Upgrade the amplifiers & speakers in the Yamaha CVP 505 ?

by Michael Flanagan
(Halls Head, Western Auistralia 6210)

LM Yamaha.com Review says the 40W amplifiers and speakers do not do justice to the CVP 505. See below:

Pros
? All new beautiful 4-level CFIIIS piano samples
? 128 notes of polyphony
? Way more new sounds (see table below)
? USB audio recorder with MIC/LINE IN input
? 16-track sequencer
? 2.4MB vs. CVP-403's 1.4MB data capacity
? Colour LCD
Cons
? Would have been nice to be able to record a sequence to audio and record directly to .mp3 instead of .wav
? 40W amps and speakers don't truly do the CVP-505's piano sounds justice


How do I upgrade/IMPROVE the amplifiers and speakers in the Yamaha CVP 505 and at what cost to me without buying the CVP 509?


Amplifiers and Speakers for Yamaha CVP 509
Amplifiers (35W + 20W + 20W) x 2 + 20W x 2
Speakers (16cm + 5cm + 3cm (dome)) x 2 + 10cm x 2 (6 5/16" + 1 15/16" +1 3/16" (dome) x 2 + 3 15/16" x 2

I am about to purchase a CVP 505 PE next week.

Thanking you in anticpation