Dave makes really good points, and 8v seems like an awful lot of output for a preamp. The parameter you want to compare, when considering amps, is the input sensitivity. Start looking at different models and see how they vary from the Aragon. If they don't vary much, the issue may be with the output of the JC-2. In any case, I would call Parasound to discuss this. I hear the JC-2 is a very good pre. Sometimes there is an easy adjustment to reduce the output of a pre, but hopefully you can find an amplifier with a higher input sensitivity. Perhaps Parasound can recommend the spec you should be seeking.
Amplifier input tech question
In my current system the volume control can only be turned
up to the 9 o'clock position or so, until the music is too
loud. The components are as follows;
cd- Rotel RCD-990 (transport only)
PS Audio DLIII with Cullen stage 4 mods
pre- Parasound JC 2
amp- Aragon 8008st
spks- KEF reference model 3
I am just starting to do my research for upgrading the
amplifier. And, would like to make certain that I select
an amp or amps that are less sensitive than the Aragon.
I have read about the minimum 10 times impedance difference
between pre-out and amp-in. But there must be more to it,
as the JC 2 output imp is stated as < 60 ohms and the
Aragon is listed as 22k ohms. My guess is that there is also a relationship between the preamp output voltage
and the amout of voltage the amp needs for full output.
Is there a formula I can use for finding a good match?
up to the 9 o'clock position or so, until the music is too
loud. The components are as follows;
cd- Rotel RCD-990 (transport only)
PS Audio DLIII with Cullen stage 4 mods
pre- Parasound JC 2
amp- Aragon 8008st
spks- KEF reference model 3
I am just starting to do my research for upgrading the
amplifier. And, would like to make certain that I select
an amp or amps that are less sensitive than the Aragon.
I have read about the minimum 10 times impedance difference
between pre-out and amp-in. But there must be more to it,
as the JC 2 output imp is stated as < 60 ohms and the
Aragon is listed as 22k ohms. My guess is that there is also a relationship between the preamp output voltage
and the amout of voltage the amp needs for full output.
Is there a formula I can use for finding a good match?
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- 18 posts total
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- 18 posts total