Car Audio

The series from Philips are for instance based on a firmware mainly used by radio enthusiasts, called ir-mmi: It is very much possible, but it mostly depends on streamlined equipiment that is intended to co-exist. Hope this cleared things up a bit: Check out an app called Airfoil, by Rogue Amoeba. Based on all the research I have done, the answer is no. However, it is possible to create more convoluted setups than a simple bluetooth connection.

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August 17, 9: This is all fine but you are still limited with Bluetooth which is why no one really makes large Bluetooth systems but simple portable devices. As stated before bandwidth with Bluetooth is limited in he first place so you will not get the sound you would over a wireless 5ghz signal and there is still the range of Bluetooth which is very limited. Although it has improved in distance it is still not ideal.

If I am going to want to run a larger system, I would definitely want the quality and Bluetooth will not give you that. Stick with either hardwiring your speakers with a docking station or jack or go wireless.

Connecting external speakers to a television takes only a few minutes with audio cables that insert straight into RCA-type jacks on the TV. However, because the amplifier built into a TV is only powerful enough to drive the built-in speakers, some sort of power source is needed to run the external speakers.

Unlike other wireless platforms, Play-Fi is open, meaning that users can mix and match Play-Fi products from across brands. Unlike similar room correction offerings that use the mic built into your phone, ARC uses an actual separate calibration microphone. This is a standout feature that online makes the Paradigm wireless speakers worth considering. It also features a subwoofer output to help fill larger rooms or simply play deeper bass.

It sports the same drivers and a subwoofer output. However, the amplifier is slightly less powerful W dynamic peak, W RMS , but that loss of power is pretty minor. The biggest difference is the form factor. The PW looks like a small bookshelf speaker instead of a tabletop stereo. I think it would fit well on a kitchen countertop, or a pair of them would work well on opposite sides of a bookcase.

Can I connect multiple Bluetooth speakers to a device playing music

Speakers in Parallel Calculator Simple Calculation for Speakers in Parallel If all the speakers in parallel have the same impedance, then the calculation is easy. Simply divide the impedance by the number of speakers in parallel. Four 8 ohm speakers in parallel: Two 4 ohms speakers in parallel: Not so Simple Calculations for Speakers in Parallel For calculations involving speakers in parallel with different impedance, the following formula is required it can be used with speakers of similar impedances too.

Simply type the impedance of each speaker into the white boxes of the appropriate calculator.

That speaker impedance rating on your towers and bookshelf speakers is held up as a mystery—something strange and mystic, yet dangerous. “You’ll blow up your receiver!” says one “expert”.“Bah! You can run anything you want, just set that switch in the back to 4-ohms” says another. The bottom line is that people are confused about speaker impedance.

Speakers Clint DeBoer Speaker Impedance Rating Explained That speaker impedance rating on your towers and bookshelf speakers is held up as a mystery—something strange and mystic, yet dangerous. The bottom line is that people are confused about speaker impedance. Speaker Impedance Defined I think the easiest way to define speaker impedance is to say that it is the resistance any speaker gives to the current and voltage being applied to it.

In a nutshell, a loudspeaker is a big resister—a really cool one. Speaker impedance changes based on the frequency of the signal fed into it. The loudspeaker manufacturer likely developed a 4-ohm speaker because he know what kind of amplifier would be required or typically mated with it to get the desired sound.

With a lower impedance range, it also opens up different design choices and opportunities. For most people, a 6-ohm or 8-ohm speaker is going to be the norm.

Speaker Impedance Rating Explained

Research all the products your manufacturer offers before you buy anything. Power How wireless is wireless? Does your speaker still need to be connected to a power source to operate? It adds battery power, splash-proofing, and even Bluetooth compatibility. Cost It sounds obvious, but you need to consider your budget.

There are stereo Bluetooth speakers with two separate enclosures you can move around, but of course if you have music that plays left or right, if you move one of the speakers to another area you.

Speaker Connections for proper impedance match A note about amplifiers: You should always use the recommended load for your amplifier. However, if you must use a load other than the recommended load, here is a short guide. Most solid-state amplifiers would rather look at an open circuit no speaker at all than a load. Therefore, you can usually use a load that is higher than the recommended load. Do not use a lower impedance load, as this could cause serious damage to your SS amp.

On the other hand, most tube amplifiers need a load to avoid transformer or tube socket damage. If a mismatch can not be avoided on a tube amp, it is better to go towards a lower impedance rather than too high of a speaker impedance. This may stress the tubes some, but, tubes are cheaper than transformers. As the graphic shows, you connect the positive wire to speaker A’s positive terminal, connect a wire from speaker A’s negative terminal to speaker B’s positive wire, and then connect the negative wire to the negative terminal of speaker B.

How to hook up speakers correctly for proper impedance

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Series Connections: As the graphic shows, you connect the positive wire to speaker A’s positive terminal, connect a wire from speaker A’s negative terminal to speaker B’s positive wire, and then connect the negative wire to the negative terminal of speaker B.

Bose is known only using paper cone drivers pushed into unusually small boxes, never publishing frequency response specs, and suing Consumer Reports for giving them a bad review. Even though paper is a good material to use for speaker drivers, and plenty of audiophile companies don’t publish specs, the perception is that Bose is overpriced junk.

