Car Amplifier / Speaker selection

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   Hi
Is there a rule of thumb for pairing up passive speakers with car amplifiers?

For example, could I pair up:

2x JBL JRX225 Dual 15'' Passive PA Speaker
Pioneer 4 Gm-D8704 1200 Watts Class FD Amplifier 

I'm researching build a decent sized 12v system.

Thanks
Colin

Edited by electricpedals - 14 June 2022 at 6:49pm

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electricpedals Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Joined: 23 June 2015 Status: Offline Points: 5	Post Options Post Reply Quote electricpedals Report Post Thanks(0) Quote Reply Topic: Car Amplifier / Speaker selection Posted: 14 June 2022 at 6:48pm
	Hi Is there a rule of thumb for pairing up passive speakers with car amplifiers? For example, could I pair up: 2x JBL JRX225 Dual 15'' Passive PA Speaker Pioneer 4 Gm-D8704 1200 Watts Class FD Amplifier I'm researching build a decent sized 12v system. Thanks Colin Edited by electricpedals - 14 June 2022 at 6:49pm

Conanski Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 January 2006 Location: Canada Status: Offline Points: 2232	Post Options Post Reply Quote Conanski Report Post Thanks(0) Quote Reply Posted: 15 June 2022 at 3:00am
	It doesn't matter what type the amplifier is, a general rule of thumb is 1.5x the continuous rating but any amp capable of 500w-1000w into 4ohm will do a good job.

Lucasdude Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 16 March 2013 Location: London Status: Offline Points: 471	Post Options Post Reply Quote Lucasdude Report Post Thanks(0) Quote Reply Posted: 15 June 2022 at 12:33pm
	I'm a fan of the old Genesis class G amps. The Profile Sub mono amps are really good for driving full range speakers. They have an adjustable HPF from around 18hz up, and each can deliver a respectable 350w @14.4v 4ohm or 550w @2ohm. I'm currently using a pair to drive some EV ZX1s, they give around 200w@8ohms.