The difference between 72db SN and 84db SN is indeed substantial but not atypical for comparing MM to MC gain stages, because the MC gain stage needs to develop much more gain. If for example the MM stage provides 40 db gain and the MC stage provides 60db gain, and assuming the downstream pathway is common to both, then you would expect such a big difference in SN ratios. And even 72db is below (less noisy) than the inherent noise of vinyl. Most spec sheets don’t bother, but SN should really be quoted in negative numbers, like -72db, to indicate that noise level is 72db below the signal level at a given output and frequency (both also almost never specified). In practice one might not notice any difference in audible noise between the MM and MC stages of that phono. But in any case, my main point is that SN and gain are two different things that happen both to be measured in db and are inter-related because more gain usually costs in terms of (lower or reduced) SN ratio.
Denon PMA-A110 Phono Upgrade!
Hello Audiogon Fam,
I have a Denon PMA -A110 which I've had for almost 3 years and I love it. I have upgraded my Turntable and Cartridge so now I am looking to get an external Phono Preamp. The Denon has a high quality built in Phono Stage but I now think this is the weak link in the system. Can anyone recommend a few good Phono Preamps? Mine dosent sound bad but I believe I can get more out a high quality one. I came across the ifi Audio iPhono3 Black Label Phono Preamp for $649 and read good things about it. I'm trying to keep it under $1k. Thank you all for your support🙏
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- 13 posts total
- 13 posts total