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Old 20th October 2010, 02:34 AM   #11
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Good choice, the Denon 2900 is one of the greats for audio, and great value. I combed through measurements at Stereo Review to see that the 2900 has superior measured audio performance to 3910, and nearly as good as 5910. The 2900, 5900, and 5910 all have similar Burr Brown DAC, the 2900 just got the early "beta" version.
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Old 25th October 2010, 05:15 AM   #12
d052057 is offline d052057  United States
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Default Denon DVD-2900 mod

Here is one of instructions which is unclear to me how to upgrade power supply.

Replace OP Amps (IC216 and IC21?) with AD8066.
1. Months ago I replaced the two opamps (IC216 and IC21?) on the top of the audio board and the one underneath the board marked "IC213" with AD8620's. You can also use BB OPA627's on browndogs if you prefer a warmer sound. Of course, it all depends on your ears, your system, and your budget. (Note: I have found the AD8620 midrange is too light for my ears, so over the weekend, I am going to try AD8066's which some say provide the detail of the AD8620's and warmth of the BB opa627's.)

Replace Caps (C369, C360, C366, C355, C367, C357, C421) with caps 10uf/200v?
2. I removed all the two-channel output caps from the top of the audio board using a hot iron and soderwick. They would be
C369 and C360 (Blue film caps)
C366, C355, C367, and C357 (4- 2.2uf/50V caps)
C421 and it's mate (2- 220uf/50V caps)

3. I replaced all these caps with 2 - 10uf/200V Auricaps (Actually I used OEM Auricaps from RTI Film Capacitors - High End Audio Capacitors - Mylar Capacitors. I am sure Solens, Audyncaps, Multicaps, Sonicaps, etc... are good and in some cases cheaper equivalents. I soldered the negative leads to the negative pads of C357 and C355. I soldered the postive leads to now shorted C369 and C360 (where the Blue film caps used to be).

Can some one explain this clearly, what location and what Caps will go to?

Thanks.
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