This is due to the relationship between voltage, current and resistance in electronic circuits; for a given voltage, a lower impedance means a greater current. Why is is not 1200W @ 4 ohms???? If you plug in an easy load, a nightlight, into your wall socket, it will allow only a few watts to flow. @8ohms it might output 100 watts but at 4 ohms it might output 190 watts. Thanx Bob and greenboy! Our primary goal is insightful discussion of equipment, sources, music, and audio concepts. It's one problem for your server to have an issue but totally different for it to, day after day, continue having issues that don't get fixed.

Loudspeaker Impedance: Series vs Parallel Connections, Movies, Ultra HD Blu-ray Discs, DVDs & Theatricks. @8ohms it might output 100 watts but at 4 ohms it might output 190 watts.
But in the home audio environment, supply voltages are higher, and you are trying to drive many speakers from the same power supply. For example. I know that the current from the output stage of an amplifier required for a 4 ohm speaker is greater than that of an 8 ohm speaker. You can buy excellent speakers in both 4 and 8 ohm and it's up to the designer what compromises they're willing to make to achieve the performance they're striving for in the budget. Just make sure you match the speakers ohms with the amplifier ohms :). woo...i was hoping i wasnt wrong. Picture it this way: My imperfect analogy. The amp would be 1200 watts at 1 ohm bridged, not recommended. But many times good crossovers and drivers (read good speaker) will produce a speaker that is 4 ohms or less. Supporting Members list unlimited gear with no listing fees in the Classifieds, get instant Keyword Alerts, and get Free Shipping at the TalkBass Store. Speakers have dips in their impedance plot, some of them severe. Accoding to ohms law Volts X Amps = Watts and is so derived in other ways such as Volts(squared)/ohms = watts.

A situation that is likely to occur when the amp is already in place and then speakers that exceed that capability are chosen after the fact. Considering most car amps are ideal for 4 ohms speaker, these tend to work best. Discussion in 'Amps and Cabs [BG]' started by keyboardguy, Feb 22, 2008. Discussion in 'Amps and Cabs [BG]' started by Mo' bass, Mar 31, 2006. Dance to the radio. Not good to run at 2 Ohms for any length of time. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. I know that the output therefore would be louder given all other conditions being the same. JavaScript is disabled. In general, speaker impedance (which cannot really be defined by a single number) is completely uncorrelated with sound quality. One isn't better or worse, they're just different.

I'm a newbie so hi to everyone, I'm in the process of buying some PA speakers and this point is bothering me. Many expensive speakers are 4 ohm (sometimes less) because the designers reason that if you're buying an expensive speaker you can afford an expensive amp and not having to stick to an 8 ohm limit gives them more flexibility. This only works if the speakers' nominal impedance is 8 ohms. The down side is that less turns of wire means a weaker magnetic field is formed so the speaker may be less efficient requiring more power for the same amount of sound.

Types of Connections: 4 Ohms and 8 Ohms. The time we spend writing this content should not be considered so worthless that the server should feel free to destroy our content. Also, 4 ohms does not present much electrical resistance to the amplifier so a low quality amp may put out too much current too quickly and overheat. Gold Supporters see zero ads! Thank you for your support! You will have created something." C. 2 -8 ohm cabs will be louder than 1 -4 ohm D. relatively, if you gave the cabs a volume level/loudness/rating, 1-8 ohm at say level 2, the 1-4 ohm would be 3, but 2-8 ohm would be 5. TalkBass utilizes technology from //Commerce that may give us a small affiliate commission on purchases made via links on our site. Talking about speaker impedance without including phase angle is meaningless. For example a typical car amp could be rated @ 50 x 2 @ 4 ohms, but only 75 x 2 @ 2 ohms. The lower the impedance, the more easily electricity (the signal or music) flows through the speaker. The difference is almost always miniscule at best, so don't loose any sleep or hearing over it. Something to take into consideration that amplifiers usually output more the lower impedence you go. I know its out of topic but I just always wonder. Tell stories.
Thank you for your support! Be careful if you try to combine a 4-ohm speaker and 8-ohm speaker to the same amplifier because you could … - Kurt Vonnegut, Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums, Topic: 4 ohms or 8 ohms  (Read 24663 times), Quote from: Ken McDonald on September 23, 2011, 04:51:35 pm, Quote from: David Parker on September 23, 2011, 06:05:52 pm, Quote from: Ken McDonald on September 23, 2011, 06:21:48 pm, Quote from: Randall Hyde on September 24, 2011, 01:09:25 am, Quote from: Ken McDonald on September 24, 2011, 05:32:08 am, Quote from: Randall Hyde on September 24, 2011, 07:47:30 am, http://www.gear4music.com/PA-DJ-and-Lighting/Behringer-PMP4000-Europower-Mixer/DE2, Quote from: Ken McDonald on September 24, 2011, 08:35:20 am. JavaScript is disabled. "Let our rigorous testing and reviews be your guidelines to A/V equipment – not marketing slogans", Get our latest product reviews and AV stories emailed to you weekly. Most amps that I see are only able to push 8 ohms speakers continiously so the reason I ask. A lot of amplifiers aren't designed to work with 4-ohm speakers. However, if your equipment isn't stable down to 4 Ohms, you could burn out the amp or cause undue distortion. However the amp has to provide more current to the four ohm load so the output transistors have to be more robust. For Sale: Bass Guitar Strings and Accessories, The TB Bazaar: Gear For Sale from our Sponsors, For Sale: Double Bass Amps, Strings & Accessories, Wanted: Bass Guitars, Amps, and Accessories, Wanted: Double Basses, Amps & Accessories, http://www.roger-russell.com/wire/wire.htm#resistancehigh, (You must log in or sign up to reply here.). However, amplifiers can typically play cleaner at larger loads, despite outputting less power. But even so they wouldn't design 8 ohm speakers just so you can run a 4 ohm rated amp that it doesn't have to work hard. A 96db rated, 8 ohm speaker driven with 1 watt is as loud as a 93db rated 4 ohm driven with 2 watts, or 90db rated 2 ohm speaker driven by 4 watts.

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