This page compares sounds of YAMAHA DX7 and
DX7II.
DX7II is upper-compatible with DX7.
While DX7 uses 12-bit D/A, DX7II has 16-bit one and better frequency response.
YAMAHA DX7 (1983)
YAMAHA DX7IIFD (1986)
Sound Examples
Here are .mp3 sound examples of DX7 and DX7II.
The same Voice data are used with TX7 and TX802 (module versions of DX7 and DX7II).
All sounds are recorded without external effects.
The difference is not so significant that one may not notice the difference without A-B test.
To me, DX7II sounds clearer and more hi-fi, but DX7 sounds harsher, fuzzier and warmer.
About
This page compares sounds of YAMAHA DX7 and DX7II.DX7 Bass (85KB)
Moline A Russian page filled with FM comparison sound examples - TX802, FM7, FM Heaven, VX7 and DX10
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