Audio Technica AT ML-180 Cartridge Advice

@ateal great, if you like the ANT150ML stylus on lower inductance AT-ML180 body then you will be blown away buy the quality of the original ATN180ML stylus if you will ever find it, the difference between 150 and 180 is huge (owned both). ATN170ML is also much better that 150 in my opinion. I hope you will find them. My first cart in this series was the AT-ML150 and the sound quality was very good, then i decided to look for higher models (170 and 180). Luckily i got them, even some spares. BTW i have the original AT-ML150 generator as a spare for your ATN150ML stylus (they are made for each other, while the AT-ML180 is not perfect match for your stylus because of the different generator :). The broken ATN170-ML stylus for experiments also included. I wish someone can rebuild this and share the experience. If rebuild version can suprass the AT-ML150 then it worth it. The mid mass tonearm is OK for them. 

Dear @ateal: Good that’s working fine and as you said it will be better with more play hours.

Now, the 150/170 has almost the same stylus tip than 180 and this makes almost no difference per sé, even the 180 is more demanding on its VTA/SRA set up.

The inductance issue that chakster is talking is not a day and nigth difference, those 3 models shares same output level. Compliance is the same and this point is important. So your cartridge is almost a 180 and the only way to compare it vs the original is to have the original and attest what you really are losting with the 180/150 combination you are playing rigth now.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

Dear @ateal: Thank's to your patience you found out that 150, good .

Now, you can make serious quality improvements in what you have: as you can note the cantilever/sttylus holder build material is not exactly the same in the 180 and 150, where the 180 is less resonant and this means lower signal degradation vs the 150. It makes a difference for the better.

So you have the alternative to send both to Northwest for he can make the change in the 150 to the 180 holder or better yet that Northwest takes the cantilever/stylus from the 150 and put in the 180 holder.
Of course that you have to ask Northwest if they can do that work, my take is that they can. Only an opinion.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

Thanks Raul for your helpful comments. Some very good things to consider.

Can I ask a simple question. Apart from the cantilever, stylus and suspension what else is installed in the replacement stylus holder. Is there something electrical, or is all that in the cartridge body. 

The reason I ask is that there is a rectangular shape on the underside of the stylus with a screw, and I wondered if this held something.

Thanks again.

This is the MicroLine tip under microscope:
https://scontent-ams3-1.xx.fbcdn.net/v/t1.0-9/20915345_1832165316801627_5760303121509827871_n.jpg?oh...

I will add more pics from my camera below:

1) This is the MicroLine tip factory mounted on hollow pipe gold plated Boron cantilever of the AT-ML170 cartridge:
https://scontent-ams3-1.xx.fbcdn.net/v/t1.0-9/20139640_1791997270818432_584247051679766313_n.jpg?oh=...

This is the side view of the same ML tip on Boron Cantilever:
https://scontent-ams3-1.xx.fbcdn.net/v/t1.0-9/20476291_1811602778857881_2214966213583186174_n.jpg?oh...

2) The lower model (AT-ML150) has Beryllium cantilever (not Boron) and utilizing different mounting method of the stylus tip (the stylus tip mass is higher). This is how it looks: https://scontent-ams3-1.xx.fbcdn.net/v/t1.0-9/15977210_1531424726875689_1265492799104053173_n.jpg?oh...

Another view on ATN150ML: https://scontent-ams3-1.xx.fbcdn.net/v/t1.0-9/14359084_1375631022455061_9194266573847102555_n.jpg?oh=6b6125d75ae5af1738e155da3114acc2&oe=5A8F0F61

3) And here is a broken ATN170ML stylus/cantilever assembly and AT-ML150 generator: https://scontent-ams3-1.xx.fbcdn.net/v/t1.0-9/22046807_1885755611442597_8339245905224038637_n.jpg?oh...