i connected them up out of phase.
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Old 3rd November 2011, 02:53 PM   #445
tamphist is offline tamphist  Europe
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Quote:
Originally Posted by Baldin View Post
Like the enclosures .... where to get these
Thanks Baldin
Couple years ago from eBay.
Don't know where to get them now,
but there are look a likes.
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Old 3rd November 2011, 04:28 PM   #446
sweetperfume is offline sweetperfume  India
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Default need help

i'm trying to design my class d amp using ir2110 but something is going wrong....plz anybody help me out....my head is just blown out
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Old 5th November 2011, 09:47 AM   #447
Baldin is online now Baldin  Denmark
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Quote:
Originally Posted by sweetperfume View Post
i'm trying to design my class d amp using ir2110 but something is going wrong....plz anybody help me out....my head is just blown out
If you want help, I think you need to move this question to the regular Class D section (not the Gallery). And we need a lot more details to be able to help: Schematic, pictures, description of what is working and what is not!

Best regards Baldin
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Old 8th November 2011, 08:27 AM   #448
momomo67890 is offline momomo67890  United States
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2x L15D v3

awful wiring i might say since holidays are sneaking up i had to do the wiring in a afternoon it sucks and it doesn't look safe ohh yes and it has no general color scheme its just kinda random wires going every where. i replaced all the caps on one of the amp boards and need to do it on other one, the channel with replaced caps takes about 5 seconds to turn on after the side. i didn't have any bus pumping down to 45hz this is as far as ill ever go. ohh yes i didnt end up with any ground loop thanks to the sticky thing on star grounding even though i didn't do it correctly it worked out

i was shocked it work considering i hadn't in my life ever thought of putting a outlet together not to mention a amp 8 weeks ago

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Old 9th November 2011, 06:23 AM   #449
poler is offline poler  United States
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My humble entry. A mundane Sure 4 channel amp.

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Old 9th November 2011, 06:52 AM   #450
igor0203 is offline igor0203  Slovenia
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Looks great!
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