One-Wire Alternators: Are They Better Or Just Easier To Hook up?

Originally Posted by ogolban 1. Which would be a better choice? Connecting in parallel or serial? Connecting in series, especially dissimilar model speakers, may affect frequency response and degrade the sound. You’re also increasing the load impedance presented to the amp, and lowering output wattage. If you are using this type of connection for sound coverage like for a party and don’t care about sonics, then series connection is acceptable.

Can I run 3 Ohm Speakers on an Onkyo TXSR-501?

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.

Eight-ohm speakers can be run with a 4-ohm amp. One 8-ohm speaker plays loudly with only half the current from the amp, but if two 8-ohm speakers are connected in parallel, the resistance in each speaker falls to 4 ohms to match the amp.

This article addresses some of the more common methods used, along with some pros and cons. All examples show a monophonic set up. A stereo version would entail 2 sets of speaker systems, a left and a right channel. If you plan on playing the radio, recorded music or CD’s thru your system, I reccomend that you wire your system for stereo. We are not discussing 70 volt systems in this article. Some offices and buildings are wired this way. The giveaway is a transformer on the speaker, or near it, marked with taps for the speaker usually 8 ohm and taps for the 70 volt supply that is used to deliver the music to the speakers.

If your power amp has only a 70 volt output for its audio systems, then this article is not for your set up. See 70 Volt systems instead How do I get X amount of speakers to equal 4, 8 or 16 ohms so that my power amplifier can drive them? It may not be possible to exactly match your needs, but you should be able to get either a 4, 8 or 16 ohm load out of them, and this may be as close as you will get. Your effort will involve some combination of series and parallel speaker wiring.

The First rule is that of consistency – each one of the speaker drivers or cabinets you use should be the same as the others.

Technical Specification

Thanked 0 Times in 0 Posts Rep Power Sign in to disable this ad The reason I am asking is due to an earlier post, I am trying to find speakers that will pair well with my Peavey cs MORE confusion on my idiot part. I have been reading about the whole speaker power concept to the point where i am stumped.

For example, six 8 ohm speakers hooked in parallel would be an amplifier load impedance of around to ohms. Or, conversely, if each speaker IS ohms, then if six of them were hooked in series, this would add up to a ohm load for the amplifier.

Houston, Texas Many vintage Infinity and Acoustic Research speakers among others are common examples of speakers with low impedance ratings, sometimes very low. Since their woofers used the acoustic-suspension system i. To get that subwoofer-like bass, the engineer allowed the the larger models, especially those from Infinity and AR’s ultimate model the AR9, to dip into the area below 2 ohms which meant you needed to use one heck of a beefy amplifier to hear their full potential.

One mid-fi company still believes in acoustic-suspension: Not surprising since their founder used to work for Most of their offerings are sealed, though their very nice Classic 4 floorstander has its 10″ woofer operating in a ported enclosure. It makes it all the way down to 27Hz – wow. Using a sealed system to reach that same number would most probably drive its rather low 86dB efficiency rating even lower.

I always wondered if this fussy – and expensive – characteristic is what helped contribute to the near demise of the acoustic-suspension system. To use an extreme contrast to that Classic 4, Cerwin-Vega’s CLS10 , also using a ported 10″ driver, has an efficiency rating of 90dB and makes it down to only 38Hz


Never, ever connect a PA amplifier into speakers with a lower Ohm rating – this will result in either the amp or speakers or both being damaged. Running more than 2 speakers from a power amplifier If you double up speakers connected to each channel of your power amp, then how you connect them together will affect the combined number of Ohms. If two speakers of the same rating are connected in parallel then their Ohm ratings are halved. Working on the example at the top, if your speakers are watts RMS each at 8 Ohms, then connecting two in parallel will change the load to watts at 4 Ohms per side, so you have to find a power amplifier to match that.

A maximum of W output from each speaker (L-R) can be achieved when connecting 8-ohm speakers to the PS power amplifier, and a maximum of W output from each speaker (L-R) when connecting 4-ohm speakers.

Equalizers What are power amplifiers? Power amplifiers are devices that amplify electrical signals that have been adjusted to an appropriate volume and tone sent from the mixer, to a level that can be converted to acoustic sounds by the speakers. There are various types and models of power amplifier, varying in size, shape and output power, which are suited to different situations. There are three major types of power amplifier, the characteristics of which are described below. Stand-alone power amplifiers amplify the signals sent from mixers to make the speakers produce sound.

Several stand-alone power amplifiers can be installed together in racks, making it comparatively easy to build a large-scale PA system. Since the mixer and power amplifier which require a power supply are integrated into the PA system, only one power supply connection is required, and there are less connections to make than with stand-alone amplifiers. Since the built-in power amplifier is designed specifically for the speaker, the speaker and power amplifier combination feature superior compatibility, allowing the speaker to perform to the fullest.

The mixer output can connect directly to the powered speaker, so there are less cables required. To build a PA system as easily and simply as possible, use either a powered mixer or powered speakers, which require fewer connections. However, stand-alone amplifiers offer a higher level of freedom, for expanding a system and for planning where to position the equipment. Choosing power amplifiers In this section, advice is given about choosing a power amplifier used in combination with passive speakers.

The output required by the power amplifier is determined by the number of speakers connected and their impedance.


