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In Reply to: I would say exactly the opposite is true. posted by Garth on August 9, 2006 at 08:26:41:
When I was using a 1:10 ratio step up transformer and preamp with 54 dB total gain the "loudness" or volume was adequate but the dynamics were lacking in comparison with the 1:36 ratio step up transformer.More gain is good! My system does not play "louder" with the additional gain, it plays more "dynamically" at the same volume levels as before.
I hope that paragraph makes sense to someone...
--
Al GTravelin' light; It's the only way to fly - J.J. Cale
Follow Ups:
so boosting the signal with a transformer before getting to the active stage is what you are talking about. I will be using a 1:10 ration that is hardwired on the AU300LC so I may look into upgrading that with the Cinemag's later.At 1:36 you must only have to nudge the volume a tiny bit.
~Slainte,
The OMalley
Even though the 1:36 step up has much more gain, the load presented to the cartridge is close to the cartridge's internal impedance so the Denon's output is roughly halved.My volume knob is very close to the position where it was with a 1:10 transformer when playing at similar SPL's.
--
Al GTravelin' light; It's the only way to fly - J.J. Cale
I did read all the stuff about the Cinemag's recently but copped out on the Denon. It's tuff to get things done in a sane way around this house with all these kids. Soldering in this chaos is nuts, I tell ya.Would increasing resistance dimish dynamics? What I understand you are saying is that increasing resistance increases dynamcis. Impedance is always a rubics cube for me.
~Slainte,
The OMalley
The more loading resistance is increased the more that resistance will cut the output of the cartridge.With a 1:36 step up, the cartridge can be loaded down to it's internal resistance (40 ohms for a Denon Dl-103) but still have the same output level as if it was loaded "lighter" and used less of a step up.
Garth is able to explain this better than I...
--
Al GTravelin' light; It's the only way to fly - J.J. Cale
stats on the Denon SUT says 40ohms so that should take care of load against the carts internal impedance?It will still see 470 ohms coming from the phono preamp set at 470k ohms.
~Slainte,
The OMalley
47K ohms. Denon says 40 ohms as the range of cartridge impedance "they" recommend. But for the Denon 103 they recommend 100 ohms or less.The problem is being only a 1:10 ratio it will become essentially useless if the secondary load were less. If the 103 is optimally loaded with that Denon rannie the stepup ratio is only about 1:5 ...TOTALLY WORTHLESS!
then I will stay as is since it seems that I am stuck with doing that anyway. :-)"They" must realize that most users of this SUT are going into 47k so that this transformer must perform just right that way ... will see.
thanks for your input because that actually make things easier, not having to worry about loading the cart.
... unless I increase gain in the Bugle. Where is that evil laugh coming from?
~Slainte,
The OMalley
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