12v Powered Systems - Car Amplifier / Speaker selection

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Car Amplifier / Speaker selection

Printed From: Speakerplans.com
Category: General
Forum Name: 12v Powered Systems
Forum Description: From Mini-rigs to ICE, all your low voltage audio needs here...
URL: https://forum.speakerplans.com/forum_posts.asp?TID=107148
Printed Date: 19 April 2024 at 3:14am
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com

Topic: Car Amplifier / Speaker selection

Posted By: electricpedals
Subject: Car Amplifier / Speaker selection
Date Posted: 14 June 2022 at 6:48pm

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

Replies:

Posted By: Conanski
Date 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.

Posted By: Lucasdude
Date 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.