Is this too much amp?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=43536
Printed Date: May 21, 2024 at 4:23 AM
Topic: Is this too much amp?
Posted By: bbusbee
Subject: Is this too much amp?
Date Posted: November 22, 2004 at 7:23 AM
If I want to power a set of Infinity components speakers, two 6 1/2" woofers with matching tweeters, that are rated at 110 watts RMS with 400 watts max capacity, how much amp power is recommended? I am considering using the Kenwood KAC-7201 and the speakers are Infinity Perfect 6.1 component system. Is this too much amp or too little and what about the quality of Kenwood amps? Thanks for your input. BBusbee
Replies:
Posted By: kklagge
Date Posted: November 22, 2004 at 7:42 AM
That amp should be okay as long as you run it slightly less than full power. The Infinity's should be able to handle a little more than 110RMS if you have them crossed over at around 100.
Posted By: Ravendarat
Date Posted: November 22, 2004 at 11:15 AM
Thats a dangerous suggestion to make, "as long as you run it slightly less than full power". How about you just run it the way its suposed to be done and match your input sensitivity to the head unit output, the way its suposed to be done. The Gain is not a volume control, if it was it would say "volume Control" not Gain.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: bbusbee
Date Posted: November 22, 2004 at 11:23 AM
Ravendarat, Can you please explain what you mean by input sensitivity?
Posted By: DYohn
Date Posted: November 22, 2004 at 11:27 AM
Start HERE to learn how to set gain. ------------- Support the12volt.com
Posted By: kklagge
Date Posted: November 22, 2004 at 11:46 AM
Raven...I guess what I wrote was taken the wrong way. I never said a word about using the gain knob as a volume control. I suppose I should have said something more along the lines of...that amp will work just fine as long as you don't turn the volume on the HU to 30 out of 30 after you match the sensitivity of the amp to the HU.
Posted By: Ravendarat
Date Posted: November 22, 2004 at 11:55 AM
See ,that sounds better, the reason why I took it that way is because what was written was "That amp should be okay as long as you run it slightly less than full power" with it implying the amp and nothing said about the head unit. No Harm no foul but when giving advise to people who are new and wouldnt know better you have to make things clear to avoid contributing to problems they might have. With that being said I have done similar things on this forum so its no big deal
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: kklagge
Date Posted: November 22, 2004 at 11:59 AM
No harm, no foul.....unlike the Pistons - Pacers game, huh? LMAO
Posted By: bbusbee
Date Posted: November 22, 2004 at 1:07 PM
You guys are awesome, I love this website! Your advice is greatly appreciated. Now after reading the article that DYohn sent to me I have to figure out what the Pre Amp output power of the Alpine-9833 should be. The specification in the owners manual says The Maximum Pre-Output Voltage is 4 V / 10 k ohms. Is this the Pre-Amp voltage signal?
Posted By: DYohn
Date Posted: November 22, 2004 at 1:46 PM
Yes, that would be the maximum output signal level. ------------- Support the12volt.com
Posted By: bbusbee
Date Posted: November 22, 2004 at 2:36 PM
After playing with the figures on the webpage you attached I have a question. If I am setting up a multiple amp system, is the goal to match the input sensitivity of each amp with the output sensitivity of the head unit? What confuses me is that if my Rockford is wired in parallel for a 2 ohm load and the Kenwood will be wired for a 4 ohm load, not to mention the amp for the subs, what exactly am I trying to match up? If the RCA input setting is 4V for all three amps but the speaker load will be different for two of them, what should the gain setting be set at? If I am to use the Data Output chart as my guide, should I be trying to get close to the maximum output of each individual amp? BBusbee
Posted By: DYohn
Date Posted: November 22, 2004 at 4:30 PM
Ideally, you match the input sensitivity of each amp to the maximum output of the head unit (or whatever is driving the amp.) After matching maximum to maximum, you may REDUCE the sensivitiy (never increase it) on certain amps to balance the sound. The adjustment on each amp is set for the impedence load you have on that amp. A multimeter and test CD is requyired for proper setup. ------------- Support the12volt.com
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