How To Set Up An Amplifier [Bridge vs Parallel vs Stereo]

[@jeffsaxton716]

I just got one of these and am still evaluating it. I paired it with a set of 40 year old Realistic (Radio Shack) speakers. This is the first time these boat anchor speaks have spoken for 25 years. Sounds great! The only downer is that I'm getting some 60 Hz hum which isn't noticable when playing music. This is with nothing hardwired to it but speakers.

[@SirPablo2Pablo]

Excellent. I’m running a pair of sub woofers off a mono cross over and understand now that I should run it to the amp in parallel mode. Thank you

[@JoeJ-8282]

Isn't there some amps out there that actually connect both amp channels together pretty much completely, side by side, in parallel mono mode, effectively creating a SINGLE channel amp, but one that can supply TWICE the current at the same voltage, therefore ALSO doubling the wattage output capacity into the same impedance loads as in stereo mode? (Just only doing it then as a more powerful "monoblock" amp instead) (It seems like I've seen amps that do it that way instead of the way you described for this amp in this video... But maybe I'm just remembering it wrong?)(Have you ever seen an amp that does parallel mono mode in that way that I described above?)

[@eazyrider6122]

Hands down one of the best ausio channels on KZbin. Great conten, Explaines clearly, Cheers

[@JoseMancini0959]

Hello, nice channel you have. For the Bridge mode there is a very important difference that was not mentioned. In parallel mono the same source is used to feed both amplifiers, for bridge mode there is a phase inverter that needs to be inserted between the source and the amps in order to split the signal in two with a 180 degrees phase shift between each other. Without this phase inverter, if you connect a speaker between the two positives of each channel the result will be the cancellation of the resultant signal and the outcome won't be the desired one but interesting to hear. I watched the video a couple of times before adding this comment and could not identify this detail in the explanation. The power amplifiers (some of them) have a control switch to move into bridge mode, so is an easy change for the end user but thought that know how bridge mode works at the input would be important too. Thanks for the tutorials and keep going. Regards.

[@mgtow-balance3409]

back in the day i remember you had to open up the amps to put them into bridge mode. of course nowadays it's just a switch. but yeah, i liked the tech explanation of how bridge actually works. just learned something new, thanks

[@krellft]

He does explain all of that, plus the phase difference, in the video ... see 3 minutes in ... the waveforms (both positives) are shown out of phase ...

[@AT-wl9yq]

All that means is to bridge a stereo amp, the input has to be balanced in order to make it work. If you send the amp a single ended signal, it can do the conversion inside the amp. Its essentially a DI box, only they put it inside the amp.

[@JoeJ-8282]

Some amps, including the one I had that bridged into mono mode, only said that you had to feed an input into ONE of the channels jin order to utilize the bridge mode, NOT an opposite inverted signal into both channel inputs at once... So maybe some amps will do this inversion that you speak of internally and automatically whenever you place it into bridge mode, and you only use ONE of the channels as a mono input signal.

[@slyspy9819]

I love these amps that are very convenient for your talk . How about using an amp that most of us have like a vintage receiver or integrated amp ?

[@JoeJ-8282]

Those exact types of amps are usually NOT bridgeable at all, they're usually just ONLY stereo.

[@timchambers5242]

TIPS: 1) Check amp mode, connections, leads & speakers before connecting cables & powering on. 2) Switching in & out of bridge mode should be done with no speakers connected or the power off (if possible). Check connections, minimum input level/gain, turn on, then increase the input level/gain/volume slowly (eg. take about 10 seconds unless you hear a problem). You don't want to be fiddling with dip switches & wiring while the amp is ON. 3) If you make adapter leads, add labels to indicate purpose & how each end is wired (which end for amp, which end for speaker when not wired straight through). Use different color tape than your usual leads so you can quickly tell the difference eg. blue for normal, red for bridged.

[@AudioUniversity]

Thanks for sharing these tips!

[@grandrapids57]

I had not understood those terms and application until this- thank you!

[@AudioUniversity]

Glad to help! Thanks, Grand Rapids57!

