You're most welcome, and thank you for watching :)

That's great Paul, very glad the video was helpful!

You're welcome Nathaniel. Hope your system sounds good!

You're most welcome!

You're welcome!

You're welcome, thanks for watching!

You're welcome, glad the video was helpful.

You're most welcome, thanks for watching!

+Binny NT You're welcome, thanks for watching!

You're welcome Adi.

That's great Rich, all the best with your music!

@@GLBProductions Your welcome sir ,please sir i have one more question to ask, can i use 2400watt skytec amplifier with 4ohm and connect with speakers with 8ohm is it possible or does it has disadvantage ????

+Jim E Thanks Jim, always appreciate your support!

You're welcome, thanks for watching and commenting :)

You are most welcome.

Thanks my friend, glad the video was helpful. May your speakers have a long and productive life 😄

Sadly, they won't be saved, but if you follow it, this is the best info I have seen so far. CONSTANTLY monitor your levels!!! I have been in the industry for over 40 years..... the horror stories I could tell you..... P.S. dj's are the worst!!! 😆

Thanks for watching Ryan!

+Ray Sarael You're most welcome, thanks for watching!

+John Burgett You're welcome, thanks for watching! At the end of the day as long as an amp/speaker combination is loud enough for its intended use and there is no distortion or clipping the exact numbers do not really matter - you could use a 1 watt amplifier and still get decent level out of many modern loudspeakers! The key is having enough headroom to handle the peaks. Feel free to get in touch any time you have questions.

You're welcome Erick!

Also if you stack two bass cabinets you'll get a free 3db extra in efficiency. Low mass drivers and a big volume for the bass cabinets also with low mass long throw drivers and max vas (equivalent volume, low suspension). And offcourse ribbon tweeters for the tops, niceee. And a middriver in the tops for snappy percussion. A 12'' or 15'' driver is not necessarilly 'bad' in mids it's just that percussion doesn't pop out properly. You can talk about ohms and watts all day and it does matter but what you want is large bass cabinets and good sounding hi-eff tops. What you don't want is those high mass car type subwoofer speakers I've tried that. I also don't believe in 'tricks' to get more bass like bassreflex or bandpass they all have their problems the tradeoff is not worth it, sealed all the way.

@@TimpBizkit yeah but designing a bass reflexx cabinet you also have to get a speaker that more stiff and heavy so at the same time it works against efficiency. I guess you might view speakers as 'entertainment devices' so in that sense bass reflexx is not that bad. It all get's a bit 'difficult' or 'subjective' with this kind of thing. There's also the cooling thing so when the fs is around 50hz you might think that's the not efficient part of the spectrum but actually the speaker has to do very little work in that area and get's lots of cooling so.. It all get's quite complicated the mix between entertainment devices and all kind of technical considerations. I guess in general any use of 'tricks' like bass reflex or bandpass makes the system more compact so you have to lug less wood around and store it somewhere. I had an outdoor party lately and the 4 18'' bass cabinets really had trouble filling it with any kind of bass. At some point there was quite a bit of heat coming from the speakers and I had to tune the limiter down. I hope it didn't damage the magnets I guess that's a case of not enough rig for the gig. And that's another factor how hot does it get inside that box I assumed it was 'ambient' but there just might be a problem with heat buildup. One advantage of bassreflex is that it has that ventilation to the outside world.

I don't know if 'lower' is 'less efficient' so to speak there's a bit of a difference between the lower bass (below 40) and the upper bass, the upper base has to be loud 'preferably' whilst the lower base just has to be audible when the lower bass like 30hz is audible that's enough, at least that's my experience the lower bass just has to be 'there' it doesn't matter much how loud it is. So you can crank up 30 hz 10 decibels it doesn't make much difference when it's audible it's audible when it comes to higher bass it's different. So you have to design a speaker to match those requirements.

You're welcome :)

Thanks for watching Darla!

