riaa

Blog tagged as riaa

Tools for Modifying the Muffsy Phono Preamp

Several people have been in touch lately with questions on how to modify the PCB into something it isn't right now. Popular requests are balanced inputs and/or balanced outputs, and DC servo on the outputs.

16.10.18 03:08 PM - Comment(s)

We've seen how the RIAA filter behaves with low and very low capacitor values. (See all simulation articles here) Now let's have a look at what happens if the capacitor values are higher than the recommended ones.


This is the Muffsy Phono Preamp with capacitor values that are 2.5% higher than specifi...

04.05.16 04:13 PM - Comment(s)

I wanted to know what happened to the Muffsy RIAA compliance if the capacitors were out of spec, and started with a plausible scenario where the capacitors were 3% below their stated values.


This time, lets see what happens if the capacitor values are extremely low. Let's say they're 10% below what ...

18.03.16 09:44 AM - Comment(s)

The RIAA equalization added to vinyl records can and do vary wildly, and you might rightfully say that a phono stage's RIAA compliance doesn't matter too much.


It's still a standard, and it should be one of the considerations when choosing a phono stage.


The Muffsy Phono Preamp uses Wima MKS2 capacito...

09.03.16 12:54 PM - Comment(s)

Measuring the actual Muffsy Phono stage reveals a very good RIAA compliance, with a little extra amplification of the bass.


THIS ARTICLE HAS BEEN UPDATED WITH IMPROVED MEASUREMENTS.


The specifications for the Muffsy Phono Preamp PP-3 states that the RIAA compliance is a miniscule +/-0.025 dB. That's ...

06.10.15 03:25 PM - Comment(s)