Did this video help you? Haaaaaaaaaaa go to school Dillon Mccray: If you do the big three wire upgrade on your car it helps alot just look up the big three upgrade on YouTube if you haven’t done it already CallMeDaddy III: So I could hook up 2 8ohm subs to a 4ohm amp? The amp is mono watt Max and the subs are 8 ohm w rms w max.

newbie – I have a watt 2 ch receiver that has a 8 ohm impedance. I wanted to use with 2 sets of speakers (2 different rooms). Concern is that one pair (A set KLH A) is listed as ohms/5.

Prince Clash 1 year ago Reply Prince Clash 1 year ago Reply please can u tell me how to connect those magnet wires into mobile jack JustinL3 2 years ago Is it ok if you use conducting wires? YunusK 2 years ago Reply Do you mean wire with no insulation? Unfortunately no, the current must be forced to go around the coil, but if it is not insulated, the current would just flow straight through the big chunk of the coil to the other end without creating the electromagnetic force.

Did this for the second time with my physics students, they love it! Thin, insulated magnet wire is the best. The thinner wire makes the resistance more like 8 Ohms, the resistance of a normal speaker. Thicker wires have less resistance, but my resistance is still around only 1 Ohm, so after a while I always overheat the speaker and smell some burning smell. When I use a really big PA system to drive it, I see smoke, but it is sure loud!

Amplitudes: The Mesa Boogie Blog

I was just reading about what you are asking about Personally, I am going to run my two 8 ohm speakers in parallel at 4 ohms 2x Additional tonal changes are slightly spongier attack and altered OD character, more complex and timbrally rich with more overtones ala the mid and top end emphasis. Parallel wiring- low end and lower mid emphasis with more top end high sparkle or fizz, depending on the speaker and rig that can make the high end raspy or harsh to some.

With the switch in the 8 ohm position, current is unlimited, 4 ohm speakers pull more than the amp can handle, things get hot, and UL gets nervous. With the switch in 4 ohm position, it limits the current to keep things from getting too hot.

Demystifying speaker impedance–what audio shoppers need to know The Audiophiliac clears the air about the mysterious subject of speaker impedance. This letter sums up the typical quandary: I’ve done a lot of research and found that owning a 6 ohm receiver limits the selection of brands that I could look at in store or online. Rotel I’m all for the speaker upgrade, but he went off track with the concern about his “6 ohm” receiver. The writer mistakenly thinks he’s limited to buying 6 ohm rated speakers.

Any 8-ohm rated speakers would work just as well, and since the vast majority of speakers are 8 ohm rated, his choice of speakers is wide open. Back to the question at hand:

4ohm amp to 8ohm sub?

Introduction We have been designing, building, and selling DIY speakers–using full-range drivers–for more than 20 years now. We are one of the largest manufacturers of these types of speakers anywhere in the world. For the first time, it’s possible for you to buy directly from a manufacturer. In this way, you get the most value for your money AND the best sound possible. A lot of work goes into making a true ‘full-range’ speaker, one that approaches 20, cycles in the treble.

Answer. Yes, you can use 2 in series, IE daisy chain them to add up to 8 ohms. For stereo you would need 4 speakers not 2. mono, 2 not one.

Can’t find your answer? Get the answer Jan 31, , 6: Jan 31, , 6: If your amp is saying 8 ohms, and nothing on fine print is saying it can handle lower, then whatever you do, DO NOT make it see less than 8 ohms. So the receiver watt 2 Ch with connections for an A and a B set of speakers booklet shows: Also assume if A wired serial and B wired paralleled, can I at times just play the A or just the B ie just play music in 1 room?

Truly appreciate your help! If the receiver can handle 4 ohms then it would put them in parallel to provide greater power. You can add an outboard speaker selector with impedance matching to maintain an 8 ohm load to the receiver. You can also use an impedance matching volume control for each pair. These allow you to set the impedance that the receiver sees as well as allowing control of the volume of each pair.

4/6 ohm and 8 ohm speakers on same set-up

That’s a pretty significant difference! Maybe it is a “numbers” or rating thing, and they de-rate amp with a mis-matched speaker for improved amplifier reliability? Anyhow, other than the “power thing”, the sound of different speakers is very subjective.

You cannot hook up any more cabinets at this point, as you have already reached the specified minimum impedance of 2 ohms! If you are using two 8 ohm cabinets, the total impedance for your load will be 8/2 = 4 ohms.

You won’t damage the speaker or the amp. If you drive the amp too hard for too long, it will simply shut down to protect itself and cool off. Loudspeakers impedance rating are nominal, i. In reality, loudspeaker impedance is not a single number, and is indeed different at every frequency. The lowest impedance you will see out of a typical loudspeaker will typically be a few tenths of a Ohm above the DC resistance of the voice coil of the transducer that has the lowest DC resistance, and the impedance can go as high as Ohm or more in the low frequencies where the driver’s mechanical behavior couples strongly to its electrical behavior.

Here the lower line of the first graph shows the electrical impedance magnitude behavior versus frequency of typical well designed two way home loudspeaker. The minimum impedance is approximately 6 Ohms, and the maximum is over 20Ohms, and the impedance changes across the entire frequency spectrum. So impedance is not a single number, and the nominal impedance rating of the loudspeaker tells you essentially nothing.

Now, in regards to the amplifier channels. Modern receiver amplifiers are voltage sources, and pretty good ones at that.

The AV Receiver Power Ratings Game