How Do I Connect Two Preamps?

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I've used the SW4 switcher for phono stages (I have about a dozen) and it worked pretty good.....I did discover the switcher maybe taking something away or even may be adding something to the flavor, it wasn't necessarily a bad thing but slightly different from going direct into the preamp.....I finally moved it over to my headphone system and happy with it there. You may find going through additional switches, connectors, a second pair of IC's, etc. may alter the sound on crytical components as I did......over all the Goldpoint switchers are nice and well built.