Car Stereo is the #1 Car Audio Online Resource for radio,speakers, MP3, amps, subwoofers, box enclosures, IASCA,DB Drag Racing, USACi and MECA events Car Stereo is the #1 Car Audio Online Resource
Car Stereo is the #1 Car Audio Online Resource
Car Stereo is the #1 Car Audio Online Resource  Welcome to CarStereo.com the Internet Guide to Car Audio Car Stereo is the #1 Car Audio Online ResourceMY ACCOUNT   
Car Stereo is the #1 Car Audio Online Resource
OnlineCarStereo.com
The best and biggest selection of mobile audio/stereo, multimedia/navigation and accessories at the lowest prices! Kenwood, Pioneer, Rockford Fosgate, JVC, Sony, Clarion, Jensen, Infinity, Kicker and more...
Car Audio Black Friday Sales!
Message Forums Car Stereo Message Forums > Amplifiers > How much amplification for 4 speakers?
Go Back Pages (1): [1]
Author
Thread Post New Thread    Post A Reply
02Envoy
Member

 How much amplification for 4 speakers?

How much do any of you recommend? I am looking for a good sound quality amp. Don't get me wrong, I want it loud, but it does not have to be extreme. I am looking at usamps or zapco running diamond hex components. Also, I have read subwoofer amps as being 4 times the amplification for the main speakers, is this a good rule of thumb?

Report this post to a moderator

New Post 05-08-2005 05:19 PM
Click Here to See the Profile for 02Envoy Click here to Send 02Envoy a Private Message Find more posts by 02Envoy Add 02Envoy to your buddy list Edit/Delete Message Reply w/Quote
N2Audio
Member

 

In a newer, high quality (quiet) car I would say 50w rms is all you'd need for each of your cabin speakers to sound excellent.
4:1 sounds about right for sub power.

Report this post to a moderator

New Post 05-08-2005 05:54 PM
Click Here to See the Profile for N2Audio Click here to Send N2Audio a Private Message Find more posts by N2Audio Add N2Audio to your buddy list Edit/Delete Message Reply w/Quote
02Envoy
Member

 

Excellent, thank you! I have become very confused with the amplifier ratings from company to company. Is being 1 or 2 Ohm stable that much more important than being only 4 Ohm stable?

Report this post to a moderator

New Post 05-08-2005 06:05 PM
Click Here to See the Profile for 02Envoy Click here to Send 02Envoy a Private Message Find more posts by 02Envoy Add 02Envoy to your buddy list Edit/Delete Message Reply w/Quote
02Envoy
Member

 

Also, regarding power for a subwoofer. There are D class amps, and then say an AB 1 channel amp. Does this really matter when powering a sub?

Report this post to a moderator

New Post 05-08-2005 06:11 PM
Click Here to See the Profile for 02Envoy Click here to Send 02Envoy a Private Message Find more posts by 02Envoy Add 02Envoy to your buddy list Edit/Delete Message Reply w/Quote
N2Audio
Member

 RE:

quote:
Originally posted on 05-08-2005 by 02Envoy
Excellent, thank you! I have become very confused with the amplifier ratings from company to company. Is being 1 or 2 Ohm stable that much more important than being only 4 Ohm stable?

one or two ohm stability depends on what type of amp it is and what you want to do with it.

Most regular full range class a/b amps are 2 ohms stable in stereo, and 4 ohms stable bridged, but often, because speakers commonly have a 4 ohm nominal resistance, a/b amps are operated at 4 ohms stereo.

2 ohms or 1 ohm stability (mono) eliminates most class a/b amps, this is usually a characteristic of only mono class D amps. There are some a/b amps capable, but compared to class D they are very inefficient and seem to be becoming a thing of the past.

Report this post to a moderator

New Post 05-08-2005 10:36 PM
Click Here to See the Profile for N2Audio Click here to Send N2Audio a Private Message Find more posts by N2Audio Add N2Audio to your buddy list Edit/Delete Message Reply w/Quote
N2Audio
Member

 RE:

quote:
Originally posted on 05-08-2005 by 02Envoy
Also, regarding power for a subwoofer. There are D class amps, and then say an AB 1 channel amp. Does this really matter when powering a sub?

