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[Nathan Schwarzkopf]

I Purchased the 5050 to run subs bridged at 4ohms. when I set it all up I would say it was less than impressive.  It drove the cabs(ev mtl-4).  I thought 2 plx 3402 beat the pants off of it.
I there a pl 6.0 in the milwakee, madison area I could rent to test.  If anything the rmx's will be a cheap back up.

Figured y'all might want 2 no
AL K.

[Al Limberg]

I'm interested in exactly how you wired your cabs.  As I recall, the MTL-4 was wired as 2  4 ohm loads, being loaded with 4 eight ohm 18s.  If yours are stock, then bridging the amp in to 2 MTL-4s would appear to be loading it down to 2 ohms bridged and to me, the fact that it survived would seem pretty impressive ;o)

On the other hand, using 2 PLX3402s in parallel mode into the 4 available 4 ohm loads would give you a real solid 4400 watts.  Now if only the MTLs covered that last half octave like a Lab or a BassMaxx........

Maybe you can help me out here.

Thanx,
Al

[Nathan Schwarzkopf]

the mtl are mod-ed to make 1 8 ohm circuit.  so I drive 2 sub cabs with 1 amp.  I did a show with them this weekend and they did o.k., they didn't shut down but on the first test run of the amps my face probably looked like this guy .  

for the last  1\2 i've actually looked at some aura subs and then would try to go 5 way but so far its just been a passing thought.

[drpa]

Your application is typical for large sound company kinds of L.F.  This amp, in my opinion, is not up to THAT task.  I have not tested the 5050, but, I did a 2 ohm, 2 driver per side against ALL comers with the 4050 and found it lacking.  I think your application requires something AT LEAST as good as PLX.  The PL & PLII's have even more punch, and the PLII's sound GREAT on the top end, (REALLY great).

[Elliot Thompson]

AL
the mtl are mod-ed to make 1 8 ohm circuit.  so I drive 2 sub cabs with 1 amp.  I did a show with them this weekend and they did o.k., they didn't shut down but on the first test run of the amps my face probably looked like this guy .

Elliot Thompson
A Few Things I've Noticed

1. By you using the series-parallel scheme, you reduced
the speakers sensitivity.

2. By using 2 PLX 3402's, speakers wired in parallel,
oppose the series-parallel scheme, you would'nt have
loss the sensitivity.

Why don't you rent another RMX 5050, and use the same
speaker configuration as you would do with 2 PLX 3402.

But to be honest, you are only gaining 2 dB's more,
using 2 RMX 5050's -vs- 2 PLX 3402's

IMHO, I don't see the RMX 5050 at fault here.

Best Regards,

[Tim Padrick]

I think I'd go LAB subs, but if you want to stay front loaded, go with the CGN instead of the Aura.  The CGN has a number of improvements that even the latest Aura lacks.  (The CGN is the BassMax driver.)  http://www.bhivemotor.com/

[Ronnie Blenden]

In response to this post I quote the old saying..."you get what you paid for".  Don't expect an amp that costs half as much as a pro series amp with the same power rating to sound the same.  Bass response is "exactly" where you don't want to use these types of amps.  Then just can't handle it.   The PL 6.0 would flat walk all over an rmx5050 but then again it is built better!!!  Personally I wouldn't use the rmx series if someone gave me a whole rack full of them.  If you want to stick with qsc then go for the power light stuff or stick with the plx series.  Otherwise step up to the plate and buy Crown macrotech, crest pro series or even their CA series.

[Tom Herr]

captainjack wrote on Fri, 23 July 2004 06:19

In response to this post I quote the old saying..."you get what you paid for".  Don't expect an amp that costs half as much as a pro series amp with the same power rating to sound the same.  Bass response is "exactly" where you don't want to use these types of amps.  Then just can't handle it.   The PL 6.0 would flat walk all over an rmx5050 but then again it is built better!!!  Personally I wouldn't use the rmx series if someone gave me a whole rack full of them.  If you want to stick with qsc then go for the power light stuff or stick with the plx series.  Otherwise step up to the plate and buy Crown macrotech, crest pro series or even their CA series.

I agree that the PL6 would out perform the RMX5050. However given the choice between, Crown MA5000, Crest Pro Series or QSC PL, I would pick QSC Power Lights everytime. YOMV

[Bob Lee (QSC)]

Hi Al,

Less than impressive in what way?

[Nathan Schwarzkopf]

Hi

Sorry for not getting back in so long but its been a busy summer.


The subs didn't seem as full.  The sound out of them seemed more transparent than a full wall of sub sound.

I'm sorry I lack the technical descriptions you might be looking for.

Since were talking ... is there suppose to be a pop when the 5050 turns on? 2 do it 1 does not.

Later on fellas

AL K.

[Bob Lee (QSC)]

There may be a small pop or thump, but it shouldn't be anything much. If it's loud or really noticeable, there's probably something wrong.

Because of the human ear's non-linear sensitivity to low frequencies, even slight gain mismatches can have a large effect on the perceived loudness or "fullness" of sub systems. I'm not saying that is the cause of your experience, but it is quite common and something that is easily overlooked.

[Phil Ouellette]

Bob Lee (QSC) wrote on Mon, 23 August 2004 11:57

Because of the human ear's non-linear sensitivity to low frequencies, even slight gain mismatches can have a large effect on the perceived loudness or "fullness" of sub systems. I'm not saying that is the cause of your experience, but it is quite common and something that is easily overlooked.

The drummer in a church gig I used to do, loved to sneak in and re-eq his drum mics.  I could always tell he had been at it because all of the eq gain controls on his channels were turned up to max boost (like I wasn't going to notice that).  His claim was that it just sounded better that way.  My response was "that's what the fader is for".  Louder always sounds better when comparing gear or eq settings etc.

Phil