Nac 282 + D power amp

I think one reason might be compact size and lower heat output. I doubt if PMC could have produced the active upgrades for their 25i speakers without using class D amps. Same goes for the power amps Linn use if you configure a Selekt box as an all-in-one. Cost, too, probably comes into it.

Is there really a compromise with sound quality? I’ve not done sufficient extensive listening to form a personal view, but I have enough trust in Naim, Linn, PMC etc to believe they wouldn’t have gone down this route if it seriously compromised SQ.

Roger

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Yes, of course I knew you were referring to the Musos. I was being ironic, as I hoped you were in calling them boomboxes.

Roger

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D class amplifiers have hand down on sub woofer and active speakers especially when we talk about bass. For sure martin logans uses d amplification for the bass of new speakers. Might be worth splitting amplification for bass and medium high, with D class for bass and A-B for medium and high?

KEF LS50W use a split arrangement with class D on the LF and class AB on the HF section.

They are used in subs and active speakers because they are small and space is limited. Other options wouldn’t be feasible for the majority of these.

I don’t believe any commonly used hifi amplifier class is “hands down” superior at anything.

I’ve active class D subs and a class D stereo power amp. The class was not even the slightest consideration when buying, and I’ve never thought, “wow, listen to that class D.”

I have compared 332/300/250DR and a Eigentakt based amp on the same LS although not on same day. D class owner literally cried when he listened to the Naim set-up. This is not the comparison you ask for. Bass control is ok with the D class amp but bass frequencis are “dry”. Class D comonents state of the art limits them to specific applications. I agree this the technology to watch in terms of future progress because low power consumption and heat will attract increasingly more interest.

For me, my Class D Linn Selekt DSM Edition Hub, single box system sounds much better than my previous multi box Naim system.

DG…

thanks, this is very interesting experience. I also think there are limits in the sound reproduction, power does not mean capability to reproduce sounds properly.

which naim system did you have?

This was my previous system;

  • Klimax DS/3 (Dynamik) Katalyst
  • NAC 282 / NAPSC
  • NAP 250.2
  • NAP 250 DR
  • SNAXO 242 (T606)
  • SuperCap DR (x2)
  • Headline / NAPSC

The current system is;

Both systems were / are active into Kudos Titan 606 loudspeakers.

Full story is detailed in my “Linn Selekt Journey” thread.

DG…

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