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I Mounted a new Denon DL-301II. Resonance measures 7 Hz with TP16 tonearm on Thorens 125 MkII. It sounds good but is sensitive to foot steps on the wood floor.The Thorens is on a heavy piece of furniture. I'm not sure if I should keep the cartridge and try to isolate the turntable from the floor vibrations or start over with a different cartridge.
I know now that the compliance of the Denon is too high for my tonearm. Are there other sonic problems inherent with this low of a resonance?
Follow Ups:
The DL-301mkII is a very high compliance cartridge, but it is also well damped, so even a low resonance frequency is unlikely to provoke the kind of oscillation which is associated with some of the livelier cartridges available today – the Grado prestige series for example.In fact, despite the figures, in my opinion the DL-103 is more prone to oscillating at the resonance frequency than the DL-301mkII, and you’ll probably find that the resonance frequency for the DL-103 is only about 2 Hz higher than what it is for the DL-301mkII.
If your cartridge is not bottoming on warped records, I think that you don't have anything to worry about.
Best regards,
BK
I think I'll sell the Dl-301 and go with a Dl-103, OC9, or a higher end Grado than my Black...which tracks well and sounds good.I'm thinking that if the Dl-301 is this sensitive to footsteps, that there may be other issues with the tracking that I can't percieve. In other words - I won't be getting the best sound out of the cartridge because of the arm mismatch.
Chris
Chris, interested in trading the 301 for a statement platinum? New last weekend, maybe 30 sides now. Just wanted to try the Grado sound, but dont think its for me. email me if you're game.Joe
Hello JoeThe system won't allow emails to you. Email me.
Chris
Are your woofers pumping at a subsonic frequency? Also read van den Hul FAQ #36. Is your bass at all fuzzy- "wolly" as the Brits say? Any tracking problems? If no/no/no, I would forget about it.I have found the Denons I've owned or played with have good damping and are quite tolerant of a range of arm-cart reaonant frequencies, although Denon carts' compliance values tend to be rather low across the board and the resonance is usually too high!
Make sure you have the manufacturer's recommended load resistors. These resistors affect the entire eletromechanical ciruit and have a significant contribution ot the system damping (think of them sucking out a portion of the cart's vibrational energy and wasting it as heat...). I suggest putting the loading resistors inside the headsell, right aross the cart leads, for a variety of reasons. It's a small tweek, costs nothing and in some situations has yielded discrernable positive results, IMHO.
it is the the !st of August!!!!(thought I would try to start something new) .-)
So since you have countless times suggested a load resistor be welded to the cartridge what is the advantage? Just joking about the welding but it is a rather touchy "tweak". Is there seriously a reason to put it there as opposed to a half meter away? Please don't tell me it "damps" better there. Ok but if so then a different value would do the same further away. But then what is it about 0.5 ohm extra resistance by 0.5 meter cable?
The DL-301/II is a fairly high-compliance cartridge. I owned one several years ago. I didn’t realize it was such high-compliance and I mounted it in a SME III with 4.4-g headshell weight installed. This combination had a resonance of 8-Hz and seemed to work okay, so I left it that way. I figure the arm was equivalent to 10-g effective mass with the headshell weight installed.If you want a similar sounding, but lower compliance cartridge, try an OC9ML/II. It should get the resonance up in the neighborhood of 10 to 12-Hz.
The worst problem associated with exciting the resonance is mistracking. If that does not occur, the next worse problem is intermodulation distortion caused by extreme cantilever deflection. Still another problem is woofer-pumping cause by excessive low frequency energy produced by extreme cantilever deflection.
Good luck,
John Elison
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