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Old 24th March 2021, 05:00 AM   #1901
NOTADOG is offline NOTADOG  United States
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Join Date: Mar 2021
Location: The Cape
Haven't "sealed" everything down yet but the layout works and sounds great, terminals and rear panel all sorted. Love the box. Again, external brick so I can roll supplies (24v/2a sounds best so far). Will probably shorten and clean up wires on final fastening but no hums, hisses, or pops so if it ain't broke...
Attached Images
File Type: jpg 31103.1.jpg (56.4 KB, 702 views)
File Type: jpg 31102.4.jpg (50.4 KB, 698 views)
File Type: jpg 31105.1.jpg (78.6 KB, 693 views)
File Type: jpg 31106.1.jpg (72.5 KB, 697 views)
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Old 24th March 2021, 05:46 AM   #1902
NOTADOG is offline NOTADOG  United States
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Location: The Cape
Quote:
Originally Posted by MesaM View Post
Fun with an antique toaster - Using a 19vdc laptop power supply to yield ~35wpc, sounds quite nice (note that the tubes are props)... Have constructed several similar steampunky creations from this particular TI-clone board - Have since moved on to a few Pass-clone Class-A implementations.

This is phenomenal. Adore it.
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Old 24th March 2021, 07:11 AM   #1903
Yatsushiro is offline Yatsushiro  France
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Location: Normandie, France
Quote:
Originally Posted by NOTADOG View Post
Guess this is the place to show off my TPA3110 experiments.


Here's a little Bluetooth Boombox. First pic is final cleaned up version. A laptop brick plugs into a jack mounted on the back. Speakers are 4ohm. Were super bright/tinny so used a 1R10ufC low pass wired at the terminals. Sounds really decent, high WAF.
A couple of questions, as I have similar speakers. Are they 3" or 4"?, 4 or 8 Ohm?

Can you confirm your filter values? 1K resistor and a 10 microfarad capacitor?
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Old 24th March 2021, 03:55 PM   #1904
NOTADOG is offline NOTADOG  United States
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Quote:
Originally Posted by Yatsushiro View Post
A couple of questions, as I have similar speakers. Are they 3" or 4"?, 4 or 8 Ohm?

Can you confirm your filter values? 1K resistor and a 10 microfarad capacitor?

They are 4 ohm, amp plays much better with 4 IMHO. Speakers including the rubber surrounds are 4" wide, can't recall what they were listed at. An old Alibaba purchase.


Filter values are 1 Ohm resistor and 10 microFarad (uF) cap. I drew a crumby pic for you.
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Old 24th March 2021, 04:35 PM   #1905
Yatsushiro is offline Yatsushiro  France
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Thank you for your reply.

The speakers look the same as mine, Sonderlink, bought from AliExpress. I've used a number of them, 4" & 3", to convert old radios with BT and amps, but up till now have been able to build in ported boxes to great effect.

In my latest build, however, I can't build in ported boxes, so the speakers sound a bit bright as you stated.

I'll try a couple of LP filters using the info you've supplied to see how it changes the sound.

Thanks again.
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Old 29th March 2021, 07:17 PM   #1906
daniboun is offline daniboun  France
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Hi amigos,

Let me introduce my new little toy )

Dual Mono TPA3221 Amp. Really tiny but impressive : 134x59x90mm
Really well made, PCB exudes quality.

Spec :

- OPA1652
- Panasonic FC Power caps
- Anti Pop function / ON OFF
- WIMA caps
- Elna Audio Grade buffer caps
- Evox Film caps
- TPA3221 main chip
- PSU 15V / 7A

At first listening, amplifier is dead silent and sound awesome !
Will give a long listening test later vs Hypex vs Purifi.

Videos :

VID_20210329_205042
VID_20210329_205219

Some pictures in te meanwhile :

Click the image to open in full size.
Click the image to open in full size.
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Click the image to open in full size.

Last edited by daniboun; 29th March 2021 at 07:33 PM.
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Old 29th March 2021, 07:56 PM   #1907
pinnocchio is offline pinnocchio  Canada
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Cool design! Congrats!

Do
__________________
PREAMPs : AMB α10 + USSPA | LDR3x + USSPA | AMPs: AMB β24 | USSA5 | FSSA2 | MoFo | FC-100 | Modulus-686 | SimpelStark+ |
DACs : Mirand AK4490 + Discrete Output | Speakers : Troels Gravesen ATS-4 | Sagwee LT V3 |
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Old 5th April 2021, 04:25 PM   #1908
vdi_nenna is offline vdi_nenna  United States
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Class D Amp Photo Gallery
My first Class-D amp.
Monoblock IcePower 1000ASP.
Modual heat sink is attached to case extruded side panel.
Attached Images
File Type: jpg IcePower 1000asp_03.jpg (984.5 KB, 120 views)
File Type: jpg IcePower 1000asp_02.jpg (306.3 KB, 144 views)
File Type: jpg IcePower 1000asp_01.jpg (524.0 KB, 136 views)
File Type: jpg IcePower 1000asp_00.jpg (517.7 KB, 121 views)
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Old 5th April 2021, 04:31 PM   #1909
Cardone is offline Cardone
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Quote:
Originally Posted by vdi_nenna View Post
My first Class-D amp.
Monoblock IcePower 1000ASP.
Modual heat sink is attached to case extruded side panel.

Compliments for your first monoblock work.


Best regards
Cardone
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Old 5th April 2021, 05:21 PM   #1910
CliveJ9 is offline CliveJ9  United Kingdom
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Join Date: Feb 2021
Location: England
Default Finished first build - Shui Yuan TPA3255

Amp Board - Shui Yuan Audio TPA3255
PS - Mean Well LRS-100-24
Case - YONGU-W23B-226W1.5U


At last finished my first build and itching for my next any suggestions?
Maybe a MX50 AB and build the board.

Thank you to all that helped me on my 1st build.
Attached Images
File Type: jpg IMG-3498.jpg (411.9 KB, 138 views)
File Type: jpg IMG_3497(1).jpg (110.2 KB, 163 views)
File Type: jpg IMG_3495.jpg (109.9 KB, 178 views)
File Type: jpg IMG_3494.jpg (106.5 KB, 155 views)
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