[@kennethvillarosaarceo]

Wow I like this guide parallel mono left and parallel mono right

[@ipyanadavid118]

Hey kyle i really respect to your teaching

[@synapsexcracked501]

seriously bro believe me u r the best ❤️ ur channel has everything what i was looking for

[@AudioUniversity]

I’m glad to hear that, Sagar! Thanks!

[@synapsexcracked501]

@@AudioUniversity there is a topic which is very confusing for me and might be for many the dBu and dbV ? Can u help us out 🙃

[@JaykeSapalaran-iq3qs]

Great video information ❤, can you make a video tutorial for PA system and multiple speaker connection with volume control

[@mariodquiroz]

I enojoy a lot your channel, weel explained and objective. Right to the point!

[@leestephen26yahoocom]

This is all good info, but where is the 12 volt trigger input so I can connect my JBL synthesis receiver to this amp? I don't see one in the description or in the manual.

[@isaacjakie5538]

Should you connect speakers on both the speakon and binding posts.

[@bogdansparovec502]

Hello And thank you for the straight forward videos. My Q goes, is it possible to connect two integrated amplifiers in mono mode, to act a stereo. To eliminate the long cable configuration and if this is true to improve sound in the speakers?

[@Theweeze100]

Awesome Channel!!! Thank you!

[@alexdebelen362]

Can I port two 8-ohm speakers separately on Channel A and B and use Parallel mode? Is that safe for speakers? (I'm sorry I'm just a beginner)

[@jr.rasentertainment4074]

Thank you for sharing your experiences. Learning so much already. Watching all the way from Vanuatu 😀😁👍🔥🔥🇻🇺🇻🇺🇻🇺

[@AudioUniversity]

Thanks for watching!

[@raffaelec159]

finally I find the right answer of the bridge mode after I looking a thousand video ;

[@jorgemilian3308]

Thanks for the videos and time for sharing your knowledge, i have a question i have 4 sp3 peavey speakers, have a 800 mackie powered console and a yamahap5000s, i want it for preaching ,can the yamaha runs 2 sp3 and the mackie runs 2 sp3 speakers just need some guidance on that ,thanks you so much ,will wait for your advice

[@glengatt3941]

I wish I knew these things before buying,I been told that I can't use 2 emotiva basx A2s to bridged them for one pair of speakers,the told me to bi amp them but that's not the same I won't get dubble power with bi amp but it's the only way I can maybe use them

[@glengatt3941]

You seem to know a lot about amplifiers,and there is no way of bringing these basx A2s in stereo or some other way?

[@archiemacdonald553]

love your videos 📹 very informative .I've got 2 power amps which I've never used in bridged mode .always a bit nervous about bridging them I use them in biamping mode with works for me many thanks for the this informative information 👍

[@nikakublashvili1817]

Kyle thank you for your amazing videos I want to ask one question because i could not find enough information about it is only audio interface (for example solid state logic 2 ) enough for get normal sound for speakers? i know that audio interfaces have pre amps build in inside i also know that pre amps do not have enough current to drive some speakers do have to buy power amp separately? i hope i am not asking too much questions

[@AudioUniversity]

I think this video will help you: kzbin.info/www/bejne/oqWwgX5unLNmjpIsi=CLR8Z6v_Kce6iMNp An audio interface is not able to power a passive speaker. You’ll need a power amplifier.

[@nikakublashvili1817]

thank you it really help me out but i just cannot find any video how to hook up audio interface with power amp @@AudioUniversity

[@AudioUniversity]

In the video link, I show a mixer connected to an amp and speakers. You’ll connect an audio interface the same way.

[@prospersrofenyoh1787]

Thanks very much for this

[@Carperama]

Thanks for the video. I have Onkyo TX-SR494 AV Receiver and need amp to power two Acoustic Audio HDS10 in Wall 10" subs. Can you recommend a sub amp to match the AV R around 80 watts at 8 ohms each channel? Thanks.

[@electronicshelpcare]

Thanks to Teach us

[@ingnadelinmaxonaugustin7968]

Thankyou so much for your best school on youtube. My question is how can i use 2 amplifier to one ? That mean if i have two 2500w amplifier and i have 4 amplifier that have 5000w in total. I want to use only one speakon cable to wire from two amplifier to these speakers 🔊 Thanks by advance

[@JSmoov.]

u may sum both amps to send signal only via 1 NL4 cable. HOWEVER i dont recommend outputting both lines into the same speaker. but for the sake of cleanliness and ez connection, yes ..

