Fidelity Research cartridges
Any FR cartridge experts out there? Raul? Dertonarm? Syntax?
I have had an FR-7 which I bought a while ago. I tried it ever so briefly when I got it on an arm I now recognize as not being able to handle that weight (close, but no cigar). I just now pulled it out for kicks and after getting it adjusted with the big counterweight, I am VERY pleasantly surprised. Actually, I'm feeling kind of bubbly. It does not dig out the utmost in detail, but it just sounds very right.
Are there any other FR carts out there which are real steals if still in good condition? I know the MC-702 and the FR-1Mk2 and Mk3f by name, with good reps being assigned to the Mk3 and the MC-702. Given that the MC-702 and the FR-7 look quite similar, and they were offered at about the same time, what is different? And is the FR-7 just an integrated headshell version of the FR-1Mk3?
I have had an FR-7 which I bought a while ago. I tried it ever so briefly when I got it on an arm I now recognize as not being able to handle that weight (close, but no cigar). I just now pulled it out for kicks and after getting it adjusted with the big counterweight, I am VERY pleasantly surprised. Actually, I'm feeling kind of bubbly. It does not dig out the utmost in detail, but it just sounds very right.
Are there any other FR carts out there which are real steals if still in good condition? I know the MC-702 and the FR-1Mk2 and Mk3f by name, with good reps being assigned to the Mk3 and the MC-702. Given that the MC-702 and the FR-7 look quite similar, and they were offered at about the same time, what is different? And is the FR-7 just an integrated headshell version of the FR-1Mk3?
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- 174 posts total
Currently runnin my Fidelity-Research PMC-3 with zyx cpp-1 (125ohm, additional 26db gain) headamp paired with JLTi 47k MM input with very good result. This compo sound better than another mm phono stage with build-in suts, also better than JLTi relatively high gain MC input. So this god damn zyx pre-preamp is a good device, i have not used it for a long time. The nest device for comparison will be Luxman
8030
silver SUT for low impedance FR-7f. |
The ''paradox'', the more one read the more one forget. The less one read the less one forget... I have read this thread at least 5 time but discovered many valuable contribution by my present reading. I obviously forget what Dertonarm, Carr and other has to say. I hope that chakster will be as impressed with his FR-7f as I was with my first FR-7. |
Raul is right, the FR-7Fc has 0.65mm conical stylus tip according to the answer from the two japanese sellers i’ve been chatted with. Now i am a proud owner of the fully original Fidelity-Research FR-7fz (LineContact tip), thanks @nandric who motivated me to buy it and @syntax who helped me with some info too. It’s hard to imagine, but i bought it from the local guy in my town and the price was nice (i had to be quick). Now i’m trying to find documentations for this model to make sure about the specs. There is a link with the specs, i hope this is correct specs. Fidelity-Research FR-7fz specs: ■ Price in 1984 was 80,000 yen ■ Power generation method: MC type ■ Output voltage: 0.24 mV (5 cm / sec 45 °) ■ Needle pressure: 2.0 ~ 3.0g ■ Load resistance: 5 Ω ■ Playback frequency: 10 - 45,000 Hz ■ Channel separation: 20 dB / 1 kHz ■ Channel balance: 1 dB / 1 kHz ■ Compliance: 7 × 10 - 6 cm / dyne ■ Tip: contact type ■ Weight: 30g ■ Exchange needle unit replacement: (60,000 yen) ■ Release: 1984 ■ End of sale: 1989 ■ Shell integrated type. --------------------------------------------------------------------- and for comparison Fidelity-Research FR-7f specs: ■ Price in 1980 was 77,000 yen ■ Power generation method: MC type cartridge ■ Output voltage: 0.15 mV (3.54 cm / sec., 45 °) ■ Output voltage: 0.2 mV (5 cm / sec., 45 °) ■ Output power: 2 × 10 -8 W (5 cm / sec 45 °) ■ Needle pressure: 2 g to 3 g ■ Load impedance: 3 Ω ■ Coil impedance: 2 Ω ■ Playback frequency: 10 Hz to 45 kHz ■ Channel separation: 28 dB (1 kHz) ■ Channel balance: 1 dB (1 kHz) ■ Compliance: 7 × 10 -6 cm / dyne (100 Hz, 20 ° C.) ■ Tip: 0.15 mm square Refined contact, Solid Diamond needle ■ Weight: 30 g ■ Exchange needle unit replacement: (¥ 54,000) |
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