AMP FOR 2 10" KICKER CVR dual 4 ohm voice coil?
* Frequency response: 25-500 Hz * Power handling: 50-300 watts RMS * Peak power: 600 watts * 10" sub with dual 4-ohm voice coils * injection-molded polymineral cone * double-stitched, foam-ribbed Santoprene rubber surround * sensitivity: 85.5 dB * top-mount depth: 5-9/16" * sealed box volume: 0.8-3.0 cu. ft. * ported box volume: 1.25-1.75 cu. ft. Kicker 05CVR104 Kicker 05CVR10 4 10" dual 4 ohm voice coil subwoofer
1 Ohm stable amp running 4 Ohm speaker?
Alright I got a Kenwood KFC w3012 subwoofer that has a single 4-ohm voice coil. It's 400 watts RMS and 1200 watts peak. Recently, someone offered me a trade for a MTX 225HO amp. Now, I know this is a good amp and considered a "cheater amp" and somewhat of a MTX collectible. The specs are as follows: RMS Power measured at 12.5 Volts DC: 25 Watts x 2 into a 4 Ohm load with less than 0.05% Thd+N 50 Watts x 2 into a 2 Ohm load with less than 0.1% Thd+N 100 Watts x 2 into a 1 Ohm load with less than 0.3% Thd+N 200 Watts x 2 into a 1/2 Ohm load with less than 0.5% Thd+N 400 Watts bridged into a 1 Ohm load with less than 0.5% Thd+N Dynamic Power (IHF-202 Std) measured at 14.4 Volts DC 65 Watts x 2 into a 4 Ohm load 120 Watts x 2 into a 2 Ohm load 200 Watts x 2 into a 1 Ohm load 370 Watts x 2 into a 1/2 Ohm load 700 Watts bridged into a 1 Ohm load I know that I will be able to run the sub off of one channel of this amp, but I was wondering if the setup will still be safe running bridged? Would the amp be putting out a 4 ohm load bridged with a 4 ohm sub attached or will it always be putting out a 1 ohm load bridged? I know that a 1 ohm load on a 4 ohm voice coil will ruin the subwoofer.
How do I bridge a dual voice coil speaker?
The primary advantage of the dual voice coil speaker is wiring flexibility. You can use a dual voice coil 3 ways. Parallel, Series, or independent In parallel the drivers impedance will be half that of each individual coil (a dual 4 ohm speaker would be a 2 ohm speaker in parallel.) In series you will have twice the impedance of each single coil (a dual 4 ohm speaker results in 8 ohms if its coils are wired in series.) Finally, you can wire each voice coil to a separate channel of your amplifier, or to two separate amplifiers, which can be useful if your amplifier is not mono-bridgeable or if you are bridging a four channel amplifier down to two channels to run your sub.You have a very good explanation on how it works here: FAQ'sYou can calculate impedance here: Series Parallel Speaker Impedance
Can I use 1 4ohm single voice coil sub on a 2ohm 2 channel amp?
You don't have a 2ohm amp, you have an amp that is capable of being run at 2ohms, it's also capable of being run at 4ohms. That amp is bridgeable, so what you'd want to do is hook the sub up to that amp by bridging the two channels. here's how you do that: http://a248.e.akamai.net/pix.crutchfield... Note that when you bridge the amp you'll be giving the sub about 400W RMS, so you don't want to turn the gain on the amp too high and you don't want to drive the sub too hard or you run the risk of frying the voice coil.
Can I use a 4ohm DVC sub with a 4ohm minimum bridged amp?
You can wire the sub for 8 ohms and connect it to the bridged amplifier. That's really the only safe way to do it. It will work, but the output power will be reduced; double the 4-ohm 2-channel rating, and that's about what you'll get in bridged mode. Don't bother with a resistor. If you wired it in parallel with the sub, the final impedance at the amp would be around 4 ohms, true; but at least half the amp's output power would be used in heating up the resistor. You'll make the amp work harder, but no more power will reach the sub.
