School & Teen Events Using dissimilar main speakers

[bluehand]

Would it be possible to use

these dual 15s

http://www.sweetwater.com/store/detail/JRX125/

With these single 15's

http://www.sweetwater.com/store/detail/JRX115/

And two of these subs?

http://www.sweetwater.com/store/detail/PRX618SXLF/


I want to use the single 15s for smaller events, house parties, etc. to make tranpsort and setup easier and still be able to incorporate them into my larger setup, what do you think? I have thought about either setting them on stands at an equal heigth as my duals, hoisting them on a truss, putting them right on top of my dual 15s, or putting them way to the outside

 

[Scott Harris]

Outside of high end arrays, you can't (shouldn't) cluster or stack main speakers in DJ use. You can use them for wide coverage, but putting them side by side or stacked on top causes cancellation & phasing problems. I suggest that you get stronger mains like the MRX515's and you will be very happy with both the sound and reduced weight.

 

[ahoustondj]

Outside of high end arrays, you can't (shouldn't) cluster or stack main speakers in DJ use. You can use them for wide coverage, but putting them side by side or stacked on top causes cancellation & phasing problems. I suggest that you get stronger mains like the MRX515's and you will be very happy with both the sound and reduced weight.

Thats a second for you Bluehand. I had sent you a PM stating the same thing.

 

[drzinc]

Scott I would agree with you on this point most of the time, but in this case the tops are from the same company and same series. Tonally they will be a match with the dual 15"s giving a bit more spl. The way they should be used together is a bit different. Place your dual 15"s they way you normally put them and then placed the single 15"s on top but upsided down so that the tweeter horns are together. In this configuration you will not get phase and cancellation problems. Be aware that a single amp would be hard pressed to run all four tops.

 

[eddieyourdj]

I can say that, in my experience, I can tell a difference if I try & use my old 450s with the new ones. I tried to use one of both & there was def. a volume difference. I run either the older pair or the newer ones. When I have larger venues that require all four I just daisy-chain the newer pair as the outer ones on both sides & all is good!!!

 

[bluehand]

Scott I would agree with you on this point most of the time, but in this case the tops are from the same company and same series. Tonally they will be a match with the dual 15"s giving a bit more spl. The way they should be used together is a bit different. Place your dual 15"s they way you normally put them and then placed the single 15"s on top but upsided down so that the tweeter horns are together. In this configuration you will not get phase and cancellation problems. Be aware that a single amp would be hard pressed to run all four tops.

Thanks thats what I was thinking with the speakers being the same model, and I just didnt know how to set it up. And the thing is I already have the dual 15's and subs im not looking just to make my main set up louder but make a smaller more portable arrangemenet for smaller venues, and knowing that I CAN incorporate the single 15's in to my set up I have already for larger gigs just is icing on the cake

 

[Scott Harris]

Sorry to be jumping back in late on this and hope you haven't purchased yet but I suggest that you find a retailer who has both the JRX & MRX lines in stock and listen to the difference. The JRX is JBL's "entry level" speaker and not what I consider professional equipment. It is the bottom end of the market comparable to the low end Gemini, Nady and other entry level speakers. I have never owned them, but I have run sound for bands through them as monitors (their gear) and I could never get them to sound good regardless of EQ, positioning or volume level. These bands are well aware that they are crappy speakers and only use them as monitors and use better gear for FOH speakers. I would upgrade to a better speaker which would be smaller, lighter, louder and better sounding.

Before anyone who owns low end gear and is going to jump on this as a hater post, it's not. Low end gear definitely has it's place in the market. I am suggesting that he upgrade as the solution rather than adding more low end gear in his quest to get louder. Yes you can stack speakers upside down, but that's an emergency setup not something you would want to do on purpose, especially with speakers that don't sound great in regular use. If you do stack, make sure you strap everything together in 3 directions and think very carefully about insurance.

 

[DJ_MJ]

The JRX is JBL's "entry level" speaker and not what I consider professional equipment. It is the bottom end of the market comparable to the low end Gemini, Nady and other entry level speakers.

This is nothing more than an IGNORANT statement. To compare the JRX series to "low end Gemini, Nady and other entry level speakers." is ridiculous. You are correct (of course) about them being the entry level from JBL. That said, they are entry level, PROFESSIONAL EQUIPMENT...from a respected name in PRO audio. Apparently, you know better than JBL. The JRXs are miles better than anything by Gemini. These are very solid speakers...for the money! Of course more money will (generally) get you better sound. The MRX series costs TWICE AS MUCH. If you are on a budget and need a solid, dependable product, the JRX series is as good a place as any to start.

 

[MtownDJ]

This is nothing more than an IGNORANT statement. To compare the JRX series to "low end Gemini, Nady and other entry level speakers." is ridiculous. You are correct (of course) about them being the entry level from JBL. That said, they are entry level, PROFESSIONAL EQUIPMENT...from a respected name in PRO audio. Apparently, you know better than JBL. The JRXs are miles better than anything by Gemini. These are very solid speakers...for the money! Of course more money will (generally) get you better sound. The MRX series costs TWICE AS MUCH. If you are on a budget and need a solid, dependable product, the JRX series is as good a place as any to start.

OR just not buy JBLs period. :triwink:

 

[Scott Harris]

This is nothing more than an IGNORANT statement. To compare the JRX series to "low end Gemini, Nady and other entry level speakers." is ridiculous. You are correct (of course) about them being the entry level from JBL. That said, they are entry level, PROFESSIONAL EQUIPMENT...from a respected name in PRO audio. Apparently, you know better than JBL. The JRXs are miles better than anything by Gemini. These are very solid speakers...for the money! Of course more money will (generally) get you better sound. The MRX series costs TWICE AS MUCH. If you are on a budget and need a solid, dependable product, the JRX series is as good a place as any to start.

Wow! Sorry that you are taking personal offense to this. I have nothing against JBL (or any other manufacturer) and understand the need to provide a low end product for the masses and I also understand the marketing value of of a well know brand. I applaud them on this product line as it does exactly what it is intended to do. However, there is no sound coming from the little orange logo. Heck, it doesn't even light up! :tribiggrin: