12” FatBoy vs 12” 3D Reference Arm comparison

12” FatBoy vs 12” 3D Reference Arm comparison

Postby Lewisranchmike » Sun Feb 07, 2021 7:49 pm

Hello Guy, I am heavily considering upgrading from 12” 3D Reference Arm to 12” FatBoy unipivot. May I ask the following:

1) Was there a noticeable sound improvement?
2) How does the new counterweight work. Is it a smooth turning counterweight that allows smooth fine tuning?

Very interested

Mike In Austin
Avenger Reference MK1(Stillpoints Ultra 5), Fat Boy Unipivot, VAS Nova Gold, Stillpoints LPI, VPI Ring, Eagle PSU, Roadrunner Tach, Audio Sensibility interconnects, ARC Ref Phono 2SE, ARC Ref 5SE, McIntosh MC252, KimberKable 8TC, Vandersteen 3A Sig
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby Brf » Mon Feb 08, 2021 3:39 pm

I have a Reference 12-3D Uni and a Fatboy 12-Gimbal mounted on the same table. I have a lot of experience with the Uni Fatboy but have not compared it directly to the Reference 12-3D.
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby Lewisranchmike » Mon Feb 08, 2021 10:15 pm

Brf wrote:I have a Reference 12-3D Uni and a Fatboy 12-Gimbal mounted on the same table. I have a lot of experience with the Uni Fatboy but have not compared it directly to the Reference 12-3D.

Hello BRF, May I ask how the micrometer type counterweight works? Does it give very fine tuning of weight? Also May I ask if you perceive FatBoy gimballed is an upgrade over 3D reference ? May I ask your thoughts of the differences?

Best,

Mike in Austin
Avenger Reference MK1(Stillpoints Ultra 5), Fat Boy Unipivot, VAS Nova Gold, Stillpoints LPI, VPI Ring, Eagle PSU, Roadrunner Tach, Audio Sensibility interconnects, ARC Ref Phono 2SE, ARC Ref 5SE, McIntosh MC252, KimberKable 8TC, Vandersteen 3A Sig
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby Brf » Thu Feb 11, 2021 12:30 pm

The Fatboy counter weight adjustment is a pleasure to use, extremely easy to dial in small adjustments.

IME, the Fatboy does everything a touch better than the 12-3DR, especially in the bass region. Inner detail is improved with a better sound stage. Imho, the 12-3DR is more forgiving on poor recordings.

I don’t believe that you will be disappointed with the Fatboy upgrade. The improvements will be noticeable. In addition, the Fatboy combines the best of both worlds, a 3D printed arm wand, and a precision metal bearing housing and end stub.
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby Lewisranchmike » Fri Feb 12, 2021 9:52 pm

Brf wrote:The Fatboy counter weight adjustment is a pleasure to use, extremely easy to dial in small adjustments.

IME, the Fatboy does everything a touch better than the 12-3DR, especially in the bass region. Inner detail is improved with a better sound stage. Imho, the 12-3DR is more forgiving on poor recordings.

I don’t believe that you will be disappointed with the Fatboy upgrade. The improvements will be noticeable. In addition, the Fatboy combines the best of both worlds, a 3D printed arm wand, and a precision metal bearing housing and end stub.

Thx BRF, I can’t wait to get it. On order now with Music Direct:0)

Mike
Avenger Reference MK1(Stillpoints Ultra 5), Fat Boy Unipivot, VAS Nova Gold, Stillpoints LPI, VPI Ring, Eagle PSU, Roadrunner Tach, Audio Sensibility interconnects, ARC Ref Phono 2SE, ARC Ref 5SE, McIntosh MC252, KimberKable 8TC, Vandersteen 3A Sig
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby Brf » Sat Feb 13, 2021 7:12 am

Mike, did you order the Uni or Gimbal?
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby Lewisranchmike » Sat Feb 13, 2021 6:39 pm

Brf wrote:Mike, did you order the Uni or Gimbal?

Hello BRF, I ordered the Uni. Also I am VERY MUCH looking forward to the new micrometer like counter weight. I also understand I need a new arm rest???

Mike in Austin
Avenger Reference MK1(Stillpoints Ultra 5), Fat Boy Unipivot, VAS Nova Gold, Stillpoints LPI, VPI Ring, Eagle PSU, Roadrunner Tach, Audio Sensibility interconnects, ARC Ref Phono 2SE, ARC Ref 5SE, McIntosh MC252, KimberKable 8TC, Vandersteen 3A Sig
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby madrac » Sun Feb 14, 2021 10:20 am

Hi Mike
Congrats on the coming new tonearm. Curious, why unipivot over gimbal? (I'm considering moving from 3d to fatboy)
VPI Classic 1-Fatboy, VTA tower,periphery ring,PE Eagle & RR, HW16.5, VAS NOVA, Soundsmith Paua, Manley Chinook, Bob's SUT, Rogue RP5 & ST100, Sierra Towers w/ RAAL, Rythmik E15HPx2, Audio Sensibility, Blue Jeans ICs, Symposium & Isoacoustics
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby Brf » Sun Feb 14, 2021 11:42 am

Lewisranchmike wrote:
Brf wrote:Mike, did you order the Uni or Gimbal?

Hello BRF, I ordered the Uni. Also I am VERY MUCH looking forward to the new micrometer like counter weight. I also understand I need a new arm rest???

Mike in Austin


Yes, you will need a new arm rest but I think it comes with one. Also, ask your dealer to make sure that your Fatboy comes with the additional counter weight plate that attaches to the main counter weight. This will give you more options with cartridges of varying weights. Don’t forget the optional second pivot, imho, it makes setup so much easier plus the benefit of improved performance.
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Re: 12” FatBoy vs 12” 3D Reference Arm comparison

Postby VinBob » Sun Feb 14, 2021 12:33 pm

Would a Prime be a good platform for a Fatboy upgrade or should I look into a TT upgrade altogether such as the Prime Signature?

Also, are there any good trade-in options as I would not be able to stretch to the full price on a Fatboy of $4k :o Wonder what one would typically get for the 3D 10” arm...?

Cheers,
Vin.
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