Home 2023 Forums Digital DJ Gear HELP – amplifier and sub

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  • #2200271
    DJ Vintage
    Moderator

    Are you asking because this is what you have and want to use or because this is what you plan on getting?

    Rule of thumb is 5-10W per person indoor (RMS values, not music power or such), double that outdoor. 10W a person will give you very high volumes, 5W will be just high volume 🙂 . Clearly it also depends on the size of the room.

    My advice in this day and age would be to use active speakers and forgo the whole amps, crossover, passive speaker thing.
    A sub is not really necessary for a house party, but a single sub could provide a little more umph to the place. Again, 2 tops (12″ or 15″) with a single sub (15’or 18″) should be plenty for a large house.

    Something to look at are sets that come as two satellites with one sub. LD Systems Dave, HK Audio Nano (600) and Proel LT812A are examples. They pack a big punch and give a sound level that belies their small size. Because of their size you can always find a place to put them even in a living room. They are made to easily transport. The Proel set for example is 800W RMS and will easily serve 80-120 people, while you can still pack it all in the back of a regular car (quite unlike an 18″ sub with tow 15″ tops).

    Final thing. It is sometimes easier/better to get 4 active speakers to spread the sound level more evenly than it is having two speakers up front.

    #2200301
    bob6397
    Participant

    So when you say “Large House Party” how many people do you mean?

    For this, I would (probably depending on size) get a pair of active (the amps are built in) speakers, 12″ in size and not bother with a sub.

    I would consider the following speakers:

    Mackie Thump 12 – Approx £460 for a pair – Low end but decent speakers, will sound pretty good.

    Mackie SRM450’s – Depending on age, anywhere from £500-£800 for a pair. These have been around for ever and we are now on V3 of these. Decent speakers from any age and they are the go-to speakers for many DJs.

    Yamaha DBR12’s – approx £700 a pair – Decent mid range speakers. Fairly new design but good reviews.

    Mackie SRM550 – Approx. £900 a pair. Decent speakers, mid range. Big brother to the SRM450s.

    Yamaha DXR12’s – Approx. £950 a pair. Similar to the SRM550s, Decent speakekers, upper-mid range. Big brother to the DBR12’s.

    QSC K12’s – Approx £1200 a pair. High-range speakers. Well known and used worldwide.

    Yamaha DSR112’s – Approx £1300 a pair. High range speakers.

    JBL PRX612M’s – Approx £1400 a pair. High range speakers.

    Mackie HD1221’s – Approx. £1600 a pair. High range speakers. Older now and therefore quite heavy..

    QSC KW122’s – Approx £1800 a pair. High range speakers. Newer version of the K12’s..

    Pick one from that list – depending on your budget. You get what you pay for though – but don’t spend too much if you aren’t DJing professionally with them enough to earn your money back within 3-6 months..

    bob397

    #2200321
    Hot Since 94
    Participant

    OK thanks guys,

    Im going to shop around the active speaker market.

    #2200331
    Hot Since 94
    Participant

    I already have a 1600W sub (my moms lol).. do i need to have a 1600W speaker to support it?

    #2200421
    bob6397
    Participant

    I would always use at least 2 tops – with 1 sub or 2 if I was using a sub at all.

    In terms of power, is that 1600W peak or RMS? If it is peak, it is meaningless as a number as RMS is the one you can actually compare things with..

    If I had a 1600W (RMS) sub, I would want 2 x 1000W (RMS) tops..

    If I had a 1600W (Peak – roughly 2 x W(RMS)) sub, I would want 2 x 500W (RMS) tops

    BUT power is not actually the main means of comparing speakers – it is actually most useful when matching amps to passive speakers – but actual volume produced (measured in decibels (dB)) is a much more accurate way of matching up speakers.

    Do you have the make/model of your sub? If you do, it will be easier for us to recommend you something.. 🙂

    #2200441
    DJ Malsidious
    Participant

    really loving the Yamaha DXR series. 1100 watts per speak. Sounds amazing. Not that large either and fits comfortably in any sedan. The 15′ sub on the other hand can be a handful as it’s ridiculously large.

    #2200461
    Hot Since 94
    Participant

    Alright so the sub is a Behringer 18 inch with 400 W continuous output. Can this be used with a 600 W continuous output powered speaker? Will this pump hard a f?

    #2200471
    DJ Malsidious
    Participant

    I’ve never been a big fan of Behringer. I find the quality low and long term reliability low-moderate. I do like their mixers though. Lot of bang for little buck. I’m not entirely sure anything they make for audio is going to bang. You’re better off looking at Yamaha, QSC, Mackey, or JBL.

    #2200481
    Hot Since 94
    Participant

    Well I already have the sub (its my moms lol). So im SOL for that.

    I just need a speaker that I can use with it, and of course Im not trying to spend too much. Is a 400 W sub compatible with a 600 W powered speaker, regardless ofquality?

    #2200501
    bob6397
    Participant

    Depends on the size of the room. I use 2x500W RMS 15″ speakers (no sub) at my weekly gig in a room which is approx 30 x 20m big. I have plenty of volume and never hit the limiters (unless I really push it lol). If I had a 400W sub, I would want 2 x 400W tops and simply adjust the volume on them until it sounds balanced. It the sub active or passive?

    If it is passive, you will want to run through a crossover (which splits the audio so that only the low frequencies got to the sub and only the high frequencies to the tops) – and this is where it becomes tricky. No company (that we know of – it comes up fairly often) makes a crossover that will just split between a sub and tops.

    As you couldn’t use a crossover becuase of that, I would recommend that you just get a decent pair of active speakers and forget about using the sub – it isn’t powerful enough to compete with any pair of decent active speakers anyway. You might as well just get decent speakers..

    What I would do (and indeed what I did do) is to get a pair of decent 15″ speakers that can cover the whole frequency range without needing a sub. Or you could get a system such as the LD Systems Dave series, HK Audio Nano 600 etc. instead – these are cheaper, smaller systems which incorporate a sub with matching tops as a set. Best of both worlds and easier to move around than a sub..

    Besides all that, the system will sound better with just a pair of tops than it will with a behringer speaker in there imho.. I used to use a behinger mixer and that was alright, but it started changing the volume without me touching it and definitely coloured the sound.. My new Yamaha is much better than that ever was!!

    bob6397

    #2200531
    DJ Malsidious
    Participant

    Bob is spot on.

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