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Author Topic: Amplifier suitable for RCF LF21N451  (Read 5814 times)

Ivan Beaver

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Re: Amplifier suitable for RCF LF21N451
« Reply #10 on: January 11, 2015, 09:55:23 am »

Mac's question was specifically about the assertion that _bridging_ led to more "cone control".
Bridging actually gives less "cone control".

The damping factor goes in half-because the two output stages are in series with each other-so the internal resistance is double.

Since Damping factor is the ratio of output impedance to load impedance-when you double the output impedance (and keep the load impedance the same) the damping factor is half of that of a single channel.

But of course in reality, the damping factor alone is usually swamped by the actual resistance of the speaker connector and the wire hooking the speaker up.

But most people don't want to believe that-and get hung up on a "simple number" that is only PART of the overall equation in the "sound game".
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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Richard Turner

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Re: Amplifier suitable for RCF LF21N451
« Reply #11 on: January 11, 2015, 11:01:39 am »

Back to the original question

25 years ago this would have been your solution

http://www.crownaudio.com/media/pdf/legacy/k10684.pdf

As for today something from most any manufacturers PRO line of amplifier should get the job done. Consumer/commercial/musical instrument/utility/call it what you will/ grade amp will likely leave you wondering why the system feels dull.

If crown is your brand and you are not needing onboard processing look at the macrotech i series
The XLS had been their budget series for several generations.
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Looking at retiring. Local PA market has shrank to 2 guys with guitars and bose l1 compacts or expecting full line array and 16 movers on stage for $300... no middle left going back to event DJ stuff, half the work for twice the pay.

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Re: Amplifier suitable for RCF LF21N451
« Reply #11 on: January 11, 2015, 11:01:39 am »


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