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New AIYIMA MM/MC Phono Preamplifier

What controls do you apply when hearing this difference to ensure it really is your ears and not your eyes or preconceptions?

I own only a couple of ears... :)

And you? How many units does the batch you use for measurement contain?
Don’t tell me you draw your conclusions using just one product…

Happy evangelizing to you too... :)
 
In this case, happy evangelizing!
:)

Thanks - but believe it or not I'm not doing it for fun. I was reluctant to make that post and put it off for a few hours until I felt the repetition made it necessary.
 
Got an AIYIAMA T3pro yesterday.

First impression was good, pleasant build quality.
The version i got is V2 with TL072 at the input.

Sadly to say, the T3pro lacks in high frequency on both channels compared to my other preamps :confused:
There must be something wrong with this device, at 10khz its up to 5dB quieter as for example the ART DJ and others with an AT VM95 ML.

Also, the max. gain (gain and volume fully open) is only 38dB.

Here a random song measured:
RED = ART DJ pre
GREEN = AIYIAMA T3pro
AIYIAMA.JPG
 
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Yes the gain is slightly lower than 39dB, it works best with high output MM, greater than 5mV...

Also AT is not a good match on my side...
No idea about the reason (capacitance maybe), anyway I don't care about the measures for this pricepoint.

About the slight roll off it is there and can be listened, it is a warm sounding unit out of the box, maybe a bit "dry".

I've found improvements in both top end and mid-bass swapping OP Amps, but this is considered a shame... So ignore this comment if you're an OP amp hater... :p

For MM I've found a nice spot using a Jico J44A-7 which has a ~8mV output.
So my suggestion is to look at the DJ/Clubbing carts.

IMG_4731.jpeg


Otherwise use the switches on the base even with MM, and move gain at 9/10 o'clock.
 
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