Fairly rare version of the L-550 bestseller : third of the name, after the really upgraded L-550X, the L-560 is more of a cosmetic variation - but it does have better specs.
As the L-550 sold extremely well, it was normal for Alpine to try and extend the success stride Lux managed to have during its last two years of independence.
The L-560 is an L-550X in shiny looks, without linear equalizer, a simplified phono loading selector (two MC positions instead of three and one instead of three for MM loading) but with an added second position for "straight" signal path (phono or CD), a redesigned wood enclosure and better s/n ratio and THD specifications.
Also : DAD became... CD.
Hardware-wise, the rest is identical : STAR earthing circuit, bigga Bando toroidal transformer, partly copper-plated chassis and dual Heat-Pipe.
Circuit-wise no changes - see the L-550 page for detailed descriptions.
Unlike the L-550X and L-530X, the 560 was distributed outside Japan as well, along with the L-525, the latter being a shiny L-510X.
In Japan, this upgrade from the 550X cost 50,000¥ - maybe why it didn't sell too well, despite a Stereo Sound "Best Product" distinction in 1986.
Replaced by the L-570... and its later L-570X's and L-570Z's and L-580 versions.
One nudie of a 560 here, nudies aplenty of the 550X original at the indispensable amp8.com and a real 560 here.