Serious Passive Preamp question


I have a Audio Research LS7 Line stage preamp and someone wants to trade me my AR LS7 for a serious passive preamp
Is anyone familiar with this company ?... I was told it retails for $2200.
 My  Amps are Class D wyred 4 sound mono blocks.
Opinions please.
rocky1313
rocky1313


Even though passives are my game, I don’t believe ANY active preamp can better a "properly used" passive for transparency, dynamics, uncoloured sound and extension in both the highs and lows.

Saying that though your AR LS7 is "worth" far more to sell than any passive is (except for one) worth, regardless of which one.

The one I’m talking about is the $20k D’artZeel NHB-18NS as it also uses the same LED/LDR passive system as the one I make does.

Cheers George
I've seen active preamps beat a passive every time. Less coloration, better dynamic impact, more extension. Less sensitivity to interconnect cables.

A lot depends on the active line stage though. Some of them outright suck, and then passive sounds better so when that happens its a bad sign.
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