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snakeybyrne's picture
Last seen: 1 month 2 weeks ago
Joined: Feb 14 2011 - 12:14pm
Tube pre solid State power impedance issues

Anybody got suggestions on a Tube pre to match my soon to be delivered Electocompaniet Nemo's. They will be running B&W 801d's from a Orbe TT origin Live tonearm and Lyra Delos cart. I am after a more engaging sound, not fatiguing. Warm but with enough detail and transparency to be able to hear right into the recording. Must be able to be comfortable with a wide range of genres, expressly Classical and Jazz. What Comes to mind are preamps from PrimaLuna, Cary etc.

Any thoughts/suggestions would be much appreciated.

jgossman's picture
Last seen: 1 week 5 days ago
Joined: Aug 18 2011 - 6:21am
This is an old post...

But I think it's worth a bump. It's not going to be a problem. There is some issue with these combinations being bass shy, but that's usually because the designer uses too high a value coupling cap on the output. This leaves a tube preamp sounding more detailed while still sounding pleasant because it will sound "solid state" without the edge of some bright solid state gear. This is usually easy to get around, see how much DC is on the output at the input lead of the coupling cap and if it isn't more than a few volts, look for an input cap on the amp. If the amp is capacitor coupled, get rid of the output cap on the preamp. Just be ready to put it back in when you sell it. Caps are a high pass filter, that's why many of the most detailed monitors just have one cap on the tweeter.

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