puck

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  1. I just got a NEW 402D, through my dealer,in cooperation with Mr. David Glass from CROWN. I just tried it out. Here's what it is doing. If I power down, with the gain up in the 9 o'clock position, I get the thump. If I turn the gain all the way OFF, or down, I am not getting any thump at all. My previous problematic unit was giving me the thump no matter where the gain was. Up,down, it was always thumping. This NEW unit seems to be ok so far. I haven't had a chance to really push some signal through it yet. I guess that will be the test.If you have concerns about your unit, don't hesitate to call Mr. Glass and talk with him. He is very helpful! You could also check on Crown's main website for a service center near you. That may be an option. If you do take it to a service center, be sure to print out this entire dialog and show it to them. The more information that they have about the problem, the easier it will be for them to diagnose the problem. It kind of appears that there may be some kind of issue with either the design of this amp, or the internal components. I'll post any more "findings" on this new unit as soon as I put it through a "real world" test this weekend. 3851[/snapback] Wow this really worries me as I have been talking to crown support and they have told me that this problem was limited to only the first couple of hundred amps that were shipped. When I turn down my gains there is no thump but with the gains turned up I do get a thump. I'm running 3 402D's with one 402B in my home theater. The 402B does not have this problem at all as I can shut it off with the gains turned up with no thump. Can someone at Crown please let me know if this problem can be fixed (Turning off the amp with the gains turned up and not getting a thud in the speakers) or is it just the way it is. I don't mine sending out the 402D's for repair/replacement if it indeed can be fixed. 3854[/snapback] This is very interesting information. You got more info than I could ever get! I did a little experiment with my other power amps to see how they operated on power shutdown. An OLD JBL, an OLDER Peavey, and a piece of junk Gem ($99) all were tested on shutdown, WITH GAINS AT FULL VOLUME, and not one noise out of all of them. It appears that there MUST be a design problem in all of these amps that pop on shutdown. My NEW REPLACEMENT DOES IT AGAIN. I think Crown should stand behind this faulty issue and fix it right. I guess I can live with turning the gains down prior to shutdown, which I already do anyway. At this point, it's a matter of a company standing behind their product. I don't really know if they are at this point. Funny thing... as I was leaving my dealer, my associate said," You should have bought a Q _ C "! I think he was right!!!!!
  2. I just got a NEW 402D, through my dealer,in cooperation with Mr. David Glass from CROWN. I just tried it out. Here's what it is doing. If I power down, with the gain up in the 9 o'clock position, I get the thump. If I turn the gain all the way OFF, or down, I am not getting any thump at all. My previous problematic unit was giving me the thump no matter where the gain was. Up,down, it was always thumping. This NEW unit seems to be ok so far. I haven't had a chance to really push some signal through it yet. I guess that will be the test.If you have concerns about your unit, don't hesitate to call Mr. Glass and talk with him. He is very helpful! You could also check on Crown's main website for a service center near you. That may be an option. If you do take it to a service center, be sure to print out this entire dialog and show it to them. The more information that they have about the problem, the easier it will be for them to diagnose the problem. It kind of appears that there may be some kind of issue with either the design of this amp, or the internal components. I'll post any more "findings" on this new unit as soon as I put it through a "real world" test this weekend.
  3. With mine, the gains were down, the preamp was unplugged from the amp ( in other words, there were no outboard signals coming into the amp... and it still made a pop ,as you described, like your speakers were getting blown out. That sound makes you real nervous coming from your brand new Mesa powerhouse 1000 cabinet !!!!! I am going to call the repair shop and see if they will tell me what the "issue" is with the amp. I'll post their reply. 3746[/snapback] If you are still having problems with the amp(s) please contact the dealer you purchased them from to have them do an exchange as we cannot do direct to end user exchanges. If they have have any questions have them contact me? 3792[/snapback] Finally, after 5 weeks in the repair shop, and a long discussion with Mr. Glass at Crown, I have my amp back. I am going to do an exchange through my dealer to get a replacement. The repair shop said," It works fine. We're not getting any popping at all." So they actually did not do anything to it. Maybe the relay that David was talking about became "unstuck" in their care. So...I take the amp and hook it all up, hoping that maybe all is well and I won't have to send it back. Guess what? No "pop" !! Hey this is cool. But wait...this amp is BRIDGED MONO into a 4 OHM cabinet. Supposedly, it should be putting out 1140 watts. I should be deaf from this. NOPE !!!! It's quieter than my old JBL amp which only puts out 800 bridged mono. Here we go again! I re-configured the mono - stereo hookup on the amp,trying it both ways through the same cabinet. I determined that channel A, or channel B,are putting out the same watts as I get bridging it mono. So it now looks as though the "MONO-DUAL" switch on the back may be faulty, or something else inside may be wrong. Could this have happened at my "wonderful" repair shop?! Who knows. Let's hope the "replacement" works! At this point, I am not at all confident that this amp is going to get me through my shows. I surely don't want ot have to carry a second amp, just in case this one decides it doesn't want to work right. For all of you that own the XLS series... I hope mine is just a lemon and you have good luck with yours!
  4. With mine, the gains were down, the preamp was unplugged from the amp ( in other words, there were no outboard signals coming into the amp... and it still made a pop ,as you described, like your speakers were getting blown out. That sound makes you real nervous coming from your brand new Mesa powerhouse 1000 cabinet !!!!! I am going to call the repair shop and see if they will tell me what the "issue" is with the amp. I'll post their reply.
  5. Our apologies for any issue you have been having with the amplifier but be assured that even if a product is made over seas, for Crown, it is still a Crown design and is to meet the design parameters. The XLS series has been a very reliable series for us but occasionally parts come into any manufacture that when tested everything appears alright and then shortly later will develop a problem. Be assured we take any potential issues seriously and that we are looking into this. 3566[/snapback] Well, here it is. Almost exactly 1 month since I took my brand new,fresh out-of-the-box in for service. It is being serviced by a factory authorized center, which happens to be the best one in my area. After a call to them regarding the status of this repair, I was told," We have an issue with this amp. We are working with the factory. We're going back and forth with the phones." So... Is there some kind of design problem with this amp? How do I know this thing is going to get me through all of my shows? Am I happy with this purchase? Absolutely not! I do regret not buying my second choice. (which was another brand) I guess this could happen to any piece of equipment. Am I crying over nothing? Maybe. My situation has many of my fellow musicians really questioning Crown's quality. Especially this model. It looks like it's time to dump it and purchase elsewhere.
  6. Well... I just took the amp in (one week old) to an authorized service center for repair. I just hope this is going to be a reliable amp for many years to come. I have a hunch that perhaps I should have purchased a Crown model that was American made, or purchased another brand. (this amp is made in China) Go figure. I may very well go with a different brand and research it a bit closer. Thanks for all of your help David. Much appreciated !
  7. I hear only ONE relay "click" after the fan goes through it's "high speed test" mode. A second click does not exist
  8. I'm new here all. Bare with me. I just purchased a new XLS 402D to power my new bass guitar cabinet. When I power the thing down (bridged mono,channel 1 "volume" control down or off) I get a horribly loud pop in my cabinet. I have used 2 CE1000's for the past 3 years for my PA and never had them make ANY kind of noise at shut-down. I get this pop with the preamp down or off also. It sounds like it is being created exclusively by the amp itself. I guess I could unplug the speaker cable prior to shut-down...but that's kind of stupid to have to do this everytime I shut down. Does anybody have any ideas on this? Thanks