So 4 Ohm speakers could be classified for Hi end audio gear? So does the Less Ohm speakers are so costly than more ohms speakers? And what could be the "Marketing strategy" behind the 4 Ohms speakers, as they dont match with the most of the amps out in the market and the people who chose those needs to invest lot? Have anyone used 4 ohms speakers and matched with right pair?
There are amps that give double the power for 4 ohms, depends upon the design. If a speaker presents a 4 ohm load, it needs twice the current as compared to a 8 ohm load. So whats the use of using a high cost low-impedence speakers and Amp ,if there is no great to feel on SQ So its better to be away form 4 ohms speaker set-up and enjoy with the normal 8 or 6 ohms which is comparably low cost and equal performance.
Adding more to what I said - Even with 8 ohm speakers, the designer can design them with high efficiency. Like what corElement said, there are other vaiables that designer will consider for making a speaker powerful. Having said that, the designer might try to make a speaker as powerful with 8 ohms rating, but beyond a point, in the course of making the speakers still powerful, it might ultimately lead to lesser impedance.
To give a simple analogy - It is like trying a design a smaller engine equivalent to 8 ohm speaker efficiently and try to squeeze more power as much as possible from that small cubic capacity engine.
If the engine designer wants more and more power, then he will ultimately design an engine leading to increased engine cubic capacity. The best example is the 1. Fiat has done it's best to make such a small engine highly efficient and churn out enormous power. In the pursuit of making it more powerful, Fiat hit the design limitation and that is why they designed 1.
Same applies to 8 ohm speaker vs 4 ohm speaker. If the speaker impedance reduces.. If not.. If the speaker is of high impedance.. This is reverse of point c. In reality.. What is to be seen is the constancy of impedance over the freq range and THIS IS what decides which speaker is better than the other. If speaker A provides a constant impedance over the freq spectrum evben though it may be 4 ohms.. I stand ready to be chided and corrected! Speaker impedance has nothing to do with quality.
It depends on components used to make the speaker. A speaker's rated impedance is the impedance seen by amplifier at 1kHz. The impedance is usually lower for lower frequencies as woofers draw more current to generate low frequencies. A speaker is a reactive load including cross overs. So the current they draw is different from a resistive load of an equal "Ohm" value.
Amplifier manufacturers understand this and state amplifier's load driving capability at lower loads. So an amplifier rated at 60W for an 8Ohm speaker may have a capacity to produce W at 4Ohm. It's generally advisable to buy speakers with 8Ohm impedence, since most speakers are made with that specification.
Last edited: Jan 6, Thtpro New Member. Here is an excellent article for you consideration-- It does not answer your question are 4 ohms better than 8 ohms-- But it does go into how much power is enough How Much Power Is Enough? Home Theater. Joined Jan 5, Messages 7 Points 0 Location new york. CorElement, If I have a 4ohm 86db w speaker and my amp is rated 80w at 8ohm then I would think twice.
Because the sensitivity is showing that the speaker draws 2x more db than the 91db speaker, add 4ohm to that and you have two variables saying "no In your first situation you had given the example with sensitivity of 86 db. In the above ex. Of course it will never happen again. And I wondered why I was always disappointed with my 4 ohm speaks.
I have a bit of a mixed bag in Terms of speaker impedance, I am looking for a little advise to see if I am doing the right thing. My setup is as follows:. With our speakers this happens in the field of ohms.
My concern is about having the rear speakers in series. Missed of my sub crossover in the post: It is set to Hz on the amp, with the crossover set physically on the sub to max at Hz. I already have Yamaha NS P centre n surrounds, of 6 ohms impedance. Would appreciate a reply directly to my email Thanks. Wharfedale E. Seventy — Thanks for advise. Hi I have a denon xh amp with jamo speakers. All speakers rated 6ohms. As long as you are wiring them in series, and they are identical speakers, you should have no performance issues.
The 12 ohm load is actually quite a bit easier on your amp. I have an older Samsung bluray player that was also a 5. All speakers are 3 ohms. If I am going to upgrade to a new receiver, what features should I look for most? A 3ohm load is hard for any amplifier. If you are buying a new receiver, make sure it has pre-outs to support that amp.
I have 8ohms 2 pairs for ceiling speakers and a front speakers , what Wld be the matching Receiver? Any receiver on the market will be compatible with 8ohm speakers. Hello Tom or Clint.
What device do you recommend for hz cutoff to the subs.? Variable be nice. It looks like your receiver pushing full range to all the speakers and then only Hz on down to the sub. If you have the option, run the speaker wire to the subwoofers speaker wire inputs.
Then run the wire back to the speakers. Hello Tom or Clint, I have a samsung hwk soundbar that has 2x wireless rear speakers my question is if I obtained another pair of samsung wireless speakers could I pair them to the same soundbar making 4 speakers connected wirelessly, many thanks. It supports Atmos 5. I owned an LG home theater sometime in May Today three of its speaker series are no longer in use, i mean no more sound. Please help me what to do. One or both will need to be replaced.
