choosing the right amplifier
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How to Choose the Right Amplifiers for Speakers

How to Choose the Right Amplifiers for Speakers

Finding compatible amplifiers and speakers is a common problem for many as they buy new equipment. Speakers and amps go together like peas and carrots. It’s all about the synergy – matching a great speaker with a high-quality amp. Unfortunately, the matching process isn’t as simple as it sounds, and getting it wrong can mean poor sound quality till better changes are brought.

Plus, if you simply way to get a separate amplifier with speakers instead of an entire home theater system, it can be hard to understand what you should really be looking for.

No need to worry! We have put together this super thorough guide to help you find the perfect amplifiers for your speakers to achieve that amazing sound output.


Is It Mandatory to Match Amplifiers and Speakers?

speaker amplifier

This needs to be said. You don’t need to lose sleep over not being able to match amplifiers to your speakers. But then again, it can’t be disregarded entirely. You need to give it a bit of thought, and you should be able to make a good purchase, given you have enough information first.

It’s unlikely that you’ll find a pair of speakers and an amplifier especially made for home use that doesn’t match at all. That is, to the extent they might be damaged after being connected and having to play something at a reasonable volume level.

Here’s the question: Do you want to brush up your knowledge on this equipment to get a better match? Obviously, you will get the best out of your setup.

There’s no fixed mantra to match your speakers and amplifiers, and there’s adequate room for error. You shouldn’t face too many complications unless you try connecting entirely incompatible equipment.


Things to Consider When Buying Amplifiers for Speakers

1. Input Sensitivity

Input Sensitivity

This one is only applicable to speakers. Sensitivity determines how loud a speaker will be (in dB) when bring run by 1 watt of power and 1 meter away. For instance, speakers with 92dB sensitivity would produce 92dB of sound pressure for a meter away.

So, why is sensitivity to a core issue? For starters, it’s directly connected to how loud your speakers can become. When power applier and distance from the speaker are the same, one with lower sensitivity will have quieter sound output than one with higher sensitivity. This doesn’t necessarily mean high sensitivity is the best; it simply implies that higher sensitivity speakers can get louder, and you could save some coins that you would generally spend on a stronger amplifier.

Thinking why amplifiers provide much more than a watt of power if that’s more than enough to get to 92dB from a meter away? That’s because the power output of an amplifier needs to be doubled to increase a speaker’s sound pressure level three notches, 3dB.

If you get farther away from your speakers, the volume dips very fast. Expect to experience a 6dB reduction each time the distance between you and your speakers is doubled.

It’s important that the speakers feature enough sensitivity so the amplifier can efficiently drive them.


2. Frequency Response

Amplifiers Frequency Response

The range of musical tones or frequencies a component can produce is termed as the frequency response. According to general HiFi standards, a decent audio system takes input signals and output them without any sort of distortion. This includes components like source audio files, digital processing like a DAC, and speakers and amplifiers. Although frequency response is a single side of the equation, it has a noteworthy influence on how the sound will be resonated.

It’s only about too much treble, bass, or mid coming from a system. Frequency response can also more mildly impact the balance and tone of the instruments within a melody, capable of coloring as well as ruining your listening. An ideal, completely flat response isn’t possible with all components. Regardless, today’s developed technology can surely bring it closer to the real deal – we humans wouldn’t even be able to tell.

If you wish to listen to music in the purest form it comes in, it’s highly recommended that you look into the frequency response. This can be a helpful tool if you want to EQ around the lesser quality hardware as well.

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3. Impedance

Amplifiers Impedance

Speakers will have impedance, or resistance that will be mentioned under its specifications – range between four to eight ohms. Now that the impedance of the speakers is known, cross-check if your amplifier or AV receiver supports this. The manual of the amplifier should give you the answer.

Generally, the majority of the amplifiers available in the market support most of the speakers, but it never hurts to be sure.

The issue is with speakers offering low impedance, like four ohms. This can apply excessive stress to the amplifier’s power supply if it’s not equipped to handle lower impedance. A common scenario is an AV receiver only capable of supporting speakers ranging between six to eight ohms.


4. Power Ratings

Amplifiers ​Power Ratings

Many speaker specifications suggest an ideal power rating. This means the amplifier’s power output that the speaker is connected to. Obviously, it’s best to get the match the rated power.

But the main idea is to ensure the ratings are comparable. That is, both should either be peak figures or RMS (average) values. However, your speakers won’t be too damaged if the amplifier is a tad bit too overpowered or underpowered. Generally, it’s best to get an amplifier offering bit more power than the ratings your speakers provide. Remember, an underpowered amplifier is much more harmful than an overpowered one.

If the amplifier isn’t packing enough power for your required volume, you will simply turn the volume knob sharp right up.

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At the end of the day, you shouldn’t be too worked out over the amplifier, but you shouldn’t disregard it either. It’s necessary for a fuller, more immersive experience. Follow the above guidelines to pick one that’s just right for you.

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