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Will it do any damage to replace 6 ohm speakers to a sterio with 8ohms?
Wiki User
∙ 13y ago
There are no 4 ohm amplifiers! The amplifier will have an output impedance of around 0.04 ohms. In hi-fi we have always impedance bridging. Zout << Zin. That means that the output impedance of the amplifier is much less than the 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" with a 4 ohm output. Scroll down to related links and look at "Voltage Bridging - Zout < Zin".
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThere is really no 6 ohm stereo amplifier on the market, because the outpt impedance of the amplifier is always less than 0.1 ohm.
Scroll down to related links and read the short article "Amplifier, loudspeaker, and Ohm".
A: .1 OHMS so if i have 10 volts out i get 100 amps RIDICULOUS . the impedance output s matched to the speakers impedance for one reason and one reason only EFFICIENCY. YOU may put any speaker system higher the specified but don't expect the same output efficiency
Wiki User
∙ 12y agoA: ABSOLUTELY the thing is that the power available will not be as possible as the 8 ohms percentage Wise since the output was matched to the 8 ohms
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Yes you can, but there's a risk of overloading the amplifier if you use it at high volumes.
If you are careful not to advance the volume control too high, then it would be ok - but you have no way of telling if it is too high, do you?
Matching doesn't enter into it. A modern amplifier is a voltage source and therefore has a source impedance tending to zero. The load impedance is stated solely an the amplifier's ability to deliver current.
Wiki User
∙ 10y agoYou need to look at this from the other way:
The stereo should be rated for a sertain resistance speaker.
Using a higher ohm speaker will not hurt the stereo but using a lower ohmm one will.
But matching the correct rating will ensure volume and durabilty
Wiki User
∙ 13y agono the smaller the ohmn the more power it can handle so 6ohmn more then 8 ohmn
Wiki User
∙ 15y agoThat is no problem.
Wiki User
∙ 15y agoYes. The quality of sound will be slight.
Anonymous
No, you'll damage your receiver!
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How do you wire 4 8ohms speakers in a guitar cab to have an 8 ohm load could you provide a wiring schematic?
To wire four 8 ohm speakers to provide an 8 ohm load, wire them in series / parallel. Two speakers are in series. The other two are in series. The two series pairs are in parallel with each other. All four speakers should be identical. Since you want all voice coils moving in the same direction at the same time, you need to pay attention to polarity. The speakers should have a red dot on one terminal. The two speakers in each series pair are wired red to non-red. The two pairs are wired red to red and non-red to non-red. Specifically, if the speakers are labeled A, B, C, and D, and the polarity is + for red and - for non-red, the connections are as follows... A- to B+, C- to D+, A+ to C+, and B- to D-. The power input goes between A+/C+ and B-/D-. The equivalent impedance is 8 ohms, and the effective power rating will be four times. The frequency response won't be exactly the same but, depending on the cabinet design, it should not matter too much.
Will a 1000 watt RMS amp blow two 350 watt RMS subwoofers if the power on the amp is turned down?
Yes! Turning down the amp will lower the gain, but will not output less watts. Plus you must understand the ohms. If your amp does 1000w at 16ohms, then it'll do close to 500w at 8ohms. OR, 500w at 8ohms will be about 250w at 4ohms and so fourth. It will depend on the impedance (ohms) of the speaker and IF the amp can handle different loads (ohms).Also, if your speakers are, say, 8 ohms and you bridge them to one amp in mono, the ohms drops to 4.The best bet would be to match the ohms, and over power the speakers by 100 watts but no more then 200 watts RMS. Example: woofer that does 350w RMS (1000w Peak) at 4ohms, add amp that does 400w to 500w at 4ohms. And remember, if you add a woofer on the same channel (mono), the impedance drops to 2ohms. This makes your amp stronger, and will now push more watts to your speakers. Make sure they can take it. have fun.................Edit: If your car can do 200, your not going that all the time. I used a 200Rms amp to drive a 8w speaker for 3 months while waiting for repairs and they are still going strong. listen to your speakers and play a bass heavy song, listen for a Rubbing sound or a "clank/clunk" sound, that is the pole piece hitting the back of the speaker, this is worse than distortion as is is causing physical damage to the cone and VC (voice coil), Distortion is when the sound being played is not the same tonal response IE. if you have a full range speaker, one capable of playing low, mid and highs will have distortion in the high when it also has to play low.In the end, turn your gains as such: if your combo is 1000w amp and 250w sub it is 1/4 power so you wouldn't want to turn them over a quarter their range and listen to to the speaker if it sounds stressed out, back off, and get a crossover, parts express has them.
