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2x MT122 + CW218

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Rune RC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rune RC Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 3:03pm
I see. My initial thought was to go full passive if possible, but wasn't sure if it could be done. 
I am guessing that a SKRAM wouldn't work well with a passive crossover then?

I will figure out if I can find the specs for my driver's and ask for guidance later on then. 



Edited by Rune RC - 26 September 2022 at 3:04pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 3:45pm
Originally posted by Rune RC Rune RC wrote:

I see. My initial thought was to go full passive if possible, but wasn't sure if it could be done. 
I am guessing that a SKRAM wouldn't work well with a passive crossover then?

I will figure out if I can find the specs for my driver's and ask for guidance later on then. 



Passive in the bass-end is a real waste of power - and a filter can be more expensive than a cheapo 2-way electronic device. The coil you will need has to be large and thus expensive.

Even something like these would be better:-

https://es.wallapop.com/item/crosobers-behringer-825721418




Earplugs Are For Wimps!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rune RC Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 3:52pm
I thought so. That is also what I have read in other forums. 

So basically I will need to figure out how the crossover should be configured for the tops. 
Buy two amp's that is suitable for there different purposes
Buy a DSP or active crossover to split the sub and tops.

I guess I will need a mixer after the amps to connect the two channels?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMorison Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 4:02pm
Yes to you using 2 amps etc, but no to the mixer after the amp.
Each amp will typically be a stereo device i.e. it will already have one channel for each of the Left & Right parts of the signal, and the crossover/DSP will be too.
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Rune RC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rune RC Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 4:20pm
I see. It is just me not getting how it is connected 😅
I understand it like you do two separate line of amps. One for top and one for the sub. That might not be the case, but if it is, how are you connecting let's say a phone for playing music from?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 5:26pm
You go from: Source (phone, cd, laptop etc) --> mixer --> DSP/Crossover --> amps --> speakers.
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Rune RC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rune RC Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 6:10pm
I see. Thank you for clarifying. 
Would both amps go into the crossover or only the sub since the tops will have a passive crossover? 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 6:24pm
Both, your top has a crossover (if you but for instance a pair Sx300) between the LF driver and HF driver. You still need to split up the signal between sub and top. 
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Rune RC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rune RC Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 6:39pm
Of course. Thanks.
Is there a way to calculate what size of amps you should use or rules of thumb?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 6:47pm
That depends on your setup (drivers, cabinet etc).
Most used rule of thumb is 2x AES rating. You still need a very healthy portion of common sense when running the system.
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Rune RC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rune RC Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 7:04pm
Great thank you. 
I will probably go a bit conservative. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2022 at 10:20pm
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