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CVR VS ADMARK VS OTHER
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Genuine View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Genuine Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2025 at 1:46pm
Are those measurements of AD60 made on one channel or both channel driven.

They also selling all boards as separate parts and I was thinking to use 1x power supply to drive 1x AD60 channel.
It should be mono configuration for 8ohm active sub with possibility to connect another passive sub for 4ohm, or to drive dual 21” sub.

So need to drive one 21xl3000 at 8ohm or dual at 4ohm but not sure if could pull most of them with this amp or maybe it have higher power with 1x channel per power supply and could be good.



Edited by Genuine - 05 December 2025 at 1:47pm
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Elliot Thompson View Drop Down
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Points: 5365 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2025 at 12:11pm
Originally posted by Genuine Genuine wrote:

Are those measurements of AD60 made on one channel or both channel driven.

They also selling all boards as separate parts and I was thinking to use 1x power supply to drive 1x AD60 channel.
It should be mono configuration for 8ohm active sub with possibility to connect another passive sub for 4ohm, or to drive dual 21” sub.

So need to drive one 21xl3000 at 8ohm or dual at 4ohm but not sure if could pull most of them with this amp or maybe it have higher power with 1x channel per power supply and could be good.



The most important question is, Do you have the Current to feed the amplifier properly?

I don't see the reason to devise some means of a shortcut when, you can just buy the amplifier in its entirety.

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Elliot Thompson
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Points: 7752 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2025 at 3:31pm
I'd ask if the price of the separate boards works out that much cheaper than just buying the amp.

And be very carefull if you are considering placing the boards inside a cab. Vibration will destroy them unless all the components - like the caps, etc. aren't very well glued down!   Ouch
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Genuine View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Genuine Quote  Post ReplyReply Direct Link To This Post Posted: 07 December 2025 at 12:49am
Can provide up to 230v 32A per amp but not sure thats needed when each amp would have only one channel, its for active subwoofer. 
Other channel would pair with spare input board and power supply for another sub.
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Genuine View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Genuine Quote  Post ReplyReply Direct Link To This Post Posted: 07 December 2025 at 12:54am
Could buy an amp and use chasis for something else too, no difference in price.
Was going to use aluminium enclosure to get rid of moving parts like fans and make it weather proof and seal components with silicone or epoxy mass.


Edited by Genuine - 07 December 2025 at 12:55am
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Elliot Thompson View Drop Down
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Points: 5365 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 07 December 2025 at 11:40am
Originally posted by Genuine Genuine wrote:

Can provide up to 230v 32A per amp but not sure thats needed when each amp would have only one channel, its for active subwoofer. 
Other channel would pair with spare input board and power supply for another sub.

You are better off just buying an amplifier module designed to be enclosed in a loudspeaker cabinet. Offering 32 Amperes on a 230 volt line source, would be near its limits using one channel @ 4 ohms on an Admark AD 60. Realistically speaking, you do not have enough current at your disposal for this amplifier. 

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Elliot Thompson
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Genuine View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Genuine Quote  Post ReplyReply Direct Link To This Post Posted: 07 December 2025 at 6:49pm
Sure but am not aware of plate amp with such attributes, wish they make some models for active speakers.

Could provide more current but wouldnt want to pull more than 35A continiuous through those connectors that want to use.
Something seem wrong here. 
I used to push 2x active rcfTT28 into limits on 2.5mm cable and 16A circut breaker with no issues.
But this might be an issue for me and am not sure if they are much more efficient or design am looking to make output more sound pressure, I thought Ricci skrams are comparable to those.


Edited by Genuine - 07 December 2025 at 6:54pm
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sorry to suggest the obvious, but have you considered NOT putting the amp inside the subwoofer. I have never seen an active subwoofer as powerful as what you are suggesting.
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Genuine View Drop Down
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Yes, at first but would not like to go passive.
I hope they launch 4ohm version of the driver in next year, that will maybe change some things.
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Elliot Thompson View Drop Down
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Points: 5365 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 08 December 2025 at 11:45am
Originally posted by Genuine Genuine wrote:

Something seem wrong here. 
I used to push 2x active rcfTT28 into limits on 2.5mm cable and 16A circut breaker with no issues.


The RCF TT28  states a 2000 watt amplifier (1000 watt per driver). The Admark AD 60 offers 6440 watts per channel @ 4 ohms. It is quite obvious why the Admark requires more current than a pair of RCF TT28s. There are plenty of powered subwoofers available on the market if, a pair of RCF TT28s is not loud enough for your requirements. You are going to have to invest, or settle on what you can afford. 

Best Regards, 

   


Edited by Elliot Thompson - 08 December 2025 at 1:38pm
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Genuine View Drop Down
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It uses asp1000 per driver into 4ohm, would say questionable 1000w and drivers are some custom Rcf 4ohm with no info.
I understand its much more powerfull amp, but dont understand why it needs double power for similar SPL as have been told if Skram design is as efficient. So it means 2x Skrams output more SPL than 2x TT28 or they are less efficient design. Any idea how to check this?
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Elliot Thompson View Drop Down
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Points: 5365 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 08 December 2025 at 4:04pm
Originally posted by Genuine Genuine wrote:

It uses asp1000 per driver into 4ohm, would say questionable 1000w and drivers are some custom Rcf 4ohm with no info.
I understand its much more powerfull amp, but dont understand why it needs double power for similar SPL as have been told if Skram design is as efficient. So it means 2x Skrams output more SPL than 2x TT28 or they are less efficient design. Any idea how to check this?

I have no real world experience with the Skram box you are referring to. Possibly, those who actually heard the Skram box or more so, own the Skram box, can give you some answers regarding your questionnaire.


The old method to determine which cabinet design will fit the requirements based upon SPL, Tonality, Efficiency and, so forth, were to literally make comparisons among-st different designs in a venue side by side.


These days, the majority just defend the statements written from their favorite poster and, just order online. I cannot say that is the wisest method since sound is subjective. But this is how the now generation buys/builds Sub woofer Enclosures.


Best Regards,





Edited by Elliot Thompson - 08 December 2025 at 4:06pm
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