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HK 330b Amp Section - Impedance/Sensitivity?

J English

J English

Super Member
Does anyone here know the values for the HK 330b amp section's input impedance/sensitivity? I am thinking of trying a passive preamplifier into the 330b, but am not sure of those values.

If I find I like the sound of a passive, I will probably get a dedicated power amp down the line to use with it. Was just going to try this for my "test" phase.
 
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Not sure what your question means. Sign up on hifiengine.com and download a user manual. 330b, one of the most underrated WPC outputs IMO....the true output is closer to 35wpc than it's assigned 19. Very tube(y) sound!
 
The input is on the low side - around 20K ohms. Gain looks around 40 (32 db) but easier to measure than calculate.YMMV.
 
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