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Amp Camp Amp Kit V1.6
Amp Camp Amp Kit V1.6
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Old 2nd December 2019, 07:21 PM   #611
rob755 is offline rob755  United States
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Default ACA 1.6 stereo start up noise

Hi, I just bought an owner assembled 1.6 version stereo version with the Meanwell 24 volt power supply and it makes an odd noise on start up that I do see mentioned in briefly looking around. Can anyone please tell me if this is something I should be concerned about and do they all do it? I'm sorry I am so busy to explore fully, on my own at this time, but want to see if I should approach the seller asap as it being undesirable like this, especially should I want to re-sell in the future? Thanks SO much for any and all thoughts on the matter? Kindest Regards, Rob
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Old 2nd December 2019, 07:41 PM   #612
Mooly is offline Mooly  United Kingdom
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Amp Camp Amp Kit V1.6
Quote:
Originally Posted by rob755 View Post
Hi, I just bought an owner assembled 1.6 version stereo version with the Meanwell 24 volt power supply and it makes an odd noise on start up that I do see mentioned in briefly looking around. Can anyone please tell me if this is something I should be concerned about and do they all do it? I'm sorry I am so busy to explore fully, on my own at this time, but want to see if I should approach the seller asap as it being undesirable like this, especially should I want to re-sell in the future? Thanks SO much for any and all thoughts on the matter? Kindest Regards, Rob
Answered here
Amp Camp Amp - ACA
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Old 2nd December 2019, 07:48 PM   #613
myleftear is offline myleftear  Switzerland
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Amp Camp Amp Kit V1.6
Smile 2c

Quote:
Originally Posted by rob755 View Post
... especially should I want to re-sell in the future? Thanks SO much for any and all thoughts on the matter? Kindest Regards, Rob
Hi Rob
Your question being already answered, I may just give the unrequested advice to be a bit forgiving, and take your time to listen a little bit to this fine, sympathetic little amp. It's a joy. Well, I enjoy it very much.
david
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Old 12th December 2019, 08:59 AM   #614
eddyvb is offline eddyvb  Belgium
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I rather like the cute startup noise. It’s like it saying ‘hello again,let us listen to some music’.
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Old 12th December 2019, 01:14 PM   #615
myleftear is offline myleftear  Switzerland
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Amp Camp Amp Kit V1.6
Default little bit lost on PSU

Hello everyone!

I'm in position to start my second ACA, it's gonna be a dual parallel with varying parts (according to TungstenAudio), custom chassis and the universal PSU from diyaudio store (Universal Power Supply – diyAudio Store)...

Building the ACA isn't a problem, but concerning the PSU, I'm a bit lost, I don't see my starting point. Is there someone whose footsteps I could follow? (building this PSU for ACAmp)?

Should I begin with finding the right toroid, and work myself along the path?
Sourcing the parts isn't the issue, but I'd like to order everything in as less batches as possible, because the shipping costs are... boutique-quality.
Where can I find information about which parts to use / values to adapt?


My first ACA plays and plays and plays, it's pure bliss. (Except when the records are bad)


thank you!
david
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Old 12th December 2019, 10:14 PM   #616
Mazeppa is offline Mazeppa  United States
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Amp Camp Amp Kit V1.6
Quote:
Originally Posted by eddyvb View Post
I rather like the cute startup noise. It’s like it saying ‘hello again,let us listen to some music’.
It is a friendly sort of nonverbal welcome, indeed.
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Old 17th December 2019, 11:40 AM   #617
melbourne is offline melbourne  Australia
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Default Amp Camp Amp V1.6 - Step 42 - re Blue & White Wires

At Step 42 the blue & white wires are shown twisted together. Is this necessary because I have need to only have part of these wires twisted together (so I can vary R11 to suit an unusual pre-amp I plan to use. These are the wires that run from the white & red RCA jacks to the PCB's.

Step 30 makes it clear that the 2 red wires from the centre pin of the barrel connector to the black front panel ON-OFF switchI assume to limit noise or electrical interference, but does this also apply to the blue and white wires?

Thanks.
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Old 17th December 2019, 03:36 PM   #618
MaverickPT is offline MaverickPT  Portugal
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Not sure if this is the right thread but the original one is a bit dead, anyway...


I know it's a speaker amp, but would it work well as a headphone amp?

I'm interested on making myself a headphone class A amp based on this one.
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Old 17th December 2019, 04:34 PM   #619
Alan4411 is offline Alan4411  Wales
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Quote:
Originally Posted by melbourne View Post
At Step 42 the blue & white wires are shown twisted together. Is this necessary because I have need to only have part of these wires twisted together (so I can vary R11 to suit an unusual pre-amp I plan to use. These are the wires that run from the white & red RCA jacks to the PCB's.

Step 30 makes it clear that the 2 red wires from the centre pin of the barrel connector to the black front panel ON-OFF switchI assume to limit noise or electrical interference, but does this also apply to the blue and white wires?

Thanks.
There is no real need to twist any of the wires together. The red ones are purely for neatness and mechanical stiffness.

Just keep the blue and white input wires close to each other if you cannot twist them, but it will not make any difference.
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Old 18th December 2019, 12:23 AM   #620
melbourne is offline melbourne  Australia
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Hi Alan4411 - thanks for the advice explaining that the blue and white wired do not need to be twisted together....I can now progress to the next Step!
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