AT91R

the thin end of the wedge
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mark79
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AT91R

Post by mark79 » 18 Aug 2018 20:00

Hi Everyone: Has anyone tried the AT91R cartridge? It's a .06mil diamond that tracks at 2.00grams. I got one for next to nothing and to my surprise, it actually sounds very good. From what I understand, it is the same body as the AT95E and can also take that stylus plus the AT95EX .03x.07 stylus. I have those two needles but I didn't have the AT95 body. For a conical stylus, it seems to be very good. I still like my Stantons, Pickerings and Shures, but I am actually much impressed with this cartridge. I am still battling with myself (LOL) on what stylus sounds better, conical or elliptical, oh my, such is life. Thank-You very much; Regards; Mark79

Eric Auer
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Re: AT91R

Post by Eric Auer » 18 Aug 2018 21:01

The 91r uses the 3600 body.

And can use all the 3600 compatible styli.

I have not heard a 91r, but have several 3600's and they sound good with both elliptical and conicals.

Eric

mamakasou
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Re: AT91R

Post by mamakasou » 18 Aug 2018 21:21

Hello Mark,

The AT91 is indeed a very well-regarded cartridge.
Do not let its price fool you.
It will stand its ground against cartridges that cost x50 as much.

It has a 0.6mil conical that has excellent performance. That tip make it a versatile pickup that will do well under all conditions. Some actually prefer its tonality against the AT95 elliptical (0.4x0.7mil). It has a slightly warmer character but still tracks anything you'll throw at it. I also prefer that type of richer/warmer sound, when playing music loud. I get tired easily when I listen with more bright cartridges.
I keep those for listening at low volumes through headphones.

Really this cartridge is a testament to engineering perfection at a low cost, by Audio Technica.

mark79
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Re: AT91R

Post by mark79 » 18 Aug 2018 22:23

Dear Eric and mamakasou: Thank you very much for your replies. That's what I thought when I heard it-how did they do that? I looked it up and it sells for $34.00. Some places, it can be found for around $24.00. I am really liking the very warm sound from this cartridge. The fact that it is considered "cheap" is amazing. Audio-Technica seems to know what they're doing. I am getting to the point also, where I'll go elliptical only at low volume with my Sennheiser monitor headphones. When I play through the speakers, I'll go conical. Some people like a lot of "hot" high end. I used to do that years ago with my M91ED, which was a great all around cartridge. But I find that listening to a lot of high end will make you tired very quickly. Not to take away from the M91ED at all, back in those days I would put a lot of high end on the equalizer. Those were the days. Take-Care; Kindest Regards; Mark79

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Re: AT91R

Post by beat_truck » 19 Aug 2018 11:22

mark79 wrote:From what I understand, it is the same body as the AT95E and can also take that stylus plus the AT95EX .03x.07 stylus.
Wrong.

Styli for the AT91/AT3600/CN5625AL and the AT95E are NOT interchangeable. The AT3400 will interchange with the AT95E, though.

You can actually buy a brand new Chinese made AT3600L cartridge with stylus on Ebay for less than $12 shipped. They have a carbon fiber cantilever and .6 mil conical tip. There is a 15+ page thread about them on another forum, and everyone that has bought them has been very impressed with their performance.

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Re: AT91R

Post by BMRR » 21 Aug 2018 16:09

The AT91R is functionally similar to the CN5625AL, which AT discontinued. Both of them use the same AT3600 body, and the styli are pretty much identical -- .6mil spherical diamond on an aluminum cantilever tracking at 2g to 2.5g. The only real difference is the color of the stylus grip: red for the AT91R, yellow for the CN5625AL.

The AT3600L also sounds great, but it does need at least 3g VTF, preferably 3.5g. If your turntable has a low-mass tonearm, the AT91R is a better match. If your turntable has a medium or high-mass arm, by all means choose the AT3600L. It really sings on a heavy arm and, in my personal opinion, sounds a heck of a lot better than the Shure SC35C (which is currently the darling of many people with heavy arms).

I've got a 3600 here and I mounted it in one of my heaviest headshells in order to increase the effective mass of my Technics tonearm. It sounds really good!

chiz
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Re: AT91R

Post by chiz » 21 Aug 2018 18:35

CN5625AL was 0.7 mil I believe.