Thanks for your support Rohit!

+koolkiwikat When you say 'gain level' do you mean gain on the mixer? I already have a video on that: kzfaq.info/get/bejne/gcmFmsqYyd6wgIE.html

Yes mistakes in this area can get expensive really quickly ;)

Not that I know of ;)

You're welcome, thanks for watching!

+Chupacabraj You're welcome, thanks for watching.

You're welcome Habibulla.

+Philip Koshi thanks for the feedback, God Bless you too my brother!

You're welcome Dan!

That's great, means you've learned something!

+Nhlanhla Nhleko Thanks for watching! If you would like to support the channel please consider signing up to become a patron at www.patreon.com/glbproductions?ty=h Every little bit helps!

Thanks for watching Mark!

You're welcome Paul, thanks for watching.

That information is usually found on the manufacturer's label on the back of the loudspeaker. Otherwise it will be found in the loudspeaker's spec sheet/user manual.

You're welcome :)

What are the power numbers on this speaker/amp combination?

Glad to hear that! Hope your new speakers sound good :)

Thanks George.

Thanks for watching!

You're welcome, thanks for watching!

You're welcome Milinda :)

Thanks for watching!

Hi there Michael! In your case, there is no way to daisy-chain your loudspeakers by using conventional speaker cables, so you will need to make up some custom speaker cables that are binding post compatible on one end and speakon on the other. This will allow you to connect each amp channel thus: amplifier -> first speaker (using standard speakon cable) and then first speaker -> second speaker using the custom cable.

You're welcome Lu!

You're welcome!

Thanks Barbara.

You're welcome Chhangte :)

You're welcome Josh!

You're welcome Amidou.

+Rodolfo Baliga Thanks for watching!

Thanks for watching!

With a setup like that you need to measure the impedance of the speaker system as a whole through the passive crossover.

You're very welcome Jam!

I learned a lot.

Have a look at this video: kzfaq.info/get/bejne/iLKWa82JrNqqaKs.html

You're most welcome Stephen, drive safe 😄

No I don't Toni, I prefer to do my teaching in person - these videos are just something I do in my spare time :)

+Tom Mci You're welcome, thanks for watching!

I'm afraid I'm not a speaker designer so really cannot tell you for sure if these components will work well together. I strongly suggest working from an existing design that tells you exactly what you need and how to put it together - this is not really a time for improvisation.

Thank you :)

Thanks for watching!

+BACON IZ GUD4ME In general you should use the heaviest gauge speaker cable that will fit in the connector and the shortest cable run practical. For live sound I recommend 14-16 gauge loudspeaker cable.

You're welcome Alex.

Please explain what you mean by 'compatibility and synchronicity issues' thanks.

Unfortunately, it was my first time to come across your info-video, thanks for the reply, the other videos you have on youtube explained most of the questions I have in mind.

It can be connected either way - aux fed allows more control but is more confusing for operators. Watch my video on how to connect an active subwoofer for more info on that: kzfaq.info/get/bejne/a5poer1yq5zKfY0.html If you are purchasing for a church, before you buy ANY equipment I strongly recommend that you consult with somebody who can help you develop a plan for your system and give you advice on choosing gear. In ear monitors in particular are FULL of challenges that you need to be aware of before spending any money.

You're welcome Chris, thanks for watching 😃

Well, I have some friends who are audiophiles and for them the sound of the amp is everything. As a professional sound engineer I want my power amps to sound neutral and not colour the original source. So my answer to your question would be to borrow one of these amps and try it with your speakers. Bear in mind that most new power amps being sold today are D-class, so you might also try one of the older AB or H-class power amps to see how they sound.

+Filip It's important to understand that speakers do not 'drain' power in a proactive way - they are simply a magnet and a coil of wire that respond to whatever voltage is presented to them. You could use a 1 watt amp and still get a lot of sound out of modern speaker cabinets! The reason that we recommend an amplifier that is rated at more than the speaker's RMS rating is because music is not a steady state signal - it has peaks and dips and as such we need to make allowances for this dynamic range.