[@mawortman72]

I have a crown 1000 CE I am only getting one channel Stereo… Also, is it better to set a switch to 1.4 V or 24DB for best sound? Can't figure it out.

[@ibrahimissaissa6627]

Thanks for your efforts

[@AudioUniversity]

Thanks for watching!

[@utkalnetwork6060]

Please sir upload your video quickly I'm always waiting for you

[@arieldepio7286]

In bridge mono, 2 positive terminal of the amp is connected to positive and negative terminal of the speaker. Importnt thing i think is knowing which amp is inverted and non inverted output signal. One of the two positive terminal has inverted signal, that must be connected to negative terminal of the speaker. Pls correct me if im wrong. Bit confused. Thanks

[@patony_1288]

Good point , I also see all these videos on how to connect only (1) speaker on the two (+) 1&2 channel but if you have a pair of speakers how do you connect number two speakers?

[@brvltrast4122]

Thank you dear brother

[@johnlewis5774]

If i have a 2 channel crown but only want to use a single channel does it matter which channel I use and what should the amp be set at at. Parallel? I'm not bridging. Just wanting to run 1 channel. Ty for any assistance

[@AudioUniversity]

Yea. You can set the amp to stereo or parallel and use only one channel.

[@gabrielaribeiro6047]

May you answer the Big Question I never got explanation? How to use stereo amplifier with stereo amplifier with 4 Tower Speakers? All my 8 Receivers are connected to 8 ohms Tower Speakers. Unfortunately all stereo amplifiers only connect 2 Tower Speakers, and I only want more volume power for my Receivers using all my command of Bass, Treble, Loudness, one cd player and one dvd player and, again, 4 speakers. I'm 66 years old, and want simple things. Only using an amplifier to increase volume sound to my receivers, but all the things I've on my receivers. May you help me, answering the things above?

[@PSDMithsuka]

Thank you sir

[@leandrusi4533]

So what happens when we PAN on bridge or parallel mode??

[@bradrybuck544]

New to PA systems Can't get stage bins to work on both sides Ep 4000 amp What dip switch settings should l engage for simple band stage Speakon cables 2 pole to trs 1/4 at bins

[@drsinghtastic]

Thanks Kyle!

[@DocNo27]

Nice explanation!

[@AudioUniversity]

Thanks!

[@viperdopeman2294]

What's up bro listen I have a important question, You see I have 2 woofers 3600 watts each, and one B-52 6000 power Amp.. Should I bridge mode bc I have it on stereo mode and lately my Channel 2 has yellow blink on it what should I do❓️ thnx 🤙

[@jesseparadis6141]

I was reading in asked questions on a Sony deck that u can bridge it to run 2 speakers louder is this true ?

[@kutro41]

can i install a 2 speaker1800 watt subwoofer box to a 1000 watt amp by bridging it? will i get 1000 watts per subwoofer

[@martzb]

Hi, I have a Crown XLi 800 and x2 jbl control 50s/t 8" subwoofers. I am unsure what level I should set the impedance tap selectors. Ohms vs Vaults

[@mikga45]

My amp is 4 to 16 ohm rated. It says it is rated to 1000 watts per channel at 8 ohms. I have a 12" instrumental woofer that is rated for 8 ohms at 900 watts. It has only that one speaker on the channel. How do i wite it for 4 ohms so i can get the power to run the 900 watt roofer. If i run it in series i will loose half the 900 watts thats why i want to run it in 4 ohms

[@hobomobile1646]

Question: I want to run two speakers in parallel (8 ohms each) to a bridged mono amp. Specifically, two QSC E115s powered by a bridged mono RMX 2450. The amp is rated for 2400 w in bridged mono @ 4ohms, so I assume by running 2 of them in parallel into bridged mono, I'll get the full 2400, split equally between each speaker (1200 w per speaker). This compares to running one speaker per side in stereo, which only gets me 450w each (at 8 ohms each). Am I right, or what am I missing? Thanks

[@jakelake7359]

Does running one channel on stereo mode increase the wattage of the amp My amp runs 1600w/8ohms, can this be increased by only using one channel in stereo?

