Thorens 125 MkII: MM or MC cartridge? What's diff?

Nice to see someone taking 15 minutes out of their day to explain cartridges like this. Sweet piece of work.

The cartridge you have is the best of the shure V15 series. Don't replace it - but if necessary get a new stylus assembly - make shure it is for that particular series of cartridge. email me for more info if you like....bravo a Sdcampbell..

Thank you for spending your valuable time to teach me the basics involved in tt reproduction of sound. I really appreciate the information as well as the effort you all provided. As far as tone arms go, I believe I have an SME replacement arm. Not sure what model, but the cool guy who sold the Thorens unit assured me he knew what he was doing. I haven't set up the unit yet because I don't have a dustcover, and I don't think my inexpensive stereo rack can support the tt. But my vinyl collection continues to grow, through donations and shopping sprees. Can't wait to set it up. If I put up a WTB for the cover, what are they worth? Sorry to stray from the topic. Thanks again,
Steve

Hi, Steve:

Glad to help. We were all virgins once (some of us a very long time ago, and we may have forgotten how it felt...).

If I were re-writing my post a bit, I would have made the point to say that in an audio system that has an analog front end, there are two sets of transducers (a device which converts energy from one form to another): the phono cartridge (which converts the motion of the cantilever into an electrical current), and the speakers (which convert the electrical/audio signal back into the motion of the cone/panel/ribbon, thereby creating sound waves).

Transducers are the most problematic items in the audio chain, since they are subject to non-linearity and other forms of signal distortion and anomaly. Hence, it should be no surprise that cartridges and speakers have such significant differences from one brand/model to another. Just as people buy speakers that sound best to their ear, so with cartridges...

I mentioned in my first post that the tonearm/cartridge combination has a resonant frequency. This is because the cantilever acts like a spring. The cantilever shaft passes through a suspension system -- think of it like a rubber donut -- and as the cantilever moves up and down, and side to side, it interacts -- like a spring -- with the tonearm.

Let me close by adding that the Thorens turntable line is a very good one. The audiophile community tends to be a bit snobby when it comes to turntable brands, but the Thorens models offer a lot of performance for a reasonable cost -- not to mention some convenient features that many high-end turntables lack (such as easy changes from one speed to another). If you want to buy a dustcover for your turntable, you should be able to get it for $25-40 used.

I have one question for you in return: do you have an entire SME tonearm assembly, or just a replacement arm tube? If the former owner threw in an entire SME tonearm, you may want to seriously consider replacing the stock Thorens arm with the SME, which is much better arm. If you want to discuss this more fully, please let us know which SME tonearm you have.

Enjoy, and good listening to you.

Scott C-

Actually the TP16 arm on a 125 mkII is a great arm. The SME is a good arm also - there is more panache to the SME (probably a type 3) but many prefer the stock arm.