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About deltad2

  1. Oh boy, where to start? Fifteen Ampere outlets are so Seventies! The NEC (National Electrical Code) no longer allows outlets to be placed on 15 ampere circuits. Fifteen ampere circuits are reserved for residential lighting circuits. I'm not even sure they're permitted in commercial environments anymore. If the facility has old wiring you may of course still run into 15A outlets. While your idea (multiple plugs) is novel and seemingly common sense, (Hey why not use two garden hoses to fill the pool more quickly?) electricity isn't water. If you used two outlets, what guarantee do you have you aren't in the same circuit? You'd end up with no more capability that you started with. If you end up on a different circuit you better be on the same phase or you end up with a direct short. BANG! When you plug it into another phase (or the other side of a 240/120 circuit). I've lost the corner off some screw drivers when I stuck 'em places I shouldn't have. The amp you purchased is very efficient. If you do a little bit of checking you should be able to find a 20A circuit and that will give you most of your amp's capability. Remember too, if the amp is only loaded to 8 ohms a side, it will not draw enough to pop a 20A breaker. There's a table on p 18 of your manual. Whats more, music isn't a pure sine wave. Unless the music is highly compressed and uniformly loud, it doesn't typically draw as much as the full capability of the amplifier or as much as you might think. If you're from the make their ears bleed school of music though, you'll need to find an electrician to work with you on this. Good luck
  2. Recently an unfamiliar amplifier / speaker configuration was brought to my attention. I don't see it doing any harm (other than being difficult to determine the effective load) but conversely is there any functional advantage? The configuration involves the connection of a mono “stack”. Two speakers are connected across the conventional outputs #1 and #2 except the load on #2 is reversed in polarity. The third speaker is connected as a Bridge Tied Load. Finally, the amplifier is operated in bridge mode. Speaker #3 will be (theoretically) driven 6db harder than conventionally connected speaker #1 & 2. All cones move in phase. It was claimed the load “seen” by the amplifier was 4 ohms but my calculation is the load is effectively 2.66 ohms on either side of the amplifier. Here is the diagram: Please note that although the diagram is marked "maximum load 4 ohms" my calculations indicate the load is effectively 2.66 ohms a side - all speaker loads are 8 ohms each. Although I can't see the utility of the configuration that doesn't mean there isn't any. I'd prefer to avoid being so arrogant as to disregard this out of hand. Are there any old-timers that have come across this configuration? Does Crown Staff have a position in regard to function, operation and warranty of their amplifiers operated with normal and bridge tied loads at the same time? Explanation of the whys is greatly appreciated as I've spent considerable time looking high and low and found no information on topic. - Bob Haggerty
  3. Admin, please remove double post
  4. Mr. Glass, Per your instructions: 1) Display Readout: FW _1. _0. _8. (Underscores denote blank readout digit/group) 2) Only Band Manager was loaded / in use 3) Original install of Band Manager was deleted. New copy of Band Manager has been installed. Status is the same. Band Manager recognizes newer XTI 4000, does not recognize older XTI 2000. Please provide low level hex loader to update XTI 2000 firmware. Thank you for your assistance.
  5. Once again David, thanks for your prompt reply. Per your above instructions, here are the results: 1) It would appear that firmware might never have been updated. Display Readout: FW _1. _0. _8. (Underscores denote blank readout digit/group) 2) Have read many posts regarding Band & Architect, know both simultaneously = BAD. 3) Install of Band Manager is recent download but will check next time the computer is accessible. Since item 1 seems to be earlier than the version required. Please send magic loader program at your earliest convenience. I assume my e-mail is on record. Thanks again for your assistance.
  6. The USB port's purpose is to set up the Digital Signal Processing (DSP) features of the Amplifier using the Band Manager or System Architect software. It will also allow monitoring of the amplifier's operating parameters in real time. Although it might seem silly not to allow the functionality you desire, how would you control the amplifier? Normally control of volume and tone is done in a preamp/control amp/mixer upstream of the power amp. If you inserted the [digital] signal at that point, the mixer would have no control. Hope that helps.
  7. Are you running the latest firmware. Band manager will only recognise amplifiers that use System Architect 1.90 firmware. You also cannot use band manager and system architect at the same time - only one or the other at once. That may be a good question but you are a smarter man than I am if you can tell me how to update the software when it (the hardware) isn't recognized in the first place. I too thought that Robson but then gave myself a self imposed, "DOH!" ala Homer Simson.
  8. XTI 2000 question (2 parts) Part 1 (troubleshooting): I currently have an XTI 2000 and 4000 sharing an SKB box. Both are connected to a laptop running Band Manager with USB cables. The 2000 is not recognized by Band Manager and will not come up on the software. To confirm malfunction I've swapped the USB (amplifier) end of the cables going to both amps. Hit the advanced tab on Band Manager > Scan For Devices and only the 4000 is recognized once again. Is this a confirmed ride to Elkhart or are there any other checks? Part 2 (warranty repair): If there is boiler plate or recent posts regarding this topic just point me in the right direction. Is there any preference (mine or yours) for Regional Service Centers or factory service ? I live in Sacramento so Rainbow is close by. Lastly, what is the typical Elkhart factory time frame for turnaround? In the future I'll hope for the best but prepare for the worst. Its nice to know how long things take. Lastly, the XTI 2000 has a May 23, 2006 manufacture date so I assume there will be no problem despite being the second owner.
  9. This is not a common problem with the CP660 and we have had no known issues like this that anyone can recall. As for how may G's of force it takes... that is unknown as we don't have to meet military or aerospace standards. However we do drop tests as well as shaker table testing of products during development and the CP660 design passed those tests. I can say we have seen many strange things that have happend to amplifiers, of all models, over the years that have happened in transit. We even had one that had the fork of a fork lift put into and was still delivered to the cutomer by the freight carrier. I would first contact the freight carrier and file a damage claim and then contact the dealer and see what their replacement policy might be. Thank you for your very quick reply. My question about how many G's was a little bit of sarcasm directed not at Crown so much as the apes that handled this amp. The point being I would not want to have to try to pop that transformer out of that case with implements of of destruction, hammers, prybars etc. I really didn't think that could happen often if at all. Mr. Glass, thanks for the advice and your immediate response.
  10. This is most likely an old story, yes E-Bay. I just ordered, "won", whatever, a supposedly brand new - it looks unused, CP660. I have two of these already and know they're pretty well built. The CP660 was shipped in the original packing, in the original box. The power transformer supports (all four) have broken off. That big piece of heavy iron is wacking away at the innards. QUESTION: In Crown's experience (staff) have you had many (any?) experience with this happening before? Have your dealers received many (any?) damaged (in this way) CP660s shipped by UPS? It looks almost impossible to throw that heavy box hard enough to damage the amplifier which looks pristine, not a scratch. The only anomaly I can find is two of the screws nearest the power transformer, holding down the main circuit board are not driven home. I can tell by looking at it from the bottom of the case toward the threaded end of the screw. All the other screws look flush. The threaded inserts into which the screws are threaded, holding down the transformer have failed, just four round holes measuring a little under 1/4" where the inserts used to be. So Mr. Crown International, how many G's lateral acceleration do you have to put on these things to bust off the transformer? Is this a common occurrence? Thanks for your assistance.