I have a Yamaha RX-V Wanting to purchase Krix Tropix 6. The specs of the speakers — Low Frequency Driver: Nominal mm 6. It mostly depends on how loud you want your music and how far away you are sitting. As far as impedance, they will work together fine. An 8ohm load is exactly what your receiver wants to see. But for background music, these will work perfectly together. Your email address will not be published. Comment Name Email Url.
Menu Skip to content. 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. Speaker Impedance Defined. This is a diagram of a fairly basic speaker select switch implementation. About The Author. In-ceiling Surround Sound Speakers June 29, 1.
Choosing the Best Computer Speakers June 25, 0. Home Theater Setup Simplified May 28, 1. Thanks for your time. Richard Hammond. December 25, at pm. December 26, at am. January 17, at pm. January 6, at am. January 21, at pm. January 22, at am. February 14, at pm. February 15, at pm. April 21, at am. May 5, at pm. February 27, at am.
March 27, at pm. March 30, at am. June 5, at am. June 9, at pm. I adjusted it to be correct for a 6-ohm speaker. June 25, at am. August 20, at am. August 17, at pm. November 2, at pm. November 7, at am. January 30, at pm. February 11, at am. March 30, at pm. April 7, at am. So the question is, what ohms should I wire it for? July 11, at am. July 15, at pm. July 31, at pm. October 19, at pm. November 26, at am. December 27, at pm. February 27, at pm.
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Updated on November 13, Michael Barton Heine Jr. Lifewire Technology Review Board Member. Article reviewed on Mar 05, Tweet Share Email. In This Article. About Speaker Impedance.
Audio recording, processing, mixing, storage and playback all happen around nominal line level. Electronics including analog-to-digital and digital-to-analog converters are more easily cost-effectively designed at line level due to the low-current nature of line level. A speaker is responsible for oscillating back and forth to reproduce audio signals as audible sound. Its motor made of a voice coil and magnetic structure requires speaker level signals with significant electrical energy to convert into mechanical wave energy sound waves.
The relatively robust nature of the speaker transducer means it needs more current. Lowering the impedance is one way of achieving this. The increase in current also causes speaker cable to be relatively thick lower gauge than typical audio line level or mic level cable.
I just wanted to state how interconnected all the amplifier and speaker specifications, including impedance, are. In addition, this is only if the manufacturer is following the rather loose standard! The standard is purposely made simple due to the incredibly complex nature of speaker impedance and the difficulty of mapping these complexities with a standard. The rated impedance values of speakers and their power amplifiers are often a way for manufacturers to state clearly or unclearly what their products are designed to handle appropriately.
Lower impedances mean higher currents. Higher currents mean more heat dissipation in the amplifier and speaker. This is why power amp manufacturers specify the lowest load impedance the lowest safe impedance value of the connected speaker s. Is there a way to get information on the actual impedance ratings across the entire frequency response of a speaker? Unfortunately, manufacturers do not typically share the impedance graphs of their speakers. Fortunately, there are third-party testers that measure and publish impedance graphs of various loudspeakers.
Stereophile is one such company. Check them out at stereophile. The Aperion Intimus T pictured below is a 2. This is due to the resonances and reactance of the driver s and the enclosure s. Of course, speakers with multiple drivers are wildly complicated to understand in terms of impedance. Furthering our understanding of actual speaker impedance will be the focus of the next section.
Technically, the phase angle determines the degree at which the current will lead or lag the voltage waveform in a reactive circuit. In inductive circuits, the current lags behind the voltage, yielding a positive phase angle.
In capacitive circuits, the current will lead the voltage, yielding a negative phase angle. The phase angles of a speaker actually tell us more about the role of the amplifier than about the speaker, even though the phase angles are inherent to the speaker design.
Here is a table that compares the power dissipated by an amplifier and the heat dissipated to the power transferred through the loudspeaker at various phase angles:. The peaks are produced by resonant frequencies and back EMF, while the troughs happen when the reactance portion of the speaker impedance drops to zero. This means that any change in voltage has an immediate effect on the charge in current through the speaker driver. A speaker driver is designed with a conductive voice coil attached to a moveable diaphragm.
The voice coil is suspended inside a gap in a magnetic structure. As electrical audio signals are passed through the coil, a changing magnetic field is induced, and the coil and diaphragm oscillate. Ideally, the diaphragm will move in the exact same waveform as the audio signal to produce sound that is completely representative of the audio signal without distortion. To learn more about speaker drivers, check out my article What Are Speaker Drivers?
How All Driver Types Work. The key point here is that speakers have conductive voice coils and these coils naturally have electrical impedance. There is a constant DC resistive element to the voice coil and speaker driver as a whole. This electrical resistance is the same across all frequencies and is often at or just below the minimum impedance value of the speaker driver. The more interesting part of the frequency-dependent impedance of the speaker driver is the back EMF and the reactance of the driver.
The speaker driver has a fundamental resonance frequency Fs. This is the frequency at which the speaker driver naturally wants to vibrate. It is easy to make the driver vibrate at its resonant frequency and more difficult to make it vibrate at other frequencies. Simply tapping the speaker diaphragm will cause the driver to vibrate at its resonant frequency.
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