Music Gear News

At Gear4music.com we update our news channel daily to ensure you always get the latest and most important music news.

PA Speaker Terms Explained

Which speaker should i buy?
PA Speaker Terms Explained

Active or Passive?

Active (or powered) Speakers have a power amplifier built into them, making them versatile as most have direct inputs for microphones and line inputs for other music sources such as MP3 and CD players.

Passive Speakers require the use of an external power amplifier for operation. When selecting an amplifier for your system, it must match the Power rating (Watts) and Impedance (measured in Ohms) of the speakers you are using. Passive speakers connect to the amplifier with a heavier grade speaker cable.

Power Rating

Your Loudspeakers is likely to overheat and fail if too much power is put through it. Wattage measures how much power your speaker can handle and is most typically denoted as Watts RMS. This is essential to take note of when choosing a loudspeaker as it ensures the speaker will perform to optimum volume without distortion or risk of being damaged. Other terms relating to power include Peak Power which takes into account the amount of power a speaker can handle for very brief amount of time (we're talking milliseconds), and

PMPO (Peak Music Power Output)- both these values are not very useful when matching speakers with amplifiers or comparing volume of one system to another.

Impedance

Loudspeaker impedance, represented in Ohms, measures what the current flow from the power amp is working against. Knowing the correct impedance is essential in conjunction with power to prevent damage and ensure the speaker is performing correctly.

Sound Pressure Level

Sound pressure level, or SPL, is measured in decibels (dB). Often a maximum SPL level is given to indicate the loudest volume an audio system can provide. Although this measurement is subjective and depends on the same audio passing through each speaker for an accurate comparison, it is still useful when comparing the volume of different speaker systems.

Frequency Response

The frequency response tells you how well the speaker can respond across the audible frequency range. Usually, this is represented as the upper and lower limits- from the lowest frequency the speaker will reproduce to the highest frequency. The lower frequencies are represented in 'Hz' and the higher frequencies represented by 'kHz'. An example of a frequency response would be: '30 Hz to 20kHz'.

by Alice Thomson

Posted on 24 Jun 2013 11:47 to category : Tips and advice

Related Music News

thumbnail

Don't leave it to trial and error. With a bit of research, you can find your perfect pair of drumsticks.

27 Jun 2019 10:57
thumbnail

Gear4music social media competitions | terms and conditions of entry

7 Nov 2018 10:12
thumbnail

Update available to improve performance and fix bugs.

15 May 2015 07:00
thumbnail

Shure recently discussed how guitarists can achieve great results when recording at home or in a small project studio. We took a look and picked out our favourite points.

25 Jun 2014 14:15
thumbnail

Some people could find the prospect of recording an electric guitar quite daunting, but musicians and engineers in fact have many options open to them.

3 Sep 2009 16:01
thumbnail

Musicians who record at home to produce demos or professional quality recordings can build up a vast array of equipment to come up with their ideal sound. However, it is not just the instruments themselves that can determine how a recording turns out, as the engineering and production can potentially make or break a track.

26 Jun 2009 17:18

Recent Music News

thumbnail

Summer NAMM 2019 is one of the music industry's biggest annual tradeshows. Every year promises a raft of exciting new products, so read on to find out about the new guitars of 2019.

18 Jul 2019 13:52
thumbnail

Ableton has just announced CV Tools. Users can now control their modular or CV-based gear with a compatible dc-coupled audio interface. Bring your analog and digital gear together like never before.

16 Jul 2019 16:13
thumbnail

Summer Concert Season brings the charisma of classical music to life! If you're feeling inspired, check out our top choices for the beginner classical instruments you can start learning today.

16 Jul 2019 10:01
thumbnail

Win a Marshall sweater, bag, and wallet, worth nearly 150 GBP! Enter before 29th July for your chance to win.

15 Jul 2019 16:31
thumbnail

Gear4music was recently given the honour and privilege of visiting the Istanbul Agop headquarters! We sent one lucky member of the team to see the creation process of these traditional Turkish cymbals first-hand. Read more and see what we learned!

15 Jul 2019 16:01
thumbnail

How do you practise? How do you get into professional playing? How did a violin accident kick-start Tom's drumming career? Find out all this and more...

12 Jul 2019 12:32