Yes you can. 2 ohms is as low as you can go with that amp MOST car subs have 4 ohm voice coils. The bigger the number, the less low bass frequency run two single voice coils subs and you'll be fine. It's a myth. There is really no 2 Ohm amplifier on the market. And there never was. The amplifier will have an output impedance of around 0.04 ohms. In hi-fi we have always impedance bridging. Zout << Zin. That means the output impedance of the amplifier is much less than the input impedance of the loud speaker. The damping factor Df = Zin / Zout tells you what Zout is. Zout = Zin/Df. If the damping factor Df = 200 and the loudspeaker impedance is Zin = 4 ohms, the output impedance of the amplifier is Zout = 4 / 200 = 0.02 ohms. You see, there is no "2 ohm amplifier" on the market with a 2 ohm output impedance. Scroll down to related links and look at "Voltage Bridging or impedance bridging - Zout < Zin".
There is no amplifier with an output impedance of 2 ohm. All amplifiers have an output impedance of less than 0.5 ohm.
Scroll down to related links and look at " Voltage Bridging or impedance bridging - Zout < Zin - Interconnection of two audio units". There ARE amps that are rated to one half ohm stable as well as 1 and two ohms stable. ALL amps have an impedance rating.
It's a myth. There is really no 4 Ohm amplifier on the market. And there never was. The amplifier will have an output impedance of around 0.04 ohms. In hi-fi we have always impedance bridging. Zout << Zin. That means the output impedance of the amplifier is much less than the input impedance of the loud speaker. The damping factor Df = Zin / Zout tells you what Zout is. Zout = Zin/Df. If the damping factor Df = 200 and the loudspeaker impedance is Zin = 4 ohms, the output impedance of the amplifier is Zout = 4 / 200 = 0.02 ohms. You see, there is no "4 ohm amplifier" on the market with a 4 ohm output impedance. Scroll down to related links and look at "Voltage Bridging or impedance bridging - Zout < Zin".
Yes, you can safely use a 2 ohm amp with one 4 ohm speaker, but you will not achieve full power.
The 2 ohm amp is designed to supply a certain voltage into a 2 ohm speaker. Supplying that same voltage to an 4 ohm speaker will result in half the power, or -3dB. For maximum power, use a 2 ohm speaker, or two 4 ohm speakers in parallel.
www.crutchfield.com or just googletype in subwoofer wiring diagram and click on crutchfield
Wire the two woofers in parallel. Two 4 ohm speakers wired in parallel equal 2 ohms. See "ohms law" for more information "on a search engine".
If its a dual coil run positive to positive and negative to negative.
connect 2 2ohm resistors in parallel and connect it to a series 2ohm resistor
Yes, you can use 2 in series, IE daisy chain them to add up to 8 ohms.For stereo you would need 4 speakers not 2. mono, 2 not one.Most Amplifiers work OK driving to a lower impedance loads anyway so just hook them up. Very high power levels may overheat the amp but at normal volume it should be fine. Something important is added: There are no 8 ohm amplifiers! The amplifier will have an output impedance of around 0.04 ohms. In hi-fi we have always impedance bridging. Zout
Answer #1Yes. 4 ohm speakers, when driven to the same voltage level (same volume control setting), try to draw four times the power (watts) of an 8 ohm speaker. This can overload the amp and cause it to fail. Answer #2It's a myth. There is really no 8 Ohm amplifier on the market. And there never was. The amplifier will have an output impedance of around 0.04 ohms. In hi-fi we have always impedance bridging. Zout
2
Speaker 2 (APEX)
You can, but its power output will be a bit higher than its 8 ohm rating.
This depends on your amplifier's specifications. i would recommend looking in the amplifier's service manual to avoid disapointment or damage to your amplifier or speakers.
