I will measure the overhauled Trio KA-7500 to check its performance. You will experience a blind test program in which you will distinguish between the sound of this amplifier and the original sound. Does the amplifier's sound exist? Is it just an impression of appearance? If you are confident in your ears, please give it a try.
**Example answers**
A 1〇 2〇 3× 4× 5〇 6〇 7× 8× 9〇 10〇 11× 12× (〇=amp sound)
B 12× 23〇 34× 56× 67〇 78× 910× 1011〇 1112× (〇=sound has changed)
The "12" in B means the change between the first and second songs. If you answered A, you do not need to answer B.
**Previous video**
https://youtu.be/JGxeHdz4AWU
**Recommended purchase location**
Sale of maintained products (please forgive us if they are sold out)
https://shop.souzouno-yakata.com/category/item/restore/
**Table of contents**
00:00 Intro
00:27 Specifications
01:25 Measurement results
03:22 Listening (blind test)
07:16 Conclusion of KA-7500
#Trio #Blindtest
**Answers to listening questions**
A
1〇 2× 3× 4〇 5〇 6〇 7× 8× 9× 10〇 11× 12〇
B
12〇 23× 34〇 56× 67〇 78× 910〇1011〇 1112〇
The passing grade for being able to distinguish between the two is, A: 9 or more correct answers, B: 7 or more correct answers.