The advantage to using a class D amp for subwoofers is that they're more efficient, especially if you're running a lot of power.

Class D mono, class a/b mono, and class a/b bridged 2 ch will all power a sub just fine. The key is matching the impedance and power requirements of your sub(s) up to the power output of the amp at that impedance.

Report this post to a moderator

New Post 05-08-2005 10:44 PM
Click Here to See the Profile for N2Audio Click here to Send N2Audio a Private Message Find more posts by N2Audio Add N2Audio to your buddy list Edit/Delete Message Reply w/Quote
02Envoy
Member

 

With that said. I can run my sub on 2ohm and generally get more amperage to the speaker. What is the benefit of running a sub at 4 ohms then? Noise?

Report this post to a moderator

New Post 05-09-2005 08:52 AM
Click Here to See the Profile for 02Envoy Click here to Send 02Envoy a Private Message Find more posts by 02Envoy Add 02Envoy to your buddy list Edit/Delete Message Reply w/Quote
NiteScort
Member

 RE: How much amplification for 4 speakers?

quote:
Originally posted on 05-08-2005 by 02Envoy
How much do any of you recommend? I am looking for a good sound quality amp. Don't get me wrong, I want it loud, but it does not have to be extreme. I am looking at usamps or zapco running diamond hex components. Also, I have read subwoofer amps as being 4 times the amplification for the main speakers, is this a good rule of thumb?

well the hex series are rated at 150rms, 300max. id think you would want to give them 100 or more to really get the most out of them. if you only feed em 50 you might as well get a cheaper set(but still good) that are closer to 50-75rms. you use an amp that only delivers 50w to a channel and then keep the gains down so as not to over stress the amp, whats the point in having killer comps that are only seeing 30w or so? like buying a Ferrari and then never going over 30mph.

Report this post to a moderator

New Post 05-09-2005 08:55 AM
Click Here to See the Profile for NiteScort Click here to Send NiteScort a Private Message Find more posts by NiteScort Add NiteScort to your buddy list Edit/Delete Message Reply w/Quote
02Envoy
Member

 

Good point on the speakers which is why I listed them. I also remember you had these installed in your car. I was hoping to buy one of those hybrid amps that do AB for the front and D for the sub, but I cannot find one powerful enough for what I think I need. I may need to just decide on 2 different amps. My concern there is finding a place to hide them and will there be a need to upgrade my battery or alternator? Nitescort, what amp model and what power to drive your hexes? Do you wish you had bought a more powerful amp?

Report this post to a moderator

New Post 05-09-2005 09:25 AM
Click Here to See the Profile for 02Envoy Click here to Send 02Envoy a Private Message Find more posts by 02Envoy Add 02Envoy to your buddy list Edit/Delete Message Reply w/Quote
Author
Thread Post New Thread    Post A Reply
Go Back Pages (1): [1]

Show Printable Version  |   Email this Page  |   Subscribe to this Thread


   
 Recently Logged In Members  
2rgrbn, from Long Beach, CA. RampagesZ, from Mobile, AL. kaotiksyko, from , CO. Rol886, from Rockaway Beach, NY. Dayton605, from Dayton, TX. banelsonms, from Moss Point, MS. weezer4rock, from , . jaboran, from swanton, OH. N2Audio, from Lawrence, KS. wolfantry, from erie, PA. IBBumpin, from Columbus, NE. tjsaudio, from anytown, MI. punkroc719, from Winchester, VA. Andrew, from Linden, MI. #1audio, from newport, NC. torawi01, from Corpus Christi, TX. Stripedss, from Hampton, GA. NRred2, from New York, NY. becesaudio, from davao city, AL. ipodzrcool, from , AL.
see more member photos  post your members photo

 

 

 previous page Back Email this page to a Friend 
Home  |  Contact Us  |  About Us  |  Advertise  |  Join!  |  Log-In
 
Copyright © 2006 Online ConneXions Inc.
Web Designed & Hosting