phonostage

Blog tagged as phonostage

Why Would You Want an MC Head Amp?

You may have noticed that the Muffsy MC Head Amp is on its way. UPDATE: It's already here!

Here's why you might want one for yourself.

07.09.16 03:54 PM - Comment(s)

While we're waiting for the Muffsy MC Head Amp, here's a sneak peek of the new back panel for the B0905 cabinet.

There are a lot of considerations to make when dealing with the very low output from an MC cartridge. Noise and interference should be avoided in all parts of the design, and that's why th...

07.09.16 10:04 AM - Comment(s)

The Muffsy Phono Preamp is, and will continue to be an MM phono stage. Moving magnet and moving coil cartridges require different operational amplifiers, so a combination of MM and MC is not feasible at this size and price point. 

Until now, the only way to use the Muffsy with moving coil cartridges ...

05.09.16 10:03 AM - Comment(s)

The signal to noise ratio (SNR) compares the level of the audio signal to the background noise. An SNR of at least 65 dB is what's needed to have a completely silent phono stage. The Muffsy Phono Preamp's SNR, with OPA2134, comes in at 79.46 dB as shown below.


The measurement of signal to noise ratio...

20.06.16 11:50 PM - Comment(s)

NOTE:

This modification is only intended for the Muffsy Phono Preamp together with the Muffsy Power Supply and Back Panel in the recommended B0905 enclosure. Before you try this, have a look at the other ways of eliminating hum.


Arno just completed building the Muffsy Phono Preamp, and was haunted by...

20.05.16 01:55 PM - Comment(s)