What do you want to do with them? Increase resistance or reduce resistance? To increase the resistance wire in series, to reduce the resistance wire in parallel. Frequency or Hz. doesn't really play into it. Although it is true that the impedance of a speaker changes with frequency, you wire for a nominal resistance. For example wiring two 8 ohm subs in parallel will give you a 4 ohm circuit, you basically ignore the resistance changes caused by the frequency. Likewise wiring two 4 ohm subs in series will give you a 8 ohm circuit. Speaker resistance is normally taken at 1000 Hz. which is how the impedance rating is determined 8 ohms at 1000 Hz. When measured with a DC ohm meter you will always get an impedance of less than the impedance rating of the speaker, DC is zero Hz. an 8 ohm driver will read somewhere in the 7 ohm range, a 4 ohm driver somewhere in the 3 ohm range.

Head phones need to be taken off of a low level output, such as off of the preamp circuit of the source.. They are not designed to be used off of speaker outputs, you can fry them that way.. IF you do use them with the speaker output, I would make sure to add a 500 ohm power resistor inline with the headphone jack.. Something that would handle at least 50 to 75 watts, that should give you a good level of protection for the head phones, and could make them useable at the same time. john

Yes, you most likely will need to exchange them for 8 ohm drivers if that is what you need. You can wire the two 4 ohm speakers to achieve 8 ohms, but you can not change a single 4 ohm speaker into 8 ohm speaker. You can add a resistor to it and electrically get 8 ohms, but it isn't a practical solution, depending on the wattage you are driving them with, the resistor can be fairly large.

@@johnnyplemons thanks a bunch

Yes each crossover is good for 300 Watts Per channel, RMS, not peak. Instantaneous Peak is more along the line of 500 to 600 watts.

Not sure about the exact Hex key size, but the tee nuts are 8-32. That would make the Hex Key somewhere around 1/8" at a guess, See www.mavin.com/store.php/hardware-and-misc-products/speaker-hardware-kit-6-tee-nuts-w-6-socket-caps-1-8-32-screws for a complete kit of 6 pieces..

Yes, I was able to make a repair on the speaker, there was enough material left to make it work.. john

If your Amp supports 4 to 16 ohms, and you end up with an impedance that is within that 4 to 16 ohm range it should work fine..

No, you would need to have four 4 ohm speakers to keep the stereo, doing it that way you would end up with two 8 ohm circuits. One for the Left channel, and one for the right channel.

@@johnnyplemons Thanks John

It changes from car to car, due to the color choice of wire, there isn't a common way of knowing. Try doing a search for your specific vehicle. Or use a multimeter to get your answer.

Sure you can do that, but with a slight modification. The Tee Nuts for wood have teeth that grab into the wood and embed themselves for use. For plastic, use the tee Nuts without the teeth, and then bond them in, epoxy or some other bonding material to make them work for you.. I can see it working. john

@@johnnyplemons amazing! Thank you very much

There are some variables to deal with.. You will need to understand what impedances the stereo in your Tahoe is working with. The best and safest answer is series which will not blow up your stereo. It will add resistance to your system and thus reduce the power output of the source, but it will also not blow out the amplifier, so it is safer. There are many factors that you need to take in account. You can fly by the seat of your pants and just add a pair and see how they sound, but you may or may not shorten the life of your system. That said, you can replace other speakers with lower or higher impedance drivers to balance out the system to where it needs to be in order to keep everything at the proper impedance. It will take some planning to do it right, and you may end up with a series parallel configuration once all it done..

@@electromavin the Original Tahoe just had 4 door Speakers and 2 Tweeter on Dash , a Sub Woofer was added with a Line OutPut Converter .to the OEM Amplifier . but SOUND is Cutting out Over Bumps - i suspect Somthing id Shorting out under the CONSOLE - will take appart when Weather Gets Warmer

Sure, electrically that would work, but there is a bit more to building a speaker than just throwing a couple of speakers together. But if all you want is a speaker that will handle 30 watts, that would work.

@@johnnyplemons Thank you Sir

Hi Brad, you can always check a speaker with a multimeter, but you will only get the resistance at DC, Speaker as they go through a frequency range, will change resistance. So a speaker at DC will have a resistance, a speaker measured at 1000 hz. will have a different resistance. SO your measurements will only give you an idea of what you are working with, not an exact.

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If each set of voice coils is 2 ohms, you have 2 positives and 2 negatives, run a wire from the positive on one set of hookups to the negative terminal of the other set of hookups. That will put the two voice coils in series. It will still be able to handle 400 watts RMS

I found this on Auto Zones website.. It shows that the Pink is Positive, and the Blue White is Positive.. repairguide.autozone.com/znetrgs/repair_guide_content/en_us/images/0996b43f/80/24/c5/38/large/0996b43f8024c538.gif Hope it helps john

Thanks,it will help me

Not exactly sure what that could be?? It could be that the driver is being over driven, that is to many watts being sent to the driver.. A driver is designed to handle a specific number of watts, for example 20 watts, if you are sending 40 watts to the driver, it can run hotter, since you are sending twice the power.

You did something wrong, and it is not related to what was being taught in the video. A series connection is one of the most basic circuits, and only going to the most extreme of applications are you going to have a fire. The speakers voice coil would burn out long before anything would burst into flames. The temperature would need to exceed 451 F to cause a fire, so you would need to go to a very extreme point with a speaker to cause a fire. A very very extreme point.Sorry, can't really envision your issue and how it applies to this video.