2. analog
  3. 153438-484

Best tonerarm match for Acutex M320 III STR cartridge

I have lately been having feedback problems with using the bespoken Acutex cartridge in my Dynavector 501 arm. It sounds spectacular until the feedback sets in.Usable information on what tonearm might be a good (or bad), match is not easily found. The tonearm is mounted on my heavy plinth, with my Garrard 401 'table. It sits on a wall mount stand, Brightstar BigRock 2 sandbox, with Edensound large brass footers, that are six pounds each. 

My phono stage is a Modwright SWP 9.0, that has a resistor installed to cut low frequencies. One other factor is a 15" subwoofer that is about 10 feet away, that might be a factor.

Any information would be greatly appreciated.

Thanks, and regards,
Dan
Ag insider logo xs@2xislandmandan
uberwaltz's avatar
uberwaltz
13,381 posts
 
Dan
I do not have the 320 str but do have the 312 str.
I have used this very successfully on my Garrard 401 with a Micro Seiki ma505ls arm with zero issues.
I have two 10" subs probably both approx 9 ft from the TT.

I know there are some very nice examples of the ma505 for sale but unsure if you are looking for new tonearm suggestions or finding a cure for present setup.
Ag insider logo xs@2x
rauliruegas
13,050 posts
 
Dear @islandmandan : Great cartridge that I own too. These two alternatives are not only better match than your 501 but second to none with that Acutex:

https://www.ebay.es/itm/133247557740

https://www.ebay.es/itm/Audio-Technica-AT-1100-Straight-Tonearm-Arm/254435225675?_trkparms=aid%3D555021%26algo%3DPL.SIMRVI%26ao%3D1%26asc%3D20190711100440%26meid%3D44b55a3062134278adc0a7154cee034f%26pid%3D100752%26rk%3D1%26rkt%3D11%26mehot%3Dpf%26sd%3D133247557740%26itm%3D254435225675%26pmt%3D1%26noa%3D0%26pg%3D2047675&_trksid=p2047675.c100752.m1982

I owned both tonearms. 


Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
Ag insider logo xs@2x
islandmandan OP
1,260 posts
 
Raul, Uberwaltz, thanks for your replies. I'm not looking to replace my tonearm. I really enjoy having the Dynavector 501, and also, it's not feasible to mount another tonearm, as there's not enough acreage on my plinth.

So yes, I'm looking for a way to use my current arm with the M320 III STR. I have found it to be a phenomenal cartridge. What characteristics in a tonearm would be ideal, and if there is a mismatch, is there a way around it?

Ubertwaltz, by the way, I have ordered Slaw's My Mat. Maybe that might help, as I use only a TTW copper plate without a mat. The Acutex is the only cartridge I've had a feedback problem with.

Thanks and regards,
Dan
uberwaltz's avatar
uberwaltz
13,381 posts
 
Dan
You may find the MyMat helps, not sure as never had a feedback issue.
I assume at just 1mm thick you will be placing this on top of the copper plate.

Curious as to the statement  " sounds spectacular until feedback sets in"

Is it at a certain frequency or pitch that it starts or purely volume level dependant?
More to discover