RCF 4PRO-8001-S Crossover Processing?

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   Hi to all!

Now I'm the one who needs your help. 

I own 2 pieces of oldschool RCF 4PRO-8001-S passive 18" subwoofer.

I never found how exactly how to setup active processing (freq, shelvinf, boost, etc) for those subwoofers to obtain maximum performance from them...

I have modified it by connecting directly speaker connectors to speakon connectors (+ speaker to 1+ pole speakon and - speaker to 1- pole speakon.

That means I quitted using his internal passive crossover, and connected directly speaker to neutrik 4 pole connector.

This is the model:

https://medias.audiofanzine.com/files/4pro-8001-s-passif-manual-479561.pdf

That's what I found about freq respnse, etc:

http://www.prodance.cz/data/attachments/mereni_rcf_4pro_8001-s.pdf

Can anyone  knows about good processing equalisations for this subwoofer(s)?

Thank you, Claudiu.

Edited by DjLeco - 25 June 2018 at 12:20am

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DjLeco Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 21 April 2009 Location: Bucharest Status: Offline Points: 817	Post Options Post Reply Quote DjLeco Report Post Thanks(0) Quote Reply Topic: RCF 4PRO-8001-S Crossover Processing? Posted: 25 June 2018 at 12:10am
	Hi to all! Now I'm the one who needs your help. I own 2 pieces of oldschool RCF 4PRO-8001-S passive 18" subwoofer. I never found how exactly how to setup active processing (freq, shelvinf, boost, etc) for those subwoofers to obtain maximum performance from them... I have modified it by connecting directly speaker connectors to speakon connectors (+ speaker to 1+ pole speakon and - speaker to 1- pole speakon. That means I quitted using his internal passive crossover, and connected directly speaker to neutrik 4 pole connector. This is the model: https://medias.audiofanzine.com/files/4pro-8001-s-passif-manual-479561.pdf That's what I found about freq respnse, etc: http://www.prodance.cz/data/attachments/mereni_rcf_4pro_8001-s.pdf Can anyone knows about good processing equalisations for this subwoofer(s)? Thank you, Claudiu. Edited by DjLeco - 25 June 2018 at 12:20am
	I'm A Stupid SMART Romanian...

Conanski Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 January 2006 Location: Ottawa, Canada Status: Offline Points: 2543	Post Options Post Reply Quote Conanski Report Post Thanks(0) Quote Reply Posted: 25 June 2018 at 5:24pm
	BW24 highpss at 40hz LR24 crossover at 80-90hz to the mids or whatever is above these. Some EQ for response contouring could be used but it shouldn't need much, whatever you do don't boost 60-70hz range as this is where driver excursion is at a max anyway. Limit amp power at 1000w give or take depending on program material.

DjLeco Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 21 April 2009 Location: Bucharest Status: Offline Points: 817	Post Options Post Reply Quote DjLeco Report Post Thanks(0) Quote Reply Posted: 26 June 2018 at 6:54am
	Thank you for answer. My official settings was: BW48 highpass @38Hz BW18 crossover @100Hz One small shelving around 48Hz. If anyone knows something more processing between 42-90Hz range (shelving, boost, etc), please post. Thank you!
	I'm A Stupid SMART Romanian...