If they list 2.83 volts instead of 1 watt, look at the impedance rating (see below). A 1w/1m rating for an 8-ohm speaker is not equivalent to a 1w/1m rating for a 4-ohm speaker. That’s an amazing difference that will mean a lot when you’re trying to fill a larger room or playback music at much louder volumes.Įditor’s Note: Manufacturers will often play with the sensitivity to make their speakers seem more efficient. If one speaker has a rating of 84 dB SPL 1W/m and another has a sensitivity of 94 dB SPL 1W/m then it will take twice the amplifier power to bring the first speaker to the same volume as the second. To give you an idea of how much this matters, consider that the way we perceive something as being “twice as loud” means that it has increased by 10 dB SPL. In a sense, you could call this how “loud” the speaker is, but that’s not entirely true since a less efficient speaker might be able to take more power before distorting. This is a great number because it tells you how “efficiently” the speaker uses amplifier power. This is a rating that tells you what the output of a speaker is when fed a 1kHz signal (sine wave) at exactly 1 Watt (2.83V at 8 ohms) and measured on-axis from 1 meter away. When you see a sensitivity rating, it is always written as a factor of SPL output from a particular distance. Then, look to some other specifications that mean more to a speaker’s ability to output audio in your room (such as sensitivity). This spec is all but useless unless you’re trying to power a set of cubed speakers with separates, or attempting to run a pair of flagship towers with a $249 entry-level AV receiver. Rather than focus on this, concentrate on matching an amplifier or AV receiver to a speaker that is in the same ballpark in terms of price. This is the maximum nominal (consistent) amount of wattage the speakers can handle from an amplifier. In no particular order, here are some of the more common speaker specs you’ll want to understand when you’re shopping: Power Handling Still, the specifications game is one way you can at least whittle down your list to something more manageable-giving you a starting point and a shorter group of products from which to decide. We always recommend auditioning a loudspeaker whenever possible, but we also review them so that we can give you a leg up on what products perform better than others. Add to that the fact that manufacturers want to tout features and specs that may not be as important as others, and you’ve got quite the specifications minefield to navigate. There are a lot of specifications when it comes to loudspeakers, and understanding speaker specs can be a real pain if you’re sifting through data you don’t fully grasp.
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