Is it better to have dual 2 ohm or dual 4 ohm sub woofers?
u have to hook up both coils on the subs or u will damage it u can run both coils in series that's pos to pos and neg to neg witch will make the sub 2ohm or u can do it by running it in parallel one neg to the other coils pos then using the one neg and one pos u got left now u have 8ohms it really comes down o what amp your hooking up and what ohms u get the most out of your amp
How would you connect 1- 4 ohm 40 watt speaker and 1- 6 ohm 35 watt speaker to left output of an AV receiver with 8 ohm and 110 watt output. Same combo for right output?
The 2- 4 ohm speakers can be hooked up in series to make 8 ohms. you cant hook up the 2- 6 ohm, cause if you put them in series, you have 12 ohms. If you put them in , parallel you have 3 ohms out from av to +(4ohms), -(4ohms) to +(4ohms), -(4ohms) to - av. And do the math 4ohms plus 4ohms equals 8ohms. doing the math on the 2- 6ohm speakers... 6ohms + 6 ohms = 12ohms I dont think 12ohms would blow your system, but it wont sound right. now if you raise the volume too loud on the av you will blow the speaker coils out you may boost the wattage of the 2-4ohm speakers (in series) to maybe 70 watts total ******************************************* If you connect loudspeakers in series, the amplifier can not properly damp them, but, unless you are a fairly critical listener, you perhaps won't detect the difference. Connecting two 6 ohm 'speakers in series will give a load of 12 ohms, and will not "blow" anything. Connecting a load impedance higher than the amplifier's design load will do no harm at all. The only disadvantage is that the amplifier will not be able to develop its rated power output.
How can you hook up a amp to a receiver?
With all the activity lately on the Shack from new members who are having difficulties hooking up the receivers properly I thought it would be a good idea to have a dedicated post on how to hook your speakers and other equipment up to get the best results.As with all home theater setups there is a plethora of wires and connections that if not connected properly you wont be able to get the full potential out of your gear.Receivers seem to always be the biggest part of the confusion and alot of questions seem to come up about "how to get something working" or "why dont I hear this properly" so Below is a step by step guide as to how to go about this:Although there are many manufacturers of receivers, DVD players and other components they all have alot of similarities with regards to connections on the back.We will start with the what I call the heart of the system the Receiver.The first thing you need to decide is what speaker connections you need to use and this seems to cause alot of confusion. Do you have a two speaker setup or a full 7.1 setup meaning 7 speakers and one subwoofer.?This image has been resized. Click this bar to view the full image. The original image is sized 1219x562.1) Above I have highlighted the speaker terminals that are most commonly used,In light Blue I have marked the Front or main speaker connections. These are to be connected to your front Left and Right speakers the red terminal is the positive and the black is the negative (do not reverse these or you can cause problems but it wont damage anything).Now you need to know what Ohms your speaker is (this is important) look at the back of the speakers where you connect the wires and there should be a label saying what wattage and Ohms they are the Ohms symbol looks like an upside down horseshoe and will usually be 8 or 4 ohms. write this down for use later.Now here is where the confusion starts so just follow these instructions and you will be fine:2) With most home theater receivers that are newer they have either either 5.1 or 7.1 channels and you need to know what you intend to use, in small theater rooms (less than 180sq ft) a 5.1 speaker system will do just fine. If you have a larger space then it may be necessary to use all 7 speakers This also depends on if you have one or two rows of seating.Here is a link to a diagram of what a 5.1 speaker layout should look like. You can also place the side speakers on the back wall as well but keep the at least 4ft apart.Here is what a 7.1 speaker layout should look like. Again the back speakers should be spread apart at least 4ft not what the diagram shows (I will explain later why).Ok, now that we have decided what we have for a speaker layout if you receiver is 7.1 channel and your going to use all 7 speakers skip to point number 4, if you want to only use a 5.1 speaker setup continue on to next point.3) On receivers with 7 speaker connections you will not be using the 6th and 7th speaker terminals usually labeled "Rear speakers" or "Surround back" seen in light green in the picture. On a 5.1 channel only receiver you will use them.The confusion always seems to be because most people have there speakers placed on the rear wall and the label on the receiver is not worded this way.The surround channels need to be hooked up to the terminals labeled Surround side seen in