I've tried both the AT91R and the even cheaper AT91 (yellow grip, carbon fibre reinforced plastic cantilever) and find them both good performers considering the modest cost.

As noted the 91/3600 and 95/3400 family styli are not interchangeable but the generators have similar specs and may even be the same internally.

40733

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Re: AT91R

Post by beat_truck » 21 Aug 2018 20:16

BMRR wrote:The AT91R is functionally similar to the CN5625AL, which AT discontinued. Both of them use the same AT3600 body, and the styli are pretty much identical -- .6mil spherical diamond on an aluminum cantilever tracking at 2g to 2.5g. The only real difference is the color of the stylus grip: red for the AT91R, yellow for the CN5625AL.

The AT3600L also sounds great, but it does need at least 3g VTF, preferably 3.5g. If your turntable has a low-mass tonearm, the AT91R is a better match. If your turntable has a medium or high-mass arm, by all means choose the AT3600L. It really sings on a heavy arm and, in my personal opinion, sounds a heck of a lot better than the Shure SC35C (which is currently the darling of many people with heavy arms).
Chiz is correct. According to Audio Technica's website, the CN5625AL was a .7 mil conical. And that's the main reason I bought mine instead of one of the others in the AT3600 family.

According to the very long thread over on another forum, everyone reports that the new $12 ebay special Chinese made AT3600L tracks well at between 2 and 3 grams. For that price, I need to order one for myself.

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AT91R on Rotel RA12 question

Post by macpvl1973 » 30 Dec 2018 20:00

Hi everybody. I am new to this forum (and this hobby) and I would appreciate some Help. I recently fully refurbished a Dual 1010S (as a home project) which was originally equipped with a ceramic cartridge. After rewiring the tonearm , I bought the new AT91R (red - conical stylus) , mainly based on reviews. It was rather cheap (24 euros) but I did not feel safe to spend more on a old turntable like this. I installed the cartridge following all the rules ( even bought a small scale ) at 1.9 grams. But the sound is awful. Nothing like the warm vinyl sound I remember from my childhood. The bass is huge but mid-range and treble are very thin and muddy. The turntable is properly ground and no hum or buzz is heard if the needle is not touching the groove. I use the integrated phono stage of a Rotel RA-12, a rather accurate and transparent integrated amplifier. This integrated Rotel RA-12 meets my needs for digital listening for now i guess, but listening to vinyl is becoming a habit I do not intend to quit. So my question is : Should I upgrade only the cartridge to this : Ortofon 2M RED (higher voltage output - broader frequency response ) or buy a separate phono pre-amp like Cambridge Audio CP2 or similar. Is the problem the low quality phono stage of my integrated amp or the cheap cartridge ? Thank you all in advance, best wishes for the new year.

Peter Smart
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Re: AT91R

Post by Peter Smart » 30 Dec 2018 21:55

Probably need to be played for some hours, to make the stylus "break in". Is the TT properly placed? Placing affects the sound. The best i to use a shelf.

BMRR
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Re: AT91R

Post by BMRR » 31 Dec 2018 16:34

It shouldn't sound like that, even fresh out of the box. It's either defective (possible but unlikely) or a setup error. Make sure it's wired correctly -- if it's wired out of phase, it'll sound awful -- and since you mentioned rewiring the tonearm, you might want to double check that the tonearm isn't wired out of phase as well.

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Re: AT91R

Post by macpvl1973 » 11 Jan 2019 20:27

Thanks Peter Smart and BMRR. I placed the turntable correctly without improvement. I will consider what BMRR pointed out when I have some spare time and post the results.

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Re: AT91R

Post by smee4 » 12 Jan 2019 00:35

mamakasou wrote:
18 Aug 2018 21:21

It has a 0.6mil conical that has excellent performance. That tip make it a versatile pickup that will do well under all conditions. Some actually prefer its tonality against the AT95 elliptical (0.4x0.7mil). It has a slightly warmer character but still tracks anything you'll throw at it. I also prefer that type of richer/warmer sound, when playing music loud. I get tired easily when I listen with more bright cartridges.
I have quite a few of both the 3600 and 95 style carts, and really, they are quite similar. The AT95 is just a bit more refined and detailed, and the 3600 has a slightly fuller sound.

Oh and the AT95 elliptical changed to 0.3x0.7 mil a little while back.

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