Q: Is Z1R on the same level as the legendary Qualia 010?
A: Yes.
Interviewer's note: I couldn't believe this so I double checked. Z1R is on the SAME RANK with Qualia 010.
Q: Which is better, Z1R or Qualia 010?
A: Well, although I designed Qualia 010, and Z1R is designed by my protégé, I think Z1R is the better headphone. This headphone has Sony's latest and best research and technology put into it. You can't compare the tools and research environment nowadays to 20 years ago.
Interviewer's note to self: Are you sure you're not hyping this too much?
Q: Why not announce this with the MDR-Z7?
A: Past market researches indicate consumers are not very interested in expensive headphones, therefore MDR-Z7 was the flagship model. Of course, Z7 utilized a lot of new technologies and is very competitive in its market segment.
Q: Can you talk about the difference behind the thinking of Z7 and Z1R?
A: Z7 is focused on listening to "live music". (Hard to understand here, maybe he means to feel the air) Z1R is designed to let you feel all the music (lit. let you feel all the breath of music). There were many compromises made on the Z7 due to cost whereas there's none on the Z1R. We also ran lots of calculations and researches for a long time and Z1R is the result of it.
Q: Why the 120kHz frequency response? Isn't it way above audible frequency? Many people say this is useless.
A: Higher frequency response means higher resolution to micro-sounds. Ultrasonic frequencies also interferes with audible frequencies and result in audible sounds. Higher frequency response also means faster transient response, therefore timing of the sound will be very accurate. Since Inter-aural Time Difference (ITD) is an important sound cue for human hearing, precise and accurate timing of sound delivery is paramount. To achieve this level of accuracy and precision you need ultra-high sensitivity to achieve milisecond or even microsecond levels of precision. Headphones with this level of precision naturally has ultra-high frequency response. Therefore, in a hi-end system, ultra-high frequency response is a must.
Interviewer's note: Mr.Tsunoda talks like an engineer. All the causal relationships are explained clearly and basically answered all the questions as far as I can understand.
Q: Do you know Tomohiro Matsuo's MDR-EX1000 is extremely popular?
A: Yes.
Q: A lot of manufacturers are pushing high-end dynamic IEMs. A lot of people are expecting Sony launch a successor to the EX1000.
A: Noted. I'll try to rush the related researches. (Mr. Tsunoda whipped out his notebook and wrote down this information)