|
Macro-Tech MA5000vz |
Post Reply 
|
Page <123 |
| Author | |
_djk_ 
Old Croc 
Joined: 23 November 2004 Location: United States Status: Offline Points: 6002 |
 Post Options
 Thanks(0)
 Quote Reply
 Posted: 30 January 2008 at 10:16am |
|
The main reason the vz3600 eats drivers is because it does not have the loudspeaker off-set integrator like the vz5000 does.
If you turn it off on your vz5000, you too can eat woofers like Pacman.
|
|
|
djk
|
|
 |
|
|
Elliot Thompson
Old Croc
Joined: 02 April 2004 Location: United States Status: Offline Points: 5175 |
Post Options
Thanks(0)
Quote Reply
Posted: 30 January 2008 at 11:03am |
I disagree. As a MA 5000 user which turned off the Loudspeaker Off-Set Intergrator, and Compressors from the first time I pulled them out of the shipping carton, I can assure you if you know what you are doing you will not lose a driver on the MA 5000, 3600, 2400, 1200, & 600. I've got a rack of 5 Powerbase 3's that only offer an enable indicator. I never lost a driver on those either. Again, Crown MA amps are steered to those that have a full understanding on what they are doing. When the MA 3600 was released, it was ahead of its time. Meaning, there wasn't any driver that can withstand 800 - 1000 watts on a continuous basis. Everyone was either using the MA 2400, PRO 8001, or EX 4000 which is not in the same league of the MA 3600 in terms of raw power. Best Regards, |
|
|
Elliot Thompson
|
|
|
|
|
SteveAATW
Young Croc 
Joined: 04 September 2007 Status: Offline Points: 1173 |
Post Options
Thanks(0)
Quote Reply
Posted: 30 January 2008 at 5:34pm |
|
I'd second that - if you rely on amp limiters to save you then you are really holding yourself as a hostage to incredibly good fortune.
The limiting and gain structure should be sorted before the signal gets to the amp and the amp should be suitably picked so that any fast transient peaks that do come through aren't going to pop the drivers. The macrotechs have been said to burn things out quicker than other amps but, whether this is due to their high low end distortion adding to the woes of an already distorted signal I don't know but point is that any decent amp will chew a driver up if you give it a dangerous or clipped signal level. Clip limiters on an amp can't really do much - they can't magically unclip the signal. There are some amps with sidechain signal limiters but even then, if the system is setup right you should never see the limit light. |
|
|
|
|
shaun1264
Registered User 
Joined: 06 September 2013 Location: Surrey Status: Offline Points: 292 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 November 2022 at 8:49am |
|
Sorry to reserrect this old topic. ...
I don't understand why people think the MA5000vz has distortion in the bass. "high low end distortion". This is fundamentally wrong. Actual fact I've measured the distortion on many of these Grounded Bridge designs including the MA5000Vz and they offer some of the lowest distortion available in high power amplifiers. Only MC2s better them. Reason being they have very low distortion is simply the very high level of negative feedback in the topology. Global and local.. Negative feedback is essential in ampliers to lower distortion, widen bandwidth and lower output impedance (damping factor). Negative feedback is what keeps the planes in the air, our ability to balance on one leg or drive our vehicles. Crown have this negative feedback topology to perfection. Simply put this is what gives the MA5000Vz the bass and low distortion. All orders of the distortion is so low. 2nd right through to 9th harmonic... If people are blowing their speakers they simply don't know how how these amps work and the meaning of the IOC indicators. The really need to look at their gain stuctures and or limiters a few chains back from the amp. If you are going to shove 5 volts into the input on the 26db setting of these amps rest assured you are will damage drivers. |
|
|
|
|
levyte357-
Old Croc
Joined: 27 July 2012 Location: UK, South East Status: Offline Points: 8128 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 November 2022 at 10:17am |
One of the reasons for this, could be, many owners cannot afford to get amplifier output sections repaired properly, and in early 2000s, when these were eally in demand, many of them on the market had non Crown transistors, which meant horrible sound.
|
|
|
Global Depopulation - Alive and Killing.
|
|
|
|
|
shaun1264
Registered User
Joined: 06 September 2013 Location: Surrey Status: Offline Points: 292 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 November 2022 at 6:49pm |
|
You are correct in what you say, unmatched bi-polar transistors will cause havoc. Burn up and mess with ODEP.
|
|
|
|
|
Post Reply
|
Page <123 |
| Tweet |
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options
_djk_ wrote: