mc cartridge loading


I currently load an Audio Technica ART9 at 90 ohms, the load 'inherited' from another cartridge, am pleased with the sound but recognize the manufacturer's recommendation that at least 100 ohms be used.  Changing load requires opening the phono-amplifier case, somewhat tedious.   Is increasing the resistance (decreasing the load) worth the effort?
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Showing 1 response by oldschool1948

I have an Ortofon Quintet Black on a Technics 1200G connected to a NAD M12 pre-amp.  This is my first MC cartridge.  I get a very pleasing and musical sound with that combination.  I'm going to eventually buy a tube pre-amp.  I found a great deal on a Audio Alchemy PPA 1 phono preamplifier, so I purchased it.  

I set it up at 200 ohms, which is 10x Ortofon's > 20 ohms minimum.  The sound was way too low as compared to the M12 phone input.  For "normal" listening, I set volume at around -20  to -25 db when using the M12 phone input.  With the PPA 1, I had to set volume to +1.5 db to achieve a comparable sound level.  

So I used 700 ohms and got a much higher sound level at -20, but still not equal to the M12.  Should I be using a SUT with the PPA 1? 

The  PPA 1 produces a good sound, but I don't like having to up the volume level to hear it as I want.  Especially since my streaming music volume is set around -30 to -40, so I have to remember to lower the volume when going from vinyl to streaming.

I don't have that problem with the M12 as I've lowered the streaming gain by -9 db and have the M12 gain set at 0, so I don't get blown out of the water when switching from one the other.  Streaming is still higher, but I don't worry about blowing my speakers.

Any ideas? I'm going to set ohms to 1000 to see what happens to sound level and SQ.  I'll probably end up sending it back. Having said that, is what I'm experiencing "normal?"