[D555]

Hello,

Using a newly recorded test MD using the optical out of the D-EJ2000 and optical in of the MZ-1, here are the results:

Sony MZ-1, headphone out, no EQ:

Frequency response, dB: +0.74, -3.50
Noise level, dbA: -81.4
Dynamic range, dbA: 81.4
THD, %: 0.016
Intermodulation, %: 0.107
Stereo crosstalk, dB: -71.1

Frequency response comments:

Exhibits the jaggedness as seen in the MZ-N10. *Roughly* flat from about 15Hz to about 14kHz, then the jagged rolloff begins, becomming about -3.75 db at 15kHz then dropping sharply to -47.5db at 16kHz, -58.25db at 18kHz and stays around that area to 20kHz. In comparison with the MZ-N10, the R-1 has some slightly better response in the subaudible bass and the MZ-N10 has usuable highs 2kHz more than the MZ-1. The MZ-1 did not have the little dip in the upper mid-frequencies like the MZ-N10. Still overall, it would appear that the MZ-1, as a system, is not quite as accurate and I had surmised in an earlier post.

In the other graphs the MZ-N10 generally did better than the MZ-1. The IMD was a bit odd. the MZ-1 did better in the bass region while the MZ-N10 did a bit better in the high frequencies. The MZ-M10 was decidedly better across the spectrum in the stereo crosstalk.

Might try a followup by switching the recorded MD's (MZ-1 in the MZ-N10, and vice versa) and see if there are any items of note.

There it is. In these tests, except for the upper frequency response the "original" held its own OK against the 10th anniversary model.

Best regards,

Paul

 

[Braver]

mmm, interesting. do you have a R50 or a Sharp MT831 to do as well? y'know, the first generation isn't usually the best.

 

[D555]

Hello Braver,

Thanks for the inquiry and response!

Don't have any of those units, I'm afraid, but I do have an MZ-R3 (mid 90's) and an Aiwa AM-F70 (late 90's).

Might run those recorders through the tests soon.

Paul

 

[PodMan]

the original ATRAC v1 did not perform very well especially in the high frequencies (which are the hardest to encode) so it is no surprise that the N10 equipped with the latest ATRAC will be much better at retaining high frequency content. I remember reading that it wasn't until ATRAC v3 (or v4?) that sony expanded high frequency encoding to 18khz. By now, with today's latest ATRAC Type R SP encoder, I would guess that Sony has figured out how to do a completely variable 22khz (when needed or if there is enough bandwidth available) cutoff at encoding. I wonder how a minidisc recorded from the N10 but played on the MZ-1 will perform.