Sorry, there is no amplifier with an output impedance of 4 ohm on the market. Scroll down to related links and look at "Interconnection of two audio units". Look for an amplifier and a loudspeaker.
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.
Don't know how you have subs wired but should be 4 ohm load is what your amp will see.
Sure, If you mean your stereo has 4 ohm output and using 16 ohm speakers. The volume will be reduced somewhat by doing this, but it won't harm the stereo. If you have 4 ohm speakers and stereo is designed for 16 ohms you can do it ,but the amp will run hot and you may suffer damage at high volume to the amp.
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.
if you put 2, 8 ohm speakers together on the same channel you will trick the amp into seeing a 4 ohm load, it is not advisable to run a 8 ohm coiled speaker on a 4 ohm amp unless you do the above. So if you want to run 2 8 ohm speakers from a 4 ohm amp this will work the best although the amp will need to be hefty as its worse to underpower a sub than overpower it! I have used a 8 ohm speaker myself on a car amp and had no problems but it was not a cheap entry level amp! some amps will take it, others will get hot and enter protection mode. Hope this helps!!!
Ohms is a measurement of resistance between the amp and speakers. Most home audio is 8 ohm, if you run 4 or 6 ohm speakers you cut resistance down and get more power out of the amp. Say your stereo is 100X2 @ 8ohm, if you use 4 ohm speakers you should get 50% more power BUT the amp is working twice as hard and can burn up.
If it's running so hot you can't touch it, in most cases it will be due to either the way the speakers are hooked up or the impedence of the speakers. You can incresse the resistance to the amp to have it run cooler by connecting speakers in series or getting speakers with a higher ohm rating. The lower the resistance (2 ohm, 4 ohm, 8 ohm) the more current flows though the amp making it hotter. Remember if you hook multiple speakers in parallel it will cut the resistance in half. So if you connect speakers that are 4 ohm to the same channel you are running at 2 ohm. Check your amp's ratings.
Yes, you can safely use a 4 ohm amp with one 8 ohm speaker, but you will not achieve full power. The 4 ohm amp is designed to supply a certain voltage into a 4 ohm speaker. Supplying that same voltage to an 8 ohm speaker will result in half the power, or -3dB. For maximum power, use a 4 ohm speaker, or two 8 ohm speakers in parallel.
If you connect two 8 ohm speakers to the average car amp, then yes, probably. Most car amps can handle a 4 ohm load, which is what it would be.
From what I can tell the front door speakers are 6x9". The rear speakers are 5.25" (round). The dash speakers are 2". What's not clear is if the Infinity system is 2 ohm or 4 ohm. But installing 4 ohm speakers should not cause any damage, just less sound sue to higher impedance.
Yes, the L-7s are great. For the amp, you first need to find out whether the sub woofers are 2-ohm, 4-ohm, or 8-ohm. Depending on the answer to that question will determine whether or not you'll need a mono amp or a dual channel amp as well as the wattage.
The short answer is yes, the long answer is maybe. Example: my Toyota's stock CD player says on it specifically, ''4 ohm speakers'', the stock speakers, however, say they are 6 ohms and they measured on a volt meter at 6 ohms. Certain higher end car audio speakers are 2 ohms but are designed for 4 ohm head units and 4 ohm head units can power 2 ohm car speakers. 4 ohm and 8 ohm speakers will work, however, different ohms can (but not always) cause different volumes out of each respective speaker. If your equipment if really old or really crappy it might get fried or if it is modern and of good quality it might get fried if you run the amp at the higher end of its output (high volume). Short answer, you will be fine just don't ask the amp to work super hard. Medium answer, I wouldn't bet more than a few hundred bucks of audio equipment on it and don't stress the amp. Long answer, its complicated and always best to match ohms even though the ohm rating is an average and 4 ohm speakers can present ohm loads of way less than 4 to over 10 depending on their output at the time. Also if you ask different people you'll get different answers.