Truth is a little different, Amar Bose was definitely not an evil man, instead one of the world’s great philanthropists, and his company pushed the boundaries of audio more that most people realize. If you have a satellite speakers or a subwoofer, you can thank Bose for popularizing that form factor. If you enjoy a high quality factory car stereo, you can thank Bose for that as well. Bose was doing research using Dummy heads and figuring out head related transfer functions in the 70’s that laid the ground work for headphone and VR breakthroughs that are happening now.

As for the argument that their gear is overpriced, I’ve heard much worse for much more. Profits from Bose smart manufacturing, not corner cutting, has funded research that shaped much of today’s the audio landscape. All of that said, in general, Bose products do sound like shit.

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It shows on the picture by the two AC outputs 7 and 8. I cannot find a download for the manual so I cannot confirm that both of these AC outputs are milliamps but this is what it looks like from the data on their website. Will this damage the unit? The amp comes with FX loop but currently my new setup is running everything upfront. I only want to gate my drive pedals and vibe. The pedals in use are as below:

The Sony UBP-X Blu-ray player also has dual HDMI outputs for video and audio. Like the LG Player mentioned, it is also supposed to receive an update to support Dolby Vision in the future.

Just the thought of leaving your loved ones behind to spend your holiday with people you have not seen in ages sounds absurd. Thirty years have passed since the Moffat High School class of have been together. How much have those twelve high school seniors changed over the years? Did they accomplish their hopes and dreams or are they stuck somewhere in life wishing they could turn back the clock?

Warren once again captures the reader with his well thought out plot set in the peaceful and secluded Mercy Inn. Festive events and emotions fill the pages along with a few twists and turns thrown in to keep the reader engaged. What starts out as a quiet carefully planned reunion turns into chaos and potential danger when an unexpected visitor arrives. Warren is a master at developing real life characters, characters that you identify with, that touch your heart.

In this case there are three, Zoey, Matt and Tommy. Having arrived out of curiosity, they each quickly discover that they are looking for more. But do they know what?


That is, in the one amplifier box, there are two different amplifiers. For the purposes of this article, we are talking about connecting multiple speakers to a single amplifier only, that is, either the left or the right, or any single amplifier. Of course you can connect multiple speakers to both the left and right amp of a stereo — you just need to follow the principles twice, once for each amp.

Check this page for short stories, talk teasers, technical info and words of wisdom from our DEF CON speakers Past & Present. If you are a past or present DEF CON Speaker and would like to contribute to this page, contact Nikita [at] defcon døt org for more info!

If you really want full, rich sound and have a larger space in which to listen to it, you’ll love these 8-inch ceiling speakers from OSD. They mount behind and sit flush with the ceiling for a sleek and subtle look. This makes them especially useful in rooms and outdoor areas where you don’t want large speakers intruding on your space. In addition, they feature true high-fidelity sound that makes any space feel like your own private concert.

Whether it’s a den, a bedroom or even one of your outdoor areas, as long as you have a ceiling space or overhang in which to install them, these speakers will make it feel more inviting at the push of a button. Another great perk of 8 inch ceiling speakers is that they come with a one-inch silk or aluminum dome tweeter and a Kevlar or polypropylene cone woofer to create rich, full audio. These features will allow your 8-inch ceiling speakers to provide excellent mid- and high-range sound in your home theater, your bedroom or out on the porch.

You can also hook up a powered subwoofer to these speakers to get even more depth of sound by enhancing your music’s lower frequencies. The 8 inch ceiling speaker size is recommended for medium-sized rooms and outdoor spaces. Because they provide great sound in an average space, they continue to be some of our most popular models here at Outdoor Speaker Depot.

If you have a larger space or high, vaulted ceilings, move up to the 8 inch size to get the sound you need.


The Basics 1 Choose your topic Well. A good speech focuses on a message, which needs to match the occasion. It should resonate well with the audience’s interests, and it should be important to the listeners. A speech for school is usually open-ended, so choose a topic that you are passionate about. Good speeches depend on delivery and the heart put into it by the speaker.

You can use speakers with unlike impedances and as before, you simply add to get the total load. When you use unlike speaker impedances in a series connection, the larger impedance will have to dissipate more watts than the smaller impedance, and if the sensitivity ratings are the same, the speaker with the larger impedance will also be louder.

Discussed here are some tips that describe the most popular method of wiring Speakers. There are several ways to wire up Speakers, the most common methods are Series and Parallel which are discussed here. Wiring up Speakers correctly to provide the best possible sound, requires some knowledge of Loading, Phase, and Impedance, while understanding Ohms Law will help you to connect your speakers properly. Adding Speakers in series increases the overall resistance of the circuit.

Therefore the resistance of each Speaker is added together, For advanced installations with Multiple Speakers, Series Speaker wiring can be used to increase the resistance of the “equivalent” or “overall” resistance that the Amplifier sees. This allows the Amplifier to run cooler and more efficiently. Series Circuits are “voltage dividers”, and using Ohms Law, one sees the result as a decrease in amplified voltage audio signal to each Speaker.

Since Series Circuits are “voltage dividers” each Speaker sees a percentage of the amplified output from the Amplifier. It is often assumed the Amplifier is producing less output, but it still produces the same output, because each Speaker only gets a percentage of the overall power. However, increasing the resistance to more than 4 ohms of speaker resistance by adding Speakers in Series, will split the amplified audio output from the Amplifier across all the Speakers in the circuit.

The formular for Series Wiring is:

Understanding Speaker Impedance and Speaker Switches