[@AudioUniversity]

The manufacturer will usually state the watts per channel in the specifications. In my experience, this is usually independent of how many channels you’re using.

[@sk060]

I have a question , MY AMP uses 1+ and 2- for a bridge mode and the speaker uses only 1+ and 1- I'm kind of confused how can i connect them together , thank you.

[@Stefbrowner]

Hi. I have a silly question. Crest 4801 transistor power amp. If I choose stereo mode, as I wish to keep low wattage. I will only use channel A. And leave channel B with no signal and no usage. Is it safe ? Is stereo it safer than parallel mode, in this particular instance ?

[@AudioUniversity]

If nothing is connected to the output terminals of Channel B, I don’t think it makes a difference.

[@Stefbrowner]

@@AudioUniversity thanks. Seems to correspond to majority of responses I found.

[@thaison773]

Hello Kyle Your video is awesome My question is how to I run 2 main speakers and 1 subwoofer with speakon connectors in Bridge mono mode? I have a powered mixer Behringer PMP4000 My speakers are EV TX1152 And my sub is EV TX1181

[@TerenceKearns]

Great stuff

[@pacman-qt1ix]

How many 15s can I put on this amp

[@violadrums]

I have an old carvin two channel power amp. I m not sure if channel one is working or not . I m a novice to setting up a PA I' m the drummer in the band but I own the PA . I see the buttons in the back parallel bridge etc. I try to run one channel to one speaker and the other channel to the other speaker. But channel one comes out faint . Any advice? Thanks In advance .

[@AudioUniversity]

To run each channel to a separate speaker, you’ll want to choose either stereo or parallel. Stereo if you want different signal to each channel, parallel if you want the same signal to each channel.

[@violadrums]

@@AudioUniversity Since it is an old amp in the back there are four buttons parallel/ input , ground/ lift, limiter and a buried says bridge .

[@kotun9999]

Thank you so much

[@AudioUniversity]

Glad to help!

[@gamefreak249]

Great video! My buddies and I are building a hi-fi system for heavy bass music. We recently purchased two Eminence NSW6021-6 subs. Any suggested amps for these beasts? We're having a hard time. Thanks!!

[@johnhandcock7744]

I'm an idiot basically 🙃 because I have a love of music, but don't play an instrument, ( unless air guitar or air drums count...) and I collect old stereo equipment, ie, record players (& of course records) reverberaters reel 2 reels, and amps*... they aren't stand alone amps though. I'm still learning. They all have at least a tuner in them, some a cassette deck as well. My pride and joy and inspiration for my obsession is a Sansui 9090db. I had NO IDEA the love and admiration this unit has. But all the people who I pestered about the awesomeness of this receiver can attest, and the braggadocious audiophiles the world over will agree, this is the amps you want. Maybe not the amps you need, but you'll forget all that nonsense. It has 125watts x channel, 3 separate speaker channels and I believe the finest built in tuner ever made . Anyways, I'm still learning the technicalities of electronics and especially when it comes to amplifier and speakers. If that amp isn't a good fit for the speakers you have, I bet you buy speakers that match the Sansui 9090db.........

[@gamefreak249]

@@johnhandcock7744 Hey! That definitely sounds like an incredible receiver! Thanks for the input. Unfortunately, the drivers I mentioned in my original comment are 21" subwoofers, so 125W is a little underpowered lol. These drivers run at 2500W each AES rating hahaha. These would be for small scale events. Since I've posted this comment 4 months ago I've definitely found some solutions though! There are amps out there that will power them properly, they're just a tad expensive. I recently bought a 4 channel amp that can do 2000W per channel at 8ohms, so I think I'm good to go!

[@patony_1288]

Hello I am still confused.. If you put the Amplifier in Bridge mono , You can connect one speaker wires on channel (1) + and channel (2) +.....But where do you connect the other speaker? ....I have two speakers ti be connected .

[@user0000user]

You don't. Bridge mode is designed to power one speaker with double the power (e.g. a Subwoofer). Your amp works as if it only has one channel.

