difference between 1 and 2 - diyAudio
Go Back   Home > Forums > General Interest > Car Audio

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 11th November 2005, 12:05 AM   #1
diyAudio Member
 
Join Date: Nov 2005
Send a message via AIM to androtaker56 Send a message via Yahoo to androtaker56
Default difference between 1 and 2

does the amp see any difference between 1 sub @ 4ohms and 2 subs @4 ohms. does this setup put anymore strain on the amp then one sub.
  Reply With Quote
Old 11th November 2005, 03:12 AM   #2
Stocker is offline Stocker  United States
diyAudio Member
 
Join Date: Dec 2003
Location: Austin
That depends.
__________________
Jesus loves you.
  Reply With Quote
Old 11th November 2005, 05:25 AM   #3
diyAudio Member
 
xplod1236's Avatar
 
Join Date: Dec 2003
Location: On the couch
Send a message via AIM to xplod1236
Default Re: difference between 1 and 2

Quote:
2 subs @4 ohms
Is that both subs wired up to give 4 ohms or each sub at 4 ohms?
  Reply With Quote
Old 11th November 2005, 02:20 PM   #4
diyAudio Member
 
Join Date: Nov 2005
Send a message via AIM to androtaker56 Send a message via Yahoo to androtaker56
either one sub wired for 4 ohms or two subs wired for a 4 ohm load. not each at 4 ohms
  Reply With Quote
Old 11th November 2005, 03:26 PM   #5
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
Quote:
Originally posted by Stocker
That depends.
Boy, isn't that helpful.

Andro,
If the load is constant, there shouldn't be any difference in what the amp sees regardless of the number of drivers. You are asking about simple impedance right?
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 11th November 2005, 10:24 PM   #6
Stocker is offline Stocker  United States
diyAudio Member
 
Join Date: Dec 2003
Location: Austin
My answer was as informative with regards to the solution as the original post was concerning the intent of the question. I was *trying* to make a point about the quality of the original question.

As far as the question posed and the answer posted so far, Cal, I agree with you.

-David
__________________
Jesus loves you.
  Reply With Quote
Old 12th November 2005, 05:59 PM   #7
diyAudio Member
 
Join Date: Nov 2005
Send a message via AIM to androtaker56 Send a message via Yahoo to androtaker56
its really a simple question, I was just wondering if its any harder on a amp to push 2 10s at 4 ohm to the amp, then 1 10 4 ohm to the amp. I have been seeing an issue that I do not understand. I have a amp that pushes one ten at 4 ohms with no problem but has problems when trying to push 2 10s together at a 4 ohm load. both tens are exactly the same. it has been my understanding that no matter how many drivers there are its no harder on the amp as long as the overall impedence is the same. so why would a amp go into protection mode at high volumes, with two drivers at the same impedence as 1 driver but it has no problems pushing the single driver.
  Reply With Quote
Old 12th November 2005, 07:58 PM   #8
Stocker is offline Stocker  United States
diyAudio Member
 
Join Date: Dec 2003
Location: Austin
ah... are the 1x10 and 2x10 the same driver? If so, then the 2 10s in parallel will be a 2 ohm load and a whole heckuva lot harder to drive than just one by itself. Two 4 ohm drivers in series would be 8 ohms and an easy load indeed for most car amplifiers.

For clarification: these drivers, are they all 4 ohm you are talking about? and do you understand the difference between series and parallel wiring? Please understand I am not trying to be patronizing, I am trying to clarify that we are all on the same page.
__________________
Jesus loves you.
  Reply With Quote
Old 12th November 2005, 08:40 PM   #9
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
Quote:
Originally posted by androtaker56
its really a simple question
not the way you are asking it.

I'm with David on this one. Something in your last post is very confusing. The only way to get the same impedance load with the same speakers is if you use one or four drivers. There's no way of getting the same load with two. (you smart alecks leave that alone)

There are some drivers out there available in a range of impedances but you said these are the same. Please clarify this for us.
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 14th November 2005, 12:36 PM   #10
glb72 is offline glb72  United States
diyAudio Member
 
Join Date: Nov 2005
Here is my untechnical answer. If the load or inpedance is the same. No it is not harder on the amp at the same wattage output. When you run 1 sub on an amp you are more likely to lay off the volume as it starts to distort, for instance say the sub starts to distort at 60watts then you add two subs that sound good untill 60watts each now you are feeding 2 woofers 60watts for a total of 120watts. Now the amp is working harderthan it was with one sub.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
What's the difference? squirtacious Tubes / Valves 4 23rd October 2007 04:38 AM
How much difference 0.22 vs 0.33 cap? pengboon Tubes / Valves 1 1st July 2007 10:07 AM
Difference between CDM 4/19 and CDM 4/19/31 bezobraznia Digital Source 1 28th October 2005 10:08 AM
What's the difference? 2.83V/1m - 1W/1m 1Time Everything Else 5 10th February 2003 03:54 AM


New To Site? Need Help?

All times are GMT. The time now is 04:11 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2