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In Reply to: Thank you to you and Kal posted by 1973shovel on August 25, 2024 at 17:08:13:
> Both my main amp and sub amp have a 10K input impedance, so if the Pre90 can drive a 5K load, that will be one consideration off my mind.
I could be wrong, but I believe the two outputs are individually buffered. Therefore, I don't think you would be connecting both amplifiers in parallel. In other words, each output would be driving a 10k-ohm load separately. However, I can't find anything in the specifications that answers this concern. Therefore, I think the only way you will know whether or not your system is compatible will be to try it, and most dealers allow you to return a product if you're not satisfied. I bought my Topping Pre90 from Amazon, which allows returns.
> I'll have to check the specs on both my phono stage and DAC. If they'll work with the Pre90 then I might order one.
The input impedance of the balanced inputs is rather low at 2k-ohms. However, my FiiO R9 sounds just fine connected to the Topping's balanced inputs.
The input impedance of the unbalanced inputs is 9.9k-ohms, which should work just fine with nearly all components.
Good luck!
John Elison
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Follow Ups
- RE: Thank you to you and Kal - John Elison 17:32:14 08/28/24 (9)
- "I believe the two outputs are individually buffered" - 1973shovel 05:37:57 08/30/24 (8)
- RE: "I believe the two outputs are individually buffered" - John Elison 06:41:39 08/30/24 (7)
- "I would recommend looking for a different preamplifier" - 1973shovel 06:00:57 08/31/24 (6)
- RE: "I would recommend looking for a different preamplifier" - John Elison 06:25:01 08/31/24 (5)
- Thanks John - 1973shovel 14:31:49 08/31/24 (0)
- "Well, you could always do what Kal is doing." - Kal Rubinson 10:25:04 08/31/24 (3)
- "Sometimes, people completely overthink the issues" - 1973shovel 15:52:32 08/31/24 (0)
- RE: "Well, you could always do what Kal is doing." - John Elison 11:12:28 08/31/24 (1)
- Yeah. Do what John is doing. (NT) - Kal Rubinson 14:18:08 08/31/24 (0)
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