+GLB Productions Thank you for explanation. Cheers

Filip You're welcome :)

A properly set up active crossover will usually give a better sound because it allows you to remove the bass load from the fullrange amp and speakers.

Great question Elias! The key here is whether you need stereo in your main speakers - if you don't need stereo then by all means use the left amp to power both main speakers and the right amp to power your stage monitors. In live sound, especially for smaller systems, stereo is typically not needed.

+Burn Medina You're welcome, thanks for watching!

At the same time, remember that extra power is always useful to handle transients and give additional headroom to the system. This is necessary as live music is a very dynamic form of program material. Some manufacturers will even specify an amplifier that can provide 3dB of headroom over the speakers' PEAK power rating! Extra power does not have to translate into excessive volume :)

@@GLBProductions Absolutely true. Remember the gain structure of the mixer. The +4dbV is about 1.2Volts RMS or about 1.7V peak to peak. Due to the power supply on the mixers the mixer hard limits are between 10 to 12V peaks or a hard limit of about 12-14db above the +4dbV output. A ceremony running 1 watt RMS can only be driven about 12db higher before the board clips. Therefore peak is doubling the power 4 times. Board at +4dbV has up to 14 db headroom. The amp running 1 watt taking a +14db peak scales as follows up to board clipping. +3db 2 watts, +6db 4 watts, +9db 8 watts, +12db 16 watts, +15db is only 32 watts. Any amp more then 50 Watts/ch RMS will handle anything the sound board can throw at it. If your ceremony is running program at 10 Watts, then yes you want a 600 Watt/ch amp and I'm looking for hearing protection. Church I grew up in had an organ amp of 60 Watts. This was a traditional church with no band, a choir, piano, organ, and sound reinforcement for the preacher and elders. Main amp was 30 watts mono. It is plenty of power for a church wedding ceremony.

That's right - you need to work out the power delivery of your amplifier into the intended total combined speaker load, not just one speaker of the type that you intend to use. In other words you have to plan your entire system as a whole.

You're most welcome :)

Yes this is a very common question - assuming your mixer is connected directly to your speakers and gain structure on your mixer is correct, set the mixer volume such that it is appropriate for your venue. In other words, the amp volume acts as the overall volume control for your sound system.

Thanks for watching! Once you know how to do impedance calculations it's easy to work out how many speakers can be added.

+Chandru Narayanan You're welcome, thanks for watching.

Thanks for watching!

+cee128d Glad the video was helpful. My previous video on connecting loudspeakers to amplifiers discussing this topic in greater detail. When you say multiple speakers from a single amp in mono do you mean bridge mono? And when you say three 8-ohms speaker setup are you referring to a three speaker cluster at the front, all driven by a single amplifier?

+GLB Productions Not using bridge as the second channel of the amp is used for the monitors. And yes, a classic three speaker cluster front and center above the pulpit. The speakers are Peavey SS10 Sanctuary Series and the amp is a Peavey PV 1200 with a Mackie CFX 20 Mk II (USA built I believe). I found that other video this morning and watched it. The only question I have is the way the three speakers would be connected. We split them off from a single cable which means they are in parallel correct? That should equal 2 ohms. Please correct me if I'm wrong. I'm more of a computer guy than a sound reinforcement guy. Your videos have been a great help in that area as I was doing a lot of learning on the fly. Small church in a small town doesn't provide a lot of personal resources to fall back on and my somewhat limited experience in using Kustom PA's back in the '70s kinda put me at the top of the list as the go to guy.

+cee128d Ah one of those, a classic Peavey installation! If they are each 8 ohms and connected in parallel then the total impedance will be 2.67 ohms. Really glad the videos have been helpful, feel free to get in touch any time you have questions :)

+GLB Productions Thanks.