Would a Dual 2ohm sub bridged to 4ohm lose power?
Running your amp at 1 ohm would be way to much power for that sub. Keep reading until you see my example monoblock amp ratings below and you will see why Yes you loose power slightly but it doesnt matter and wont affect your sub. Let me explain. First lets talk about bridging. you dont bridge a mono amp. Bridging is when you combine 2 channels into 1 to double its power so if u have a amp thats 125 x 2 then essentially u would combine both to a single output of 250 watts. Now even tho your mono amp may have 2 speaker inputs it is only a one channel amp. They give u 2 terminals for easy installation so you dont have to wire the subs together at the box or speaker. Now about ohms. Monoblock amps have different power ratings at different ohms. This is because the ohms is the amount of resistance given to the amp. When u wire a sub at less ohms this decreases the resistance therefore allowing more power to flow. Think of it as turning a water faucet up all the way when your ohms are low. When ohms r higher its like having the water spicket partially open. The only drawback to running at low ohms or impedance is increased heat. More power flow means more heat. Here is a example of a monoblock amps rating 800 x 1 @ 4ohms 1000 X 1 @ 2ohms 1400 X 1 @ 1ohm When you have subs that are dual voice coil they are designed to be able to change ohm or resistance to accomodate for different power levels. So u need to match the subs rating of power to the amps output by wiring the ohm needed. So if u use the above example for a 800 watt sub then you woul need to wire the sub at 4 ohms. Sub ohm variation for dual voice coils are as follows. Single dual 2 ohm sub can be wired either at 1 ohm or 4 ohm. Single dual 4 ohm sub can b wired either 8 ohms or 2 ohms. Sorry for the long drawn out answer. Hope u got a basic understanding of ohms and amps
Wiring a car subwoofer dual 4ohm sub into a 8ohm load and then bridge on amp to get a 4ohm load.?
i don't think you have a good understanding. the speaker determined the load, the amp does not effect the load, it simply has rating for various potential loads. your sub can be configured as 2 separate 4 ohm loads. a single 8 ohm load or a single 2 ohm load. i would run your amp stereo one channel to one voice coil 2 separate 4 ohm loads. this will give your sub 400watts (200 to each voice coil) if you bridge it you will have only 200 watts to a single 8 ohm load (essentially 100 watts to each voice coil) . and 2 ohm is not a option, because as you stated your amp will not run a 2 ohm load. for your additional details the answer is NO. The amp reads a 8 ohm load as a 8 ohm load regardless if it's bridged or not. When you bridge a amp it doubles power because it combines both channels. or 200x2 becomes 400 x1 . likewise you are combining the load requirements so 2 ohm min now needs to be 4 ohm min. Bridging the amp does not change the "ohms" that you have Ohms represents the speaker resistance nothing more nothing less. the "bridging" specs on your amp is what it can do... not what it does. so it can do a 4 ohm load bridge it does not "make" a 4 ohm load bridged that stays 8 ohms, because that is the sub. The part "last time i checked........." is wrong information.... But running in stereo will get you 400 watts to that sub, thats a good soulution. no need to bridge at all.
What is the difference between a 2-ohm and 4-ohm speaker?
Indirectly explained here:What is an ohm? (unit of measurement for resistance and impedance)Loudspeakers: What are some resources to better understand impedance?Audiophiles: What is it like to overload a hi-fi amplifier with lower impedance speakers?Loudspeakers: What is lost in sound quality with a reduction in ohm?It is of concern when designing a hifi-system:If the amplifier can handle both loads, there will be no difference except 3 dB reduction in volume at a given setting for the higher impedance, easily compensated by increasing volume. When needing maximum volume, if the amplifier's maximum output voltage runs out causing signal clipping, it will happen at 3 dB lower volume on the 2x higher impedance speaker.If the amplifier is overloaded with loudspeakers of too low impedance (measured in ohms), sound quality will suffer slightly, and if the amplifier is prone to overheating, it will happen at a lower volume than when appropriately loaded.