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In Reply to: That DL-103R that Tubes sent me posted by OMalley on September 17, 2006 at 15:04:19:
I have not found any roll off in the top end of the 103R and it is much better in this respect than the stock 103. It is detailed and airy but only an occasional coarseness is still detectable when compare with the best. The mid of the 103R is also very open and without any compress in my system. I also have the DL110 on hand for comparison and it is by no means in the same league as the 103R. I think your problems with the 103R is system matching and the Rega arm is not an ideal match for it. A Zeta, FR64FX, AT1010 or AT1503 arm will be more compatible because of their higher mass.
The DL304 on the other hand is a high compliance cartridge and needs a lower mass arm than the Rega, for example, AT1120, SME mk3, Mission 774 or Infinity Black Widow.
Best regards
Follow Ups:
I'm not so adventurous to put a coin or other material on my FR12 previously but when I look into the specs and other properties, DL-103R demands high mass arms to perform at it best. I finally settled for Zeta Black and it matched perfectly well with low compliance DL-103R cart.I don't bother with VTA but I can't say it's not importtant. Anyway, I agree with bjh that the DL-103R body must almost parallel to the record surface. I'm not tune it my self but my friend who done it for me was very good at this and I'm very happay with the result. I never got all the negative attributes that OMalley mention, oh yes, on my system with built-in phono at normal 60dB/100-Ohms loading.
That is, as far as Ed's DB is concerned.
Don't forget that Denon publishes their data at 100Hz. We need the compliance measured at 10Hz.DL-103R: 5cu @ 100Hz = 9cu @ 10Hz.
DL-301 II: 13cu @ 100Hz = 24cu @ 10Hz.
DL-304: 14cu @ 100Hz = 26cu @ 10Hz.The figures at 10Hz are not fact of course but I believe they come pretty close.
Fastener mass = 0.5-1.0g.
Recommended system resonance = 8-12Hz.
RB250 + DL-103R = 11.5Hz system resonance.
RB250 + DL-301 II = 7.8Hz
RB250 + DL-304 = 7Hz.This is all just theory of course...
I should take the added weight off for the 103R?And adding weight for the 301, 304, and 160 would be needed? It did improve the 160.
No, theoretically the reverse. :-) More weight for the 103 and less for 301/304/160. Test it on the tools page.DL-160 compliance @ 10Hz = 18cu.
But in the real world? Who knows? You did get an improvement with adding weight to the DL-160 (moving the system resonance further away from the "perfect" 10Hz) so there's no saying...
You can tweak arm mass and so on, but arms that are meant for low-compliance cartridges will work better with them... the better arms also have better bearings, better anti-resonance design; in the modern ones, better cabling and so on. I'm just pointing out that the Denon is a high-end cartridge despite its price, and deserves the best it can get to show its full performance - rich yes, but even and clean through both frequency extremes.
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