[@jvh8806]

@@user0000user This is a confusing issue because in the documentation for the QSC GX5, in bridged mode it shows 2 speakers connected !

[@Jeremy_810]

Back in my broke teenager basshead days of the 90's, guys couldn't understand how my Pioneer pullout, paper dual cone 6x9's, cheap sub and flea market amp outperformed their far more expensive, professionally installed systems. I wasn't going to tell them it was because they had it wired in stereo. Even when I had 2 subs and a single amp, I'd still get more db's bridging mono and just running jumpers from that speaker terminal to the other speaker. Not proper, I know, but I couldn't afford 2 amps.

[@dre_rocstar3k386]

Hey Kyle, is Qsc your preferred amplifiers?

[@AudioUniversity]

Not always. I think they make good amplifiers though. They also provide easy-to-find, easy-to-read specs.

[@dre_rocstar3k386]

@@AudioUniversity okay I get you, what are your thoughts on the CVR and powersoft amps?

[@AudioUniversity]

I don’t have much experience using those brands.

[@shivkumarnadar4893]

Superb funtastic excellent

[@AT-wl9yq]

You should only bridge an amp if you have to. It beats the crap out of it. A 4 ohm load is now a 2 ohm load. You make the amp work twice as hard to drive the same speaker. The harder the amp has to work changes how it sounds. If at all possible, buy an amp that has enough power to begin with. Its a much better solution. If you have 2 stereo amps that are exactly the same, you may want to consider doing a vertical biamp instead. You'll get more power, but it won't be as much as bridging. However, there are no downsides. The amp won't see the speakers at half the resistance. It will stay the same and not force the amp to work so hard.

[@patricewilburgh7713]

Good night

[@k90rbitrescue]

you couldn't have picked an easier amplifier. to demonstrate. what happens internally when you flip the switches not all amps are not cut and and dry great videos not knocking it. diving deeper when you flip the Amp into mono mode in side the Amp it is reversing the polarity of one input then the output put is wired negative on ch1 is to positive on ch2 the speaker is then connected to the negative speaker terminal ch2 negative positive speaker terminal is connected to the out put positive on ch1 that's what the switches do is reconfigure ch1 only delivers + & ch2 only delivers - to the speaker

[@UTSobarnawijaya]

🙂

[@lawrencebishton9071]

I'm stuck in the middle with you tube stereo Channel crown crest amp on a cross over with a war,rior amp 1 down or up in rack a nu mark mixer with Ann economic o mic r on is the econemy of my eco mic amp better 👀 louder with eco or with out ? Eco or no eco the mic I'm saying not the car bonnet foot print and the lessee said why u saying that down the make ? This text is clearly states ? Not how I.T sounds when I speak let's do i.T a gain

[@lawrencebishton9071]

Let's can't get my my mort a gage 🤣

[@lawrencebishton9071]

My crown amp blows them to BITs 🤣

[@resulehmedov4033]

💙❤💚👍👍👍

[@captwilkie3239]

im dealing with a rock ape drummer & lead guitaist that is too loud i need to explain as Put this plug in here not here

[@lawrencebishton9071]

Or twotan car moon 🤣

[@captwilkie3239]

nope as clear as mud :-)

[@lawrencebishton9071]

You mortgaged or engaged I say what ? Who's Mort is that ? What you gaging the Mort with ? Not a smart meter they reckon their Ann expensive way of paying for Ann electric bill least with eon cost a billion who ? What? Where ? When ? How ? The sign clearly states ? "Is chavie best put it on plane then where it belongs " con air chavie 🤣🤣🤣

[@zachansen8293]

are you sure about your definition of mono parallel? en.wikipedia.org/wiki/Bridged_and_paralleled_amplifiers disagrees and so does everyone I've talked to about this. I believe the correct definition is that you hook one positive of one speaker up to both positives and speaker negative to both negatives on a stereo amp. This gets you double the available current to the speaker. The common way to do this is with a little scrap of speaker wire running between both +'s and another between both -'s and then wire the speaker to one binding post just like normal. You feed the same input to both sides of the stereo inputs.