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-   -   Passive Mains Recommendation (http://www.talkbass.com/forum/f203/passive-mains-recommendation-965513/)

Thumper 03-09-2013 05:56 PM

Passive Mains Recommendation
 
I've read most of the threads I felt pertained to this issue but most of the discussion involved powered mains, and passive VS powered subs.

The owner of the P.A. equipment wants to upgrade, we do Classic Country and some Rock, and are a low volume band with 1 electric and 1 acoustic guitar, bass and drums, but do play occasional outdoor gigs, so we need to be able to get loud as well.

We have a fully racked system which is only 2-3 years old, so what are needed are new mains, maybe a sub (if the one I have doesn't work out (a passive 18" JBL (and perhaps a crossover system)). We want passive speakers and/or sub because we are going to keep the power system, but the owner is tired of rebuilding the ‘80 era's mains and wants something lighter.

Here is a list of the current equipment:

Mackie Onyx 16 channel mixer
Power amps: Crown XTi 4000, XTi 2000
2 DBX stereo equalizers
DBX 255 XL compressor
Lexicon MX 200 reverb
2 BBE Sonic Maximizers
Furman Power Conditioner
Mains: JBL 12" 2 way SR 4722, 600 watts

Any input or recommendations are appreciated.

RS66LB 03-09-2013 09:57 PM

A simple soulution that's relatively inexpensive, somewhat light and has decent fidelity would be the Carvin PM12's. Based on your playing volume one speaker per side would work however for larger gigs or outdoor shows you could use 2 per side using Carvins single S5 dual mount bracket (allows 2 speakers on a single stand). The speakers are $179 each while each bracket is around $20. Of course the Peavey PR-12's are simular in weight, performance and price and would probably work out too.

guy n. cognito 03-09-2013 10:03 PM

http://www.musiciansfriend.com/pro-a...b-speaker-pair

I had a pair of these and they were fantastic. I only sold them because I went active.

modulusman 03-09-2013 10:08 PM

Quote:

Originally Posted by RS66LB (Post 14006463)
A simple soulution that's relatively inexpensive, somewhat light and has decent fidelity would be the Carvin PM12's. Based on your playing volume one speaker per side would work however for larger gigs or outdoor shows you could use 2 per side using Carvins single S5 dual mount bracket (allows 2 speakers on a single stand). The speakers are $179 each while each bracket is around $20. Of course the Peavey PR-12's are simular in weight, performance and price and would probably work out too.

Not sure but I think the OP is looking for better speakers than what you suggested. I could be wrong since Mackie doesn't make a xenyx mixer. i assume he mean't onyx. I would suggest some newer JBLs. the stx 800 series or PRX400 series.

Thumper 03-09-2013 10:56 PM

Quote:

Originally Posted by modulusman (Post 14006506)
Not sure but I think the OP is looking for better speakers than what you suggested. I could be wrong since Mackie doesn't make a xenyx mixer. i assume he mean't onyx. I would suggest some newer JBLs. the stx 800 series or PRX400 series.

You are correct on both counts, it is Onyx. We are not looking for an inexpensive solution, but a good one. I understand the trend is powered by why go for the added complexity when you already have good amps? A blown passive component is an easy fix, not always the case with a powered one. We want very good and lighter mains.

modulusman 03-10-2013 08:30 AM

The new STX 812m is basically the newest generation of what you are using now. They weigh 42 pounds which is about 15 pounds lighter than your current cabs. If you could find any of the recently discontinued 712m series they are even lighter at 33 pounds.

Thumper 03-10-2013 09:00 AM

Prior to your last and checking prx 400s 12s were $499, 126db and 38lbs. 15s were $499, 128db and 46 lbs. What is the advantage either way? We don't plan to put drum or bass into the mains.

