![]() A typical spec sheet might read something like "50 watts Continuous Power into 8 ohms," meaning the amp will output 50 watts into an 8-ohm speaker. For simplicity's sake, we're going to talk about Continuous Power and Dynamic Power in this guide.Ĭontinuous Power is where the magic's at, and this is the spec that tells us how powerful an amplifier is. Amp spec sheets often reference Continuous Power (sometimes known as Continuous Power Output or Continuous RMS Power) and Dynamic Power (sometimes called Peak Power). Watts are more about how much power a speaker can handle and how much power an amp is putting out. One common belief we'd like to put to rest right away is that more watts (what you use to measure power) equal more volume. To take some math work and guessing out of the equation, a lot of speaker and amp manufacturers are switching over to using "compatible with" ohm ratings, which makes things a lot easier. Generally speaking, it's fine to connect higher impedance speakers to an amp what you don't want to do is plug low impedance speakers, let's say 4 ohms, into an amp that specifies a minimum 8-ohm limit. ![]() For example, NAD’s ridiculously popular D3045 stereo integrated amplifier outputs a continuous 60 watts per channel into 8 ohms and 4 ohms, but its Dynamic Power (sometimes called Peak Power, which refers to when it's being pushed to its max) hits 80 watts into 8 ohms and 150 watts into 4 ohms. (We'll go into wattage in more detail below-for now, all you need to know is that it's a measure of power). Check your specs, but when that's the case, connecting a speaker rated between 4 and 16 ohms will be OK.īut-and this is where it gets more interesting-you need to be aware that many amps output different wattages into different ohms. Amplifiers generally operate effectively in a specified range: say, 4 to 16 ohms. ![]() Speakers typically carry ratings between 4 and 8 ohms. This is part of the equation in determining the synergy between your speakers and amp. It's measured in ohms and is often represented with the symbol "Ω"-as in 8Ω. Used in both amp and speaker spec sheets, impedance is a measure of the electrical resistance of your components. Impedance starts with I, just like important. These are the key terms used in speaker and amp specs that are critical to your search for good synergy and great sound.įirst up: Impedance. You don't need to be Einstein to get this right, but before buying a thing, you do need a vocabulary lesson. How To Get The Best Match For Your Speakers or Amplifier.This is our full guide to matching speakers and amps, and it's got everything you need to know. Not that this is always simple to achieve - it's a little more complicated than making a sandwich! If putting them together is giving you a headache, we can help. When you're matching a good speaker with a good amp, it's all about synergy. And, for under $25.Speakers and amps should go together like peanut butter and jelly. But if you have unit that hums even with no input, you''d have to suspect there''s a problem with it. Having everything off the same power outlet source and short cable runs also helps. Fortunately, I don''t have any of the hum problems (yet) that others have mentioned, though I would have if I hadn''t put a DC-Block on the Broadband Cable that is tied to the system. As I use the auto-on feature, the BSC doesn''t power until some time later, silently. There is a pop when I turn off my system, but that''s from the source. Since I''m using it with a fairly small set of speakers, power won''t be a problem, either. And, I don''t have to spend 20 or 30 seconds looking at the manual. As its used, I probably don''t have to worry about it dying a month or two after its out of the box. But, I thought $21 (Taxachusetts) was worth a shot, and, if it was broke, it would be a donation to a good cause. When I happened on this at Goodwell, the price sticker was missing, and I didn''t know if was operable or not.
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