t_bone started the thread ''Fidelity reasearch carts'' in 2009.
(see FR-7 on the net) . In the discussion JCarr recomended PMC 3
while his own preference was the ''fz'' and the ''f''. Does anyone know
what happened with t_bone?
Who owns/owned a Fidelity Research FR1 MK3F & what is similar but better
Yes, this is a LINK to t_bone's Fidelity Reasearch thread. And this is what J Carr said: "The PMC-3 is far less popular than the FR-1 or 7, but was influenced by the FR-7's thinking, and is certainly worth searching out." - J.Carr FR also had quite interesting MM designs. I'm not too fond of the electrical characteristics of most MMs (nor how they sound), but the low-inductance FR-5E is a notable exception." - J.Carr |
Here and elsewhere the question has been asked what is the exact difference between FR7f and FR7fz. As far as I can detect with my fairly basic magnifier, they have the same cantilever and the same stylus, called 'refined line contact'. It is documented that the specs are different: FR7fz has higher output (0.24 mV versus 0.2 mV) and higher impedance (5 ohm versus 3 ohm) than FR7f (and basic FR7). While the reason for this difference is unclear, most users who have compared them have a preference for the FR7fz. Myself included, although I must say the MC702 comes really really close. In corona lockdown you start doing weird things, so I did a close inspection of all my cartridges. And whaddayouknow? I'd swear I can see that the FR7fz has silver coils, instead of copper as in the case of FR7f (and MC702). I remember reading somewhere that the first batch of the original FR7 had silver coils. So perhaps Ikeda revisited the initial model with the FR7fz, incorporating some of the design improvements he made along the way. A final statement of sorts, 'Z' being the last letter of the alphabet. But 'Z' is also the first letter of 'zilver', the Dutch word for silver. Now why didn't I think of that before? 😂 |
Interesting @edgewear What’s the hype about 702 by the way ? I never tried this model, but looking at the specs for the rest of FR-7 HERE and comparing to the specs from my the scan of the FR catalog i see there is not difference between 702 and FR-7f **Specs for Fidelity-Research MC-702: Output: 0.2 mV Playback frequency response: 10 - 45 000 Hz Channel separation is better than 28db Channel balance: 1dB max Coil Impedance: 2 Ohm Load Impedance: 3 Ohm or higher Tracking weight: 2-3g (optimal 2.5g) Stylus shape: Refined Contact type solid diamond Dynamic Compliance: 7cu @ 100Hz Weight 29g P.S. there is no 702 in the Japanese catalog, but there is a 702 in English (export) catalog. Was it just FR-7f branded FR-702 for export sales outside of Japan ? |
Dear chakster, I wouldn’t say there’s a hype about the MC702, it’s the least know member of the FR7 family (it even changed its name). It may have been a rebadged FR7f for export purposes, which wasn’t an uncommon practice. Ikeda himself did something similar with the Ikeda 9, as the Rex and the one with the Japanese characters (called Kiwami I believe) apparently were identical. Whatever the case, I can directly compare it with FR7f and while the specs and stylus are identical, they definitely do not sound the same. I’d say the MC702 is slightly tailored towards a more open and detailed sonic presentation. Perhaps in an attempt to bring it closer to the generally accepted ’modern’ sound of MC’s, which has sometimes been accused of having a deliberate (and artificial) treble rise to create the illusion of hyper detail and transparency. But there is nothing artificial about the MC702 sound and I would describe it as a slightly more refined version of the FR7f. Some folks have also suggested that the MC702 has a shorter cantilever, but I’m not so sure about that. In any case it hits the ’dots’ on the Feickert exactly like the other FR7 versions, without changing the position of the FR64s. |