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Questions about amp camp amp and linear power supply
Questions about amp camp amp and linear power supply
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Old 30th November 2017, 11:57 AM   #11
Jonse is offline Jonse  Norway
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Originally Posted by vdi_nenna View Post
The aca 1.1 is just a slightly upgraded aca. R15 was added and R12 was changed. That info is in the thread.

You could wait for aca 2.0. That's a bit more differrnt, with more power capability, I believe.
And one SMPS of 24vdc/5A shared by the two channels right?

Haven't heard about the aca 2.0. Is it coming soon?
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Old 30th November 2017, 12:03 PM   #12
vdi_nenna is offline vdi_nenna  United States
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I know this much, it will be a kit because they are working on a case for a stereo amp instead of a monoblocks. Supposed to keep cost down. It has an XLR input, plus you can bridge it for more power. I don't know the time frame. Sorry.
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Old 30th November 2017, 12:09 PM   #13
Ralph G is offline Ralph G  Netherlands
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Questions about amp camp amp and linear power supply
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And one SMPS of 24vdc/5A shared by the two channels right?
A well known German electronics surplus company starting with a P has Megmeet 24V/5a SMPS for 6.95 each.
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Old 30th November 2017, 01:27 PM   #14
vdi_nenna is offline vdi_nenna  United States
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I just paid $18 US each for 6.5A Mean Well smps.
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Old 30th November 2017, 04:29 PM   #15
Nelson Pass is offline Nelson Pass  United States
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Questions about amp camp amp and linear power supply
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Originally Posted by Jonse View Post
Haven't heard about the aca 2.0. Is it coming soon?
I believe management wants to call it something else.

First round prototype is done, chassis and power supply selected.

Stuff delayed a bit by BAF and launch of ACA 1.1
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Old 30th November 2017, 05:26 PM   #16
Jonse is offline Jonse  Norway
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Originally Posted by Nelson Pass View Post
I believe management wants to call it something else.

First round prototype is done, chassis and power supply selected.

Stuff delayed a bit by BAF and launch of ACA 1.1
So there will be two ACA kits released? ACA 1.1 and ACA something else? Exciting! Is it possible to get some more info on the latter one?
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Old 30th November 2017, 05:46 PM   #17
Bare is offline Bare  Canada
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Originally Posted by vdi_nenna View Post
I just paid $18 US each for 6.5A Mean Well smps.
At least Meanwell is a known Chinese brand.
I semi recently bought 2... 25 Volters for significantly Mo' $ than that... Both subsequently / soon failed, one damaging an amp in process .
Apparently SMPS failures are more common than generally acknowledged.
Dunno .. but certainly 2 was enough for me
Only SMPs that seem trustworthy.. in My mind... are the laptop bricks.
Until well proven otherwise.. I'm only willing to trust to a Transformer.
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Old 30th November 2017, 07:35 PM   #18
vdi_nenna is offline vdi_nenna  United States
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Quote:
Only SMPs that seem trustworthy.. in My mind... are the laptop bricks.
They Meant Well...

I have access to a lot of unused bricks, especially 19.5v 5A and up. 24v are a little rare at work. Don't know why I pulled the trigger on the Mean Wells, might have to do with keeping everything inside the case. Don't know if there will be much radiation from the supplies. Hope not.
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Old 5th February 2018, 12:31 AM   #19
kking85743 is offline kking85743
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Ok, a question for the experts (or at least those with more experience than I):

I've got an ACA (from BA17) running on a 24v 8A switching power supply. I can't hear any hum or ripple, and all the scope shows is a neat little triangle wave at 50kHz (with the expected MHz ring), and a listed 82mV P-P max measurement and an averaged 13mV RMS. Is that quiet enough, or should I be unsatisfied with any visible/measurable ripple?

Or is that a little over the top?
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Old 5th February 2018, 12:42 AM   #20
2 picoDumbs is offline 2 picoDumbs  Australia
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Measured at the output of the supply or at the speaker terminals?
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