The dB is a logarithmic way of describing a ratio. The ratio may be power, sound pressure, voltage or intensity or several other things. The most common crossover frequency recommended and the THX standard is 80 Hz. On-wall or Tiny 'satellite' speakers : Hz. Small center, surround, bookshelf: Hz. Mid-size center, surround, bookshelf: Hz. Originally Answered: What happens if I send the left channel and the right channel into one speaker? Yes, but not in the way you think.
If you have only one speaker and want more power , there are ways to do that by connecting the one speaker between the two outputs not to ground. Navigate to the speaker setup submenu. Select channel level or speaker level in some receivers you need to enable the test tone Select the Left speaker. If you are creating a setup for music alone, then a center channel speaker probably isn't necessary.
Here's why. Music , even today, is designed for the most part to run in stereo mode. In this setup, a center channel just isn't necessary as the main music will already be mixed into both the left and right speakers. If side placement isn't practical, place your surround speakers a few feet behind your listening position and face them forward. You'll want your surrounds one to two feet above ear level to get the best sound effects.
Place your surround speakers 1 to 2 feet above ear level for immersive special effects. They each have a horn and two inch speakers and I think they sound really good. But they are unpowered or passive. Therefore, I had to find an amplifier before I could get any sound out of them. Thus, the first thing to do was to find the specifications of the speakers.
With that information, I was ready to choose an amplifier. Now there are two main rules of thumb when choosing an amplifier for this matching amplifier to speakers guide. Their job is to pump out the sound. Thus, the more watts they get, the more work they have to do. Your speaker can only do so much work over a long period of time. Remember our specification sheet example. There are two numbers: one was the Power capacity which was watts.
It is way too much work for them to do but watts is fine. Now your amplifier needs to be 50 percent more powerful than your speakers.
For this same reason. This is because your amplifier is also doing work for you. The job of the amplifier is to pump watts to your speakers.
Think of it this way. If you are on foot, you can walk a lot further than you can run before you are completely exhausted and have to stop. Therefore, if my amplifier is rated at watts pushing a watts speaker, it will be equivalent to an easy paced walk.
But if instead it is rated at watts pushing a watt speaker would be more like the equivalent of a strenuous run. You would be pushing it to its limits and it would wear out pretty quickly.
Thus, whatever you do do, do not under power your speakers unless you want to ruin your amplifier. The bottom line of this reasoning. Since my pair of JBL jrx each had a power capacity of watts in a 4-ohm load I was looking for an amplifier that could push at least watts per channel in a 4-ohm load.
Now we are getting back into Ohms, a concept explained above. So that brings me to the second rule of thumb. Now, amplifiers are generally designed to work with 4, 8, and ohms speakers. But it is very important to know exactly what your amplifier can handle.
Please do not make that mistake. It is not as bad but it is still not good. But remember the first rule of thumb. Thus, I also need watts to power my speaker so I need watts in a 4-ohm load.
Here, as I could observe on the specification sheet, it is capable of pushing watts in a 4-ohm load per channel. This means per speaker left and right one speaker is a channel for this setup, so we have two channels, for left and right.
I could not ask for a more perfect match. I have even got 50 extra watts of power per speaker and now as it appears on the specification sheet, it is even capable of handling an impedance of 2 ohms.
This is another example to complete our matching amplifier with speakers guide. We are doing the same evaluation as in the paragraph above. With this information, the next one, you can do it yourself.
The speakers work from 4 to 8 ohms and the amplifier needs speakers with a minimum of 4 ohms. We classify the boxes by their sensitivity: 84 dB. They are not very sensitive. We see what power they recommend to move the speakers: between 30 and W. As the boxes are not very sensitive, we need an amplifier that is close to the maximum of the recommended power. The Rotel outputs 60 W, and 60 is slightly less than half the range 30 — It would not be a recommended amplifier.
We would need an amplifier between 80 to W continuous, for example, the Rotel A This topic is handy, why? A very common landscape. But what if I wanted to add more speakers? Well before I do that I need to make sure that it has the same impedance rating as the speakers I have already got.
I would add one extra speaker to each channel in parallel giving me a total of two speakers per channel up to now I have only one speaker per channel. Therefore, the new load per channel comes to 2 ohms 4 ohms divided by 2 speakers and that is a low number of ohms.
Two speakers will be connected to each other in parallel. The other two loudspeakers will be connected to each other, also in parallel. We then have two sets of two speakers, in which the speakers of each set are connected to each other in parallel. Well, now what you do is connect those two sets to each other in series. Using this connection, all four speakers will have the same total impedance as a single speaker, so the amplifier does not find it out.
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McIntosh Power Meter. There are three broad categories as to why speakers can only handle a certain power level: Thermal. Power is hot! Excessive power will heat voice coils to the point where they can expand and bind up in the voice coil gap; heat can deform VC formers, soften adhesives, burn crossover resistors, all kinds of things. Speakers can tolerate some thermal abuse for short periods, but if too much heat builds up for too long, the speaker will suffer a thermal-related failure….
This is known as compression , because the speaker compresses its output in response to a greater input signal. Ultimately, there are two takeaways: a. View full profile. Read the Complete Thread.
Pogre posts on April 05, I had it all wrong on how those work. I didn't realize they changed pitch depending on frequency. I thought just the turning of the blades in a special cabinet or something was all it was. It's a little more sciencey than I thought. Pretty cool design. Pogre, post: , member: Those rotary subs are cool. It just dawned on me that I've never seen one in action. So I'm looking up videos and saw for the first time that there's a spider behind the fan blades.
I never noticed that before and now I think these work much differently than I previously thought. Those rotary subs are cool.
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