6G Celicas Forums

Welcome Guest ( Log In | Register )

> sub amp wiring ops. ohm and watt, how does ohms relate with watts? expert needed
post Dec 26, 2005 - 12:53 PM
+Quote Post
urbandork



Enthusiast
*****
Joined Jul 16, '04
From Los Angeles
Currently Offline

Reputation: 8 (100%)




Assuming im using dvc subs that have an rms of 250w

user posted image
what 4ohm load amp would i be looking at wattage wise???? would it be 250 watts RMS x 1 bridged output at 4 ohms. or would it be 500w?

user posted image
what kind of mono and or 1ohm amp would i be looking at would i need it to be 250 at 1ohm or 500???

I get the sub and stuff but how does wiring of the subs in parallel and series as well as ohm at amp to ohms at subs affect the wattage being put out by the amp.

Last but not least which of these two wiring options should i go with????

This post has been edited by urbandork: Dec 26, 2005 - 3:47 PM
 
Start new topic
Replies
post Dec 29, 2005 - 9:04 PM
+Quote Post
Consynx



Enthusiast
*****
Joined Dec 25, '02
From Pittsburgh/Clairton, PA
Currently Offline

Reputation: 1 (100%)




since the obvious was never stated
Ohm should be a measurement of resistance, the more resistance in a speaker the better the quality(or so i believe, not 100% on how speakers work)
Watt is just a Joule/second (energy per second) the greated the energy it can handle, the greater the outputs it can have.


--------------------
post Dec 31, 2005 - 6:06 PM
+Quote Post
mikew04



Enthusiast
***
Joined Feb 19, '04
From austin tx
Currently Offline

Reputation: 1 (100%)




QUOTE(Consynx @ Dec 29, 2005 - 9:04 PM) [snapback]372720[/snapback]

since the obvious was never stated
Ohm should be a measurement of resistance, the more resistance in a speaker the better the quality(or so i believe, not 100% on how speakers work)


The ohms in relation to a speaker is actually called impedance, and that is used amplifier selection purposes. You dont want to run a 4ohm car speaker on an amp in your house that is only stable to 8ohms - you could fry the amp. The resistance in the coil on a speaker will change greatly depending on the frequency being played. Like up to hundreds of ohms of resistance or more IIRC. And speaker quality has nothing to do with speaker impedance. You may have it confused with ohm load on amps, as they tend provide cleaner power at a higher impedance at the sacrifice of power.

The only 'good and bad' with dual and single voice coil subs is wiring options. You decide which you want based on the amp you are getting, how many speakers you are running, and what kind of load you want on the amp. One is not better than the other providing you have all the voice coils hooked up.

We can't decide on an amp for you to get, there are too many options out there. Just an FYI, I have not heard about Infinity amps being anything special, you might want to look around so you can save some money. In other words, you can find a better amp for the money. If you are set on getting (2, two) 4ohm DVC's (the infinitys will be model number 1042w or 1242w, not 1040 or 1240) then find an amp that puts out 500w rms at 4ohms (either 500x1 or 250x2,) or find an amp that puts out 500w rms at 1ohm. Just know that you can spend less on the amp if you get 4ohm SVC's because you can run 2 at 2ohms.

And it's long, but everyone should read this.


--------------------
user posted image

Posts in this topic
- urbandork   sub amp wiring ops. ohm and watt   Dec 26, 2005 - 12:53 PM
- - mikew04   Are the subs 4ohm DVC? I'm assuming so because...   Dec 26, 2005 - 6:09 PM
- - urbandork   nope havnt bought n e thing yet but i plan on ru...   Dec 26, 2005 - 10:48 PM
- - ShadowFX   you cant use the first amp, that will only be stab...   Dec 27, 2005 - 7:30 AM
- - urbandork   why cant i use the first one. The first amp puts...   Dec 28, 2005 - 1:23 PM
- - RocketScott   It's not that the amp "puts out" 4oh...   Dec 28, 2005 - 8:24 PM
- - ShadowFX   saying it again, these subs are SVC. they are 4ohm...   Dec 28, 2005 - 10:13 PM
|- - RocketScott   QUOTE(ShadowFX @ Dec 28, 2005 - 7:13...   Dec 29, 2005 - 3:01 AM
- - ShadowFX   i was just saying, since he is always saying theyr...   Dec 29, 2005 - 3:32 AM
|- - RocketScott   QUOTE(ShadowFX @ Dec 29, 2005 - 12:3...   Dec 29, 2005 - 12:12 PM
- - ShadowFX   Haha sorry, yeah, I wasnt thinking about running o...   Dec 29, 2005 - 8:15 PM
- - Consynx   since the obvious was never stated Ohm should be a...   Dec 29, 2005 - 9:04 PM
|- - mikew04   QUOTE(Consynx @ Dec 29, 2005 - 9:04 ...   Dec 31, 2005 - 6:06 PM
- - urbandork   ok so if i want to use the infinity reffrence subs...   Dec 29, 2005 - 9:45 PM
|- - RocketScott   QUOTE(urbandork @ Dec 29, 2005 - 6:4...   Dec 30, 2005 - 1:41 AM
- - Consynx   i believe you can take ONE DVC 4 ohm and wire it t...   Dec 29, 2005 - 10:01 PM
- - Hanyo   so much info in this thread, i love it! just ...   Jan 2, 2006 - 5:51 AM
- - ShadowFX   If you use a higher impedance speaker with an amp,...   Jan 2, 2006 - 11:33 AM


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



Lo-Fi Version Time is now: August 3rd, 2025 - 5:30 PM