Checking stx they were nearly $1,000 more per cab? Is there that kind of difference in sound? Are there other brands to check in case something comes up for sale locally? Next gig is 2 weeks so we have a little time

modulusman 03-10-2013 09:09 AM

The stx 800 series would be considered a pro speakers where the mrx isn't. I really don't have any experience with good passive gear since I went to powered speakers about 10 years ago. You might post over here and would probably get alot more responses http://www.harmonycentral.com/t5/Liv...-p/acapella-33 Good luck

4Mal 03-10-2013 10:48 AM

Passive mains... Meh... Seriously the advances are being made in onboard DSP controlled powered mains. Yeah I know you have the power rack but when you say added complexity... There is none. Wen you're talking reliability, check around the forum here and at ProSound.Web about the latest generation of powered stuff. The track record is pretty well established at this point.

Before throwing good money after ... Go audition a set of QSC k12's or the equivalent from JBL.

Guitar Center has a wall of stuff to demo... Just sayin'

RS66LB 03-11-2013 02:42 AM

Quote:

Originally Posted by modulusman (Post 14007711)
The stx 800 series would be considered a pro speakers where the mrx isn't. I really don't have any experience with good passive gear since I went to powered speakers about 10 years ago. You might post over here and would probably get alot more responses http://www.harmonycentral.com/t5/Liv...-p/acapella-33 Good luck

Hey friend -my neighbor was wondering if you could possibly explain what the technological differences are regarding individual speaker choices and how in blind tests it's sometimes difficult to match selection of perceived quality relative to expense of product since in many situations you may find an inexpensive 12" stamped frame driver with a resonant frequency, magnet size, frequency response, efficiency and power handling much the same as it's cast frame counterpart, I mean aside from the obvious stability of the more rigid cast frame they would otherwise seem much the same, essentially I need you to explain how an individual speaker used in a $200 cabinet differs from those used in $2000 cabinets -does one have less power compression and if so is it a thermal issue where the cast frame would sink the heat away better due to more mass? is there a more controlled beamwidth in one over the other? Is it even a major factor due to the crossovers typically being set below the point in which annoying beaming is a non issue? could the impedence curve differences factor in and do the Q differences really mean that much? I mean in many cases even the Vas is relatively close. I'm sorry to have troubled you with these basic questions, it's just that my neighbor has this Emerson clock radio that needs a 2" speaker cause his wife stabbed the original one out back in 83'. Thanks a million for your help and have an awesome day.

modulusman 03-11-2013 06:22 AM

Quote:

Originally Posted by RS66LB (Post 14011712)
Hey friend -my neighbor was wondering if you could possibly explain what the technological differences are regarding individual speaker choices and how in blind tests it's sometimes difficult to match selection of perceived quality relative to expense of product since in many situations you may find an inexpensive 12" stamped frame driver with a resonant frequency, magnet size, frequency response, efficiency and power handling much the same as it's cast frame counterpart, I mean aside from the obvious stability of the more rigid cast frame they would otherwise seem much the same, essentially I need you to explain how an individual speaker used in a $200 cabinet differs from those used in $2000 cabinets -does one have less power compression and if so is it a thermal issue where the cast frame would sink the heat away better due to more mass? is there a more controlled beamwidth in one over the other? Is it even a major factor due to the crossovers typically being set below the point in which annoying beaming is a non issue? could the impedence curve differences factor in and do the Q differences really mean that much? I mean in many cases even the Vas is relatively close. I'm sorry to have troubled you with these basic questions, it's just that my neighbor has this Emerson clock radio that needs a 2" speaker cause his wife stabbed the original one out back in 83'. Thanks a million for your help and have an awesome day.

And you say I need to get back on my meds.:D I suggested the OP check out another forum that has real engineers that could help him.

guy n. cognito 03-11-2013 07:14 AM

Quote:

Originally Posted by modulusman (Post 14012013)
And you say I need to get back on my meds.:D I suggested the OP check out another forum that has real engineers that could help him.

Honestly. The OP is looking for recommendations on speakers on a budget, not a dissertation from an engineer on high end audio gear. ;)

Thumper 03-11-2013 09:31 AM

Quote:

Originally Posted by guy n. cognito (Post 14012174)
Honestly. The OP is looking for recommendations on speakers on a budget, not a dissertation from an engineer on high end audio gear. ;)

This is so true. The old speakers still work, but are showing their age, and so are our backs.

