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Dual mono vs double bridged
Dual mono vs double bridged
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Old 23rd October 2018, 10:07 PM   #1
neddy999 is offline neddy999  Ireland
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Default Dual mono vs double bridged

Hi everyone,

I have a nad 3150 integated amplifier which sounds great to my ears and has sufficient power for my Kef LS50's. It has dual power supplies so in effect a dual mono amplifier (?!).

My question is, apart from headroom, would I get an increase in sound quality if I invested in a nad 2150 power amplifier and brigded both amplifiers. Empirically it would be suck it and see I guess, what about theoretically?

Thanks in advance
Nenad
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Old 23rd October 2018, 10:10 PM   #2
neddy999 is offline neddy999  Ireland
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Maybe I can add Kef ls50 nominal impedance is 8 phm though 4 ohm at 200 hz and minimum of 3.2 ohm, so nearer 4 ohm I guess.
Nenad
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Old 23rd October 2018, 10:19 PM   #3
scottjoplin is offline scottjoplin  Wales
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I bridged a couple of amps with very noisy power supply and poor PSRR and the noise largely cancelled.
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Old 24th October 2018, 01:14 PM   #4
Kay Pirinha is offline Kay Pirinha  Germany
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Why did you start two different threads on exactly the same topic?


Best regards!
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Old 25th October 2018, 07:08 AM   #5
Ian Finch is offline Ian Finch  Australia
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Quote:
Originally Posted by neddy999 View Post
I have a nad 3150 integated amplifier which sounds great to my ears and has sufficient power for my Kef LS50's. It has dual power supplies so in effect a dual mono amplifier (?!).

My question is, apart from headroom, would I get an increase in sound quality if I invested in a nad 2150 power amplifier and brigded both amplifiers. Empirically it would be suck it and see I guess, what about theoretically?....
Bridging is going in the wrong direction for low impedance loads. A minimum 3.5R for a nominal 8R speaker is quite normal now, as the defined minimum impedance reference point is generally ignored. More likely, modern speakers, even 8R rated types will use drivers with a compromise of 6R impedance, as do AV multi-box systems which are by far the most common box speaker products out there.

You may be hoping for an audible benefit to using less appropriate speaker impedances but I think that will remain something for your ears (and wallet to explore.
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