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paul packer paul packer is offline
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Default AMPLIFIER tweak,what parts to replaces?

On Sun, 25 Mar 2007 15:42:09 +1000, "Trevor Wilson"
wrote:


"paul packer" wrote in message
...
On Sat, 24 Mar 2007 12:31:23 +1100, "Trevor Wilson"
wrote:


wrote in message
groups.com...
hi

i have a YAMAHA RX-300U natural Sound AMPLIFIER
i would like to replace some of the component with better pats.
any sugestion? this amp is only 2 X 37 chanel

any idea ?


**Replace it with a Rotel.


Not necessarily an improvement, Trevor. I have a Yamaha RX-485


**BZZZZT! How long has the RX-485 been identical to a Rotel?
How relevant is it to compare a Rotel to a Yamaha, when using headphones if
the vast majority of people listen via speakers?


receiver and it sounds brilliant--better than the several budget
Rotels I've had.

I'd ask the OP why he feels the need for better compontents. What does
he feel the sound is lacking?


**He probably uses speakers. Rotels are designed to operate with speakers.
Yamahas work better with dummy loads.


Says you and how many others? I cite the following on the RX-485:

"One company that does make high-current receivers for those on a
tight budget is Yamaha. Rated at 65w/ch continuously into 8 ohms, that
power goes up to 70w/ch for 6 ohm loads like the Mini-Reference. And
the dynamic power output figures really show greater
capabilities--into 8/6/4/2 ohms respectively, IHF rated dynamic power
is 96/115/135/150 watts/ch (and all these are full 20hz-20Khz
bandwidth ratings, unlike the cheating I've seen some companies do by
only measuring their amplifiers driving a 40hz+ signal). This sort of
output, with power going up into lower loads, is a characteristic of a
good design with a good power supply. Receivers without dynamic
headroom, and those that have their power drop dramatically below 8
ohms, are not recommended for driving real speakers no matter how high
their wattage figures may be."

from this link:

http://www.soundstage.com/entry01.htm