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CVR and Admark Amps
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tehuti View Drop Down
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Joined: 24 March 2010
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Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tehuti Quote  Post ReplyReply Direct Link To This Post Topic: CVR and Admark Amps
    Posted: 13 August 2023 at 5:01am
Originally posted by U.Viktor U.Viktor wrote:

There is even a GaN-transistor based version with 520VDC rails (2* 260V or so)
However the sound quality is exceptionally poor..
There is 'ALLDSP' inside which is also ruins sound quality.
It it not reach any of the professional grade performance.
We were unable to determine what makes the sound quality so bad but If you take an oscilloscope the waveforms on the output are very ugly.
I have pictures somewhere, let me find them and show..
Horrible in every audio meanings :-)

I am talking about this comment about the ad442 specifically .  
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Requiem View Drop Down
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Points: 1795 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Requiem Quote  Post ReplyReply Direct Link To This Post Posted: 07 August 2023 at 1:11pm
What do you mean by not the best sound?

When we compared them to MC2 E-series, Powersoft K series, Linea Research and FFA the difference was negligable.

The only one that smashed all of the others out of the park was the MC2 Delta series and that seemed to be way better than all of the other amps we tested, with the same signal on the same box in the same position with the same gain.
www.requiem-soundsystem.com


Custom Martin Audio WSX, USB & CSG Soundsystem based in Bristol
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tehuti View Drop Down
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Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tehuti Quote  Post ReplyReply Direct Link To This Post Posted: 06 August 2023 at 10:17am
Can you find this info?  I bought 2x ad442 for backup amps etc and they worked so far on low mids and bass but not the best sound.  Worried to use them or sell them somehow or keep for emergencies.   Do the other admark amps work fine without any anomolies? 
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levyte357- View Drop Down
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Points: 8079 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 20 July 2023 at 3:12pm
Originally posted by lickweed lickweed wrote:

yes , ad442 , didn't have a chance to use it in anger yet.


Did you buy it for sub, or mid tops.
Global Depopulation - Alive and Killing.
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MarjanM View Drop Down
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Points: 7735 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 20 July 2023 at 10:17am
Please report you finding. 442 looks too good to be true.
Marjan Milosevic
MM-Acoustics
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lickweed View Drop Down
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Points: 2481 		Post Options Post Options   Thanks (0) Thanks(0)   Quote lickweed Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2023 at 1:30pm
yes , ad442 , didn't have a chance to use it in anger yet.
http://www.liquidsound.co.uk/
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lickweed View Drop Down
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Points: 2481 		Post Options Post Options   Thanks (0) Thanks(0)   Quote lickweed Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2023 at 1:28pm
Viktor , we know only good amp is a PKN , but its getting a bit boring.
Admarks sounds rather good to my ears
http://www.liquidsound.co.uk/
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tehuti View Drop Down
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Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tehuti Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2023 at 4:12pm
Do you mean the Admark ad442? I was curious about this model if you have comparisons between that and the other models I’m very curious . 
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U.Viktor View Drop Down
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Points: 716 		Post Options Post Options   Thanks (0) Thanks(0)   Quote U.Viktor Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2023 at 3:48pm
There is even a GaN-transistor based version with 520VDC rails (2* 260V or so)
However the sound quality is exceptionally poor..
There is 'ALLDSP' inside which is also ruins sound quality.
It it not reach any of the professional grade performance.
We were unable to determine what makes the sound quality so bad but If you take an oscilloscope the waveforms on the output are very ugly.
I have pictures somewhere, let me find them and show..
Horrible in every audio meanings :-)
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lickweed View Drop Down
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Points: 2481 		Post Options Post Options   Thanks (0) Thanks(0)   Quote lickweed Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2023 at 2:55pm
I asked quite a lot of questions about amps , before i pulled a triger( bought some)Thanks Stef.
Its by no means Armonia , Lake or any other pro environment , but its ok , there is even some FIR . 
They can and do higher end of spectrum , but i don't think they sell a lot  , its well established market .
http://www.liquidsound.co.uk/
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smitske96 View Drop Down
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Points: 1035 		Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2023 at 10:35am
@Marjan

its indeed AllDSP (SBD44). It works ok. Fast but very simple UI, and for me personally not enough capabilities processing wise. The LCD of the amp is also quite limited

I now run some CVR 3004 DSP which are basically the same amp as the AD430 with a different DSP and some other small tweaks. Its the same DSP as used in the wharfdale DP-F series. I am not sure which manufacturer makes the DSP, but its looks nice and works nice.
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MarjanM View Drop Down
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Points: 7735 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 17 July 2023 at 6:04pm
Originally posted by smitske96 smitske96 wrote:

Its the same test standard as powersoft k series. I have used the ad430 dsp version, and would place the next to a k series amp sound wise. Not sure how it holds up against t or x series. But wat do you want for that price Wink

How do you like the DSP? Is it AllDSP inside? 
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713
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