the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

advantages to higher impedance


Post ReplyPost New Topic
< Prev Topic Next Topic >
davidh_r 
Copper - Posts: 59
Copper spacespace
Joined: October 03, 2004
Posted: May 05, 2008 at 7:33 PM / IP Logged  
I'm trying to determine what the advantage to running at a higher impedance is. Besides having flexibility with wiring options, here is my understanding so far:
Lower impedance: Amp works harder and generates more heat
Higher impedance: significantly less power output and slightly higher sound quality
Also, If you have two amps one at 4 ohms putting out 500 watts and another at 2 ohms putting out 500 watts, does the 4 ohm amplifier draw less power from the power source (alternator/batteries)?
davidh_r 
Copper - Posts: 59
Copper spacespace
Joined: October 03, 2004
stevdart 
Platinum - Posts: 5,816
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member consistently provides reliable informationspace
Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: May 05, 2008 at 9:36 PM / IP Logged  

davidh_r wrote:
Also, If you have two amps one at 4 ohms putting out 500 watts and another at 2 ohms putting out 500 watts, does the 4 ohm amplifier draw less power from the power source (alternator/batteries)?

No.  500 watts is 500 watts.  500 / efficiency percentage of the amplifier = power draw from source, e.g. 500 / .8 = 625 watts.  At car system voltage, the alt will generate amperage equivalent to 625 watts in order for the amplifier to produce 500 watts, given that the amp is 80% efficient.  (If voltage is measured at 13V, the alt will deliver 48 amps to give the amplifier enough juice to make 500 watts.)

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Sorry, you can NOT post a reply.
This topic is closed.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Thursday, October 31, 2024 • Copyright © 1999-2024 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer