2. amps-preamps
  3. 183199-132496

Comparing Phono Pre-Amps

Oh Boy, here I go...

Do you all feel there is a easier way to compare Phono Pre-Amps besides connecting/disconnecting each one?

I have thought about if there is a way to take the output from a TT and send it to 2 Phono Pre-Amps and from there, those 2 pre-amps could be connected to an Integrated and from there, you simply switch back and forth?

I have been looking but have not come across such a device.

From what I have researched, most comments have stated to simply have long listening sessions with both back and forth and I get that but wish there was a ability to switch immediately between two.

I know the thought is doing so would introduce all kinds of unnecessary variables that would ultimately degrade the sound and defeat the whole purpose.

But I guess from a technical standpoint, can it be done?

Thnx

128x128jay73

Showing 2 responses by elliottbnewcombjr

elliottbnewcombjr
5,091 posts
 

Yes, any of those switches, typically old video switches, 1 in, 3 out can be used backwards, 3 in/1 out. 

You still need to solve volume differences.

elliottbnewcombjr
5,091 posts
 

Splitters may not be the ideal connection, but they are good enough to hear differences.

Like/prefer it? keep it? return it? 

friend brought his new tube phono to compare to my tube McIntosh mx110z's phono.

TT to splitter

splitter a. to his new tube phono, then to integrated amp 'AUX'.

splitter b. to my SUT, sut output to mx110z mm phono in/preamp out to integrated amp 'CD'.

switch integrated inputs 'CD' to 'AUX', instant comparison.

NOTE: volume differences might have to be dealt with. In my case, I was able to adjust the mx110z's volume to match the volume of his into AUX. Sometimes it is just a temporary pencil mark.

In my case, 3 arms into/trru SUT with 3 inputs and PASS for MM, we were able to compare MC; MM and MONO MM. I needed to adjust volume for their differences.

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