Yellow. If you leave these blank and hook the speakers up to the rear surround terminals the receiver will not (in most cases) send any sound to them when listening to movies. Continu to hook up the centre channel speaker as well labeled red and finaly connect the subwoofer to the line output labled sub out shown in dark green.4) For a full 7.1 surround experience you hook up all the speakers to the appropriate terminals shown in these colors:Front speakersCenter channelSurround sideSurround backSubwoofer (connect to line out rca jack)5) Ok, now you have the speakers hoked up. Now what. Well if your receiver has on screen menu capabilities the next step is to hook up the display.You will need to know what your display has for a connection but for most people it will ba a flat screen with a HDMI (High Definition Media Interface) input.If you have an older display it may only have component (Red Green and Blue connectors) or even a S-Video or composite input (Yellow).Lets assume you have HDMI run a HDMI cable between the receivers HDMI out seen in Dark blue on the far left of the picture above and your displays HDMI input.Select that input on the display and turn on the receiver (you will need to check the receivers manual for more detailed instructions)Go into the receivers setup menu (at first you will have to use the display on the receiver) and select HDMI out "On" so that it will output your receivers menu through HDMI.Now this is where you need to remember the Ohms rating on your front speakers that I had you write down earlier. Go into the Speaker settings section of the receiver and find the setting that adjusts the Ohms to match what you have. Select the closest one available in the menu sometimes it only gives you two choices 6 or 8ohms (for 4ohm speakers select the 6ohm setting if there is no 4 listed).Note: this setting may also just be a switch on the back of the receiver.Most newer receivers have many different surround modes (to many to list) and we will leave this for another post. what you need to understand is that some modes are more useful than others and may or may not work well for music and movies. just because you have 5 or 7 speakers set up does not mean that music will sound right if using a mode that sends it to all the speakers. It takes time to find what you will like and dont get frustrated if you dont like what you hear right away.earlier I stated that the rear speakers should not be placed together like in the diagram THX recommends This is because the rear channels are in stereo and work better spread apart particularly now with the newest movies using them much more than ever before.Read more: How to hook up your receiver properly - Home Theater Forum - Home Theater Systems - HomeTheaterShack.com http://www.hometheatershack.com/forums/system-setup-connection/16175-how-hook-up-your-receiver-properly.html#ixzz0gas1gEsD
Can you run a single 2ohm dual voice coil sub and a single 4ohm DVC sub off a single mono amp?
It depends on the amplifier. If you absolutely want to leave the current subwoofer configuration as 2ohm and 4ohm, the resultant impedance seen by the amplifier is as follows: Both wired In-Series: 2ohm + 4ohm = 6 ohms Both wired In-Parallel: 1 / ( (1/2) + (1/4) ) = 1.3 ohms The Parallel configuration can probably be only run by a 1ohm-stable amplifier whereas the 6ohm Series configuration can be run by any amplifier that is able to drive anything under 6 ohms. Also if ran in the Parallel configuration, this mismatch in driver impedance may also cause the 2ohm subwoofer to receive more power, resulting in a different sound characteristics than the 4ohm subwoofer. Usually with DVC subwoofers you want to match the impedance between drivers. If possible, configure each subwoofer to 4ohms and connect them in Parallel. This will produce a total impedance of 2 ohms (you need a 2ohm-stable amplifier). If your DVC subwoofers only support 2ohms and 8ohms do either: Both wired In-Series - configure subwoofers to 2ohms: 2ohms + 2ohms = 4ohms Both wired In-Parallel - configure subwoofers to 8ohms: 1 / ( (1/8) + (1+8) ) = 4ohms.
What is the Best amp for pioneer premier subs 3000 watts 1000 watt rms?
an amp tht has 1000 watt rms dont look at max power it doesnt exist look at rms the higher the rms the better sound youll get Also, if your sub is a dual 4ohm then you will have to look for an amp which puts out 1000rms at 2ohms or 8ohms. if your sub is dual 2ohms then you will have to look for an amp that puts out 1000rms at either 1ohm or 4ohms Pioneer premier subs dont have much sound quality, they just sound like noise. You would be better off buying a vibe space 12" enclosed woofer rated at 1000rms 3000peak, this sub pounds real hard and the custom enclosure it comes in is amazing. The amp i would recommend is an alpine MRP-M1000.
What is voltage of a circuit with 15 amps of current andtoaster with 8ohms of resistance?
V=I*R Where: V is voltage I is the current in ampers R is resistance in ohms. So, if the current is 15 A and the resistance is 5 ohms, then the voltage must be 15 A *5 ohms = 75 V.