If it's svc you can't. if it's dvc you can, just connect the + and the - of the voice coils, and then connect the remaining to as normal, + to +, - to -
A1: The output impedance of a power amplifier is always less than 0.1 ohms. There are no 4 ohm amplifiers on the market! A2: I actually just bought a new car radio/CD player that specifically shows 4 ohm speakers on the sticker. It is designed to work optimally with 4 ohm speakers. If you use 8 ohm instead, it will work, but you will not get the full power output that is specified. The amp can only kick out so much voltage and so much amperage - if it is designed for 4 ohm speakers, and 200 watts (stereo, so 100 watts per speaker), it can supply 20 volts (P = V^2 / R). If you used 8 ohm speakers to this amplifier, each speaker would only get 50 watts powered at full output voltage. Alternatively, if it is designed for 8 ohm speakers and 100 watts per speaker, it can provide 40 volts. If you used 4 ohm speakers instead, each speaker could be given 200 watts at 40 volts, resulting in severe overheating and damage to the amplifier.
If you connect three 4 ohm speakers in parallel, the amplifier would see a load of about 1.3 ohms. This definitely could damage the amp if you drive it too loud.
the impedance of a speaker is a characteristic that is has. A 4 ohm speaker will always have a 4 ohm impedance and it cannot be changed. If 2 speakers of 4 ohm impedance are wired in parallel, then the total impedance will be 2 ohms. Similarly, if you wire 4 speakers together, the total impedance will be 1 ohm. Wiring a 2 ohm speaker to an amplifier rated to drive a 1 ohm load should work without any problems but expect the total power output to be somewhat lower than with a 1 ohm load.
No, but it may be the other way around. Since you're using a 2 ohm speaker, don't expect the volume to be louder since the speaker uses twice as much power than a 4 ohm speaker does. If anything, I'd be cautious about the amp having the ability to handle the extra load. It's a myth. There is really no 4 Ohm amplifier on the market. And there never was. The amplifier will have an output impedance of around 0.04 ohms. In hi-fi we have always impedance bridging. Zout << Zin. That means the output impedance of the amplifier is much less than the input impedance of the loud speaker. The damping factor Df = Zin / Zout tells you what Zout is. Zout = Zin/Df. If the damping factor Df = 200 and the loudspeaker impedance is Zin = 4 ohms, the output impedance of the amplifier is Zout = 4 / 200 = 0.02 ohms. You see, there is no "4 ohm amplifier" on the market with a 4 ohm output impedance. Scroll down to related links and look at "Voltage Bridging or impedance bridging - Zout < Zin".
There is really no amplifier on the market which has an output impedance of 4 ohms. The impedance of an amplifier is always less than 0.5 ohms. We do not use matching, we use bridging when we connect the amplifier to the loudspeaker. Scroll down to related links and look at "Interconnection of two audio units".
If you connect four four-ohm speakers in parallel, the impedance will be equal to 1 ohm, and will allow the speakers to run at the advertised watt RMS. The equation is 1/(total impedance) = 1/(impedance 1) + 1/(impedance 2) and so on. Parallel is like this: Power source: + Speaker+: + + + + Speaker-: - - - - Power source: - However, usually if you hook up a 4 ohm speaker to a 1 ohm amplifier, it would still function it would simply not provide nearly as much wattage as it would have otherwise. Also, if your speakers are dual voice coil (like many subwoofers) you could use 2 4 ohm speakers, connecting the two voice coils on each speaker in parallel and then connecting the speakers themselves in parallel.
The same as you would a 2ohm speaker. It's always OK to connect an amp to a speaker with more ohms than it's rated for but not less. Depending on the type of class of the amp the power produced at the speaker will probably be lower than rated spec but that won't harm the amp or the speaker. Turning it up until your ears bleed will. Something important is added: The amplifier will have an output impedance of around 0.04 ohms. In hi-fi we have always impedance bridging. Zout
take a 2 ohm bridge into 1 ohm
Speakers need to be matched to the amplifier. This will allow maximum dynamic range of power before distortion. In extreme cases, overloading an amplifier can damage it. A 4 ohm speaker requires a certain voltage and current to achieve a certain power. A 2 ohm speaker will require less voltage or greater current (ratio the square root of 2) to achieve the same power. The decision is based on the system design, including the design of the cross-over network, if there is one.