Looking at the local "Craigslist" all I found were pair of Electro-Voice ELX115P's which were bought new last July, have been used 2-3 times and come with original packaging, documentation (even still have the stickers on them).

According to the specs, they are around 54 lbs, so not really lightweight, but could probably be had for $1,000 or less. Any opinions? The reviews seem good, but most people's reviews tend to support their buys (which is why I NEVER give a review on anything I haven't had or used for at least 2 weeks).

Vinny D 03-11-2013 10:32 AM

Quote:

Originally Posted by Thumper (Post 14012855)
This is so true. The old speakers still work, but are showing their age, and so are our backs.

Looking at the local "Craigslist" all I found were pair of Electro-Voice ELX115P's which were bought new last July, have been used 2-3 times and come with original packaging, documentation (even still have the stickers on them).

According to the specs, they are around 54 lbs, so not really lightweight, but could probably be had for $1,000 or less. Any opinions? The reviews seem good, but most people's reviews tend to support their buys (which is why I NEVER give a review on anything I haven't had or used for at least 2 weeks).

I have used this speaker a few times, I liked them a lot.
Get loud without a lot of power behind them and they sound good.
Box construction is pretty rugged but the coating/finish sucks on them (scratch/chip easily). So buy slip covers if you go with them.
Also, you can buy that box new for a lot less then 1000/pr.

EDIT:
My comments are based on the passive version ELX115.
If you have the amps I would go this route, the box needs very little EQ'ing to sound great.

DWBass 03-11-2013 10:39 AM

What's your budget?

Thumper 03-11-2013 11:16 AM

Budget is around $2,000.

If powered mains go down during a gig can you use an amp to finish the gig?

DWBass 03-11-2013 11:46 AM

Quote:

Originally Posted by Thumper (Post 14013465)
Budget is around $2,000.

Cue modulusman..............


as for the powered speaker outage question.....I'm not sure if powered speakers have an option to be run by an external amp.

Tuned 03-11-2013 02:58 PM

Mains can go louder when there's a subwoofer handling the deep lows. When driving full range, PA woofers reach their excursion limit at about half their thermal limit (where the voice coil melts). When deep lows are filtered out, excursion is no longer the limiting factor.

Getting newer JBL's is a good idea, I'd recommend MRX515's since they're 2dB more efficient than the new STX815's. They're only 1dB louder and it takes twice the power to get there.

Before buying a subwoofer, try out a Yorkville LS608, LS808, or LS801P. I recommend you buy an LS608 and power it with a Peavey IPR3000 bridged, but any of those three models will demonstrate how awesome their reflex horn designs are. All standard ported box subs suck by comparison.

I've done outdoor festivals of ~500 with a pair of older 800W LS808's and PRX515 tops and had juice to spare. From a production company's perspective more PA should have been provided obviously, just saying what they can handle.

modulusman 03-11-2013 04:20 PM

Quote:

Originally Posted by Thumper (Post 14013465)
Budget is around $2,000.

If powered mains go down during a gig can you use an amp to finish the gig?

No, as far as I know.

modulusman 03-11-2013 05:18 PM

Quote:

Originally Posted by Thumper (Post 14007679)
Prior to your last and checking prx 400s 12s were $499, 126db and 38lbs. 15s were $499, 128db and 46 lbs. What is the advantage either way? We don't plan to put drum or bass into the mains.

Checking stx they were nearly $1,000 more per cab? Is there that kind of difference in sound? Are there other brands to check in case something comes up for sale locally? Next gig is 2 weeks so we have a little time

I have never heard the stx812m series speakers since they are brand new. I have heard the 712m they replaced and they were a good sounding cab. I'm not sure what the difference but I think they 800 may not use Neo speakers. The difference between the 400 and 800 is more power handling and the choice to bi-amp or use the passive crossover on the 800 series.


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