Yamaha DSP-Z9. Стоит покупать???

простите, откуда такая инфа? можно процитировать аудиохоликс.ком /инетовский рупор ямахи/

Yamaha YPAO Operational Details

Operation Frequency: 63Hz - 16kHz 1/3 Octave resolution
Qfactor: .5 - 10

Level: -20dB to +6dB +/-.5dB increments

Frequency Bands: 10 bands per channel, 2 sub bands for a whopping total of 94 bands!

еще там же комментарии

Alternatively, a point to consider is that some room correction systems actually do address speaker non-linearities as well as room interaction affects. The problem is that most systems are not able to distinguish between the non-linearities of the speaker versus the non-linearities induced by the room. In some cases in may not really matter. For instance, in the bass frequencies smoothing out the response may involve changing phase and gain at certain frequencies. As long as the correction is made for the listening position we probably don't care how much of the problem is speaker or room related. For that matter, I can understand why the Yamaha YPAO system does not attempt correction at very low frequencies. It would take much more reserve power than the receiver is capable of delivering. In this respect limiting the correction to a moderately low frequency is understandable and in fact quite necessary. Of course that doesn't change the fact that we would all like compensation down to the very lowest frequencies. Practically speaking Yamaha could NOT put a correction filter on the LFE output because the power necessary for correction would way overtax most subwoofers (amplifier and driver excursion). It may however behoove Yamaha to introduce their own active servo subwoofer integrating low frequency room correction with a system much like many of Velodyne's Digital Series latest product offerings. A system that initially measures near field power response of the speaker as well as impulse response and then takes into consideration a measurement which showed room decay time would probably make for an even more accurate correction system. Now if only a manufacturer would build such a system affordably

http://www.audioholics.com/productreviews/avhardware/Yamaha_RX-Z9p4.php

примите поздравления от единомышленника))) у меня самого с отдельным оконечником - и доволен результатом

на 0.

сравните схемы сами:

9-ка - http://archive.espec.ws/server2/Unsorted/YAMAHA%20full%20Service%20Manuals/Amplif­ier/RX-Z9,%20DSP-Z9/DSPZ9.pdf.html

и 4600-ка --- http://archive.espec.ws/server2/Unsorted/YAMAHA%20full%20Service%20Manuals/Amplif­ier/RX-V4600,%20DSP-AX4600/RX-V4600.pdf.html

Лёха
НЕ ТРАВМИРУЙ ЛЮДЕЙ.))