I've seen both Crown and QSC amps go down in p.a. racks before. It can happen to any amp brand. Yes both companies have made some pretty good, to great power amps in their history, and still do so. Never have seen a Peavey power amp go down though.
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Crown Poweramps - Overrated?
- Thread starter bellis1
- Start date
So, I was looking into the Crown xti-1000's and it says "1400 watts if bridged Mono @ 4ohms." If I used this power amp to power ONLY my SWR preamp, would it be capable of running 1400 watts? I'm only running through one 8x10 SWR cabinet.
- Feb 16, 2008
- 21,240
- 23,633
- Disclosures
- John K Custom Basses
- Feb 16, 2008
- 21,240
- 23,633
- Disclosures
- John K Custom Basses
you use a four conductor speakon connector that's wired for bridged mode ( +1 & +2 on the amp's channel 1 output to +1 & -1 on the cab's input), then you use the xti's dsp and set it to bridged mode and use just channel one's input.
I did.
I tried an XLS2500 with my Alembic F-2B and Acme speakers, and the combination was pretty inadequate. Between the F-2B's unbalanced output and the Acme's low effeciency, it just didn't work well at all with the XLS2500.
Never have seen a Peavey power amp go down though.
Reliable, yes but it's happened, trust me!Peavey is like the Dodge Grand Caravan of amps
. They have failures, but they've made so many it's noticeable as a tech, less noticeable as a consumer.That was English.
You'll need to read the manual for a better explanation of running it bridged than that.
I wouldn't say better... Maybe more detailed... The even less wordy version follows...
Bridged mode: Wire the speaker for bridged mode; select bridged mode on input.
If all else fails,"Read the instructions".
It's pretty much the same for every piece of equipment in the world. Snowblower works the same way.
BOB
Bridged mode: Wire the speaker for bridged mode; select bridged mode on input.
If all else fails,"Read the instructions".
It's pretty much the same for every piece of equipment in the world. Snowblower works the same way.
BOB
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Still my favorite PA amp. I have worked with at least a dozen of these amps since 95 and I have never had a failure.
Still my favorite PA amp. I have worked with at least a dozen of these amps since 95 and I have never had a failure.
So when you buy a normal four conductor speakon cable off the shelf, you have to rewire it to use it for bridging any power amp, or is it just the Crowns ?
There doesn't seem to be any standard with Speakons. Probably because they convert so easily.
As far as failure rate with any of this level of pro-sumer gear. it doesn't matter if it is Crown or anybody else.
If you are going to fill a PA rack with a dozen of them, you better have 1 for a backup. If you are going to have one in your Bass gear rack, you better be carrying a backup amp of some type.
It doesn't matter what kind of gear it is, there's always a chance of failure. The more of them you have in a system the higher the chance of one failing.
I can also say, in 40 years of being around this stuff, I have had ZERO failures. That doesn't mean I haven't done repairs etc. But I have NEVER, knock on wood been let down by on of my pieces of gear.
NOW, this doen't mean I don't come prepared! BOB
If you are going to fill a PA rack with a dozen of them, you better have 1 for a backup. If you are going to have one in your Bass gear rack, you better be carrying a backup amp of some type.
It doesn't matter what kind of gear it is, there's always a chance of failure. The more of them you have in a system the higher the chance of one failing.
I can also say, in 40 years of being around this stuff, I have had ZERO failures. That doesn't mean I haven't done repairs etc. But I have NEVER, knock on wood been let down by on of my pieces of gear.
NOW, this doen't mean I don't come prepared! BOB
I have an SWR 8x10. I haven't seen a "bridged mode" on the cabinet. Or are you talking about "bridged mode" on the power amp it self? However, I can bi-amp it. It has two different inputs. Does that make any difference?
Or are you saying- I have to get inside of my cabinet, change the wiring, etc?
Cabinets are not bridged, amplifiers are. You won't need to rewire your cabinet.
The SWR Megoliath 8x10 has two inputs, but as you say, they are for biamp/stereo operation, not bridging. So, you'll want to bridge the amp (read the manual), and then wire the cab properly. With the Megoliath, I think you need to run a speaker cable from the amp into the top section, then run a jumper from the top section output to the bottom section input.
I think you could also run the power amp stereo, and power the top part of the 8x10 with the left channel and the bottom part with the right.
Do you have a manual for your amplifier?
Do you know what Mono-Bridged or Bridged or Bridged Mode means?
These are pretty basic terms, it means taking the two amplifiers inside the unit and "Hooking" them together so the two amplifiers make one twice as big larger amp.
Seriously you're going to need to read up on this in the manual as nobody is going to write a manual here on this thread for you.
1. You wire a speaker cable that goes between the amp and the cab that is wired as a bridge cable. This takes different pin outs on the amp end. See manual.
2. In the amp setup you select MONO-BRIDGED or whatever they call that mode on the Crowns. See manual for location.
BOB
