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Author Topic: Mobile system choices JBL PRX and SRX  (Read 242 times)

Vinny Dell'Accio

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Mobile system choices JBL PRX and SRX
« on: May 19, 2018, 11:25:53 am »

Hi,

Trying to figure out which tops are good enough for high quality sound final upgrade. Choices going from lighter to heavier and more cost. Want to buy once.

PRX835 with and without subs, thinking more flexible than 812s.  Is PRX835 as 3-way close enough to SRX choices?

SRX812 with subs underneath for lighter weight per speaker? Close enough in sound to 835?

SRX835 with and without subs, quality so much better, worth the weight?


Thanks,

Vinny
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Debbie Dunkley

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Re: Mobile system choices JBL PRX and SRX
« Reply #1 on: May 19, 2018, 12:42:44 pm »

Hi,

Trying to figure out which tops are good enough for high quality sound final upgrade. Choices going from lighter to heavier and more cost. Want to buy once.

PRX835 with and without subs, thinking more flexible than 812s.  Is PRX835 as 3-way close enough to SRX choices?

SRX812 with subs underneath for lighter weight per speaker? Close enough in sound to 835?

SRX835 with and without subs, quality so much better, worth the weight?


Thanks,

Vinny

Vinny , I have both PRX and SRX series speakers. However, I went with single 12's and 15's because I pretty much always use at least one sub and rarely need the low end available in a single cabinet.

It really depends what you will be using them for and whether or not you consider the extra money worth it.
For my money, and most folks here will agree that the SRX series is tough to beat in its price range. When I got mine, I was considering the SRX835 but didn't feel the dispersion angle would be as good for me. The SRX812 and 815 offers wider coverage for the shows we play PLUS of course with subs, the low end isn't a consideration for me.

The PRX series are great speakers though and might serve you well - again it depends. I have used PRX612's and PRX712's for FOH and monitors and have had very good results. However, side by side the SRX is superior in clarity, separation and overall SPL.
The SRX series is heavier than PRX and this must also be a consideration.
Also there is the better DSP and software control on the SRX.

Currently I usually use either a combination of SRX812/15 over SRX818/828 or for smaller shows I use Yamaha DSR112/PRX712 over PRX718xlf /Turbosound IQ18.

I have not used PRX835 or the SRX835 so I cannot really comment much on those cabs specifically except to say if this is really a final upgrade, you won't regret getting the SRX over the PRX and if you really need the low end sans subs - maybe the 3 way cabs are the way to go. Just my 5c.....


In addition one final thought:
The SRX815's are surprisingly good in the low end and you might find them adequate without subs for smaller shows - again it depends on your needs. It is   also a lighter option to the 835 and easier to deploy ie. pole/stand mount.


« Last Edit: May 19, 2018, 12:56:36 pm by Debbie Dunkley »
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A young child says to his mother, "Mom, when I grow up I'm going to be a musician." She replies, "Well honey, you know you can't do both."

Vinny Dell'Accio

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Re: Mobile system choices JBL PRX and SRX
« Reply #2 on: May 20, 2018, 11:26:14 am »

Debbie, 

Thanks for your reply.   Hope you don't mind, I paraphrased some info from some of your posts so I want to give credit where due.  You are a big help to many.

I probably would have done exactly what you did with your speaker choices, but I think not having any powered speakers yet, I should just go for a little more money and use a SRX system.  I was thinking of a PRX710/710 over PRX715/718XLF since it is light and inexpensive for small jobs and volunteering, but to avoid expense the SRX can be used for both. 

I do have 4 Yamaha 15" Clubs, 2 JBL JRX dual 15s, and a Yamaha StagePas i400 compact 8s over a 12 for my volunteer jobs, the Yamaha is great for quick small events.  Currently, I do mostly volunteering, years back I did pro for 15 years, want to go pro again.  Typically, I would do jobs at halls, restaurants, and catering halls, occasionally outdoor events for 50-200, this October I'm doing 1000+ and just have to bring everything I have, but need big cheap subs.  The SRX 835s over 2 828s would be sufficient I bet rather than carry 3-4 pairs of speakers and possibly subs to assist my double-15s.

That leaves me with SRX812/815/835.
835s - If weight and money no object I heard the 835s are magical, great sound and loud.  The narrow dispersion I heard was not an issue for most in other forums, but like you I'm concerned coverage may not be adequate for certain room dimensions.  On the other hand, the narrow dispersion may yield more focused sound and less reflections from the walls, good for rooms that are overly reflective, little sound absorption; then outside or in very large rooms, the 835s would have more throw.  Some tend to face the 835s in to each other more, only an issue if you need uniform sound in a very wide room.

Would be great to hear from anyone who can compare  the 835s to the 812s with subs or the 815s for sound quality in the shared frequency ranges.  Also if easier to carry 2 835s vs. 812s with subs (4 speakers).

812s vs. 815s - There are so many responses that 12s have better sound or clarity than 15s.  Maybe on high-end, like SRX or DSR, this is not an issue.  The 3-way seems ideal since vocals predominantly have the dedicated midrange and beaming is totally avoided.  The 15s and 12s to a lesser extent by actual physics have beaming but using a better HF horn and DSP compensates.
If the SRX815s sound very close to the 812s for vocals, midrange, and overall clarity, might as well buy them since only 5 more pounds than the 812s.  Then they can be used solo or with subs.

Final thoughts:
The PRX710/712s over a PRX715XLF would be fairly light 36-42 lb. over 56 lb. subs.
The SRX815s with or without subs, 62 lbs. if sound quality equal to 812s.
The SRX812s over subs, 58 lbs. over 87 lb. subs (PRX 18 sub not much lighter)
The SRX835s only option that would handle 90% without subs, probably opt for 1 828 centered.  Most people if money no object would by multiple subs to keep up with tops.

If I had to buy today,  it would be either the SRX812s(vocals) vs. 815s(instruments, fuller sound, more bass), the 815s would win.  If 835 price and weight not an issue, no issue with 60 degree dispersion, the 835s would handle all types of sound, may grab the PRX710s for $400 to fill-in possible gaps close-up to stage.  If 2 818s are close to sound of 1 828, think this would be more flexible since center cluster would yield close to same SPL.

Vinny
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